IEC 61508 Part 3 \u2014 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c<\/title>\n <style>\n :root {\n --navy: #1c385c;\n --navy-2: #2d537e;\n --ink: #242832;\n --muted: #5f6875;\n --line: #cdd6e1;\n --soft-blue: #e6edf5;\n --soft-gray: #f6f7f9;\n --soft-green: #ebf6ef;\n --soft-orange: #fcf2e5;\n --accent: #a95e16;\n --white: #ffffff;\n --shadow: 0 10px 30px rgba(31, 51, 75, 0.08);\n }\n\n * { box-sizing: border-box; }\n html { scroll-behavior: smooth; }\n body {\n margin: 0;\n color: var(--ink);\n background: #eef2f6;\n font-family: \"Noto Sans KR\", \"Apple SD Gothic Neo\", \"Malgun Gothic\", \"Segoe UI\", sans-serif;\n line-height: 1.72;\n word-break: keep-all;\n overflow-wrap: break-word;\n }\n a { color: var(--navy-2); text-decoration-thickness: 1px; text-underline-offset: 3px; }\n h1, h2, h3, h4 { color: var(--navy); line-height: 1.34; letter-spacing: -0.02em; }\n h1 { font-size: clamp(2rem, 4vw, 3.3rem); margin: 0 0 0.5rem; }\n h2 {\n font-size: clamp(1.55rem, 2.4vw, 2.15rem);\n margin: 4.2rem 0 1.3rem;\n padding-bottom: 0.55rem;\n border-bottom: 3px solid var(--navy);\n }\n h3 { font-size: clamp(1.22rem, 1.8vw, 1.55rem); 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}\n .v-right { border-left: 5px solid var(--accent); }\n .v-match { text-align: center; color: var(--muted); font-size: 0.9rem; font-weight: 700; }\n\n .table-wrap {\n width: 100%;\n overflow-x: auto;\n margin: 1rem 0 1.4rem;\n border: 1px solid var(--line);\n border-radius: 10px;\n }\n table {\n width: 100%;\n border-collapse: collapse;\n min-width: 720px;\n background: #fff;\n }\n th, td {\n padding: 0.75rem 0.8rem;\n text-align: left;\n vertical-align: top;\n border-bottom: 1px solid #dce3eb;\n }\n th { background: var(--soft-blue); color: var(--navy); font-weight: 800; }\n tr:last-child td { border-bottom: 0; }\n td:first-child { font-weight: 700; color: #263c58; }\n\n .keyword-grid {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n gap: 0.85rem;\n }\n .keyword-card {\n border: 1px solid var(--line);\n border-radius: 10px;\n background: #fff;\n padding: 0.95rem 1rem;\n }\n .keyword-card dt { font-weight: 800; color: var(--navy); margin-bottom: 0.25rem; }\n .keyword-card dd { margin: 0; color: #3f4752; }\n\n .source-note {\n display: block;\n margin-top: 0.65rem;\n color: var(--muted);\n font-size: 0.88rem;\n font-style: italic;\n }\n .definition {\n margin: 1rem 0;\n padding: 1.05rem 1.1rem;\n border: 2px solid var(--navy);\n border-radius: 10px;\n background: var(--soft-blue);\n font-size: 1.04rem;\n font-weight: 650;\n }\n .example {\n margin: 0.8rem 0;\n padding: 0.85rem 1rem;\n background: #f4f6f8;\n border: 1px solid #d9e0e8;\n border-radius: 8px;\n white-space: pre-line;\n }\n .back-top {\n display: inline-block;\n margin-top: 1.4rem;\n font-size: 0.9rem;\n }\n footer {\n padding: 1.3rem clamp(1.4rem, 4vw, 4.8rem) 2.2rem;\n color: var(--muted);\n background: #f7f9fb;\n border-top: 1px solid var(--line);\n }\n\n @media (max-width: 760px) {\n .page { width: 100%; margin: 0; border-radius: 0; border-left: 0; border-right: 0; }\n main { padding: 1.1rem; }\n .hero { padding: 2rem 1.1rem; }\n .vmodel { grid-template-columns: 1fr; }\n .v-match { padding: 0.15rem 0; }\n .flow .arrow { flex-basis: 100%; transform: rotate(90deg); height: 16px; }\n .toc-grid { grid-template-columns: 1fr; }\n table { min-width: 640px; }\n }\n\n @media print {\n body { background: #fff; font-size: 10.5pt; }\n .page { width: 100%; margin: 0; border: 0; border-radius: 0; box-shadow: none; }\n .hero { background: #fff !important; color: #000; padding: 0 0 1rem; border-bottom: 2px solid #000; }\n .hero h1, .hero .subtitle, .hero .eyebrow { color: #000; }\n .toolbar { display: none; }\n main { padding: 0; }\n h2 { page-break-before: auto; }\n h2, h3 { break-after: avoid; }\n .box, .table-wrap, .keyword-card, .definition { break-inside: avoid; }\n a { color: #000; text-decoration: none; }\n .back-top { display: none; }\n footer { padding: 1rem 0 0; background: #fff; }\n }\n <\/style>\n<\/head>\n<body id=\"top\">\n <article class=\"page\">\n <header class=\"hero\">\n <span class=\"eyebrow\">IEC 61508 Part 3 \u00b7 Chapter 4<\/span>\n <h1>\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c \uc815\ub9ac<\/h1>\n <p class=\"subtitle\"><em>The Safety Critical Systems Handbook<\/em> Chapter 4\uc758 \uc21c\uc11c\uc640 \uc6a9\uc5b4\ub97c \uc720\uc9c0\ud558\uc5ec, \uccb4\uacc4\uc801 \uace0\uc7a5 \uad00\ub9ac\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \ud55c \ud654\uba74\uc758 \ub2e8\uc77c \ud504\ub808\uc784\uc73c\ub85c \uc815\ub9ac\ud55c \ud559\uc2b5 \ub178\ud2b8\uc774\ub2e4.<\/p>\n <div class=\"toolbar\">\n <button class=\"button\" type=\"button\" onclick=\"window.print()\">\uc778\uc1c4\u00b7PDF \uc800\uc7a5<\/button>\n <button class=\"button\" type=\"button\" onclick=\"document.getElementById('toc').scrollIntoView()\">\ubaa9\ucc28\ub85c \uc774\ub3d9<\/button>\n <\/div>\n <\/header>\n\n <main>\n <div class=\"box summary\">\n <span class=\"box-title\">Chapter 4\uc758 \ud575\uc2ec<\/span>\n Chapter 4\ub294 IEC 61508 Part 3\uc758 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\uc744 \uc124\uba85\ud55c\ub2e4. \ud575\uc2ec \ub300\uc0c1\uc740 \ub79c\ub364 \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5\uc774 \uc544\ub2c8\ub77c \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8 \ubc0f \ubcc0\uacbd \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 <strong>\uccb4\uacc4\uc801 \uace0\uc7a5<\/strong>\uc774\ub2e4. \ub530\ub77c\uc11c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc740 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uc608\uce21\ud558\uc5ec \uc785\uc99d\ud558\uc9c0 \uc54a\ub294\ub2e4. \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30, \uc124\uacc4\uae30\ubc95, \uac80\ud1a0, \uc2dc\ud5d8, \ud615\uc0c1\uad00\ub9ac \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uc608\ubc29\ud558\uace0 \ubc1c\uacac\ud55c\ub2e4.\n <\/div>\n\n <div class=\"box\">\n <span class=\"box-title\">\uc774 \ubb38\uc11c\uc758 \uad6c\uc131<\/span>\n <ol>\n <li>\ud575\uc2ec \ud0a4\uc6cc\ub4dc\ub97c \uc815\uc758\ud55c\ub2e4.<\/li>\n <li>\ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4\ub97c V-Model\uacfc \uc0dd\uba85\uc8fc\uae30 \uad00\uc810\uc5d0\uc11c \uc815\ub9ac\ud55c\ub2e4.<\/li>\n <li>\uc6d0\ubb38\uc758 \ud750\ub984\uc5d0 \ub530\ub77c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \uc124\uba85\ud55c\ub2e4.<\/li>\n <li>\ud615\uc0c1\uad00\ub9ac\ub97c \ubcc4\ub3c4\ub85c \uc815\ub9ac\ud558\uc5ec \uae30\uc900\uc120, \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, Release\uc758 \uad00\uacc4\ub97c \uba85\ud655\ud788 \ud55c\ub2e4.<\/li>\n <\/ol>\n <\/div>\n\n <nav class=\"toc\" id=\"toc\" aria-label=\"\ubb38\uc11c \ubaa9\ucc28\">\n <h2>\ubaa9\ucc28<\/h2>\n <div class=\"toc-grid\">\n <a href=\"#essence\">1. Chapter 4\uc758 \ubcf8\uc9c8<\/a>\n <a href=\"#keywords\">2. \ud0a4\uc6cc\ub4dc \uc815\uc758<\/a>\n <a href=\"#relations\">3. \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4<\/a>\n <a href=\"#flow-explanation\">4. \uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85<\/a>\n <a href=\"#configuration\">5. \ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac<\/a>\n <a href=\"#summary\">6. \ucd5c\uc885 \uc694\uc57d<\/a>\n <a href=\"#references\">7. \ucc38\uace0\ubb38\ud5cc<\/a>\n <\/div>\n <\/nav>\n\n <section id=\"essence\">\n <h2>1. Chapter 4\uc758 \ubcf8\uc9c8<\/h2>\n <h3>1.1 \uc801\uc6a9 \ubc94\uc704<\/h3>\n <p>IEC 61508 Part 3\uc740 \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac1c\ubc1c\uc744 \ub2e4\ub8ec\ub2e4. \uc801\uc6a9 \ub300\uc0c1\uc740 \ud06c\uac8c \ub2e4\uc74c \ub450 \uacbd\uc6b0\ub85c \uad6c\ubd84\ub41c\ub2e4.<\/p>\n <ul>\n <li><strong>Embedded software design:<\/strong> \ud558\ub4dc\uc6e8\uc5b4\uc640 \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub41c \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0<\/li>\n <li><strong>Application software:<\/strong> \uac80\uc99d\ub41c PLC \ud50c\ub7ab\ud3fc \ub4f1\uc5d0 \uc751\uc6a9 \ub85c\uc9c1\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0<\/li>\n <\/ul>\n <p>\ub450 \uacbd\uc6b0 \ubaa8\ub450 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc0dd\uba85\uc8fc\uae30\uac00 \ud544\uc694\ud558\ub2e4. \ub2e4\ub9cc \uc0dd\uba85\uc8fc\uae30\uc758 \ub2e8\uacc4 \uc218\uc640 \uac80\uc99d \uac15\ub3c4\ub294 \ubaa9\ud45c SIL\uacfc \uc2dc\uc2a4\ud15c \ubcf5\uc7a1\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4.<\/p>\n\n <h3>1.2 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc758 \uc758\ubbf8<\/h3>\n <p>\ud558\ub4dc\uc6e8\uc5b4 \uc2e0\ub8b0\ub3c4 \uc608\uce21\uc740 \uc608\uc0c1 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc815\uc131\uc801 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\uace0 \ud574\uc11c \uccb4\uacc4\uc801 \uace0\uc7a5\uc758 \uace0\uc7a5\ub960\uc774 \uacc4\uc0b0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.<\/p>\n <div class=\"box warning\">\n <span class=\"box-title\">\uc815\ub7c9\uc801 \uc624\ud574 \ubc29\uc9c0<\/span>\n \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\ub294 \uc0ac\uc2e4\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc218\uce58\ub85c \uc9c1\uc811 \uc785\uc99d\ud55c \uac83\uc774 \uc544\ub2c8\ub2e4. \ud604\uc7ac\uc758 \uae30\uc220\uc218\uc900\uc5d0\uc11c \ud574\ub2f9 SIL\uc5d0 \uc801\uc808\ud55c \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d\uc218\ub2e8\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \ucda9\ubd84\ud788 \uc5b5\uc81c\ud588\ub2e4\uace0 \ud310\ub2e8\ud558\ub294 \uac83\uc774\ub2e4.\n <\/div>\n\n <h3>1.3 \uc804\uccb4 \ud750\ub984<\/h3>\n <div class=\"flow\" aria-label=\"Chapter 4 \uc804\uccb4 \ud750\ub984\">\n <div class=\"node\">\uae30\ub2a5\uc548\uc804\uad00\ub9ac<br>\uac1c\ubc1c\uacc4\ud68d<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc18c\ud504\ud2b8\uc6e8\uc5b4<br>\uc548\uc804\uc694\uad6c\uc0ac\ud56d<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc544\ud0a4\ud14d\ucc98\uc640<br>\uc0c1\uc138\uc124\uacc4<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ucf54\ub529\uacfc<br>\ub3c4\uad6c \ud1b5\uc81c<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ubaa8\ub4c8\u00b7\ud1b5\ud569\uc2dc\ud5d8<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc804\uccb4 \ud1b5\ud569\uacfc<br>Validation<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Safety Manual<br>\ubcc0\uacbd\uad00\ub9ac<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc801\ud569\uc131 \uc785\uc99d<br>Evidence<\/div>\n <\/div>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"keywords\">\n <h2>2. \ud0a4\uc6cc\ub4dc \uc815\uc758<\/h2>\n <h3>2.1 \uae30\ubcf8 \uac1c\ub150<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>IEC 61508 Part 3<\/dt><dd>\uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8, Validation, \ubcc0\uacbd \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \ub2e4\ub8e8\ub294 \uaddc\uc815\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uccb4\uacc4\uc801 \uace0\uc7a5<\/dt><dd>\uc694\uad6c\uc0ac\ud56d \uc624\ub958, \uc124\uacc4\uacb0\ud568, \ucf54\ub529\uc624\ub958, \ub3c4\uad6c\uc624\ub958 \ub610\ub294 \ubcc0\uacbd\uc624\ub958\ucc98\ub7fc \ud2b9\uc815 \uc870\uac74\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uace0\uc7a5\uc774\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd80\ud488 \uace0\uc7a5\ub960 \ubc29\uc2dd\uc73c\ub85c \uc9c1\uc811 \uc608\uce21\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>SIL<\/dt><dd>Safety Integrity Level\uc758 \uc57d\uc5b4\uc774\ub2e4. \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c\ub294 SIL\uc774 \ub192\uc544\uc9c8\uc218\ub85d \uc694\uad6c\uc0ac\ud56d \ud45c\ud604, \uc124\uacc4\uae30\ubc95, \uc2dc\ud5d8\ubc94\uc704, \ub3c5\ub9bd\uc131 \ubc0f \ubb38\uc11c\ud654\uac00 \uac15\ud654\ub41c\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4<\/dt><dd>\uac80\uc99d\ub41c \ud50c\ub7ab\ud3fc \uc704\uc5d0 \ud2b9\uc815 \uacf5\uc815\uc774\ub098 \uc548\uc804\uae30\ub2a5\uc744 \uad6c\ud604\ud558\ub294 \ub85c\uc9c1\uc774\ub2e4. PLC \ub798\ub354\uc640 Function Block \ub4f1\uc774 \ub300\ud45c\uc801\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4<\/dt><dd>\ud558\ub4dc\uc6e8\uc5b4 \uae30\ub2a5\uacfc \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub418\uc5b4 \uac1c\ubc1c\ub418\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc774\ub2e4. \uace0\uae09\uc5b8\uc5b4\uc640 \uc5b4\uc148\ube14\ub7ec\uac00 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\uba70 \ub354 \uc0c1\uc138\ud55c \uc124\uacc4\uc640 \ubd84\uc11d\uc774 \ud544\uc694\ud558\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.2 \uc0dd\uba85\uc8fc\uae30\uc640 \uad00\ub9ac<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>Software Development Plan<\/dt><dd>\uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\uad00\ub9ac, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \uc815\uc758\ud558\ub294 \uacc4\ud68d\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>V-Model<\/dt><dd>\uc694\uad6c\uc0ac\ud56d\uc5d0\uc11c \ucf54\ub4dc\ub85c \uad6c\uccb4\ud654\ud558\uace0, \ucf54\ub4dc\uc5d0\uc11c \ubaa8\ub4c8\u00b7\ud1b5\ud569\u00b7\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc2dc\ud5d8\uc73c\ub85c \uc62c\ub77c\uac00\uba70 \uac01 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a4\ub294 \uc0dd\uba85\uc8fc\uae30 \ubaa8\ub378\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Verification<\/dt><dd>\uac01 \ub2e8\uacc4\uc758 \uc0b0\ucd9c\ubb3c\uc774 \uc774\uc804 \ub2e8\uacc4\uc758 \uc785\ub825\uacfc \uc694\uad6c\uc0ac\ud56d\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\uc871\ud558\ub294\uc9c0 \uac80\ud1a0\ud558\uace0 \uc2dc\ud5d8\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Validation<\/dt><dd>\ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uba70 \ud544\uc694\ud55c \uc808\ucc28\uac00 \uc218\ud589\ub418\uc5c8\ub294\uc9c0\ub97c \ucd5c\uc885 \ud655\uc778\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ud615\uc0c1\uad00\ub9ac<\/dt><dd>\ud615\uc0c1\ud56d\ubaa9\uc744 \uc2dd\ubcc4\ud558\uace0 \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\uba70 \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Baseline<\/dt><dd>\uac80\ud1a0\uc640 \uc2b9\uc778\uc774 \uc644\ub8cc\ub418\uc5b4 \uc774\ud6c4 \ubcc0\uacbd\uc774 \uacf5\uc2dd \ubcc0\uacbd\uc808\ucc28\ub97c \ud1b5\ud574\uc11c\ub9cc \ud5c8\uc6a9\ub418\ub294 \ud615\uc0c1\uc758 \uae30\uc900\uc810\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ucd94\uc801\uc131<\/dt><dd>\uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\ud56d\ubaa9 \ubc0f \uc2dc\ud5d8\uacb0\uacfc\uc640 \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ub418\ub294 \uc131\uc9c8\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.3 \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>Software Safety Requirements Specification<\/dt><dd>\uc548\uc804\uae30\ub2a5\uacfc \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud615\ud0dc\ub85c \uc815\uc758\ud558\ub294 \ubb38\uc11c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubc18\uc815\ud615 \uae30\ubc95<\/dt><dd>Logic Diagram, Cause and Effect Chart, State Transition Diagram, Truth Table, Data Flow Diagram \ub4f1 \uc790\uc5f0\uc5b4\ubcf4\ub2e4 \uad6c\uc870\ud654\ub41c \ud45c\ud604\ubc29\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8\ud654<\/dt><dd>\uae30\ub2a5\uc744 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ub2e8\uc704\ub85c \ubd84\ub9ac\ud558\uc5ec \ubcf5\uc7a1\ub3c4\ub97c \ub0ae\ucd94\uace0 \uc2dc\ud5d8\uacfc \ubcc0\uacbd\uc744 \uc6a9\uc774\ud558\uac8c \ud558\ub294 \uc124\uacc4\uc6d0\uce59\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ube44\uac04\uc12d\uc131<\/dt><dd>\ube44\uc548\uc804 \uae30\ub2a5\uc758 \uc624\ub958\ub098 \uc790\uc6d0\uc0ac\uc6a9\uc774 \uc548\uc804\uad00\ub828 \uae30\ub2a5\uc758 \uc218\ud589\uc744 \ubc29\ud574\ud558\uc9c0 \uc54a\ub294 \uc131\uc9c8\uc774\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \uc2dc\uac04, \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c\ub97c \uac80\ud1a0\ud55c\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d<\/dt><dd>\uc785\ub825 \ubc94\uc704, \ud0c0\ub2f9\uc131, \uc0c1\ud0dc\uc804\uc774 \ubc0f \uc624\ub958\uc870\uac74\uc744 \uac80\uc0ac\ud558\uc5ec \ube44\uc815\uc0c1 \uc0c1\ud669\uc744 \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\ub294 \ucf54\ub529\ubc29\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569<\/dt><dd>\ub3d9\uc801 \uac1d\uccb4, \ubb34\uc870\uac74 \ubd84\uae30, \uacfc\ub3c4\ud55c \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130 \ub4f1 \uac80\uc99d\uc744 \uc5b4\ub835\uac8c \ud558\ub294 \uae30\ub2a5\uc744 \uc81c\ud55c\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uaddc\uce59\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc9c0\uc6d0\ub3c4\uad6c<\/dt><dd>Compiler, PLC Engineering Tool, Code Generator, \uc815\uc801\ubd84\uc11d \ub3c4\uad6c, PFD \uacc4\uc0b0 \ud504\ub85c\uadf8\ub7a8 \ub4f1 \uc0dd\uba85\uc8fc\uae30 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ub3c4\uad6c\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.4 \uc2dc\ud5d8, \uc7ac\uc0ac\uc6a9 \ubc0f \uc801\ud569\uc131 \uc785\uc99d<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8\uc2dc\ud5d8<\/dt><dd>\uac1c\ubcc4 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc218\ud589\ud558\uace0 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8<\/dt><dd>\ubaa8\ub4c8\uc744 \ub2e8\uacc4\uc801\uc73c\ub85c \uacb0\ud569\ud558\uc5ec \uae30\ub2a5, \uc778\ud130\ud398\uc774\uc2a4, Black Box \ub3d9\uc791 \ubc0f \uc131\ub2a5\uc744 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0<\/dt><dd>\uc694\uad6c\uc0ac\ud56d, \ucf54\ub4dc\uacbd\ub85c, \uacbd\uacc4\uc870\uac74 \ub610\ub294 \uc0c1\ud0dc\uc870\ud569\uc774 \uc2dc\ud5d8\uc73c\ub85c \uc5bc\ub9c8\ub098 \ud655\uc778\ub418\uc5c8\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Safety Manual<\/dt><dd>\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uae30\ub2a5, \uad6c\uc131, \uac00\uc815, \uc124\uce58\uc870\uac74, \ub3c4\uad6c\ubc84\uc804, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d \ubc0f \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\uc744 \uc81c\uacf5\ud558\ub294 \ubb38\uc11c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Trusted\/Verified Module<\/dt><dd>\uc774\uc804\uc5d0 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub418\uc5c8\uac70\ub098 \uc720\uc0ac\ud55c \uc6a9\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ub41c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774\ub2e4. \ud604\uc7ac \ud658\uacbd\uc5d0 \ub300\ud55c \uc801\ud569\uc131 \uac80\ud1a0\ub294 \ubcc4\ub3c4\ub85c \ud544\uc694\ud558\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Data-driven System<\/dt><dd>\uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc758 \uae30\ub2a5\uc744 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uad6c\uc131\ud558\uc5ec \uc751\uc6a9\uae30\ub2a5\uc744 \ub9cc\ub4dc\ub294 \uc2dc\uc2a4\ud15c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc815\uc801\ubd84\uc11d<\/dt><dd>\ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc5f0\uc0b0\uad00\uacc4\ub97c \ubd84\uc11d\ud558\ub294 \uae30\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ud615\uc2dd\uae30\ubc95<\/dt><dd>\uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \ud45c\ud604\ud558\uace0 \uac80\uc99d\ud558\ub294 \uae30\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc801\ud569\uc131 \uc785\uc99d<\/dt><dd>\ud45c\uc900\uc758 \uac01 \uc694\uad6c\uc0ac\ud56d\uacfc \uc774\ub97c \ucda9\uc871\ud558\ub294 \uacc4\ud68d\uc11c, \uc0ac\uc591\uc11c, \uc124\uacc4\uc11c, \uac80\ud1a0\uc11c \ubc0f \uc2dc\ud5d8\uc131\uc801\uc11c\ub97c \uc5f0\uacb0\ud558\ub294 \ubb38\uc11c\ud654 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"relations\">\n <h2>3. \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4<\/h2>\n <h3>3.1 V-Model \uad00\uacc4<\/h3>\n <div class=\"vmodel\" role=\"figure\" aria-label=\"V-Model \uac1c\ubc1c\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4 \ub300\uc751\">\n <div class=\"v-left\">\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d<\/div><div class=\"v-match\">\u2194 \uc694\uad6c\uc0ac\ud56d \ucda9\uc871<\/div><div class=\"v-right\">\uc804\uccb4\uc2dc\ud5d8\u00b7Validation<\/div>\n <div class=\"v-left\">\uc544\ud0a4\ud14d\ucc98\u00b7\uc911\uac04\uc124\uacc4<\/div><div class=\"v-match\">\u2194 \uad6c\uc870\u00b7\uc778\ud130\ud398\uc774\uc2a4<\/div><div class=\"v-right\">\ud1b5\ud569\uc2dc\ud5d8<\/div>\n <div class=\"v-left\">\ubaa8\ub4c8 \uc0c1\uc138\uc124\uacc4<\/div><div class=\"v-match\">\u2194 \ubaa8\ub4c8 \uae30\ub2a5<\/div><div class=\"v-right\">\ubaa8\ub4c8\uc2dc\ud5d8<\/div>\n <div class=\"v-left\">\ucf54\ub529<\/div><div class=\"v-match\">\u2192 \uc2e4\ud589 \uac00\ub2a5\ud55c \uad6c\ud604<\/div><div class=\"v-right\">\uc2dc\ud5d8\uc99d\uac70 \ucd95\uc801<\/div>\n <\/div>\n <div class=\"box\">\n <span class=\"box-title\">V-Model\uc758 \ud575\uc2ec<\/span>\n V-Model\uc740 \ucf54\ub529 \ud6c4 \uc2dc\ud5d8\uc744 \uc2dc\uc791\ud558\ub294 \ubc29\uc2dd\uc774 \uc544\ub2c8\ub2e4. \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc791\uc131\ud560 \ub54c \ub300\uc751 \uc2dc\ud5d8\ubc29\ubc95\uacfc \ud569\uaca9\uae30\uc900\uc744 \ud568\uaed8 \uc815\ud558\uace0, \uac01 \uac1c\ubc1c\ub2e8\uacc4\uc758 \uacb0\uacfc\ub97c \ub300\uc751 \uc2dc\ud5d8\ub2e8\uacc4\uc5d0\uc11c \ud655\uc778\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.\n <\/div>\n\n <h3>3.2 Verification\uacfc Validation\uc758 \ucc28\uc774<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uad6c\ubd84<\/th><th>Verification<\/th><th>Validation<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\ud575\uc2ec \uc9c8\ubb38<\/td><td>\uac01 \uc0b0\ucd9c\ubb3c\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\ub4e4\uc5c8\ub294\uac00?<\/td><td>\uc644\uc131\ub41c \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\uc801\uc744 \ub9cc\uc871\ud558\ub294\uac00?<\/td><\/tr>\n <tr><td>\uc801\uc6a9 \uc2dc\uc810<\/td><td>\uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \ubaa8\ub4c8\ud1b5\ud569 \ub4f1 \uac01 \ub2e8\uacc4<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \ud1b5\ud569 \ud6c4 \ucd5c\uc885 \ud655\uc778<\/td><\/tr>\n <tr><td>\uc8fc\uc694 \ubc29\ubc95<\/td><td>Review, Code Review, \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8<\/td><td>Acceptance Test, \uc694\uad6c\uc0ac\ud56d\ubcc4 \uc885\ud569 \ud655\uc778, \uc808\ucc28 \uc900\uc218 \ud655\uc778<\/td><\/tr>\n <tr><td>\uc8fc\uc694 \uc99d\uac70<\/td><td>\uac80\ud1a0\uae30\ub85d, \ubaa8\ub4c8\uc2dc\ud5d8\uc131\uc801\uc11c, \ud1b5\ud569\uc2dc\ud5d8\uc131\uc801\uc11c<\/td><td>Validation Plan, \ucd5c\uc885 \uc2dc\ud5d8\uacb0\uacfc, \ubd88\uc77c\uce58 \uc885\uacb0\uae30\ub85d<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>3.3 SIL \uc0c1\uc2b9\uc5d0 \ub530\ub978 \uc694\uad6c\uc218\uc900<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\ud56d\ubaa9<\/th><th>SIL 1\u20132<\/th><th>SIL 3<\/th><th>SIL 4<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\uc694\uad6c\uc0ac\ud56d \ud45c\ud604<\/td><td>\ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95<\/td><td>\ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95<\/td><td>\ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uacfc \ud575\uc2ec\ubd80\ubd84\uc758 \ucef4\ud4e8\ud130 \uc9c0\uc6d0<\/td><\/tr>\n <tr><td>\ucf54\ub529<\/td><td>\uad6c\uc870\ud654\u00b7\uc81c\ud55c\ub41c \uc5b8\uc5b4, SIL 2 \uc774\uc0c1 \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30 \uae08\uc9c0<\/td><td>\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d, \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130\u00b7\uc7ac\uadc0 \uc81c\ud55c \uac15\ud654<\/td><td>SIL 3 \uc218\uc900\uc5d0 \ub354 \uc5c4\uaca9\ud55c \uc801\uc6a9<\/td><\/tr>\n <tr><td>\uc2dc\ud5d8<\/td><td>\uacbd\uacc4\uac12\uc2dc\ud5d8, \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8<\/td><td>\uc911\uc694 \uc0ac\uac74\uc758 Cause-Consequence \uae30\ubc18 \uc2dc\ud5d8 \ucd94\uac00<\/td><td>SIL 3 \uc218\uc900\uc5d0 \ub354 \ub192\uc740 \uc5c4\uaca9\uc131<\/td><\/tr>\n <tr><td>Validation<\/td><td>SIL 2 \uc774\uc0c1 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c \uc81c\uc2dc<\/td><td>\uc815\ud655\uc131\u00b7\uc77c\uad00\uc131\u00b7\ucf54\ub529\uaddc\uce59 \uc900\uc218\uc758 \uac15\ud654\ub41c \ud655\uc778<\/td><td>\ud615\uc2dd\uae30\ubc95 \ub4f1\uc744 \ud3ec\ud568\ud55c \ucd5c\uace0 \uc218\uc900\uc758 \ud655\uc778<\/td><\/tr>\n <tr><td>\ubcc0\uacbd \ud6c4<\/td><td>SIL 1 \ubcc0\uacbd \ubaa8\ub4c8, SIL 2 \uc601\ud5a5 \ubaa8\ub4c8 \uc7ac\uac80\uc99d<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation\uacfc \ub354 \uc5c4\uaca9\ud55c \uc99d\uac70<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>3.4 \ud615\uc0c1\uad00\ub9ac\uc640 \uc2dc\ud5d8\uc99d\uac70\uc758 \uad00\uacc4<\/h3>\n <div class=\"flow\">\n <div class=\"node\">\ud615\uc0c1\ud56d\ubaa9 \uc2dd\ubcc4<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Baseline \uc2b9\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc2b9\uc778 \ud615\uc0c1 \uc2dc\ud5d8<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Release \uc2b9\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ud604\uc7a5 \uc124\uce58\ubcf8 \ud655\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ubcc0\uacbd\uc694\uccad\u00b7\uc601\ud5a5\ubd84\uc11d<\/div>\n <\/div>\n <div class=\"box summary\">\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\ud5d8\ud55c \ud615\uc0c1\uc758 \ubc84\uc804\uc774 \uba85\ud655\ud560 \ub54c\ub9cc \uc720\ud6a8\ud55c \uc99d\uac70\uac00 \ub41c\ub2e4. \ud615\uc0c1\uad00\ub9ac\ub294 \uc124\uacc4\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, \uc2dc\ud5d8\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, Release\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \ub3d9\uc77c\ud558\ub2e4\ub294 \uac83\uc744 \ubcf4\uc99d\ud55c\ub2e4.<\/div>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"flow-explanation\">\n <h2>4. \uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85<\/h2>\n\n <h3>4.1 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uc758 \uc870\uc9c1\uacfc \uad00\ub9ac<\/h3>\n <p>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc740 \uae30\ub2a5\uc548\uc804\uad00\ub9ac\uccb4\uacc4 \uc548\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud55c\ub2e4. \uac1c\ubc1c\uacc4\ud68d\uc5d0\ub294 \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\ud56d\ubaa9, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \ud3ec\ud568\ud55c\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc758 \ubcf5\uc7a1\ub3c4\uc640 \ubaa9\ud45c SIL\uc5d0 \ub9de\ucd94\uc5b4 \uc0dd\uba85\uc8fc\uae30\ub97c \uc815\uc758\ud558\uace0 \ubb38\uc11c\ub85c \uc124\uba85\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\ud45c\uc900\uc740 V-Model\uc744 \uad8c\uace0\ud558\uc9c0\ub9cc Waterfall \ub4f1 \ub2e4\ub978 \ubaa8\ub378\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc V-Model\uacfc \ub3d9\ub4f1\ud55c \uc124\uacc4\ub2e8\uacc4, \uac80\uc99d\ub2e8\uacc4, \ucd94\uc801\uc131 \ubc0f \uac80\ud1a0 \ud2b9\uc131\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4. SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud45c\uc900 \uc0dd\uba85\uc8fc\uae30 \ud65c\ub3d9\uacfc \ub2e4\ub978 \ubd80\ubd84\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\ub2f9\ud654\ud558\uace0 \uac80\ud1a0\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.1 Organizing and Managing the Software Engineering<\/span>\n\n <h3>4.2 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28 \uc124\uc815<\/h3>\n <p>\uc6d0\ubb38\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28\uc5d0 \ub2e4\uc74c \ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud3ec\ud568\ud558\ub3c4\ub85d \uc694\uad6c\ud55c\ub2e4.<\/p>\n <ol>\n <li>\ud615\uc0c1\ud1b5\uc81c\ub97c \uc2dc\uc791\ud558\ub294 \uc0dd\uba85\uc8fc\uae30 \ub2e8\uacc4<\/li>\n <li>\uae30\uc900\uc120\uc744 \uc124\uc815\ud558\ub294 \uc704\uce58\uc640 \uc2b9\uc778\ubc29\ubc95<\/li>\n <li>\uc694\uad6c\uc0ac\ud56d \ucd94\uc801\ubc29\ubc95<\/li>\n <li>\ubcc0\uacbd\ud1b5\uc81c \uc808\ucc28<\/li>\n <li>\ubcc0\uacbd \uc601\ud5a5\ud3c9\uac00<\/li>\n <li>Release\uc640 \ud3d0\uae30 \uaddc\uce59<\/li>\n <\/ol>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud615\uc0c1\ud1b5\uc81c\ub97c \uac00\uc7a5 \uc791\uc740 \ucef4\ud30c\uc77c \ubaa8\ub4c8 \ub610\ub294 \ub2e8\uc704\uae4c\uc9c0 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.1, software configuration management process<\/span>\n\n <h3>4.3 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uba85\uc138\uc11c \uc791\uc131<\/h3>\n <p>Software Safety Requirements Specification\uc5d0\ub294 \uc548\uc804\uae30\ub2a5\uacfc \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \ud568\uaed8 \uaddc\uc815\ud55c\ub2e4. \uc8fc\uc694 \ud56d\ubaa9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n <ul>\n <li>\ucc98\ub9ac\uc6a9\ub7c9\uacfc \uc751\ub2f5\uc2dc\uac04<\/li>\n <li>\uc7a5\ube44 \ubc0f \uc6b4\uc804\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc624\uc0ac\uc6a9<\/li>\n <li>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc790\uae30\uac10\uc2dc\uc640 \uc548\uc804\uc0c1\ud0dc \uac15\uc81c\uae30\ub2a5<\/li>\n <li>\ub370\uc774\ud130 \uc800\uc7a5\uacf5\uac04\uc758 Overflow\uc640 Underflow<\/li>\n <li>\ub370\uc774\ud130 \uc190\uc0c1\uacfc \ud5c8\uc6a9\ubc94\uc704\ub97c \ubc97\uc5b4\ub09c \uac12<\/li>\n <li>\uc6b4\uc804 \uc911 \uc548\uc804\uae30\ub2a5\uc758 \uc8fc\uae30\uc801 \uc2dc\ud5d8<\/li>\n <li>\ubaa8\ub4e0 \uc6b4\uc804\ubaa8\ub4dc, \uc720\uc9c0\ubcf4\uc218 \uc694\uad6c, \ub0b4\ubd80\u00b7\uc678\ubd80 \uc778\ud130\ud398\uc774\uc2a4<\/li>\n <\/ul>\n <p>\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc815\ud655\ud558\uba70 \ubaa8\ud638\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. \ub610\ud55c \uc0c1\uc704 \uc548\uc804\uc0ac\uc591\uacfc \uad00\ub828 \ubb38\uc11c\uae4c\uc9c0 \ucd94\uc801\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"box practice\">\n <span class=\"box-title\">\uc2dc\ud5d8 \uac00\ub2a5\ud55c \uc694\uad6c\uc0ac\ud56d\uc758 \uc608<\/span>\n <p><strong>\ubaa8\ud638\ud55c \ud45c\ud604:<\/strong> \u201c\uc774\uc0c1\uc555\ub825\uc774 \ubc1c\uc0dd\ud558\uba74 \uc2e0\uc18d\ud788 \uc815\uc9c0\ud55c\ub2e4.\u201d<\/p>\n <p><strong>\uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud45c\ud604:<\/strong> \u201c\uc555\ub825\uc774 \uc124\uc815\uac12 \uc774\uc0c1\uc73c\ub85c \uc9c0\uc815\ub41c \uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ub418\uba74 \ucc28\ub2e8\ucd9c\ub825\uc744 \uc815\ud574\uc9c4 \uc751\ub2f5\uc2dc\uac04 \uc774\ub0b4\uc5d0 \ubc1c\uc0dd\uc2dc\ud0a4\uace0, \uc218\ub3d9 Reset \uc804\uae4c\uc9c0 \uc7ac\uae30\ub3d9\uc744 \uae08\uc9c0\ud55c\ub2e4.\u201d<\/p>\n <\/div>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc801\uc6a9\ud55c\ub2e4. SIL 4\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ucef4\ud4e8\ud130 \uc9c0\uc6d0\ub3c4\uad6c\ub97c \ucd94\uac00\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.2 Requirements Involving the Specification<\/span>\n\n <h3>4.4 \uc544\ud0a4\ud14d\ucc98 \uc124\uacc4\uc640 \ube44\uac04\uc12d\uc131<\/h3>\n <p>\uc124\uacc4\ubc29\ubc95\uc740 \ubaa8\ub4c8\ud654\ub97c \uc9c0\uc6d0\ud558\uace0 \ubcf5\uc7a1\ub3c4\ub97c \uc904\uc5ec\uc57c \ud55c\ub2e4. \uae30\ub2a5, \uc815\ubcf4\ud750\ub984, \ub370\uc774\ud130\uad6c\uc870, \uc2e4\ud589\uc21c\uc11c, \uc2dc\uac04\uc81c\uc57d \ubc0f \uc124\uacc4\uac00\uc815\uc744 \uba85\ud655\ud558\uac8c \ud45c\ud604\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\uc2dc\uc2a4\ud15c \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc2dc\uc2a4\ud15c \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5, \ud1b5\uc2e0\ub9c1\ud06c \uc624\ub958 \ubc0f \ud45c\uc900 \uc751\uc6a9\ubaa8\ub4c8\uc744 \uc9c4\ub2e8\ud574\uc57c \ud55c\ub2e4. \uace0\uc7a5\uc744 \uac80\ucd9c\ud558\uba74 \uace0\uc7a5 \uc694\uc18c\ub97c \uaca9\ub9ac\ud558\uac70\ub098 \uc548\uc804\uc0c1\ud0dc\ub85c \uc804\ud658\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 Watchdog\uc640 \uc9c1\ub82c\ud1b5\uc2e0 \uc624\ub958\uac80\ucd9c \uac19\uc740 \uae30\ubcf8 \uc9c4\ub2e8\uc774 \ud544\uc694\ud558\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc13c\uc11c, I\/O \ud68c\ub85c, \ub17c\ub9ac\ucc98\ub9ac\ubd80, \ucd9c\ub825\uc694\uc18c, \ud1b5\uc2e0 \ubc0f \uba54\ubaa8\ub9ac\uae4c\uc9c0 \uace0\uc7a5\uac80\ucd9c\uc744 \ud655\ub300\ud55c\ub2e4.<\/p>\n <p>\uc548\uc804\uae30\ub2a5\uacfc \ube44\uc548\uc804\uae30\ub2a5\uc774 \uac19\uc740 \ud50c\ub7ab\ud3fc\uc5d0 \uc874\uc7ac\ud558\uba74 \ube44\uac04\uc12d\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \ucc98\ub9ac\uc2dc\uac04, \uae30\ub2a5 \uac04 \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c \uac00\ub2a5\uc131\uc744 \uac80\ud1a0\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.1 Features of the Design and Architecture<\/span>\n\n <h3>4.5 \uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529<\/h3>\n <p>\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529\uc740 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ubaa8\ub4c8\uc744 \ub9cc\ub4e4\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ubc18\uc815\ud615 \uc124\uacc4\ubc29\ubc95, \uc124\uacc4\ud45c\uc900, \ucf54\ub529\ud45c\uc900 \ubc0f \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.<\/p>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uac00\ub2a5\ud55c \ud55c \uc720\uc0ac\ud55c \uc751\uc6a9\uc5d0\uc11c \uc0ac\uc6a9\ub418\uace0 \uc2dc\ud5d8\ub41c Trusted\/Verified Module\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc7ac\uc0ac\uc6a9 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ud604\uc7ac \uc2dc\uc2a4\ud15c \uc801\ud569\uc131\uc774 \uc790\ub3d9 \ubcf4\uc7a5\ub418\uc9c0\ub294 \uc54a\ub294\ub2e4. \uc801\uc6a9\ud658\uacbd\uacfc \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\uc624\ud504\ub77c\uc778 \ub3c4\uad6c\ub85c \ucda9\ubd84\ud788 \ud655\uc778\ud558\uae30 \uc5b4\ub824\uc6b4 \ub3d9\uc801 \uac1d\uccb4\ub294 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubcc0\uc218\uc758 \ubc94\uc704\uc640 \uac00\ub2a5\ud558\uba74 \ud0c0\ub2f9\uc131\uc744 \uac80\uc0ac\ud558\ub294 \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud558\uba70, \uc778\ud130\ub7fd\ud2b8, \ud3ec\uc778\ud130 \ubc0f \uc7ac\uadc0\uc758 \uc0ac\uc6a9\uc744 \uc81c\ud55c\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.2 Detailed Design and Coding<\/span>\n\n <h3>4.6 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc640 \uc9c0\uc6d0\ub3c4\uad6c<\/h3>\n <p>\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub294 \uc644\uc804\ud558\uace0 \ubaa8\ud638\ud558\uc9c0 \uc54a\uac8c \uc815\uc758\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ucf54\ub529\ud45c\uc900\uacfc \uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n <ul>\n <li><strong>SIL 2 \uc774\uc0c1:<\/strong> \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30\ub97c \uae08\uc9c0\ud55c\ub2e4.<\/li>\n <li><strong>SIL 3\uacfc SIL 4:<\/strong> \uc778\ud130\ub7fd\ud2b8\uc640 \ud3ec\uc778\ud130 \uc81c\ud55c\uc744 \uac15\ud654\ud558\uace0, \ub3c4\uad6c \uc624\ub958\uc5d0 \ub300\ube44\ud55c \ub2e4\uc591\uc131 \uae30\ub2a5\uc744 \uac80\ud1a0\ud55c\ub2e4.<\/li>\n <\/ul>\n <p>\uc9c0\uc6d0\ub3c4\uad6c\ub294 \ucda9\ubd84\ud55c \uc0ac\uc6a9\uc2e4\uc801\uc774 \uc788\uace0 \uc54c\ub824\uc9c4 \uc624\ub958\uac00 \ud574\uacb0\ub418\uc5c8\uac70\ub098 \uc548\uc804\uc2dc\uc2a4\ud15c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc778\uc99d\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc774 \uc694\uad6c\ub294 Compiler\ub098 PLC \ub3c4\uad6c\ubfd0 \uc544\ub2c8\ub77c PFD \ub610\ub294 \uace0\uc7a5\ub960 \uacc4\uc0b0\uc6a9 \uc624\ud504\ub77c\uc778 \ud328\ud0a4\uc9c0\uc5d0\ub3c4 \uc801\uc6a9\ub41c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.3 Programming Language and Support Tools<\/span>\n\n <h3>4.7 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc2dc\ud5d8\uacfc \ud1b5\ud569\uc2dc\ud5d8<\/h3>\n <p>\uac01 \ubaa8\ub4c8\uc740 Code Review\uc640 \uc2dc\ud5d8\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc2dc\ud5d8\ubaa9\ud45c\ub294 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc815\ud655\ud788 \uc218\ud589\ud558\ub294\uc9c0 \ud655\uc778\ud558\uace0, \uc81c\ud55c\ub41c \ube44\uc815\uc0c1 \ub370\uc774\ud130\uc5d0\uc11c\ub3c4 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n <p>\ubaa8\ub4c8\uc2dc\ud5d8 \ud6c4\uc5d0\ub294 \uc0ac\uc804\uc5d0 \uc815\uc758\ud55c \uc2dc\ud5d8\uc0ac\ub840\uc640 \uc2dc\ud5d8\ub370\uc774\ud130\ub85c \ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8\uc744 \uc218\ud589\ud55c\ub2e4. \uae30\ub2a5\uc2dc\ud5d8, Black Box \uc2dc\ud5d8 \ubc0f \uc131\ub2a5\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4.<\/p>\n <p>\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\uac04\uc21c\uc73c\ub85c \uae30\ub85d\ud55c\ub2e4. \ubaa8\ub4c8\ubc84\uc804\uacfc \uc2dc\ud5d8\uc808\ucc28\uc11c \ubc84\uc804\uc744 \uba85\uc2dc\ud558\uace0 \uc608\uc0c1\uacb0\uacfc\uc640 \uc2e4\uc81c\uacb0\uacfc\uc758 \ubd88\uc77c\uce58\ub97c \uba85\ud655\ud558\uac8c \ud45c\uc2dc\ud55c\ub2e4. \uc2dc\ud5d8 \uc774\ud6c4 \ubcc0\uacbd\uc774 \ubc1c\uc0dd\ud558\uba74 \uc601\ud5a5\ubd84\uc11d\uc73c\ub85c \uc7ac\uc2dc\ud5d8 \ubc94\uc704\ub97c \uacb0\uc815\ud55c\ub2e4.<\/p>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \uacbd\uacc4\uac12\uc2dc\ud5d8\uacfc \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc911\uc694\ud55c \uc0ac\uac74\uc758 Cause-Consequence \ubd84\uc11d\uc5d0\uc11c \ub3c4\ucd9c\ud55c \uc2dc\ud5d8\uc744 \ucd94\uac00\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.4.1 Software Module Testing and Integration<\/span>\n\n <h3>4.8 \uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8<\/h3>\n <p>\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8\uc740 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud3ec\ud568\ud558\ub294 \ud1b5\ud569 \uc2dc\uc2a4\ud15c\uc744 \uc2dc\ud5d8\ud55c\ub2e4. \uc774 \ub2e8\uacc4\ub294 Factory Acceptance Test\uae4c\uc9c0 \uc774\uc5b4\uc9c8 \uc218 \uc788\ub2e4. \uc2dc\ud5d8 Harness\ub3c4 \uc2dc\ud5d8\uc7a5\ube44\uc758 \uc77c\ubd80\uc774\ubbc0\ub85c \uc124\uacc4\ubb38\uc11c\uc640 \uc801\ud569\uc131 \ud655\uc778\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n <p>\uc6d0\ubb38\uc740 \uc2dc\ud5d8\uae30\ub85d\uc744 \ud2b9\ud788 \uac15\uc870\ud55c\ub2e4. \uc2dc\ud5d8\uae30\ub85d\uc740 \uc2dc\ud5d8\uacb0\uacfc\ub97c \ud655\uc778\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uac00\uc2dc\uc801 \uc99d\uac70\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.4.2 Overall Integration Testing<\/span>\n\n <h3>4.9 Validation<\/h3>\n <p>Validation\uc740 \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \ubaa8\ub4e0 \ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uace0 \uc124\uacc4\uc808\ucc28\uac00 \uc900\uc218\ub418\uc5c8\uc74c\uc744 \ud655\uc778\ud55c\ub2e4. Validation Plan\uc740 \uc804\uccb4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc5b4\ub5bb\uac8c \ud655\uc778\ub418\ub294\uc9c0\ub97c \ubcf4\uc5ec\uc57c \ud55c\ub2e4.<\/p>\n <ul>\n <li>\uc0dd\uba85\uc8fc\uae30 \uc804\uccb4\uc640 \uac10\uc0ac\uc2dc\uc810<\/li>\n <li>\uad6c\uccb4\uc801\uc778 \ud569\uaca9\u00b7\ubd88\ud569\uaca9 \uae30\uc900<\/li>\n <li>\uc120\uc815\ud55c Validation \ubc29\ubc95\uacfc \uc120\uc815 \uadfc\uac70<\/li>\n <li>\ubd80\uc801\ud569 \uc0ac\ud56d\uc758 \ucc98\ub9ac\ubc29\ubc95<\/li>\n <\/ul>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\uac00 \uc81c\uc2dc\ub418\uc5b4\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc815\ud655\uc131, \uc77c\uad00\uc131 \ubc0f \ucf54\ub529\uaddc\uce59 \ub4f1 \ud45c\uc900 \uc900\uc218\ub97c \ub354\uc6b1 \uc5c4\uaca9\ud558\uac8c \ud655\uc778\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.5 Validation<\/span>\n\n <h3>4.10 \uc7ac\uc0ac\uc6a9 \uc694\uc18c\uc758 Safety Manual<\/h3>\n <p>\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uc18c\uc5d0\ub294 Safety Manual\uc774 \ud544\uc694\ud558\ub2e4. \uc8fc\uc694 \ub0b4\uc6a9\uc740 \uae30\ub2a5\uacfc \uc18d\uc131, \uad6c\uc131\uacfc \uc124\uacc4\uac00\uc815, \ud1b5\ud569\uc790\uc5d0\uac8c \uc694\uad6c\ub418\ub294 \ucd5c\uc18c \uc9c0\uc2dd, \uc124\uce58\ubc29\ubc95, Release \uc0ac\uc720, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc6b4\uc601\uccb4\uc81c \uc758\uc874\uc131, Compiler\uc640 \ub3c4\uad6c \ubc84\uc804, \uc694\uc18c\uc758 \ubc84\uc804\uacfc \uac1c\uc815\uc0c1\ud0dc, \ubcc0\uacbd\uc694\uccad \ubc29\ubc95 \ubc0f \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d\uc774\ub2e4.<\/p>\n <div class=\"box summary\">Safety Manual\uc740 \ub2e8\uc21c\ud55c \uc778\uc99d\uc11c\uac00 \uc544\ub2c8\ub2e4. \uc7ac\uc0ac\uc6a9 \uc694\uc18c\ub97c \uc5b4\ub5a4 \uc870\uac74\uacfc \uc81c\ud55c \uc548\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\ub824\uc8fc\ub294 \ud1b5\ud569 \uc9c0\uce68\uc774\ub2e4.<\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.6 Safety Manuals<\/span>\n\n <h3>4.11 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubcc0\uacbd<\/h3>\n <p>\ubaa8\ub4e0 \ubcc0\uacbd\uc5d0\ub294 \ubcc0\uacbd\ub85c\uadf8, \uac1c\uc815\uad00\ub9ac, \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5\ubd84\uc11d \ubc0f \uc7ac\uc2dc\ud5d8\uc774 \ud544\uc694\ud558\ub2e4. \ubcc0\uacbd\uc808\ucc28\ub294 \ucd5c\ucd08 \uc124\uacc4 \ub54c \uc801\uc6a9\ud55c \ubc29\ubc95\uacfc \ucd5c\uc18c\ud55c \ub3d9\ub4f1\ud574\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\ubaa9\ud45c SIL<\/th><th>\ubcc0\uacbd \ud6c4 \uc694\uad6c\ub418\ub294 \ud655\uc778\ubc94\uc704<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>SIL 1<\/td><td>\ubcc0\uacbd\ub41c \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>SIL 2<\/td><td>\ubcc0\uacbd\uc73c\ub85c \uc601\ud5a5\uc744 \ubc1b\ub294 \ubaa8\ub4e0 \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>SIL 3 \uc774\uc0c1<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c\uc744 \uc7acValidation\ud55c\ub2e4.<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <p>\uc18c\ud504\ud2b8\uc6e8\uc5b4\uac00 \ud3ec\ud568\ub41c SIL 3 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \uc804\uccb4 \uc7acValidation\uc774 \uc0c1\ub2f9\ud55c \ube44\uc6a9\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \ucd08\uae30\ubd80\ud130 \ubcc0\uacbd\uc601\ud5a5\uc744 \uc81c\ud55c\ud560 \uc218 \uc788\ub3c4\ub85d \ubaa8\ub4c8\ud654\uc640 \ucd94\uc801\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.7 Modifications<\/span>\n\n <h3>4.12 \ub300\uccb4\uae30\ubc95\uacfc \uc808\ucc28<\/h3>\n <p>\ud45c\uc900\uc5d0 \uc9c1\uc811 \ub098\uc5f4\ub418\uc9c0 \uc54a\uc740 \ub300\uccb4\uae30\ubc95\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc644\uc804\uc131\uacfc \uc815\ud655\uc131, \uc0ac\uc591 \uc624\ub958\uc640 \ubaa8\ud638\uc131\uc758 \ubd80\uc7ac, \uc774\ud574 \uc6a9\uc774\uc131, \ube44\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac04\uc12d \ubc29\uc9c0 \ubc0f Verification\uacfc Validation \uae30\ubc18 \uc81c\uacf5 \uc5ec\ubd80\ub97c \ud3c9\uac00\ud574\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uc801\uc6a9 \uc218\uc900<\/th><th>\ub4f1\uae09<\/th><th>\uc758\ubbf8<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>SIL 1\u20132<\/td><td>R1<\/td><td>\uc81c\ud55c\ub41c \uac1d\uad00\uc801 \ud569\uaca9\uae30\uc900. \uc608: Black Box Test, Field Trial<\/td><\/tr>\n <tr><td>SIL 3<\/td><td>R2<\/td><td>\ub192\uc740 \uc2e0\ub8b0\ub3c4\ub97c \uac16\ub294 \uac1d\uad00\uc801 \uae30\uc900. \uc608: \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\ub97c \uac16\ub294 \uc2dc\ud5d8<\/td><\/tr>\n <tr><td>SIL 4<\/td><td>R3<\/td><td>\uac1d\uad00\uc801\uc774\uace0 \uccb4\uacc4\uc801\uc778 \ub17c\uc99d. \uc608: Formal Proof<\/td><\/tr>\n <tr><td>\ud574\ub2f9 \uc5c6\uc74c<\/td><td>\u2014<\/td><td>\uc81c\uc548 \uae30\ubc95\uc5d0 \uad00\ub828\ub418\uc9c0 \uc54a\ub294 \uc18d\uc131<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.8 Alternative Techniques and Procedures<\/span>\n\n <h3>4.13 Data-driven System\uc758 \ub124 \uac00\uc9c0 \uc720\ud615<\/h3>\n <p>Data-driven System\uc740 \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc5d0 \uc785\ub825\ub418\ub294 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uc751\uc6a9\uae30\ub2a5\uc744 \uad6c\uc131\ud55c\ub2e4. \ubcf5\uc7a1\ub3c4\uc640 \uc0ac\uc6a9\uc790 \uc790\uc720\ub3c4\uc5d0 \ub530\ub77c \uc0dd\uba85\uc8fc\uae30\ub97c Tailoring\ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uc720\ud615<\/th><th>\ub300\ud45c \uc608<\/th><th>\ud575\uc2ec \ud655\uc778\uc0ac\ud56d<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>Limited variability configuration \/ Limited application configurability<\/td><td>Smart Sensor, Smart Actuator\uc758 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815<\/td><td>\uc785\ub825 \ud30c\ub77c\ubbf8\ud130 \uba85\uc138, \uc815\ud655\ud55c \uc801\uc6a9, \ubaa8\ub4e0 \uc870\ud569\uc758 Validation, \ud2b9\uc218 \uc6b4\uc804\ubaa8\ub4dc, \uc778\uc801\uc694\uc778, Interlock \uc720\uc9c0, \uc784\uc758 \uc7ac\uc124\uc815 \ubc29\uc9c0<\/td><\/tr>\n <tr><td>Limited variability configuration \/ Full application configurability<\/td><td>\ub300\uaddc\ubaa8 \uc815\uc801 \ub370\uc774\ud130\ub85c \uc2dc\uc2a4\ud15c\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0<\/td><td>\ub370\uc774\ud130 \uc0dd\uc131 \uc790\ub3d9\ud654\ub3c4\uad6c, \ub370\uc774\ud130 \uc77c\uad00\uc131, \uaddc\uce59 \uc900\uc218, \ub370\uc774\ud130 \uc900\ube44\uc2dc\uc2a4\ud15c \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc720\ud6a8\uc131<\/td><\/tr>\n <tr><td>Limited variability programming \/ Limited application configurability<\/td><td>Function Block, Ladder Logic, Spreadsheet \uae30\ubc18 \uc2dc\uc2a4\ud15c<\/td><td>\uc751\uc6a9\uc694\uad6c\uc0ac\ud56d, \ud5c8\uc6a9 \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569, \ubd80\ubd84\uc9d1\ud569 \uacb0\ud569 \uc124\uacc4\ubc29\ubc95, \uac00\ub2a5\ud55c \uc2dc\uc2a4\ud15c \uc0c1\ud0dc\uc870\ud569\uc744 \ub2e4\ub8e8\ub294 Verification \ucee4\ubc84\ub9ac\uc9c0<\/td><\/tr>\n <tr><td>Limited variability programming \/ Full application configurability<\/td><td>\uadf8\ub798\ud53d \uc2dc\uc2a4\ud15c, SCADA \uae30\ubc18 Batch Control<\/td><td>\uc751\uc6a9 \uc544\ud0a4\ud14d\ucc98, Template \uc81c\uacf5, \uac1c\ubcc4 Template Verification, \uc644\uc131\ub41c \uc751\uc6a9\uc758 Verification\uacfc Validation<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.9 Data-Driven Systems<\/span>\n\n <h3>4.14 \uc815\uc801\ubd84\uc11d<\/h3>\n <p>\uc815\uc801\ubd84\uc11d\uc740 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc18c\uc2a4\ucf54\ub4dc\ub97c \ub300\uc218\uc801\uc73c\ub85c \ubd84\uc11d\ud55c\ub2e4. \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc54c\uace0\ub9ac\uc998\uc758 \uc5f0\uc0b0\uad00\uacc4\ub97c \uac80\ud1a0\ud55c\ub2e4. Part 3\uc758 Table B8\uc740 Data Flow\uc640 Control Flow\ub97c SIL 3\uacfc SIL 4\uc5d0\uc11c Highly Recommended\ub85c \uc81c\uc2dc\ud55c\ub2e4.<\/p>\n <ul>\n <li>\uc5b8\uc5b4\ubcc4 Translator\uc640 \ubd84\uc11d\ub3c4\uad6c\uac00 \ud544\uc694\ud558\ub2e4.<\/li>\n <li>\uc8fc\ub85c \uc808\ucc28\ud615 \uace0\uae09\uc5b8\uc5b4\uc5d0 \uc801\uc6a9\ub41c\ub2e4.<\/li>\n <li>PLC \ucf54\ub4dc\ub294 \uc790\ub3d9\ubd84\uc11d \ub300\uc2e0 \uc218\ub3d9 Walkthrough\uc5d0 \uc758\uc874\ud560 \uc218 \uc788\ub2e4.<\/li>\n <li>\ub17c\ub9ac\uae30\ub2a5\uc740 \ubd84\uc11d\ud558\uc9c0\ub9cc \ud0c0\uc774\ubc0d \ud2b9\uc131\uc740 \uc9c1\uc811 \ub2e4\ub8e8\uc9c0 \ubabb\ud55c\ub2e4.<\/li>\n <li>\uc815\uc801\ubd84\uc11d\ub9cc\uc73c\ub85c \ucf54\ub4dc\ud488\uc9c8 \uc804\uccb4\ub97c \ubcf4\uc99d\ud558\uc9c0 \ubabb\ud55c\ub2e4.<\/li>\n <\/ul>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.1 Static Analysis<\/span>\n\n <h3>4.15 \ud615\uc2dd\uae30\ubc95<\/h3>\n <p>\ud615\uc2dd\uae30\ubc95\uc740 \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \uc815\uc758\ud55c\ub2e4. \uc7a5\uc810\uc740 \uc0dd\uba85\uc8fc\uae30 \ucd08\uae30\uc5d0 \uc7a0\uc7ac\uc624\ub958\ub97c \uc608\ubc29\ud558\uac70\ub098 \ubc1c\uacac\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4.<\/p>\n <p>\uadf8\ub7ec\ub098 \ud6c8\ub828\ub41c \uc778\ub825\uacfc \uc801\uc808\ud55c \ub3c4\uad6c\uac00 \ud544\uc694\ud558\uba70, \ubaa8\ub4e0 \uc751\uc6a9\uc5d0 \ubcf4\ud3b8\uc801\uc73c\ub85c \uc801\ud569\ud55c \ud558\ub098\uc758 \ubc29\ubc95\uc740 \uc5c6\ub2e4. \uc6d0\ubb38\uc740 Formal Method\uc640 Formal Proof\ub97c SIL 4\uc5d0\uc11c Highly Recommended, SIL 2\uc640 SIL 3\uc5d0\uc11c Recommended\ub85c \uc124\uba85\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.2 Use of Formal Methods<\/span>\n\n <h3>4.16 PLC \uc5b8\uc5b4<\/h3>\n <p>\ucd08\uae30\uc758 Ladder Logic\uc740 \ubd84\uae30\ubb38\uc774 \uac70\uc758 \uc5c6\ub294 Limited Variability Language\uc600\uc73c\ubbc0\ub85c \ubaa8\ub4e0 SIL\uc5d0\uc11c \ube44\uad50\uc801 \uc27d\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\uc5c8\ub2e4. \ud604\ub300 PLC\ub294 \uba85\ub839\uc9d1\ud569\uc774 \ud655\ub300\ub418\uace0 \ubd84\uae30\uc640 \ubcf5\uc7a1\ud55c \uae30\ub2a5\uc774 \ucd94\uac00\ub418\uc5c8\ub2e4. \ub530\ub77c\uc11c \ub192\uc740 SIL\uc5d0\uc11c\ub294 \uba85\ub839\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc81c\ud55c\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>IEC 61131-3 \uc5b8\uc5b4\ub97c \uc0ac\uc6a9\ud560 \ub54c\ub3c4 \uc548\uc804\uad00\ub828 \uc751\uc6a9\uc5d0 \uc801\ud569\ud55c Restricted Subset\uc744 \uc815\uc758\ud574\uc57c \ud55c\ub2e4. Cause and Effect Diagram\uc73c\ub85c Shutdown System\uc744 \uc9c1\uc811 \uad6c\uc131\ud558\ub294 \uc804\uc6a9\uc5b8\uc5b4\ub294 \uc548\uc804\uc751\uc6a9\uc744 \uc704\ud574 \uc81c\ud55c\ub41c \ubd80\ubd84\uc9d1\ud569\uc758 \uc0ac\ub840\uc774\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.3 PLCs and their Languages<\/span>\n\n <h3>4.17 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc7ac\uc0ac\uc6a9<\/h3>\n <p>\uc7ac\uc0ac\uc6a9\uc740 \uc774\ubbf8 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub41c \uc0ac\uc591, \uc54c\uace0\ub9ac\uc998 \ub610\ub294 \ucf54\ub4dc\ub97c \ud65c\uc6a9\ud55c\ub2e4. \uae30\uc874 \ucf54\ub4dc\ub098 \uc0ac\uc591\uc5d0 \uc0ac\uc6a9\uc99d\uac70\uac00 \uc788\uace0, \ud3c9\uade0\ubcf4\ub2e4 \ub9ce\uc740 \uc2dc\ud5d8\uc744 \ubc1b\uc558\uc73c\uba70, \uc2e4\uc81c \uc751\uc6a9\ud658\uacbd\uc5d0\uc11c \uc2dc\ud5d8\ub418\uc5c8\uc744 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\ub2e4.<\/p>\n <p>\ubc18\ub300\ub85c \uc0c8\ub85c\uc6b4 \ud658\uacbd\uc5d0\uc11c \uc7a0\uc7ac\uacb0\ud568\uc774 \ub098\ud0c0\ub0a0 \uc218 \uc788\uace0, \ubd88\ud544\uc694\ud55c \uae30\ub2a5 \ub54c\ubb38\uc5d0 \uc218\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc73c\uba70, \ub0b4\ubd80\ub3d9\uc791\uc744 \ucda9\ubd84\ud788 \uc774\ud574\ud558\uc9c0 \ubabb\ud560 \uc218\ub3c4 \uc788\ub2e4. \ub530\ub77c\uc11c \uc7ac\uc0ac\uc6a9\uc758 \uc774\uc810\uc740 \uc801\uc808\ud55c \uc808\ucc28\uc640 \ud1b5\uc81c\uac00 \uc788\uc744 \ub54c\ub9cc \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.4 Software Reuse<\/span>\n\n <h3>4.18 Software Metrics<\/h3>\n <p>Software Metrics\ub294 \ucf54\ub4dc\uc758 \ud06c\uae30, \ubcf5\uc7a1\ub3c4 \ubc0f \uad6c\uc870\ub97c \uce21\uc815\ud55c\ub2e4. \ubd84\uae30\ubb38 \uc218\uac00 \ub300\ud45c\uc801\uc774\uba70 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \ud1b5\uacc4\ub3c4 Metrics\ub77c\ub294 \uc6a9\uc5b4\ub85c \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n <p>\uc6d0\ubb38\uc740 Metrics\uc758 \uac00\uce58\uc5d0 \ub300\ud574 \uc0c1\ubc18\ub41c \uacac\ud574\uac00 \uc788\ub2e4\uace0 \uc124\uba85\ud55c\ub2e4. \uc7a5\uae30\uac04 \ud2b9\uc815 \uc0b0\uc5c5\uc774\ub098 \uc81c\ud488\uad70\uc5d0\uc11c \uc77c\uad00\ub418\uac8c \uc218\uc9d1\ud558\uba74 \ud604\uc7a5\uace0\uc7a5 \uc131\ub2a5\uacfc\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \uc5f0\uad6c\ud560 \uc218 \uc788\uc9c0\ub9cc, Metrics\ub9cc\uc73c\ub85c \uc548\uc804\ubb34\uacb0\uc131\uc744 \uc9c1\uc811 \uc785\uc99d\ud558\uae30\uc5d0\ub294 \uc81c\ud55c\uc774 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.5 Software Metrics<\/span>\n\n <h3>4.19 \uc801\ud569\uc131 \uc785\uc99d \ud15c\ud50c\ub9bf<\/h3>\n <p>Chapter 4\uc758 \ucd5c\uc885\ubaa9\ud45c\ub294 IEC 61508 Part 3\uc758 \uc694\uad6c\uc0ac\ud56d\uc744 \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8 \uc99d\uac70\uc640 \uc5f0\uacb0\ud558\ub294 \uac83\uc774\ub2e4. Evidence\ub780\uc5d0\ub294 \ub2e4\uc74c \ubb38\uc11c\ub97c \uc5f0\uacb0\ud560 \uc218 \uc788\ub2e4.<\/p>\n <ul>\n <li>Software Development Plan<\/li>\n <li>Software Safety Requirements Specification<\/li>\n <li>\uc544\ud0a4\ud14d\ucc98 \ubc0f \ubaa8\ub4c8 \uc124\uacc4\uc11c<\/li>\n <li>\ucf54\ub529\ud45c\uc900\uacfc Code Review \uae30\ub85d<\/li>\n <li>\ud615\uc0c1\ud56d\ubaa9 \ubaa9\ub85d, Baseline \ubc0f \ubcc0\uacbd\ub85c\uadf8<\/li>\n <li>\ubaa8\ub4c8\uc2dc\ud5d8\u00b7\ud1b5\ud569\uc2dc\ud5d8\u00b7Acceptance Test \uacb0\uacfc<\/li>\n <li>Validation Plan\uacfc Validation Report<\/li>\n <li>Safety Manual<\/li>\n <li>\uc601\ud5a5\ubd84\uc11d\uacfc \uc7ac\uc2dc\ud5d8 \uae30\ub85d<\/li>\n <\/ul>\n <p>\u201cNot Applicable\u201d\uc740 \uc815\ub2f9\ud55c \uadfc\uac70\uac00 \uc788\uc744 \ub54c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uc0c1\ub300\uc801\uc73c\ub85c \ub2e8\uc21c\ud55c \uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc694\uc57d \ud15c\ud50c\ub9bf\uc73c\ub85c \ud3c9\uac00\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc0c8\ub85c\uc6b4 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud568\uaed8 \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0 \ud45c\uc900\uc758 \uc0c1\uc138\ud45c\ub97c \uc9c1\uc811 \uc801\uc6a9\ud560 \ud544\uc694\uac00 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.11 Conformance Demonstration Template<\/span>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"configuration\">\n <h2>5. \ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac<\/h2>\n <h3>5.1 \uc815\uc758<\/h3>\n <div class=\"definition\">\ud615\uc0c1\uad00\ub9ac\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \uad00\ub828 \ubb38\uc11c\u00b7\ub370\uc774\ud130\u00b7\ub3c4\uad6c\ub97c \ud615\uc0c1\ud56d\ubaa9\uc73c\ub85c \uc2dd\ubcc4\ud558\uace0, \uc2b9\uc778\ub41c \ubc84\uc804 \uc870\ud569\uc744 \uae30\uc900\uc120\uc73c\ub85c \uc124\uc815\ud558\uba70, \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\uc5ec \uc124\uacc4\ud55c \uc2dc\uc2a4\ud15c, \uc2dc\ud5d8\ud55c \uc2dc\uc2a4\ud15c \ubc0f \uc124\uce58\ub41c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc77c\uc131\uc744 \ubcf4\uc7a5\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/div>\n\n <h3>5.2 \ud615\uc0c1\ud56d\ubaa9\uc758 \ubc94\uc704<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uad6c\ubd84<\/th><th>\ud615\uc0c1\ud56d\ubaa9 \uc608\uc2dc<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\uc694\uad6c\uc0ac\ud56d<\/td><td>Software Safety Requirements Specification, \uc778\ud130\ud398\uc774\uc2a4 \uc694\uad6c\uc0ac\ud56d<\/td><\/tr>\n <tr><td>\uc124\uacc4<\/td><td>\uc544\ud0a4\ud14d\ucc98, Cause and Effect, State Diagram, \ubaa8\ub4c8 \uc124\uacc4\uc11c<\/td><\/tr>\n <tr><td>\uad6c\ud604<\/td><td>PLC Project, \uc18c\uc2a4\ucf54\ub4dc, Function Block, Library, \uc2e4\ud589\ud30c\uc77c<\/td><\/tr>\n <tr><td>\uc124\uc815<\/td><td>\ud30c\ub77c\ubbf8\ud130, Trip \uac12, \ud1b5\uc2e0\uc124\uc815, I\/O Mapping<\/td><\/tr>\n <tr><td>\ub3c4\uad6c\u00b7\ud658\uacbd<\/td><td>Compiler, PLC Engineering Tool, \uc6b4\uc601\uccb4\uc81c, Firmware<\/td><\/tr>\n <tr><td>\uc2dc\ud5d8<\/td><td>\uc2dc\ud5d8\uc808\ucc28, \uc2dc\ud5d8\ub370\uc774\ud130, Test Harness, \uc2dc\ud5d8\uacb0\uacfc, \uacb0\ud568\ubaa9\ub85d<\/td><\/tr>\n <tr><td>\uc6b4\uc601\uc790\ub8cc<\/td><td>Safety Manual, Release Note, \ubcc0\uacbd\ub85c\uadf8, \ud3d0\uae30\uc0c1\ud0dc<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>5.3 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28<\/h3>\n <ol>\n <li><strong>\uc2dd\ubcc4:<\/strong> \ud615\uc0c1\ud56d\ubaa9\ub9c8\ub2e4 \uace0\uc720 ID, \uba85\uce6d, \ubc84\uc804, \uc0c1\ud0dc \ubc0f \ucc45\uc784\uc790\ub97c \ubd80\uc5ec\ud55c\ub2e4.<\/li>\n <li><strong>\uae30\uc900\uc120:<\/strong> \uac80\ud1a0\uc640 \uc2b9\uc778 \ud6c4 \uc694\uad6c\uc0ac\ud56d\u00b7\uc124\uacc4\u00b7\uc2dc\ud5d8 \ub610\ub294 Release \uae30\uc900\uc120\uc744 \uc124\uc815\ud55c\ub2e4.<\/li>\n <li><strong>\ucd94\uc801:<\/strong> \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\uacb0\uacfc\ub97c \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ud55c\ub2e4.<\/li>\n <li><strong>\ubcc0\uacbd\ud1b5\uc81c:<\/strong> \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5, \uc2b9\uc778, \uad6c\ud604, \uc7ac\uc2dc\ud5d8 \ubc0f \uc0c8\ub85c\uc6b4 \ubc84\uc804\uc744 \uae30\ub85d\ud55c\ub2e4.<\/li>\n <li><strong>\uc0c1\ud0dc\uae30\ub85d:<\/strong> \ud604\uc7ac \uc2b9\uc778\uc0c1\ud0dc, \uc2dc\ud5d8\uc0c1\ud0dc, Release \uc0c1\ud0dc \ubc0f \ud3d0\uae30\uc0c1\ud0dc\ub97c \uc720\uc9c0\ud55c\ub2e4.<\/li>\n <li><strong>\uac10\uc0ac:<\/strong> \ubb38\uc11c, \uc800\uc7a5\uc18c, \ube4c\ub4dc\uacb0\uacfc \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \uc2b9\uc778\uae30\uc900\uc120\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.<\/li>\n <\/ol>\n\n <h3>5.4 \ubc84\uc804\uad00\ub9ac\uc640\uc758 \ucc28\uc774<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uac1c\ub150<\/th><th>\uc758\ubbf8<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\ubc84\uc804\uad00\ub9ac<\/td><td>\ud30c\uc77c\uc758 \uc218\uc815\uc774\ub825, \ucc28\uc774 \ubc0f \ubc84\uc804\uc744 \uc800\uc7a5\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>\ubcc0\uacbd\uad00\ub9ac<\/td><td>\ubcc0\uacbd\uc758 \ud544\uc694\uc131, \uc601\ud5a5, \uc2b9\uc778 \ubc0f \uc7ac\uc2dc\ud5d8\uc744 \ud1b5\uc81c\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>Release \uad00\ub9ac<\/td><td>\uc2b9\uc778\ub41c \ud615\uc0c1\uc870\ud569\uc744 \uc124\uce58\u00b7\uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc84\uc804\uc73c\ub85c \uacf5\uc2dd \ubc1c\ud589\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>\ud615\uc0c1\uad00\ub9ac<\/td><td>\uc704 \ud65c\ub3d9\uc744 \ud1b5\ud569\ud558\uc5ec \uc2dc\uc2a4\ud15c \uc804\uccb4 \uad6c\uc131\uacfc \uc99d\uac70\uc758 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud55c\ub2e4.<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <p>Git\uacfc \uac19\uc740 \ub3c4\uad6c\ub294 \ud615\uc0c1\uad00\ub9ac\ub97c \uc9c0\uc6d0\ud558\uc9c0\ub9cc, Git\ub9cc\uc73c\ub85c \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \uc548\uc804\uc601\ud5a5\ubd84\uc11d, \ubcc0\uacbd\uc2b9\uc778, \ub3c4\uad6c\ubc84\uc804, \ud604\uc7a5 \uc124\uce58\ubcf8 \ubc0f Release \uc2b9\uc778\uc744 \uc790\ub3d9 \ubcf4\uc99d\ud558\uc9c0\ub294 \uc54a\ub294\ub2e4.<\/p>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"summary\">\n <h2>6. \ucd5c\uc885 \uc694\uc57d<\/h2>\n <ol class=\"lead\">\n <li>Chapter 4\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uad00\ub9ac\ud55c\ub2e4.<\/li>\n <li>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uacc4\uc0b0\ud558\ub294 \ub300\uc2e0 SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d \uac15\ub3c4\ub97c \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>V-Model\uc740 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a8\ub2e4.<\/li>\n <li>\uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud558\uba70 \uc591\ubc29\ud5a5 \ucd94\uc801\uc774 \uac00\ub2a5\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\uc544\ud0a4\ud14d\ucc98\ub294 \ubaa8\ub4c8\ud654, \uc9c4\ub2e8 \ubc0f \ube44\uac04\uc12d\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\ucf54\ub529\uc740 \uc81c\ud55c\ub41c \uc5b8\uc5b4, \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>\ub3c4\uad6c\ub3c4 \uc0ac\uc6a9\uc2e4\uc801, \uc624\ub958\uad00\ub9ac \ub610\ub294 \uc778\uc99d\uc744 \ud1b5\ud574 \uc801\ud569\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 \ubc0f Validation\uc758 \uacb0\uacfc\uc5d0\ub294 \ubc84\uc804\uacfc \ubd88\uc77c\uce58 \ucc98\ub9ac\uae30\ub85d\uc774 \ud544\uc694\ud558\ub2e4.<\/li>\n <li>\ubcc0\uacbd\uc740 \uc601\ud5a5\ubd84\uc11d\uacfc SIL\ubcc4 \uc7ac\uac80\uc99d \ubc94\uc704\ub97c \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>\ucd5c\uc885\uc801\uc73c\ub85c \ud45c\uc900 \uc694\uad6c\uc0ac\ud56d\uacfc \ud504\ub85c\uc81d\ud2b8 Evidence\ub97c \uc5f0\uacb0\ud558\uc5ec \uc801\ud569\uc131\uc744 \uc785\uc99d\ud55c\ub2e4.<\/li>\n <\/ol>\n <div class=\"definition\">Chapter 4\ub294 \uc548\uc804\uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc624\ub958\uac00 \uc5c6\ub2e4\uace0 \uc120\uc5b8\ud558\ub294 \ubc29\ubc95\uc774 \uc544\ub2c8\ub77c, \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \ubcc0\uacbd\uae4c\uc9c0 \uccb4\uacc4\uc801\uc778 \uc0dd\uba85\uc8fc\uae30\ub97c \uc801\uc6a9\ud558\uc5ec \uc624\ub958\ub97c \uc608\ubc29\u00b7\ubc1c\uacac\u00b7\ud1b5\uc81c\ud558\uace0, \uadf8 \uc218\ud589\uc99d\uac70\ub85c \ubaa9\ud45c SIL \uc801\ud569\uc131\uc744 \uc785\uc99d\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud55c\ub2e4.<\/div>\n <\/section>\n\n <section id=\"references\">\n <h2>7. \ucc38\uace0\ubb38\ud5cc<\/h2>\n <p>David J. Smith and Kenneth G. L. Simpson, <em>The Safety Critical Systems Handbook: A Straightforward Guide to Functional Safety, IEC 61508, IEC 61511 and Related Guidance<\/em>, 4th ed., Butterworth-Heinemann, 2016, Chapter 4, pp. 79\u2013100.<\/p>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n <\/main>\n\n <footer>\n <strong>\ubb38\uc11c \ud615\uc2dd:<\/strong> \ub2e8\uc77c \ud504\ub808\uc784 \u00b7 \uc804\uccb4 \ud3ed \u00b7 \ub3c5\ub9bd \uc2e4\ud589\ud615 HTML \u00b7 \uc678\ubd80 \ub77c\uc774\ube0c\ub7ec\ub9ac \ubd88\ud544\uc694\n <\/footer>\n <\/article>\n<\/body>\n<\/html>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"TheSafetyCriticlaSystem-7\uc758 \uc0bd\uc785.\"><\/object><a id=\"wp-block-file--media-73096dc2-b1ea-41ff-b688-c9a5c1b33e9b\" href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\">TheSafetyCriticlaSystem-7<\/a><a href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-73096dc2-b1ea-41ff-b688-c9a5c1b33e9b\">\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>\\documentclass[11pt,a4paper]{article}\n\n\\usepackage{kotex}\n\\usepackage[margin=20mm]{geometry}\n\\usepackage{setspace}\n\\usepackage{booktabs}\n\\usepackage{tabularx}\n\\usepackage{array}\n\\usepackage{enumitem}\n\\usepackage{xcolor}\n\\usepackage{amsmath}\n\\usepackage{tikz}\n\\usepackage[most]{tcolorbox}\n\\usepackage{fancyhdr}\n\\usepackage{longtable}\n\\usepackage[hidelinks]{hyperref}\n\\usetikzlibrary{arrows.meta,positioning,shapes.geometric,fit,calc}\n\n\\setstretch{1.17}\n\\setlist[itemize]{leftmargin=1.7em,itemsep=2pt,topsep=3pt}\n\\setlist[enumerate]{leftmargin=2.0em,itemsep=4pt,topsep=4pt}\n\\renewcommand{\\arraystretch}{1.32}\n\\setlength{\\parindent}{0pt}\n\\setlength{\\parskip}{0.42em}\n\\sloppy\n\n\\definecolor{navy}{RGB}{28,56,92}\n\\definecolor{navy2}{RGB}{45,83,126}\n\\definecolor{bluegray}{RGB}{230,237,245}\n\\definecolor{lightgray}{RGB}{246,247,249}\n\\definecolor{darkgray}{RGB}{65,70,78}\n\\definecolor{accent}{RGB}{169,94,22}\n\\definecolor{paleorange}{RGB}{252,242,229}\n\\definecolor{palegreen}{RGB}{235,246,239}\n\n\\pagestyle{fancy}\n\\fancyhf{}\n\\lhead{IEC 61508 Part 3}\n\\rhead{Chapter 4 \ud559\uc2b5 \ub178\ud2b8}\n\\cfoot{\\thepage}\n\\renewcommand{\\headrulewidth}{0.4pt}\n\\setlength{\\headheight}{14pt}\n\n\\newtcolorbox{keybox}[1]{\n colback=bluegray,\n colframe=navy,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newtcolorbox{summarybox}{\n colback=lightgray,\n colframe=darkgray,\n boxrule=0.6pt,\n arc=1.5mm\n}\n\n\\newtcolorbox{warningbox}[1]{\n colback=paleorange,\n colframe=accent,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newtcolorbox{practicebox}[1]{\n colback=palegreen,\n colframe=navy2,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newcommand{\\eng}[1]{\\textit{#1}}\n\\newcommand{\\term}[1]{\\textbf{#1}}\n\\newcommand{\\sourcepara}[1]{\\par\\smallskip\\textcolor{darkgray}{\\footnotesize\\textit{\uc6d0\ubb38 \ub300\uc751: #1}}}\n\n\\title{\\textbf{IEC 61508 Part 3 \uae30\ubc18\\\\\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c \uc815\ub9ac}}\n\\author{\\eng{The Safety Critical Systems Handbook}, Chapter 4 \ud559\uc2b5 \ub178\ud2b8}\n\\date{}\n\n\\begin{document}\n\n\\maketitle\n\n\\begin{summarybox}\nChapter 4\ub294 IEC 61508 Part 3\uc758 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\uc744 \uc124\uba85\ud55c\ub2e4. \ud575\uc2ec \ub300\uc0c1\uc740 \ub79c\ub364 \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5\uc774 \uc544\ub2c8\ub77c \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8 \ubc0f \ubcc0\uacbd \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \\term{\uccb4\uacc4\uc801 \uace0\uc7a5}\uc774\ub2e4. \ub530\ub77c\uc11c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc740 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uc608\uce21\ud558\uc5ec \uc785\uc99d\ud558\uc9c0 \uc54a\ub294\ub2e4. \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30, \uc124\uacc4\uae30\ubc95, \uac80\ud1a0, \uc2dc\ud5d8, \ud615\uc0c1\uad00\ub9ac \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uc608\ubc29\ud558\uace0 \ubc1c\uacac\ud55c\ub2e4.\n\\end{summarybox}\n\n\\begin{keybox}{\uc774 \ubb38\uc11c\uc758 \uad6c\uc131}\n\\begin{enumerate}\n \\item \ud575\uc2ec \ud0a4\uc6cc\ub4dc\ub97c \uc815\uc758\ud55c\ub2e4.\n \\item \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4\ub97c V-Model\uacfc \uc0dd\uba85\uc8fc\uae30 \uad00\uc810\uc5d0\uc11c \uc815\ub9ac\ud55c\ub2e4.\n \\item \uc6d0\ubb38\uc758 \ud750\ub984\uc5d0 \ub530\ub77c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \uc124\uba85\ud55c\ub2e4.\n \\item \ud615\uc0c1\uad00\ub9ac\ub97c \ubcc4\ub3c4\ub85c \uc815\ub9ac\ud558\uc5ec \uae30\uc900\uc120, \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, Release\uc758 \uad00\uacc4\ub97c \uba85\ud655\ud788 \ud55c\ub2e4.\n\\end{enumerate}\n\\end{keybox}\n\n\\tableofcontents\n\\newpage\n\n% =========================================================\n\\section{Chapter 4\uc758 \ubcf8\uc9c8}\n% =========================================================\n\n\\subsection{\uc801\uc6a9 \ubc94\uc704}\n\nIEC 61508 Part 3\uc740 \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac1c\ubc1c\uc744 \ub2e4\ub8ec\ub2e4. \uc801\uc6a9 \ub300\uc0c1\uc740 \ud06c\uac8c \ub2e4\uc74c \ub450 \uacbd\uc6b0\ub85c \uad6c\ubd84\ub41c\ub2e4.\n\n\\begin{itemize}\n \\item \\term{Embedded software design}: \ud558\ub4dc\uc6e8\uc5b4\uc640 \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub41c \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0\n \\item \\term{Application software}: \uac80\uc99d\ub41c PLC \ud50c\ub7ab\ud3fc \ub4f1\uc5d0 \uc751\uc6a9 \ub85c\uc9c1\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0\n\\end{itemize}\n\n\ub450 \uacbd\uc6b0 \ubaa8\ub450 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc0dd\uba85\uc8fc\uae30\uac00 \ud544\uc694\ud558\ub2e4. \ub2e4\ub9cc \uc0dd\uba85\uc8fc\uae30\uc758 \ub2e8\uacc4 \uc218\uc640 \uac80\uc99d \uac15\ub3c4\ub294 \ubaa9\ud45c SIL\uacfc \uc2dc\uc2a4\ud15c \ubcf5\uc7a1\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4.\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc758 \uc758\ubbf8}\n\n\ud558\ub4dc\uc6e8\uc5b4 \uc2e0\ub8b0\ub3c4 \uc608\uce21\uc740 \uc608\uc0c1 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc815\uc131\uc801 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\uace0 \ud574\uc11c \uccb4\uacc4\uc801 \uace0\uc7a5\uc758 \uace0\uc7a5\ub960\uc774 \uacc4\uc0b0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. Chapter 4\uac00 \uc8fc\uc7a5\ud560 \uc218 \uc788\ub294 \ubc94\uc704\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{warningbox}{\uc815\ub7c9\uc801 \uc624\ud574 \ubc29\uc9c0}\n\ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\ub294 \uc0ac\uc2e4\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc218\uce58\ub85c \uc9c1\uc811 \uc785\uc99d\ud55c \uac83\uc774 \uc544\ub2c8\ub2e4. \ud604\uc7ac\uc758 \uae30\uc220\uc218\uc900\uc5d0\uc11c \ud574\ub2f9 SIL\uc5d0 \uc801\uc808\ud55c \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d\uc218\ub2e8\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \ucda9\ubd84\ud788 \uc5b5\uc81c\ud588\ub2e4\uace0 \ud310\ub2e8\ud558\ub294 \uac83\uc774\ub2e4.\n\\end{warningbox}\n\n\\subsection{\uc804\uccb4 \ud750\ub984}\n\n\\begin{center}\n\\begin{tikzpicture}[\n node distance=8mm and 6mm,\n box\/.style={draw=navy, rounded corners, fill=bluegray, align=center, minimum height=10mm, text width=29mm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray}\n]\n\\node[box] (plan) {\uae30\ub2a5\uc548\uc804\uad00\ub9ac\\\\\uac1c\ubc1c\uacc4\ud68d};\n\\node[box, right=of plan] (req) {\uc18c\ud504\ud2b8\uc6e8\uc5b4\\\\\uc548\uc804\uc694\uad6c\uc0ac\ud56d};\n\\node[box, right=of req] (arch) {\uc544\ud0a4\ud14d\ucc98\uc640\\\\\uc0c1\uc138\uc124\uacc4};\n\\node[box, below=of arch] (code) {\ucf54\ub529\uacfc\\\\\ub3c4\uad6c \ud1b5\uc81c};\n\\node[box, left=of code] (unit) {\ubaa8\ub4c8\uc2dc\ud5d8\uacfc\\\\\ud1b5\ud569\uc2dc\ud5d8};\n\\node[box, left=of unit] (valid) {\uc804\uccb4 \ud1b5\ud569\uacfc\\\\Validation};\n\\node[box, below=of valid] (change) {Safety Manual\\\\\ubcc0\uacbd\uad00\ub9ac};\n\\node[box, right=of change] (evidence) {\uc801\ud569\uc131 \uc785\uc99d\\\\Evidence};\n\\draw[arrow] (plan) -- (req);\n\\draw[arrow] (req) -- (arch);\n\\draw[arrow] (arch) -- (code);\n\\draw[arrow] (code) -- (unit);\n\\draw[arrow] (unit) -- (valid);\n\\draw[arrow] (valid) -- (change);\n\\draw[arrow] (change) -- (evidence);\n\\draw[arrow, dashed] (change.east) to[bend right=24] node[below, font=\\scriptsize]{\uc601\ud5a5\ubd84\uc11d\u00b7\uc7ac\uac80\uc99d} (req.south);\n\\end{tikzpicture}\n\\end{center}\n\n% =========================================================\n\\section{\ud0a4\uc6cc\ub4dc \uc815\uc758}\n% =========================================================\n\n\\subsection{\uae30\ubcf8 \uac1c\ub150}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nIEC 61508 Part 3 & \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8, Validation, \ubcc0\uacbd \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \ub2e4\ub8e8\ub294 \uaddc\uc815\uc774\ub2e4. \\\\\n\uccb4\uacc4\uc801 \uace0\uc7a5 & \uc694\uad6c\uc0ac\ud56d \uc624\ub958, \uc124\uacc4\uacb0\ud568, \ucf54\ub529\uc624\ub958, \ub3c4\uad6c\uc624\ub958 \ub610\ub294 \ubcc0\uacbd\uc624\ub958\ucc98\ub7fc \ud2b9\uc815 \uc870\uac74\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uace0\uc7a5\uc774\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd80\ud488 \uace0\uc7a5\ub960 \ubc29\uc2dd\uc73c\ub85c \uc9c1\uc811 \uc608\uce21\ud558\uc9c0 \uc54a\ub294\ub2e4. \\\\\nSIL & Safety Integrity Level\uc758 \uc57d\uc5b4\uc774\ub2e4. \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c\ub294 SIL\uc774 \ub192\uc544\uc9c8\uc218\ub85d \uc694\uad6c\uc0ac\ud56d \ud45c\ud604, \uc124\uacc4\uae30\ubc95, \uc2dc\ud5d8\ubc94\uc704, \ub3c5\ub9bd\uc131 \ubc0f \ubb38\uc11c\ud654\uac00 \uac15\ud654\ub41c\ub2e4. \\\\\n\uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 & \uac80\uc99d\ub41c \ud50c\ub7ab\ud3fc \uc704\uc5d0 \ud2b9\uc815 \uacf5\uc815\uc774\ub098 \uc548\uc804\uae30\ub2a5\uc744 \uad6c\ud604\ud558\ub294 \ub85c\uc9c1\uc774\ub2e4. PLC \ub798\ub354, Function Block \ub4f1\uc774 \ub300\ud45c\uc801\uc774\ub2e4. \\\\\n\uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4 & \ud558\ub4dc\uc6e8\uc5b4 \uae30\ub2a5\uacfc \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub418\uc5b4 \uac1c\ubc1c\ub418\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc774\ub2e4. \uace0\uae09\uc5b8\uc5b4\uc640 \uc5b4\uc148\ube14\ub7ec\uac00 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\uba70 \ub354 \uc0c1\uc138\ud55c \uc124\uacc4\uc640 \ubd84\uc11d\uc774 \ud544\uc694\ud558\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc0dd\uba85\uc8fc\uae30\uc640 \uad00\ub9ac}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nSoftware Development Plan & \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\uad00\ub9ac, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \uc815\uc758\ud558\ub294 \uacc4\ud68d\uc774\ub2e4. \\\\\nV-Model & \uc694\uad6c\uc0ac\ud56d\uc5d0\uc11c \ucf54\ub4dc\ub85c \uad6c\uccb4\ud654\ud558\uace0, \ucf54\ub4dc\uc5d0\uc11c \ubaa8\ub4c8\u00b7\ud1b5\ud569\u00b7\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc2dc\ud5d8\uc73c\ub85c \uc62c\ub77c\uac00\uba70 \uac01 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a4\ub294 \uc0dd\uba85\uc8fc\uae30 \ubaa8\ub378\uc774\ub2e4. \\\\\nVerification & \uac01 \ub2e8\uacc4\uc758 \uc0b0\ucd9c\ubb3c\uc774 \uc774\uc804 \ub2e8\uacc4\uc758 \uc785\ub825\uacfc \uc694\uad6c\uc0ac\ud56d\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\uc871\ud558\ub294\uc9c0 \uac80\ud1a0\ud558\uace0 \uc2dc\ud5d8\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\nValidation & \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uba70 \ud544\uc694\ud55c \uc808\ucc28\uac00 \uc218\ud589\ub418\uc5c8\ub294\uc9c0\ub97c \ucd5c\uc885 \ud655\uc778\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\n\ud615\uc0c1\uad00\ub9ac & \ud615\uc0c1\ud56d\ubaa9\uc744 \uc2dd\ubcc4\ud558\uace0 \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\uba70 \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\nBaseline & \uac80\ud1a0\uc640 \uc2b9\uc778\uc774 \uc644\ub8cc\ub418\uc5b4 \uc774\ud6c4 \ubcc0\uacbd\uc774 \uacf5\uc2dd \ubcc0\uacbd\uc808\ucc28\ub97c \ud1b5\ud574\uc11c\ub9cc \ud5c8\uc6a9\ub418\ub294 \ud615\uc0c1\uc758 \uae30\uc900\uc810\uc774\ub2e4. \\\\\n\ucd94\uc801\uc131 & \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\ud56d\ubaa9 \ubc0f \uc2dc\ud5d8\uacb0\uacfc\uc640 \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ub418\ub294 \uc131\uc9c8\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nSoftware Safety Requirements Specification & \uc548\uc804\uae30\ub2a5\uacfc \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud615\ud0dc\ub85c \uc815\uc758\ud558\ub294 \ubb38\uc11c\uc774\ub2e4. \\\\\n\ubc18\uc815\ud615 \uae30\ubc95 & Logic Diagram, Cause and Effect Chart, State Transition Diagram, Truth Table, Data Flow Diagram \ub4f1 \uc790\uc5f0\uc5b4\ubcf4\ub2e4 \uad6c\uc870\ud654\ub41c \ud45c\ud604\ubc29\ubc95\uc774\ub2e4. \\\\\n\ubaa8\ub4c8\ud654 & \uae30\ub2a5\uc744 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ub2e8\uc704\ub85c \ubd84\ub9ac\ud558\uc5ec \ubcf5\uc7a1\ub3c4\ub97c \ub0ae\ucd94\uace0 \uc2dc\ud5d8\uacfc \ubcc0\uacbd\uc744 \uc6a9\uc774\ud558\uac8c \ud558\ub294 \uc124\uacc4\uc6d0\uce59\uc774\ub2e4. \\\\\n\ube44\uac04\uc12d\uc131 & \ube44\uc548\uc804 \uae30\ub2a5\uc758 \uc624\ub958\ub098 \uc790\uc6d0\uc0ac\uc6a9\uc774 \uc548\uc804\uad00\ub828 \uae30\ub2a5\uc758 \uc218\ud589\uc744 \ubc29\ud574\ud558\uc9c0 \uc54a\ub294 \uc131\uc9c8\uc774\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \uc2dc\uac04, \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c\ub97c \uac80\ud1a0\ud55c\ub2e4. \\\\\n\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d & \uc785\ub825 \ubc94\uc704, \ud0c0\ub2f9\uc131, \uc0c1\ud0dc\uc804\uc774 \ubc0f \uc624\ub958\uc870\uac74\uc744 \uac80\uc0ac\ud558\uc5ec \ube44\uc815\uc0c1 \uc0c1\ud669\uc744 \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\ub294 \ucf54\ub529\ubc29\ubc95\uc774\ub2e4. \\\\\n\uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569 & \ub3d9\uc801 \uac1d\uccb4, \ubb34\uc870\uac74 \ubd84\uae30, \uacfc\ub3c4\ud55c \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130 \ub4f1 \uac80\uc99d\uc744 \uc5b4\ub835\uac8c \ud558\ub294 \uae30\ub2a5\uc744 \uc81c\ud55c\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uaddc\uce59\uc774\ub2e4. \\\\\n\uc9c0\uc6d0\ub3c4\uad6c & Compiler, PLC Engineering Tool, Code Generator, \uc815\uc801\ubd84\uc11d \ub3c4\uad6c, PFD \uacc4\uc0b0 \ud504\ub85c\uadf8\ub7a8 \ub4f1 \uc0dd\uba85\uc8fc\uae30 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ub3c4\uad6c\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc2dc\ud5d8, \uc7ac\uc0ac\uc6a9 \ubc0f \uc801\ud569\uc131 \uc785\uc99d}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\n\ubaa8\ub4c8\uc2dc\ud5d8 & \uac1c\ubcc4 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc218\ud589\ud558\uace0 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4. \\\\\n\ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8 & \ubaa8\ub4c8\uc744 \ub2e8\uacc4\uc801\uc73c\ub85c \uacb0\ud569\ud558\uc5ec \uae30\ub2a5, \uc778\ud130\ud398\uc774\uc2a4, Black Box \ub3d9\uc791 \ubc0f \uc131\ub2a5\uc744 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4. \\\\\n\uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 & \uc694\uad6c\uc0ac\ud56d, \ucf54\ub4dc\uacbd\ub85c, \uacbd\uacc4\uc870\uac74 \ub610\ub294 \uc0c1\ud0dc\uc870\ud569\uc774 \uc2dc\ud5d8\uc73c\ub85c \uc5bc\ub9c8\ub098 \ud655\uc778\ub418\uc5c8\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\uc774\ub2e4. \\\\\nSafety Manual & \uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uae30\ub2a5, \uad6c\uc131, \uac00\uc815, \uc124\uce58\uc870\uac74, \ub3c4\uad6c\ubc84\uc804, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d \ubc0f \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\uc744 \uc81c\uacf5\ud558\ub294 \ubb38\uc11c\uc774\ub2e4. \\\\\nTrusted\/Verified Module & \uc774\uc804\uc5d0 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub418\uc5c8\uac70\ub098 \uc720\uc0ac\ud55c \uc6a9\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ub41c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774\ub2e4. \ud604\uc7ac \ud658\uacbd\uc5d0 \ub300\ud55c \uc801\ud569\uc131 \uac80\ud1a0\ub294 \ubcc4\ub3c4\ub85c \ud544\uc694\ud558\ub2e4. \\\\\nData-driven System & \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc758 \uae30\ub2a5\uc744 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uad6c\uc131\ud558\uc5ec \uc751\uc6a9\uae30\ub2a5\uc744 \ub9cc\ub4dc\ub294 \uc2dc\uc2a4\ud15c\uc774\ub2e4. \\\\\n\uc815\uc801\ubd84\uc11d & \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc5f0\uc0b0\uad00\uacc4\ub97c \ubd84\uc11d\ud558\ub294 \uae30\ubc95\uc774\ub2e4. \\\\\n\ud615\uc2dd\uae30\ubc95 & \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \ud45c\ud604\ud558\uace0 \uac80\uc99d\ud558\ub294 \uae30\ubc95\uc774\ub2e4. \\\\\n\uc801\ud569\uc131 \uc785\uc99d & \ud45c\uc900\uc758 \uac01 \uc694\uad6c\uc0ac\ud56d\uacfc \uc774\ub97c \ucda9\uc871\ud558\ub294 \uacc4\ud68d\uc11c, \uc0ac\uc591\uc11c, \uc124\uacc4\uc11c, \uac80\ud1a0\uc11c \ubc0f \uc2dc\ud5d8\uc131\uc801\uc11c\ub97c \uc5f0\uacb0\ud558\ub294 \ubb38\uc11c\ud654 \ud65c\ub3d9\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n% =========================================================\n\\section{\ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4}\n% =========================================================\n\n\\subsection{V-Model \uad00\uacc4}\n\n\\begin{center}\n\\begin{tikzpicture}[\n x=1cm,y=1cm,\n box\/.style={draw=navy, rounded corners, fill=bluegray, align=center, minimum width=3.6cm, minimum height=0.9cm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray},\n match\/.style={<->, dashed, thick, draw=accent}\n]\n\\node[box] (ssrs) at (0,4.8) {\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d};\n\\node[box] (arch) at (1.1,3.5) {\uc544\ud0a4\ud14d\ucc98\u00b7\uc911\uac04\uc124\uacc4};\n\\node[box] (module) at (2.2,2.2) {\ubaa8\ub4c8 \uc0c1\uc138\uc124\uacc4};\n\\node[box] (code) at (3.3,0.9) {\ucf54\ub529};\n\\node[box] (ut) at (4.4,2.2) {\ubaa8\ub4c8\uc2dc\ud5d8};\n\\node[box] (it) at (5.5,3.5) {\ud1b5\ud569\uc2dc\ud5d8};\n\\node[box] (val) at (6.6,4.8) {\uc804\uccb4\uc2dc\ud5d8\u00b7Validation};\n\\draw[arrow] (ssrs) -- (arch);\n\\draw[arrow] (arch) -- (module);\n\\draw[arrow] (module) -- (code);\n\\draw[arrow] (code) -- (ut);\n\\draw[arrow] (ut) -- (it);\n\\draw[arrow] (it) -- (val);\n\\draw[match] (ssrs) -- node[above, font=\\scriptsize]{\uc694\uad6c\uc0ac\ud56d \ucda9\uc871} (val);\n\\draw[match] (arch) -- node[above, font=\\scriptsize]{\uad6c\uc870\u00b7\uc778\ud130\ud398\uc774\uc2a4} (it);\n\\draw[match] (module) -- node[above, font=\\scriptsize]{\ubaa8\ub4c8 \uae30\ub2a5} (ut);\n\\node[align=center, text=darkgray, font=\\small] at (0.2,0.9) {\uc124\uacc4\uc758 \uad6c\uccb4\ud654\\\\\\textbf{Verification \uacc4\ud68d \ud3ec\ud568}};\n\\node[align=center, text=darkgray, font=\\small] at (6.4,0.9) {\uc2dc\ud5d8\uc758 \ud1b5\ud569\\\\\\textbf{Evidence \ucd95\uc801}};\n\\end{tikzpicture}\n\\end{center}\n\n\\begin{keybox}{V-Model\uc758 \ud575\uc2ec}\nV-Model\uc740 \ucf54\ub529 \ud6c4 \uc2dc\ud5d8\uc744 \uc2dc\uc791\ud558\ub294 \ubc29\uc2dd\uc774 \uc544\ub2c8\ub2e4. \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc791\uc131\ud560 \ub54c \ub300\uc751 \uc2dc\ud5d8\ubc29\ubc95\uacfc \ud569\uaca9\uae30\uc900\uc744 \ud568\uaed8 \uc815\ud558\uace0, \uac01 \uac1c\ubc1c\ub2e8\uacc4\uc758 \uacb0\uacfc\ub97c \ub300\uc751 \uc2dc\ud5d8\ub2e8\uacc4\uc5d0\uc11c \ud655\uc778\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.\n\\end{keybox}\n\n\\subsection{Verification\uacfc Validation\uc758 \ucc28\uc774}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X X}\n\\toprule\n\uad6c\ubd84 & Verification & Validation \\\\\n\\midrule\n\ud575\uc2ec \uc9c8\ubb38 & \uac01 \uc0b0\ucd9c\ubb3c\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\ub4e4\uc5c8\ub294\uac00? & \uc644\uc131\ub41c \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\uc801\uc744 \ub9cc\uc871\ud558\ub294\uac00? \\\\\n\uc801\uc6a9 \uc2dc\uc810 & \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \ubaa8\ub4c8\ud1b5\ud569 \ub4f1 \uac01 \ub2e8\uacc4 & \uc804\uccb4 \uc2dc\uc2a4\ud15c \ud1b5\ud569 \ud6c4 \ucd5c\uc885 \ud655\uc778 \\\\\n\uc8fc\uc694 \ubc29\ubc95 & Review, Code Review, \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 & Acceptance Test, \uc694\uad6c\uc0ac\ud56d\ubcc4 \uc885\ud569 \ud655\uc778, \uc808\ucc28 \uc900\uc218 \ud655\uc778 \\\\\n\uc8fc\uc694 \uc99d\uac70 & \uac80\ud1a0\uae30\ub85d, \ubaa8\ub4c8\uc2dc\ud5d8\uc131\uc801\uc11c, \ud1b5\ud569\uc2dc\ud5d8\uc131\uc801\uc11c & Validation Plan, \ucd5c\uc885 \uc2dc\ud5d8\uacb0\uacfc, \ubd88\uc77c\uce58 \uc885\uacb0\uae30\ub85d \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{SIL \uc0c1\uc2b9\uc5d0 \ub530\ub978 \uc694\uad6c\uc218\uc900}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.22\\textwidth} X X X}\n\\toprule\n\ud56d\ubaa9 & SIL 1--2 & SIL 3 & SIL 4 \\\\\n\\midrule\n\uc694\uad6c\uc0ac\ud56d \ud45c\ud604 & \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95 & \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95 & \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uacfc \ud575\uc2ec\ubd80\ubd84\uc758 \ucef4\ud4e8\ud130 \uc9c0\uc6d0 \\\\\n\ucf54\ub529 & \uad6c\uc870\ud654\u00b7\uc81c\ud55c\ub41c \uc5b8\uc5b4, SIL 2 \uc774\uc0c1 \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30 \uae08\uc9c0 & \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d, \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130\u00b7\uc7ac\uadc0 \uc81c\ud55c \uac15\ud654 & SIL 3 \uc218\uc900\uc5d0 \ub354 \uc5c4\uaca9\ud55c \uc801\uc6a9 \\\\\n\uc2dc\ud5d8 & \uacbd\uacc4\uac12\uc2dc\ud5d8, \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8 & \uc911\uc694 \uc0ac\uac74\uc758 Cause-Consequence \uae30\ubc18 \uc2dc\ud5d8 \ucd94\uac00 & SIL 3 \uc218\uc900\uc5d0 \ub354 \ub192\uc740 \uc5c4\uaca9\uc131 \\\\\nValidation & SIL 2 \uc774\uc0c1 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c \uc81c\uc2dc & \uc815\ud655\uc131\u00b7\uc77c\uad00\uc131\u00b7\ucf54\ub529\uaddc\uce59 \uc900\uc218\uc758 \uac15\ud654\ub41c \ud655\uc778 & \ud615\uc2dd\uae30\ubc95 \ub4f1\uc744 \ud3ec\ud568\ud55c \ucd5c\uace0 \uc218\uc900\uc758 \ud655\uc778 \\\\\n\ubcc0\uacbd \ud6c4 & SIL 1 \ubcc0\uacbd \ubaa8\ub4c8, SIL 2 \uc601\ud5a5 \ubaa8\ub4c8 \uc7ac\uac80\uc99d & \uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation & \uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation\uacfc \ub354 \uc5c4\uaca9\ud55c \uc99d\uac70 \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac\uc640 \uc2dc\ud5d8\uc99d\uac70\uc758 \uad00\uacc4}\n\n\\begin{center}\n\\begin{tikzpicture}[\n node distance=7mm,\n box\/.style={draw=navy2, rounded corners, fill=palegreen, align=center, minimum height=9mm, text width=32mm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray}\n]\n\\node[box] (ci) {\ud615\uc0c1\ud56d\ubaa9 \uc2dd\ubcc4};\n\\node[box, right=of ci] (base) {Baseline \uc2b9\uc778};\n\\node[box, right=of base] (test) {\uc2b9\uc778 \ud615\uc0c1 \uc2dc\ud5d8};\n\\node[box, below=of test] (release) {Release \uc2b9\uc778};\n\\node[box, left=of release] (install) {\ud604\uc7a5 \uc124\uce58\ubcf8 \ud655\uc778};\n\\node[box, left=of install] (change) {\ubcc0\uacbd\uc694\uccad\u00b7\uc601\ud5a5\ubd84\uc11d};\n\\draw[arrow] (ci) -- (base);\n\\draw[arrow] (base) -- (test);\n\\draw[arrow] (test) -- (release);\n\\draw[arrow] (release) -- (install);\n\\draw[arrow] (install) -- (change);\n\\draw[arrow] (change) -- (ci);\n\\end{tikzpicture}\n\\end{center}\n\n\\begin{summarybox}\n\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\ud5d8\ud55c \ud615\uc0c1\uc758 \ubc84\uc804\uc774 \uba85\ud655\ud560 \ub54c\ub9cc \uc720\ud6a8\ud55c \uc99d\uac70\uac00 \ub41c\ub2e4. \ud615\uc0c1\uad00\ub9ac\ub294 \uc124\uacc4\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, \uc2dc\ud5d8\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, Release\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \ub3d9\uc77c\ud558\ub2e4\ub294 \uac83\uc744 \ubcf4\uc99d\ud55c\ub2e4.\n\\end{summarybox}\n\n% =========================================================\n\\section{\uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85}\n% =========================================================\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uc758 \uc870\uc9c1\uacfc \uad00\ub9ac}\n\n\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc740 \uae30\ub2a5\uc548\uc804\uad00\ub9ac\uccb4\uacc4 \uc548\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud55c\ub2e4. \uac1c\ubc1c\uacc4\ud68d\uc5d0\ub294 \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\ud56d\ubaa9, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \ud3ec\ud568\ud55c\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc758 \ubcf5\uc7a1\ub3c4\uc640 \ubaa9\ud45c SIL\uc5d0 \ub9de\ucd94\uc5b4 \uc0dd\uba85\uc8fc\uae30\ub97c \uc815\uc758\ud558\uace0 \ubb38\uc11c\ub85c \uc124\uba85\ud574\uc57c \ud55c\ub2e4.\n\n\ud45c\uc900\uc740 V-Model\uc744 \uad8c\uace0\ud558\uc9c0\ub9cc Waterfall \ub4f1 \ub2e4\ub978 \ubaa8\ub378\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc V-Model\uacfc \ub3d9\ub4f1\ud55c \uc124\uacc4\ub2e8\uacc4, \uac80\uc99d\ub2e8\uacc4, \ucd94\uc801\uc131 \ubc0f \uac80\ud1a0 \ud2b9\uc131\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4. SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud45c\uc900 \uc0dd\uba85\uc8fc\uae30 \ud65c\ub3d9\uacfc \ub2e4\ub978 \ubd80\ubd84\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\ub2f9\ud654\ud558\uace0 \uac80\ud1a0\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.1 Organizing and Managing the Software Engineering}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac \uc808\ucc28 \uc124\uc815}\n\n\uc6d0\ubb38\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28\uc5d0 \ub2e4\uc74c \ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud3ec\ud568\ud558\ub3c4\ub85d \uc694\uad6c\ud55c\ub2e4.\n\n\\begin{enumerate}\n \\item \ud615\uc0c1\ud1b5\uc81c\ub97c \uc2dc\uc791\ud558\ub294 \uc0dd\uba85\uc8fc\uae30 \ub2e8\uacc4\n \\item \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\ub294 \uc704\uce58\uc640 \uc2b9\uc778\ubc29\ubc95\n \\item \uc694\uad6c\uc0ac\ud56d \ucd94\uc801\ubc29\ubc95\n \\item \ubcc0\uacbd\ud1b5\uc81c \uc808\ucc28\n \\item \ubcc0\uacbd \uc601\ud5a5\ud3c9\uac00\n \\item Release\uc640 \ud3d0\uae30 \uaddc\uce59\n\\end{enumerate}\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud615\uc0c1\ud1b5\uc81c\ub97c \uac00\uc7a5 \uc791\uc740 \ucef4\ud30c\uc77c \ubaa8\ub4c8 \ub610\ub294 \ub2e8\uc704\uae4c\uc9c0 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.1, software configuration management process}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uba85\uc138\uc11c \uc791\uc131}\n\nSoftware Safety Requirements Specification\uc5d0\ub294 \uc548\uc804\uae30\ub2a5\uacfc \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \ud568\uaed8 \uaddc\uc815\ud55c\ub2e4. \uc6d0\ubb38\uc774 \uc81c\uc2dc\ud558\ub294 \uc8fc\uc694 \ud56d\ubaa9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \ucc98\ub9ac\uc6a9\ub7c9\uacfc \uc751\ub2f5\uc2dc\uac04\n \\item \uc7a5\ube44 \ubc0f \uc6b4\uc804\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc624\uc0ac\uc6a9\n \\item \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc790\uae30\uac10\uc2dc\n \\item \uc548\uc804\uc0c1\ud0dc\ub97c \uac15\uc81c\ud558\ub294 \uae30\ub2a5\n \\item \ub370\uc774\ud130 \uc800\uc7a5\uacf5\uac04\uc758 Overflow\uc640 Underflow\n \\item \ub370\uc774\ud130 \uc190\uc0c1\n \\item \ud5c8\uc6a9\ubc94\uc704\ub97c \ubc97\uc5b4\ub09c \uac12\n \\item \uc6b4\uc804 \uc911 \uc548\uc804\uae30\ub2a5\uc758 \uc8fc\uae30\uc801 \uc2dc\ud5d8\n \\item \ubaa8\ub4e0 \uc6b4\uc804\ubaa8\ub4dc, \uc720\uc9c0\ubcf4\uc218 \uc694\uad6c, \ub0b4\ubd80\u00b7\uc678\ubd80 \uc778\ud130\ud398\uc774\uc2a4\n\\end{itemize}\n\n\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc815\ud655\ud558\uba70 \ubaa8\ud638\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. \ub610\ud55c \uc0c1\uc704 \uc548\uc804\uc0ac\uc591\uacfc \uad00\ub828 \ubb38\uc11c\uae4c\uc9c0 \ucd94\uc801\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \uba85\uc138\ub294 \ud615\uc0c1\ud1b5\uc81c \ub2e8\uc704\uae4c\uc9c0 \ub0b4\ub824\uac00\uc57c \ud55c\ub2e4.\n\n\\begin{practicebox}{\uc2dc\ud5d8 \uac00\ub2a5\ud55c \uc694\uad6c\uc0ac\ud56d\uc758 \uc608}\n\ubaa8\ud638\ud55c \ud45c\ud604: ``\uc774\uc0c1\uc555\ub825\uc774 \ubc1c\uc0dd\ud558\uba74 \uc2e0\uc18d\ud788 \uc815\uc9c0\ud55c\ub2e4.''\n\n\uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud45c\ud604: ``\uc555\ub825\uc774 \uc124\uc815\uac12 \uc774\uc0c1\uc73c\ub85c \uc9c0\uc815\ub41c \uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ub418\uba74 \ucc28\ub2e8\ucd9c\ub825\uc744 \uc815\ud574\uc9c4 \uc751\ub2f5\uc2dc\uac04 \uc774\ub0b4\uc5d0 \ubc1c\uc0dd\uc2dc\ud0a4\uace0, \uc218\ub3d9 Reset \uc804\uae4c\uc9c0 \uc7ac\uae30\ub3d9\uc744 \uae08\uc9c0\ud55c\ub2e4.''\n\\end{practicebox}\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc801\uc6a9\ud55c\ub2e4. SIL 4\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ucef4\ud4e8\ud130 \uc9c0\uc6d0\ub3c4\uad6c\ub97c \ucd94\uac00\ud55c\ub2e4.\n\n\\sourcepara{4.2 Requirements Involving the Specification}\n\n\\subsection{\uc544\ud0a4\ud14d\ucc98 \uc124\uacc4\uc640 \ube44\uac04\uc12d\uc131}\n\n\uc124\uacc4\ubc29\ubc95\uc740 \ubaa8\ub4c8\ud654\ub97c \uc9c0\uc6d0\ud558\uace0 \ubcf5\uc7a1\ub3c4\ub97c \uc904\uc5ec\uc57c \ud55c\ub2e4. \uae30\ub2a5, \uc815\ubcf4\ud750\ub984, \ub370\uc774\ud130\uad6c\uc870, \uc2e4\ud589\uc21c\uc11c, \uc2dc\uac04\uc81c\uc57d \ubc0f \uc124\uacc4\uac00\uc815\uc744 \uba85\ud655\ud558\uac8c \ud45c\ud604\ud574\uc57c \ud55c\ub2e4.\n\n\uc2dc\uc2a4\ud15c \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \ub2e4\uc74c \uc9c4\ub2e8\uae30\ub2a5\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc2dc\uc2a4\ud15c \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5 \uc9c4\ub2e8\n \\item \ud1b5\uc2e0\ub9c1\ud06c \uc624\ub958 \uac80\ucd9c\n \\item \ud45c\uc900 \uc751\uc6a9\ubaa8\ub4c8\uc758 \uc628\ub77c\uc778 \uc2dc\ud5d8\n \\item \uace0\uc7a5 \uac80\ucd9c \uc2dc \uace0\uc7a5 \uc694\uc18c\ub97c \uaca9\ub9ac\ud558\uac70\ub098 \uc548\uc804\uc0c1\ud0dc\ub85c \uc804\ud658\ud558\ub294 \ucc98\ub9ac\n\\end{itemize}\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 Watchdog\uc640 \uc9c1\ub82c\ud1b5\uc2e0 \uc624\ub958\uac80\ucd9c \uac19\uc740 \uae30\ubcf8 \uc9c4\ub2e8\uc774 \ud544\uc694\ud558\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc13c\uc11c, I\/O \ud68c\ub85c, \ub17c\ub9ac\ucc98\ub9ac\ubd80, \ucd9c\ub825\uc694\uc18c, \ud1b5\uc2e0 \ubc0f \uba54\ubaa8\ub9ac\uae4c\uc9c0 \uace0\uc7a5\uac80\ucd9c\uc744 \ud655\ub300\ud55c\ub2e4.\n\n\uc548\uc804\uae30\ub2a5\uacfc \ube44\uc548\uc804\uae30\ub2a5\uc774 \uac19\uc740 \ud50c\ub7ab\ud3fc\uc5d0 \uc874\uc7ac\ud558\uba74 \ube44\uac04\uc12d\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uac80\ud1a0\ub300\uc0c1\uc740 \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \ucc98\ub9ac\uc2dc\uac04, \uae30\ub2a5 \uac04 \ud1b5\uc2e0 \ubc0f \ud55c \uc694\uc18c\uc758 \uc624\ub958\uac00 \ub2e4\ub978 \uc694\uc18c\ub85c \uc804\ud30c\ub418\ub294 \uac00\ub2a5\uc131\uc774\ub2e4.\n\n\\sourcepara{4.3.1 Features of the Design and Architecture}\n\n\\subsection{\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529}\n\n\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529\uc740 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ubaa8\ub4c8\uc744 \ub9cc\ub4e4\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ubc18\uc815\ud615 \uc124\uacc4\ubc29\ubc95, \uc124\uacc4\ud45c\uc900, \ucf54\ub529\ud45c\uc900 \ubc0f \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uac00\ub2a5\ud55c \ud55c \uc720\uc0ac\ud55c \uc751\uc6a9\uc5d0\uc11c \uc0ac\uc6a9\ub418\uace0 \uc2dc\ud5d8\ub41c Trusted\/Verified Module\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc7ac\uc0ac\uc6a9 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ud604\uc7ac \uc2dc\uc2a4\ud15c \uc801\ud569\uc131\uc774 \uc790\ub3d9 \ubcf4\uc7a5\ub418\uc9c0\ub294 \uc54a\ub294\ub2e4. \uc801\uc6a9\ud658\uacbd\uacfc \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud655\uc778\ud574\uc57c \ud55c\ub2e4.\n\n\uc624\ud504\ub77c\uc778 \ub3c4\uad6c\ub85c \ucda9\ubd84\ud788 \ud655\uc778\ud558\uae30 \uc5b4\ub824\uc6b4 \ub3d9\uc801 \uac1d\uccb4\ub294 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubcc0\uc218\uc758 \ubc94\uc704\uc640 \uac00\ub2a5\ud558\uba74 \ud0c0\ub2f9\uc131\uc744 \ud568\uaed8 \uac80\uc0ac\ud558\ub294 \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud558\uba70, \uc778\ud130\ub7fd\ud2b8, \ud3ec\uc778\ud130 \ubc0f \uc7ac\uadc0\uc758 \uc0ac\uc6a9\uc744 \uc81c\ud55c\ud55c\ub2e4.\n\n\\sourcepara{4.3.2 Detailed Design and Coding}\n\n\\subsection{\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc640 \uc9c0\uc6d0\ub3c4\uad6c}\n\n\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub294 \uc644\uc804\ud558\uace0 \ubaa8\ud638\ud558\uc9c0 \uc54a\uac8c \uc815\uc758\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ucf54\ub529\ud45c\uc900\uacfc \uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc0ac\uc6a9\ud55c\ub2e4.\n\n\\begin{itemize}\n \\item SIL 2 \uc774\uc0c1: \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30\ub97c \uae08\uc9c0\ud55c\ub2e4.\n \\item SIL 3\uacfc SIL 4: \uc778\ud130\ub7fd\ud2b8\uc640 \ud3ec\uc778\ud130 \uc81c\ud55c\uc744 \uac15\ud654\ud558\uace0, \ub3c4\uad6c \uc624\ub958\uc5d0 \ub300\ube44\ud55c \ub2e4\uc591\uc131 \uae30\ub2a5\uc744 \uac80\ud1a0\ud55c\ub2e4.\n\\end{itemize}\n\n\uc9c0\uc6d0\ub3c4\uad6c\ub294 \ucda9\ubd84\ud55c \uc0ac\uc6a9\uc2e4\uc801\uc774 \uc788\uace0 \uc54c\ub824\uc9c4 \uc624\ub958\uac00 \ud574\uacb0\ub418\uc5c8\uac70\ub098 \uc548\uc804\uc2dc\uc2a4\ud15c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc778\uc99d\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc778\uc99d\ub41c \ub3c4\uad6c\uac00 \ub354 \uac15\ud558\uac8c \uad8c\uace0\ub41c\ub2e4.\n\n\uc774 \uc694\uad6c\ub294 Compiler\ub098 PLC \ub3c4\uad6c\uc5d0\ub9cc \uc801\uc6a9\ub418\uc9c0 \uc54a\ub294\ub2e4. \uc548\uc804\ub8e8\ud504 PFD \ub610\ub294 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \uc624\ud504\ub77c\uc778 \ud328\ud0a4\uc9c0\ub3c4 \uc644\uc804\uc131\uacfc \uc815\ud655\uc131\uc744 \ud3c9\uac00\ud558\uace0 \uba85\ud655\ud55c \uc0ac\uc6a9\uc124\uba85\uc11c\ub97c \uc81c\uacf5\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.3.3 Programming Language and Support Tools}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc2dc\ud5d8\uacfc \ud1b5\ud569\uc2dc\ud5d8}\n\n\uac01 \ubaa8\ub4c8\uc740 Code Review\uc640 \uc2dc\ud5d8\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc2dc\ud5d8\ubaa9\ud45c\ub294 \ub2e4\uc74c \ub450 \uac00\uc9c0\uc774\ub2e4.\n\n\\begin{enumerate}\n \\item \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc815\ud655\ud788 \uc218\ud589\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n \\item \uc81c\ud55c\ub41c \ube44\uc815\uc0c1 \ub370\uc774\ud130\ub85c \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n\\end{enumerate}\n\n\ubaa8\ub4c8\uc2dc\ud5d8 \ud6c4\uc5d0\ub294 \uc0ac\uc804\uc5d0 \uc815\uc758\ud55c \uc2dc\ud5d8\uc0ac\ub840\uc640 \uc2dc\ud5d8\ub370\uc774\ud130\ub85c \ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8\uc744 \uc218\ud589\ud55c\ub2e4. \uae30\ub2a5\uc2dc\ud5d8, Black Box \uc2dc\ud5d8 \ubc0f \uc131\ub2a5\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4.\n\n\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\uac04\uc21c\uc73c\ub85c \uae30\ub85d\ud55c\ub2e4. \ubaa8\ub4c8\ubc84\uc804\uacfc \uc2dc\ud5d8\uc808\ucc28\uc11c \ubc84\uc804\uc744 \uba85\uc2dc\ud558\uace0 \uc608\uc0c1\uacb0\uacfc\uc640 \uc2e4\uc81c\uacb0\uacfc\uc758 \ubd88\uc77c\uce58\ub97c \uba85\ud655\ud558\uac8c \ud45c\uc2dc\ud55c\ub2e4. \uc2dc\ud5d8 \uc774\ud6c4 \ubcc0\uacbd\uc774 \ubc1c\uc0dd\ud558\uba74 \uc601\ud5a5\ubd84\uc11d\uc73c\ub85c \uc7ac\uc2dc\ud5d8 \ubc94\uc704\ub97c \uacb0\uc815\ud55c\ub2e4.\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \uacbd\uacc4\uac12\uc2dc\ud5d8\uacfc \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc911\uc694\ud55c \uc0ac\uac74\uc758 Cause-Consequence \ubd84\uc11d\uc5d0\uc11c \ub3c4\ucd9c\ud55c \uc2dc\ud5d8\uc744 \ucd94\uac00\ud55c\ub2e4.\n\n\\sourcepara{4.4.1 Software Module Testing and Integration}\n\n\\subsection{\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8}\n\n\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8\uc740 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud3ec\ud568\ud558\ub294 \ud1b5\ud569 \uc2dc\uc2a4\ud15c\uc744 \uc2dc\ud5d8\ud55c\ub2e4. \uc774 \ub2e8\uacc4\ub294 Factory Acceptance Test\uae4c\uc9c0 \uc774\uc5b4\uc9c8 \uc218 \uc788\ub2e4. \uc2dc\ud5d8 Harness\ub3c4 \uc2dc\ud5d8\uc7a5\ube44\uc758 \uc77c\ubd80\uc774\ubbc0\ub85c \uc124\uacc4\ubb38\uc11c\uc640 \uc801\ud569\uc131 \ud655\uc778\uc774 \ud544\uc694\ud558\ub2e4.\n\n\uc6d0\ubb38\uc740 \uc2dc\ud5d8\uae30\ub85d\uc744 \ud2b9\ud788 \uac15\uc870\ud55c\ub2e4. \uc2dc\ud5d8\uae30\ub85d\uc740 \uc2dc\ud5d8\uacb0\uacfc\ub97c \ud655\uc778\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uac00\uc2dc\uc801 \uc99d\uac70\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.\n\n\\sourcepara{4.4.2 Overall Integration Testing}\n\n\\subsection{Validation}\n\nValidation\uc740 \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \ubaa8\ub4e0 \ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uace0 \uc124\uacc4\uc808\ucc28\uac00 \uc900\uc218\ub418\uc5c8\uc74c\uc744 \ud655\uc778\ud55c\ub2e4. Validation Plan\uc740 \uc804\uccb4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc5b4\ub5bb\uac8c \ud655\uc778\ub418\ub294\uc9c0\ub97c \ubcf4\uc5ec\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc0dd\uba85\uc8fc\uae30 \uc804\uccb4\uc640 \uac10\uc0ac\uc2dc\uc810\n \\item \uad6c\uccb4\uc801\uc778 \ud569\uaca9\u00b7\ubd88\ud569\uaca9 \uae30\uc900\n \\item \uc120\uc815\ud55c Validation \ubc29\ubc95\uacfc \uc120\uc815 \uadfc\uac70\n \\item \ubd80\uc801\ud569 \uc0ac\ud56d\uc758 \ucc98\ub9ac\ubc29\ubc95\n\\end{itemize}\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\uac00 \uc81c\uc2dc\ub418\uc5b4\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc815\ud655\uc131, \uc77c\uad00\uc131 \ubc0f \ucf54\ub529\uaddc\uce59 \ub4f1 \ud45c\uc900 \uc900\uc218\ub97c \ub354\uc6b1 \uc5c4\uaca9\ud558\uac8c \ud655\uc778\ud55c\ub2e4.\n\n\\sourcepara{4.5 Validation}\n\n\\subsection{\uc7ac\uc0ac\uc6a9 \uc694\uc18c\uc758 Safety Manual}\n\n\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uc18c\uc5d0\ub294 Safety Manual\uc774 \ud544\uc694\ud558\ub2e4. \uc8fc\uc694 \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \uc694\uc18c\uc758 \uae30\ub2a5\uacfc \uc18d\uc131\n \\item \uad6c\uc131\uacfc \uc124\uacc4\uac00\uc815\n \\item \ud1b5\ud569\uc790\uc5d0\uac8c \uc694\uad6c\ub418\ub294 \ucd5c\uc18c \uc9c0\uc2dd\n \\item \uc694\uc18c\uc5d0 \uc758\uc874\ud558\ub294 \uc815\ub3c4\n \\item \uc124\uce58\ubc29\ubc95\uacfc Release \uc0ac\uc720\n \\item \ubbf8\ud574\uacb0 \uacb0\ud568\uacfc \ucd94\uac00\ub41c \uae30\ub2a5\n \\item \uc774\uc804 \ubc84\uc804 \ubc0f \ub2e4\ub978 \uc2dc\uc2a4\ud15c\uacfc\uc758 \ud638\ud658\uc131\n \\item \uc6b4\uc601\uccb4\uc81c \uc758\uc874\uc131\n \\item Compiler\uc640 \ub3c4\uad6c\uc758 \uc2dd\ubcc4\uc815\ubcf4\uc640 \ubc84\uc804\n \\item \uc694\uc18c\uc758 \uba85\uce6d, \ubc84\uc804, \uac1c\uc815\uc0c1\ud0dc\n \\item \ubcc0\uacbd\ud1b5\uc81c\uc640 \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\n \\item \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d\n \\item Safety Manual \uc8fc\uc7a5\uc5d0 \ub300\ud55c \uc815\ub2f9\ud654\n\\end{itemize}\n\nSafety Manual\uc740 \ub2e8\uc21c\ud55c \uc778\uc99d\uc11c\uac00 \uc544\ub2c8\ub2e4. \uc7ac\uc0ac\uc6a9 \uc694\uc18c\ub97c \uc5b4\ub5a4 \uc870\uac74\uacfc \uc81c\ud55c \uc548\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\ub824\uc8fc\ub294 \ud1b5\ud569 \uc9c0\uce68\uc774\ub2e4.\n\n\\sourcepara{4.6 Safety Manuals}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubcc0\uacbd}\n\n\ubaa8\ub4e0 \ubcc0\uacbd\uc5d0\ub294 \ubcc0\uacbd\ub85c\uadf8, \uac1c\uc815\uad00\ub9ac, \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5\ubd84\uc11d \ubc0f \uc7ac\uc2dc\ud5d8\uc774 \ud544\uc694\ud558\ub2e4. \ubcc0\uacbd\uc808\ucc28\ub294 \ucd5c\ucd08 \uc124\uacc4 \ub54c \uc801\uc6a9\ud55c \ubc29\ubc95\uacfc \ucd5c\uc18c\ud55c \ub3d9\ub4f1\ud574\uc57c \ud55c\ub2e4. \ubcc0\uacbd\uae30\ub85d\uc5d0\ub294 \ubcc0\uacbd\ub41c \ubb38\uc11c\uc640 \ubcc0\uacbd\ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud45c\uc2dc\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X}\n\\toprule\n\ubaa9\ud45c SIL & \ubcc0\uacbd \ud6c4 \uc694\uad6c\ub418\ub294 \ud655\uc778\ubc94\uc704 \\\\\n\\midrule\nSIL 1 & \ubcc0\uacbd\ub41c \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4. \\\\\nSIL 2 & \ubcc0\uacbd\uc73c\ub85c \uc601\ud5a5\uc744 \ubc1b\ub294 \ubaa8\ub4e0 \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4. \\\\\nSIL 3 \uc774\uc0c1 & \uc804\uccb4 \uc2dc\uc2a4\ud15c\uc744 \uc7acValidation\ud55c\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\uc18c\ud504\ud2b8\uc6e8\uc5b4\uac00 \ud3ec\ud568\ub41c SIL 3 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \uc804\uccb4 \uc7acValidation\uc774 \uc0c1\ub2f9\ud55c \ube44\uc6a9\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \ucd08\uae30\ubd80\ud130 \ubcc0\uacbd\uc601\ud5a5\uc744 \uc81c\ud55c\ud560 \uc218 \uc788\ub3c4\ub85d \ubaa8\ub4c8\ud654\uc640 \ucd94\uc801\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.7 Modifications}\n\n\\subsection{\ub300\uccb4\uae30\ubc95\uacfc \uc808\ucc28}\n\n\ud45c\uc900\uc5d0 \uc9c1\uc811 \ub098\uc5f4\ub418\uc9c0 \uc54a\uc740 \ub300\uccb4\uae30\ubc95\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc \ub2e4\uc74c \uc18d\uc131\uc744 \ud3c9\uac00\ud574\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc644\uc804\uc131\n \\item \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc815\ud655\uc131\n \\item \uc0ac\uc591 \uc624\ub958\uc640 \ubaa8\ud638\uc131\uc758 \ubd80\uc7ac\n \\item \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc758 \uc774\ud574 \uc6a9\uc774\uc131\n \\item \ube44\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \ubd80\uc815\uc801 \uac04\uc12d \ubc29\uc9c0\n \\item Verification\uacfc Validation\uc758 \uae30\ubc18 \uc81c\uacf5\n\\end{itemize}\n\n\uc6d0\ubb38\uc740 \ud3c9\uac00\uc218\uc900\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uba85\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.18\\textwidth} p{0.18\\textwidth} X}\n\\toprule\n\uc801\uc6a9 \uc218\uc900 & \ub4f1\uae09 & \uc758\ubbf8 \\\\\n\\midrule\nSIL 1--2 & R1 & \uc81c\ud55c\ub41c \uac1d\uad00\uc801 \ud569\uaca9\uae30\uc900. \uc608: Black Box Test, Field Trial \\\\\nSIL 3 & R2 & \ub192\uc740 \uc2e0\ub8b0\ub3c4\ub97c \uac16\ub294 \uac1d\uad00\uc801 \uae30\uc900. \uc608: \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\ub97c \uac16\ub294 \uc2dc\ud5d8 \\\\\nSIL 4 & R3 & \uac1d\uad00\uc801\uc774\uace0 \uccb4\uacc4\uc801\uc778 \ub17c\uc99d. \uc608: Formal Proof \\\\\n\ud574\ub2f9 \uc5c6\uc74c & -- & \uc81c\uc548 \uae30\ubc95\uc5d0 \uad00\ub828\ub418\uc9c0 \uc54a\ub294 \uc18d\uc131 \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\sourcepara{4.8 Alternative Techniques and Procedures}\n\n\\subsection{Data-driven System\uc758 \ub124 \uac00\uc9c0 \uc720\ud615}\n\nData-driven System\uc740 \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc5d0 \uc785\ub825\ub418\ub294 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uc751\uc6a9\uae30\ub2a5\uc744 \uad6c\uc131\ud55c\ub2e4. \ubcf5\uc7a1\ub3c4\uc640 \uc0ac\uc6a9\uc790 \uc790\uc720\ub3c4\uc5d0 \ub530\ub77c \uc0dd\uba85\uc8fc\uae30\ub97c Tailoring\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.28\\textwidth} p{0.25\\textwidth} X}\n\\toprule\n\uc720\ud615 & \ub300\ud45c \uc608 & \ud575\uc2ec \ud655\uc778\uc0ac\ud56d \\\\\n\\midrule\nLimited variability configuration \/ Limited application configurability & Smart Sensor, Smart Actuator\uc758 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815 & \uc785\ub825 \ud30c\ub77c\ubbf8\ud130 \uba85\uc138, \uc815\ud655\ud55c \uc801\uc6a9, \ubaa8\ub4e0 \uc870\ud569\uc758 Validation, \ud2b9\uc218 \uc6b4\uc804\ubaa8\ub4dc, \uc778\uc801\uc694\uc778, Interlock \uc720\uc9c0, \uc784\uc758 \uc7ac\uc124\uc815 \ubc29\uc9c0 \\\\\nLimited variability configuration \/ Full application configurability & \ub300\uaddc\ubaa8 \uc815\uc801 \ub370\uc774\ud130\ub85c \uc2dc\uc2a4\ud15c\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0 & \ub370\uc774\ud130 \uc0dd\uc131 \uc790\ub3d9\ud654\ub3c4\uad6c, \ub370\uc774\ud130 \uc77c\uad00\uc131, \uaddc\uce59 \uc900\uc218, \ub370\uc774\ud130 \uc900\ube44\uc2dc\uc2a4\ud15c \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc720\ud6a8\uc131 \\\\\nLimited variability programming \/ Limited application configurability & Function Block, Ladder Logic, Spreadsheet \uae30\ubc18 \uc2dc\uc2a4\ud15c & \uc751\uc6a9\uc694\uad6c\uc0ac\ud56d, \ud5c8\uc6a9 \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569, \ubd80\ubd84\uc9d1\ud569 \uacb0\ud569 \uc124\uacc4\ubc29\ubc95, \uac00\ub2a5\ud55c \uc2dc\uc2a4\ud15c \uc0c1\ud0dc\uc870\ud569\uc744 \ub2e4\ub8e8\ub294 Verification \ucee4\ubc84\ub9ac\uc9c0 \\\\\nLimited variability programming \/ Full application configurability & \uadf8\ub798\ud53d \uc2dc\uc2a4\ud15c, SCADA \uae30\ubc18 Batch Control & \uc751\uc6a9 \uc544\ud0a4\ud14d\ucc98, Template \uc81c\uacf5, \uac1c\ubcc4 Template Verification, \uc644\uc131\ub41c \uc751\uc6a9\uc758 Verification\uacfc Validation \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\sourcepara{4.9 Data-Driven Systems}\n\n\\subsection{\uc815\uc801\ubd84\uc11d}\n\n\uc815\uc801\ubd84\uc11d\uc740 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc18c\uc2a4\ucf54\ub4dc\ub97c \ub300\uc218\uc801\uc73c\ub85c \ubd84\uc11d\ud55c\ub2e4. \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc54c\uace0\ub9ac\uc998\uc758 \uc5f0\uc0b0\uad00\uacc4\ub97c \uac80\ud1a0\ud55c\ub2e4. Part 3\uc758 Table B8\uc740 Data Flow\uc640 Control Flow\ub97c SIL 3\uacfc SIL 4\uc5d0\uc11c Highly Recommended\ub85c \uc81c\uc2dc\ud55c\ub2e4.\n\n\uc815\uc801\ubd84\uc11d\uc758 \ud55c\uacc4\ub3c4 \ubd84\uba85\ud558\ub2e4.\n\n\\begin{itemize}\n \\item \uc5b8\uc5b4\ubcc4 Translator\uc640 \ubd84\uc11d\ub3c4\uad6c\uac00 \ud544\uc694\ud558\ub2e4.\n \\item \uc8fc\ub85c \uc808\ucc28\ud615 \uace0\uae09\uc5b8\uc5b4\uc5d0 \uc801\uc6a9\ub41c\ub2e4.\n \\item PLC \ucf54\ub4dc\ub294 \uc790\ub3d9\ubd84\uc11d \ub300\uc2e0 \uc218\ub3d9 Walkthrough\uc5d0 \uc758\uc874\ud560 \uc218 \uc788\ub2e4.\n \\item \ub17c\ub9ac\uae30\ub2a5\uc740 \ubd84\uc11d\ud558\uc9c0\ub9cc \ud0c0\uc774\ubc0d \ud2b9\uc131\uc740 \uc9c1\uc811 \ub2e4\ub8e8\uc9c0 \ubabb\ud55c\ub2e4.\n \\item \uc815\uc801\ubd84\uc11d\ub9cc\uc73c\ub85c \ucf54\ub4dc\ud488\uc9c8 \uc804\uccb4\ub97c \ubcf4\uc99d\ud558\uc9c0 \ubabb\ud55c\ub2e4.\n\\end{itemize}\n\n\\sourcepara{4.10.1 Static Analysis}\n\n\\subsection{\ud615\uc2dd\uae30\ubc95}\n\n\ud615\uc2dd\uae30\ubc95\uc740 \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \uc815\uc758\ud55c\ub2e4. \uc7a5\uc810\uc740 \uc0dd\uba85\uc8fc\uae30 \ucd08\uae30\uc5d0 \uc7a0\uc7ac\uc624\ub958\ub97c \uc608\ubc29\ud558\uac70\ub098 \ubc1c\uacac\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4. \uc624\ub958\ub97c \uc2dc\uc6b4\uc804\uc774\ub098 \ud604\uc7a5\uc0ac\uc6a9 \ub2e8\uacc4\uc5d0\uc11c \ubc1c\uacac\ud558\ub294 \uac83\ubcf4\ub2e4 \uc218\uc815\ubc94\uc704\uc640 \ube44\uc6a9\uc774 \uc791\ub2e4.\n\n\uadf8\ub7ec\ub098 \ud6c8\ub828\ub41c \uc778\ub825\uacfc \uc801\uc808\ud55c \ub3c4\uad6c\uac00 \ud544\uc694\ud558\uba70, \ubaa8\ub4e0 \uc751\uc6a9\uc5d0 \ubcf4\ud3b8\uc801\uc73c\ub85c \uc801\ud569\ud55c \ud558\ub098\uc758 \ubc29\ubc95\uc740 \uc5c6\ub2e4. \uc6d0\ubb38\uc740 Formal Method\uc640 Formal Proof\ub97c SIL 4\uc5d0\uc11c Highly Recommended, SIL 2\uc640 SIL 3\uc5d0\uc11c Recommended\ub85c \uc124\uba85\ud55c\ub2e4.\n\n\\sourcepara{4.10.2 Use of Formal Methods}\n\n\\subsection{PLC \uc5b8\uc5b4}\n\n\ucd08\uae30\uc758 Ladder Logic\uc740 \ubd84\uae30\ubb38\uc774 \uac70\uc758 \uc5c6\ub294 Limited Variability Language\uc600\uc73c\ubbc0\ub85c \ubaa8\ub4e0 SIL\uc5d0\uc11c \ube44\uad50\uc801 \uc27d\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\uc5c8\ub2e4. \ud604\ub300 PLC\ub294 \uba85\ub839\uc9d1\ud569\uc774 \ud655\ub300\ub418\uace0 \ubd84\uae30\uc640 \ubcf5\uc7a1\ud55c \uae30\ub2a5\uc774 \ucd94\uac00\ub418\uc5c8\ub2e4. \ub530\ub77c\uc11c \ub192\uc740 SIL\uc5d0\uc11c\ub294 \uba85\ub839\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc81c\ud55c\ud574\uc57c \ud55c\ub2e4.\n\nIEC 61131-3 \uc5b8\uc5b4\ub97c \uc0ac\uc6a9\ud560 \ub54c\ub3c4 \uc548\uc804\uad00\ub828 \uc751\uc6a9\uc5d0 \uc801\ud569\ud55c Restricted Subset\uc744 \uc815\uc758\ud574\uc57c \ud55c\ub2e4. Cause and Effect Diagram\uc73c\ub85c Shutdown System\uc744 \uc9c1\uc811 \uad6c\uc131\ud558\ub294 \uc804\uc6a9\uc5b8\uc5b4\ub294 \uc548\uc804\uc751\uc6a9\uc744 \uc704\ud574 \uc81c\ud55c\ub41c \ubd80\ubd84\uc9d1\ud569\uc758 \uc0ac\ub840\uc774\ub2e4.\n\n\\sourcepara{4.10.3 PLCs and their Languages}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc7ac\uc0ac\uc6a9}\n\n\uc7ac\uc0ac\uc6a9\uc740 \uc774\ubbf8 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub41c \uc0ac\uc591, \uc54c\uace0\ub9ac\uc998 \ub610\ub294 \ucf54\ub4dc\ub97c \ud65c\uc6a9\ud55c\ub2e4. \uae30\ub300\ud6a8\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \uae30\uc874 \ucf54\ub4dc\ub098 \uc0ac\uc591\uc5d0 \uc0ac\uc6a9\uc99d\uac70\uac00 \uc788\ub2e4.\n \\item \ud3c9\uade0\ubcf4\ub2e4 \ub9ce\uc740 \uc2dc\ud5d8\uc744 \ubc1b\uc558\uc744 \uc218 \uc788\ub2e4.\n \\item \uc808\uac10\ud55c \uc2dc\uac04\uc744 \ucd94\uac00 \uac1c\ubc1c\uacfc \uc2dc\ud5d8\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.\n \\item \uc2e4\uc81c \uc751\uc6a9\ud658\uacbd\uc5d0\uc11c \uc2dc\ud5d8\ub418\uc5c8\uc744 \uc218 \uc788\ub2e4.\n \\item \uc7ac\uc0ac\uc6a9\uc744 \ubaa9\uc801\uc73c\ub85c \uc124\uacc4\ud55c \uc694\uc18c\ub294 \uacb0\ud569\ub3c4\uac00 \ub0ae\uc744 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4.\n\\end{itemize}\n\n\ubc18\ub300\ub85c \uc0c8\ub85c\uc6b4 \ud658\uacbd\uc5d0\uc11c \uc7a0\uc7ac\uacb0\ud568\uc774 \ub098\ud0c0\ub0a0 \uc218 \uc788\uace0, \ubd88\ud544\uc694\ud55c \uae30\ub2a5 \ub54c\ubb38\uc5d0 \uc218\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc73c\uba70, \ub0b4\ubd80\ub3d9\uc791\uc744 \ucda9\ubd84\ud788 \uc774\ud574\ud558\uc9c0 \ubabb\ud560 \uc218\ub3c4 \uc788\ub2e4. \ub530\ub77c\uc11c \uc7ac\uc0ac\uc6a9\uc758 \uc774\uc810\uc740 \uc801\uc808\ud55c \uc808\ucc28\uc640 \ud1b5\uc81c\uac00 \uc788\uc744 \ub54c\ub9cc \uc5bb\uc744 \uc218 \uc788\ub2e4.\n\n\\sourcepara{4.10.4 Software Reuse}\n\n\\subsection{Software Metrics}\n\nSoftware Metrics\ub294 \ucf54\ub4dc\uc758 \ud06c\uae30, \ubcf5\uc7a1\ub3c4 \ubc0f \uad6c\uc870\ub97c \uce21\uc815\ud55c\ub2e4. \ubd84\uae30\ubb38 \uc218\uac00 \ub300\ud45c\uc801\uc774\ub2e4. \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \ud1b5\uacc4\ub3c4 Metrics\ub77c\ub294 \uc6a9\uc5b4\ub85c \uc0ac\uc6a9\ub41c\ub2e4.\n\n\uc6d0\ubb38\uc740 Metrics\uc758 \uac00\uce58\uc5d0 \ub300\ud574 \uc0c1\ubc18\ub41c \uacac\ud574\uac00 \uc788\ub2e4\uace0 \uc124\uba85\ud55c\ub2e4. \uc7a5\uae30\uac04 \ud2b9\uc815 \uc0b0\uc5c5\uc774\ub098 \uc81c\ud488\uad70\uc5d0\uc11c \uc77c\uad00\ub418\uac8c \uc218\uc9d1\ud558\uba74 \ud604\uc7a5\uace0\uc7a5 \uc131\ub2a5\uacfc\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \uc5f0\uad6c\ud560 \uc218 \uc788\uc9c0\ub9cc, Metrics\ub9cc\uc73c\ub85c \uc548\uc804\ubb34\uacb0\uc131\uc744 \uc9c1\uc811 \uc785\uc99d\ud558\uae30\uc5d0\ub294 \uc544\uc9c1 \uc81c\ud55c\uc774 \uc788\ub2e4.\n\n\\sourcepara{4.10.5 Software Metrics}\n\n\\subsection{\uc801\ud569\uc131 \uc785\uc99d \ud15c\ud50c\ub9bf}\n\nChapter 4\uc758 \ucd5c\uc885\ubaa9\ud45c\ub294 IEC 61508 Part 3\uc758 \uc694\uad6c\uc0ac\ud56d\uc744 \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8 \uc99d\uac70\uc640 \uc5f0\uacb0\ud558\ub294 \uac83\uc774\ub2e4. Evidence\ub780\uc5d0\ub294 \ub2e4\uc74c \ubb38\uc11c\ub97c \uc5f0\uacb0\ud560 \uc218 \uc788\ub2e4.\n\n\\begin{itemize}\n \\item Software Development Plan\n \\item Software Safety Requirements Specification\n \\item \uc544\ud0a4\ud14d\ucc98 \ubc0f \ubaa8\ub4c8 \uc124\uacc4\uc11c\n \\item \ucf54\ub529\ud45c\uc900\uacfc Code Review \uae30\ub85d\n \\item \ud615\uc0c1\ud56d\ubaa9 \ubaa9\ub85d, Baseline \ubc0f \ubcc0\uacbd\ub85c\uadf8\n \\item \ubaa8\ub4c8\uc2dc\ud5d8\u00b7\ud1b5\ud569\uc2dc\ud5d8\u00b7Acceptance Test \uacb0\uacfc\n \\item Validation Plan\uacfc Validation Report\n \\item Safety Manual\n \\item \uc601\ud5a5\ubd84\uc11d\uacfc \uc7ac\uc2dc\ud5d8 \uae30\ub85d\n\\end{itemize}\n\n``Not Applicable''\uc740 \uc815\ub2f9\ud55c \uadfc\uac70\uac00 \uc788\uc744 \ub54c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uc0c1\ub300\uc801\uc73c\ub85c \ub2e8\uc21c\ud55c \uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc694\uc57d \ud15c\ud50c\ub9bf\uc73c\ub85c \ud3c9\uac00\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc0c8\ub85c\uc6b4 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud568\uaed8 \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0 \ud45c\uc900\uc758 \uc0c1\uc138\ud45c\ub97c \uc9c1\uc811 \uc801\uc6a9\ud560 \ud544\uc694\uac00 \uc788\ub2e4.\n\n\\sourcepara{4.11 Conformance Demonstration Template}\n\n% =========================================================\n\\section{\ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac}\n% =========================================================\n\n\\subsection{\uc815\uc758}\n\n\\begin{keybox}{\ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\uc758}\n\ud615\uc0c1\uad00\ub9ac\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \uad00\ub828 \ubb38\uc11c\u00b7\ub370\uc774\ud130\u00b7\ub3c4\uad6c\ub97c \ud615\uc0c1\ud56d\ubaa9\uc73c\ub85c \uc2dd\ubcc4\ud558\uace0, \uc2b9\uc778\ub41c \ubc84\uc804 \uc870\ud569\uc744 \uae30\uc900\uc120\uc73c\ub85c \uc124\uc815\ud558\uba70, \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\uc5ec \uc124\uacc4\ud55c \uc2dc\uc2a4\ud15c, \uc2dc\ud5d8\ud55c \uc2dc\uc2a4\ud15c \ubc0f \uc124\uce58\ub41c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc77c\uc131\uc744 \ubcf4\uc7a5\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.\n\\end{keybox}\n\n\\subsection{\ud615\uc0c1\ud56d\ubaa9\uc758 \ubc94\uc704}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.22\\textwidth} X}\n\\toprule\n\uad6c\ubd84 & \ud615\uc0c1\ud56d\ubaa9 \uc608\uc2dc \\\\\n\\midrule\n\uc694\uad6c\uc0ac\ud56d & Software Safety Requirements Specification, \uc778\ud130\ud398\uc774\uc2a4 \uc694\uad6c\uc0ac\ud56d \\\\\n\uc124\uacc4 & \uc544\ud0a4\ud14d\ucc98, Cause and Effect, State Diagram, \ubaa8\ub4c8 \uc124\uacc4\uc11c \\\\\n\uad6c\ud604 & PLC Project, \uc18c\uc2a4\ucf54\ub4dc, Function Block, Library, \uc2e4\ud589\ud30c\uc77c \\\\\n\uc124\uc815 & \ud30c\ub77c\ubbf8\ud130, Trip \uac12, \ud1b5\uc2e0\uc124\uc815, I\/O Mapping \\\\\n\ub3c4\uad6c\u00b7\ud658\uacbd & Compiler, PLC Engineering Tool, \uc6b4\uc601\uccb4\uc81c, Firmware \\\\\n\uc2dc\ud5d8 & \uc2dc\ud5d8\uc808\ucc28, \uc2dc\ud5d8\ub370\uc774\ud130, Test Harness, \uc2dc\ud5d8\uacb0\uacfc, \uacb0\ud568\ubaa9\ub85d \\\\\n\uc6b4\uc601\uc790\ub8cc & Safety Manual, Release Note, \ubcc0\uacbd\ub85c\uadf8, \ud3d0\uae30\uc0c1\ud0dc \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac \uc808\ucc28}\n\n\\begin{enumerate}\n \\item \\term{\uc2dd\ubcc4}: \ud615\uc0c1\ud56d\ubaa9\ub9c8\ub2e4 \uace0\uc720 ID, \uba85\uce6d, \ubc84\uc804, \uc0c1\ud0dc \ubc0f \ucc45\uc784\uc790\ub97c \ubd80\uc5ec\ud55c\ub2e4.\n \\item \\term{\uae30\uc900\uc120}: \uac80\ud1a0\uc640 \uc2b9\uc778 \ud6c4 \uc694\uad6c\uc0ac\ud56d\u00b7\uc124\uacc4\u00b7\uc2dc\ud5d8 \ub610\ub294 Release \uae30\uc900\uc120\uc744 \uc124\uc815\ud55c\ub2e4.\n \\item \\term{\ucd94\uc801}: \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\uacb0\uacfc\ub97c \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ud55c\ub2e4.\n \\item \\term{\ubcc0\uacbd\ud1b5\uc81c}: \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5, \uc2b9\uc778, \uad6c\ud604, \uc7ac\uc2dc\ud5d8 \ubc0f \uc0c8\ub85c\uc6b4 \ubc84\uc804\uc744 \uae30\ub85d\ud55c\ub2e4.\n \\item \\term{\uc0c1\ud0dc\uae30\ub85d}: \ud604\uc7ac \uc2b9\uc778\uc0c1\ud0dc, \uc2dc\ud5d8\uc0c1\ud0dc, Release \uc0c1\ud0dc \ubc0f \ud3d0\uae30\uc0c1\ud0dc\ub97c \uc720\uc9c0\ud55c\ub2e4.\n \\item \\term{\uac10\uc0ac}: \ubb38\uc11c, \uc800\uc7a5\uc18c, \ube4c\ub4dc\uacb0\uacfc \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \uc2b9\uc778\uae30\uc900\uc120\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n\\end{enumerate}\n\n\\subsection{\ubc84\uc804\uad00\ub9ac\uc640\uc758 \ucc28\uc774}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X}\n\\toprule\n\uac1c\ub150 & \uc758\ubbf8 \\\\\n\\midrule\n\ubc84\uc804\uad00\ub9ac & \ud30c\uc77c\uc758 \uc218\uc815\uc774\ub825, \ucc28\uc774 \ubc0f \ubc84\uc804\uc744 \uc800\uc7a5\ud55c\ub2e4. \\\\\n\ubcc0\uacbd\uad00\ub9ac & \ubcc0\uacbd\uc758 \ud544\uc694\uc131, \uc601\ud5a5, \uc2b9\uc778 \ubc0f \uc7ac\uc2dc\ud5d8\uc744 \ud1b5\uc81c\ud55c\ub2e4. \\\\\nRelease \uad00\ub9ac & \uc2b9\uc778\ub41c \ud615\uc0c1\uc870\ud569\uc744 \uc124\uce58\u00b7\uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc84\uc804\uc73c\ub85c \uacf5\uc2dd \ubc1c\ud589\ud55c\ub2e4. \\\\\n\ud615\uc0c1\uad00\ub9ac & \uc704 \ud65c\ub3d9\uc744 \ud1b5\ud569\ud558\uc5ec \uc2dc\uc2a4\ud15c \uc804\uccb4 \uad6c\uc131\uacfc \uc99d\uac70\uc758 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud55c\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\nGit\uacfc \uac19\uc740 \ub3c4\uad6c\ub294 \ud615\uc0c1\uad00\ub9ac\ub97c \uc9c0\uc6d0\ud558\uc9c0\ub9cc, Git\ub9cc\uc73c\ub85c \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \uc548\uc804\uc601\ud5a5\ubd84\uc11d, \ubcc0\uacbd\uc2b9\uc778, \ub3c4\uad6c\ubc84\uc804, \ud604\uc7a5 \uc124\uce58\ubcf8 \ubc0f Release \uc2b9\uc778\uc744 \uc790\ub3d9 \ubcf4\uc99d\ud558\uc9c0\ub294 \uc54a\ub294\ub2e4.\n\n% =========================================================\n\\section{\ucd5c\uc885 \uc694\uc57d}\n% =========================================================\n\n\\begin{enumerate}\n \\item Chapter 4\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uad00\ub9ac\ud55c\ub2e4.\n \\item \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uacc4\uc0b0\ud558\ub294 \ub300\uc2e0 SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d \uac15\ub3c4\ub97c \uc801\uc6a9\ud55c\ub2e4.\n \\item V-Model\uc740 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a8\ub2e4.\n \\item \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud558\uba70 \uc591\ubc29\ud5a5 \ucd94\uc801\uc774 \uac00\ub2a5\ud574\uc57c \ud55c\ub2e4.\n \\item \uc544\ud0a4\ud14d\ucc98\ub294 \ubaa8\ub4c8\ud654, \uc9c4\ub2e8 \ubc0f \ube44\uac04\uc12d\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.\n \\item \ucf54\ub529\uc740 \uc81c\ud55c\ub41c \uc5b8\uc5b4, \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.\n \\item \ub3c4\uad6c\ub3c4 \uc0ac\uc6a9\uc2e4\uc801, \uc624\ub958\uad00\ub9ac \ub610\ub294 \uc778\uc99d\uc744 \ud1b5\ud574 \uc801\ud569\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.\n \\item \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 \ubc0f Validation\uc758 \uacb0\uacfc\uc5d0\ub294 \ubc84\uc804\uacfc \ubd88\uc77c\uce58 \ucc98\ub9ac\uae30\ub85d\uc774 \ud544\uc694\ud558\ub2e4.\n \\item \ubcc0\uacbd\uc740 \uc601\ud5a5\ubd84\uc11d\uacfc SIL\ubcc4 \uc7ac\uac80\uc99d \ubc94\uc704\ub97c \uc801\uc6a9\ud55c\ub2e4.\n \\item \ucd5c\uc885\uc801\uc73c\ub85c \ud45c\uc900 \uc694\uad6c\uc0ac\ud56d\uacfc \ud504\ub85c\uc81d\ud2b8 Evidence\ub97c \uc5f0\uacb0\ud558\uc5ec \uc801\ud569\uc131\uc744 \uc785\uc99d\ud55c\ub2e4.\n\\end{enumerate}\n\n\\begin{keybox}{\ud55c \ubb38\uc7a5 \uc815\ub9ac}\nChapter 4\ub294 \uc548\uc804\uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc624\ub958\uac00 \uc5c6\ub2e4\uace0 \uc120\uc5b8\ud558\ub294 \ubc29\ubc95\uc774 \uc544\ub2c8\ub77c, \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \ubcc0\uacbd\uae4c\uc9c0 \uccb4\uacc4\uc801\uc778 \uc0dd\uba85\uc8fc\uae30\ub97c \uc801\uc6a9\ud558\uc5ec \uc624\ub958\ub97c \uc608\ubc29\u00b7\ubc1c\uacac\u00b7\ud1b5\uc81c\ud558\uace0, \uadf8 \uc218\ud589\uc99d\uac70\ub85c \ubaa9\ud45c SIL \uc801\ud569\uc131\uc744 \uc785\uc99d\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud55c\ub2e4.\n\\end{keybox}\n\n% =========================================================\n\\section*{\ucc38\uace0\ubb38\ud5cc}\n\\addcontentsline{toc}{section}{\ucc38\uace0\ubb38\ud5cc}\n% =========================================================\n\nDavid J. Smith and Kenneth G. L. Simpson, \\eng{The Safety Critical Systems Handbook: A Straightforward Guide to Functional Safety, IEC 61508, IEC 61511 and Related Guidance}, 4th ed., Butterworth-Heinemann, 2016, Chapter 4, pp. 79--100.\n\n\\end{document}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>IEC 61508 Part 3 \u2014 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c IEC 61508 Part 3 \u00b7 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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{"id":9416,"date":"2026-08-27T21:27:34","date_gmt":"2026-08-27T12:27:34","guid":{"rendered":"https:\/\/now0930.pe.kr\/wordpress\/?p=9416"},"modified":"2026-08-27T21:27:35","modified_gmt":"2026-08-27T12:27:35","slug":"the-safety-critical-systems-chapter4","status":"publish","type":"post","link":"https:\/\/now0930.pe.kr\/wordpress\/the-safety-critical-systems-chapter4\/","title":{"rendered":"The Safety Critical Systems, Chapter4"},"content":{"rendered":"\n\n\n\n \n \n \n IEC 61508 Part 3 \u2014 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c<\/title>\n <style>\n :root {\n --navy: #1c385c;\n --navy-2: #2d537e;\n --ink: #242832;\n --muted: #5f6875;\n --line: #cdd6e1;\n --soft-blue: #e6edf5;\n --soft-gray: #f6f7f9;\n --soft-green: #ebf6ef;\n --soft-orange: #fcf2e5;\n --accent: #a95e16;\n --white: #ffffff;\n --shadow: 0 10px 30px rgba(31, 51, 75, 0.08);\n }\n\n * { box-sizing: border-box; }\n html { scroll-behavior: smooth; }\n body {\n margin: 0;\n color: var(--ink);\n background: #eef2f6;\n font-family: \"Noto Sans KR\", \"Apple SD Gothic Neo\", \"Malgun Gothic\", \"Segoe UI\", sans-serif;\n line-height: 1.72;\n word-break: keep-all;\n overflow-wrap: break-word;\n }\n a { color: var(--navy-2); text-decoration-thickness: 1px; text-underline-offset: 3px; }\n h1, h2, h3, h4 { color: var(--navy); line-height: 1.34; letter-spacing: -0.02em; }\n h1 { font-size: clamp(2rem, 4vw, 3.3rem); margin: 0 0 0.5rem; }\n h2 {\n font-size: clamp(1.55rem, 2.4vw, 2.15rem);\n margin: 4.2rem 0 1.3rem;\n padding-bottom: 0.55rem;\n border-bottom: 3px solid var(--navy);\n }\n h3 { font-size: clamp(1.22rem, 1.8vw, 1.55rem); margin: 2.5rem 0 0.8rem; }\n h4 { font-size: 1.08rem; margin: 1.5rem 0 0.45rem; }\n p { margin: 0.65rem 0; }\n ul, ol { padding-left: 1.35rem; }\n li + li { margin-top: 0.25rem; }\n strong { color: #18314f; }\n code, .mono {\n font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, \"Liberation Mono\", monospace;\n font-size: 0.94em;\n }\n\n .page {\n width: min(1500px, calc(100% - 28px));\n margin: 18px auto 48px;\n background: var(--white);\n border: 1px solid #dfe5ec;\n border-radius: 18px;\n box-shadow: var(--shadow);\n overflow: hidden;\n }\n .hero {\n color: var(--white);\n padding: clamp(2.2rem, 5vw, 5rem) clamp(1.2rem, 5vw, 5.5rem);\n background:\n radial-gradient(circle at 84% 18%, rgba(255,255,255,0.18), transparent 24%),\n linear-gradient(125deg, #132a46 0%, #1c385c 48%, #2d537e 100%);\n }\n .hero .eyebrow {\n display: inline-block;\n font-weight: 700;\n letter-spacing: 0.09em;\n text-transform: uppercase;\n color: #d5e4f5;\n margin-bottom: 0.9rem;\n }\n .hero h1 { color: var(--white); max-width: 1080px; }\n .hero .subtitle {\n max-width: 1050px;\n margin: 1rem 0 0;\n font-size: clamp(1rem, 1.5vw, 1.24rem);\n color: #e7eef7;\n }\n .toolbar {\n display: flex;\n gap: 0.7rem;\n flex-wrap: wrap;\n margin-top: 1.8rem;\n }\n .button {\n appearance: none;\n border: 1px solid rgba(255,255,255,0.45);\n color: #fff;\n background: rgba(255,255,255,0.10);\n border-radius: 10px;\n padding: 0.65rem 0.95rem;\n cursor: pointer;\n font: inherit;\n font-weight: 700;\n }\n .button:hover { background: rgba(255,255,255,0.20); }\n\n main { padding: clamp(1.4rem, 4vw, 4.8rem); }\n .lead {\n font-size: 1.08rem;\n color: #39414d;\n }\n .box {\n margin: 1.2rem 0;\n padding: 1rem 1.15rem;\n border: 1px solid var(--line);\n border-left: 6px solid var(--navy);\n border-radius: 10px;\n background: var(--soft-blue);\n }\n .box.warning { background: var(--soft-orange); border-left-color: var(--accent); }\n .box.practice { background: var(--soft-green); border-left-color: var(--navy-2); }\n .box.summary { background: var(--soft-gray); border-left-color: #606976; }\n .box-title { display: block; margin-bottom: 0.25rem; font-weight: 800; color: var(--navy); }\n .warning .box-title { color: #83460f; }\n\n .toc {\n margin: 1.6rem 0 2.5rem;\n padding: 1.25rem;\n border: 1px solid var(--line);\n border-radius: 12px;\n background: #fbfcfe;\n }\n .toc h2 { margin: 0 0 0.8rem; font-size: 1.35rem; border-bottom: 0; padding: 0; }\n .toc-grid {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));\n gap: 0.65rem;\n }\n .toc a {\n display: block;\n text-decoration: none;\n padding: 0.7rem 0.8rem;\n border: 1px solid #d9e2ec;\n border-radius: 8px;\n background: #fff;\n font-weight: 700;\n }\n .toc a:hover { border-color: var(--navy-2); background: var(--soft-blue); }\n\n .flow {\n display: flex;\n align-items: stretch;\n gap: 0.5rem;\n flex-wrap: wrap;\n margin: 1.4rem 0;\n }\n .flow .node {\n flex: 1 1 150px;\n min-width: 130px;\n display: flex;\n align-items: center;\n justify-content: center;\n text-align: center;\n padding: 0.8rem 0.65rem;\n border: 1px solid var(--navy);\n border-radius: 9px;\n background: var(--soft-blue);\n font-weight: 700;\n }\n .flow .arrow {\n flex: 0 0 auto;\n display: flex;\n align-items: center;\n justify-content: center;\n font-size: 1.35rem;\n color: var(--navy-2);\n }\n .vmodel {\n display: grid;\n grid-template-columns: minmax(250px, 1fr) 90px minmax(250px, 1fr);\n gap: 0.7rem 1rem;\n align-items: center;\n margin: 1.4rem 0;\n }\n .v-left, .v-right {\n padding: 0.8rem;\n border-radius: 9px;\n border: 1px solid var(--line);\n background: #fff;\n font-weight: 700;\n }\n .v-left { border-left: 5px solid var(--navy); }\n .v-right { border-left: 5px solid var(--accent); }\n .v-match { text-align: center; color: var(--muted); font-size: 0.9rem; font-weight: 700; }\n\n .table-wrap {\n width: 100%;\n overflow-x: auto;\n margin: 1rem 0 1.4rem;\n border: 1px solid var(--line);\n border-radius: 10px;\n }\n table {\n width: 100%;\n border-collapse: collapse;\n min-width: 720px;\n background: #fff;\n }\n th, td {\n padding: 0.75rem 0.8rem;\n text-align: left;\n vertical-align: top;\n border-bottom: 1px solid #dce3eb;\n }\n th { background: var(--soft-blue); color: var(--navy); font-weight: 800; }\n tr:last-child td { border-bottom: 0; }\n td:first-child { font-weight: 700; color: #263c58; }\n\n .keyword-grid {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n gap: 0.85rem;\n }\n .keyword-card {\n border: 1px solid var(--line);\n border-radius: 10px;\n background: #fff;\n padding: 0.95rem 1rem;\n }\n .keyword-card dt { font-weight: 800; color: var(--navy); margin-bottom: 0.25rem; }\n .keyword-card dd { margin: 0; color: #3f4752; }\n\n .source-note {\n display: block;\n margin-top: 0.65rem;\n color: var(--muted);\n font-size: 0.88rem;\n font-style: italic;\n }\n .definition {\n margin: 1rem 0;\n padding: 1.05rem 1.1rem;\n border: 2px solid var(--navy);\n border-radius: 10px;\n background: var(--soft-blue);\n font-size: 1.04rem;\n font-weight: 650;\n }\n .example {\n margin: 0.8rem 0;\n padding: 0.85rem 1rem;\n background: #f4f6f8;\n border: 1px solid #d9e0e8;\n border-radius: 8px;\n white-space: pre-line;\n }\n .back-top {\n display: inline-block;\n margin-top: 1.4rem;\n font-size: 0.9rem;\n }\n footer {\n padding: 1.3rem clamp(1.4rem, 4vw, 4.8rem) 2.2rem;\n color: var(--muted);\n background: #f7f9fb;\n border-top: 1px solid var(--line);\n }\n\n @media (max-width: 760px) {\n .page { width: 100%; margin: 0; border-radius: 0; border-left: 0; border-right: 0; }\n main { padding: 1.1rem; }\n .hero { padding: 2rem 1.1rem; }\n .vmodel { grid-template-columns: 1fr; }\n .v-match { padding: 0.15rem 0; }\n .flow .arrow { flex-basis: 100%; transform: rotate(90deg); height: 16px; }\n .toc-grid { grid-template-columns: 1fr; }\n table { min-width: 640px; }\n }\n\n @media print {\n body { background: #fff; font-size: 10.5pt; }\n .page { width: 100%; margin: 0; border: 0; border-radius: 0; box-shadow: none; }\n .hero { background: #fff !important; color: #000; padding: 0 0 1rem; border-bottom: 2px solid #000; }\n .hero h1, .hero .subtitle, .hero .eyebrow { color: #000; }\n .toolbar { display: none; }\n main { padding: 0; }\n h2 { page-break-before: auto; }\n h2, h3 { break-after: avoid; }\n .box, .table-wrap, .keyword-card, .definition { break-inside: avoid; }\n a { color: #000; text-decoration: none; }\n .back-top { display: none; }\n footer { padding: 1rem 0 0; background: #fff; }\n }\n <\/style>\n<\/head>\n<body id=\"top\">\n <article class=\"page\">\n <header class=\"hero\">\n <span class=\"eyebrow\">IEC 61508 Part 3 \u00b7 Chapter 4<\/span>\n <h1>\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c \uc815\ub9ac<\/h1>\n <p class=\"subtitle\"><em>The Safety Critical Systems Handbook<\/em> Chapter 4\uc758 \uc21c\uc11c\uc640 \uc6a9\uc5b4\ub97c \uc720\uc9c0\ud558\uc5ec, \uccb4\uacc4\uc801 \uace0\uc7a5 \uad00\ub9ac\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \ud55c \ud654\uba74\uc758 \ub2e8\uc77c \ud504\ub808\uc784\uc73c\ub85c \uc815\ub9ac\ud55c \ud559\uc2b5 \ub178\ud2b8\uc774\ub2e4.<\/p>\n <div class=\"toolbar\">\n <button class=\"button\" type=\"button\" onclick=\"window.print()\">\uc778\uc1c4\u00b7PDF \uc800\uc7a5<\/button>\n <button class=\"button\" type=\"button\" onclick=\"document.getElementById('toc').scrollIntoView()\">\ubaa9\ucc28\ub85c \uc774\ub3d9<\/button>\n <\/div>\n <\/header>\n\n <main>\n <div class=\"box summary\">\n <span class=\"box-title\">Chapter 4\uc758 \ud575\uc2ec<\/span>\n Chapter 4\ub294 IEC 61508 Part 3\uc758 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\uc744 \uc124\uba85\ud55c\ub2e4. \ud575\uc2ec \ub300\uc0c1\uc740 \ub79c\ub364 \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5\uc774 \uc544\ub2c8\ub77c \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8 \ubc0f \ubcc0\uacbd \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 <strong>\uccb4\uacc4\uc801 \uace0\uc7a5<\/strong>\uc774\ub2e4. \ub530\ub77c\uc11c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc740 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uc608\uce21\ud558\uc5ec \uc785\uc99d\ud558\uc9c0 \uc54a\ub294\ub2e4. \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30, \uc124\uacc4\uae30\ubc95, \uac80\ud1a0, \uc2dc\ud5d8, \ud615\uc0c1\uad00\ub9ac \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uc608\ubc29\ud558\uace0 \ubc1c\uacac\ud55c\ub2e4.\n <\/div>\n\n <div class=\"box\">\n <span class=\"box-title\">\uc774 \ubb38\uc11c\uc758 \uad6c\uc131<\/span>\n <ol>\n <li>\ud575\uc2ec \ud0a4\uc6cc\ub4dc\ub97c \uc815\uc758\ud55c\ub2e4.<\/li>\n <li>\ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4\ub97c V-Model\uacfc \uc0dd\uba85\uc8fc\uae30 \uad00\uc810\uc5d0\uc11c \uc815\ub9ac\ud55c\ub2e4.<\/li>\n <li>\uc6d0\ubb38\uc758 \ud750\ub984\uc5d0 \ub530\ub77c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \uc124\uba85\ud55c\ub2e4.<\/li>\n <li>\ud615\uc0c1\uad00\ub9ac\ub97c \ubcc4\ub3c4\ub85c \uc815\ub9ac\ud558\uc5ec \uae30\uc900\uc120, \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, Release\uc758 \uad00\uacc4\ub97c \uba85\ud655\ud788 \ud55c\ub2e4.<\/li>\n <\/ol>\n <\/div>\n\n <nav class=\"toc\" id=\"toc\" aria-label=\"\ubb38\uc11c \ubaa9\ucc28\">\n <h2>\ubaa9\ucc28<\/h2>\n <div class=\"toc-grid\">\n <a href=\"#essence\">1. Chapter 4\uc758 \ubcf8\uc9c8<\/a>\n <a href=\"#keywords\">2. \ud0a4\uc6cc\ub4dc \uc815\uc758<\/a>\n <a href=\"#relations\">3. \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4<\/a>\n <a href=\"#flow-explanation\">4. \uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85<\/a>\n <a href=\"#configuration\">5. \ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac<\/a>\n <a href=\"#summary\">6. \ucd5c\uc885 \uc694\uc57d<\/a>\n <a href=\"#references\">7. \ucc38\uace0\ubb38\ud5cc<\/a>\n <\/div>\n <\/nav>\n\n <section id=\"essence\">\n <h2>1. Chapter 4\uc758 \ubcf8\uc9c8<\/h2>\n <h3>1.1 \uc801\uc6a9 \ubc94\uc704<\/h3>\n <p>IEC 61508 Part 3\uc740 \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac1c\ubc1c\uc744 \ub2e4\ub8ec\ub2e4. \uc801\uc6a9 \ub300\uc0c1\uc740 \ud06c\uac8c \ub2e4\uc74c \ub450 \uacbd\uc6b0\ub85c \uad6c\ubd84\ub41c\ub2e4.<\/p>\n <ul>\n <li><strong>Embedded software design:<\/strong> \ud558\ub4dc\uc6e8\uc5b4\uc640 \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub41c \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0<\/li>\n <li><strong>Application software:<\/strong> \uac80\uc99d\ub41c PLC \ud50c\ub7ab\ud3fc \ub4f1\uc5d0 \uc751\uc6a9 \ub85c\uc9c1\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0<\/li>\n <\/ul>\n <p>\ub450 \uacbd\uc6b0 \ubaa8\ub450 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc0dd\uba85\uc8fc\uae30\uac00 \ud544\uc694\ud558\ub2e4. \ub2e4\ub9cc \uc0dd\uba85\uc8fc\uae30\uc758 \ub2e8\uacc4 \uc218\uc640 \uac80\uc99d \uac15\ub3c4\ub294 \ubaa9\ud45c SIL\uacfc \uc2dc\uc2a4\ud15c \ubcf5\uc7a1\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4.<\/p>\n\n <h3>1.2 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc758 \uc758\ubbf8<\/h3>\n <p>\ud558\ub4dc\uc6e8\uc5b4 \uc2e0\ub8b0\ub3c4 \uc608\uce21\uc740 \uc608\uc0c1 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc815\uc131\uc801 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\uace0 \ud574\uc11c \uccb4\uacc4\uc801 \uace0\uc7a5\uc758 \uace0\uc7a5\ub960\uc774 \uacc4\uc0b0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.<\/p>\n <div class=\"box warning\">\n <span class=\"box-title\">\uc815\ub7c9\uc801 \uc624\ud574 \ubc29\uc9c0<\/span>\n \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\ub294 \uc0ac\uc2e4\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc218\uce58\ub85c \uc9c1\uc811 \uc785\uc99d\ud55c \uac83\uc774 \uc544\ub2c8\ub2e4. \ud604\uc7ac\uc758 \uae30\uc220\uc218\uc900\uc5d0\uc11c \ud574\ub2f9 SIL\uc5d0 \uc801\uc808\ud55c \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d\uc218\ub2e8\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \ucda9\ubd84\ud788 \uc5b5\uc81c\ud588\ub2e4\uace0 \ud310\ub2e8\ud558\ub294 \uac83\uc774\ub2e4.\n <\/div>\n\n <h3>1.3 \uc804\uccb4 \ud750\ub984<\/h3>\n <div class=\"flow\" aria-label=\"Chapter 4 \uc804\uccb4 \ud750\ub984\">\n <div class=\"node\">\uae30\ub2a5\uc548\uc804\uad00\ub9ac<br>\uac1c\ubc1c\uacc4\ud68d<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc18c\ud504\ud2b8\uc6e8\uc5b4<br>\uc548\uc804\uc694\uad6c\uc0ac\ud56d<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc544\ud0a4\ud14d\ucc98\uc640<br>\uc0c1\uc138\uc124\uacc4<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ucf54\ub529\uacfc<br>\ub3c4\uad6c \ud1b5\uc81c<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ubaa8\ub4c8\u00b7\ud1b5\ud569\uc2dc\ud5d8<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc804\uccb4 \ud1b5\ud569\uacfc<br>Validation<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Safety Manual<br>\ubcc0\uacbd\uad00\ub9ac<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc801\ud569\uc131 \uc785\uc99d<br>Evidence<\/div>\n <\/div>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"keywords\">\n <h2>2. \ud0a4\uc6cc\ub4dc \uc815\uc758<\/h2>\n <h3>2.1 \uae30\ubcf8 \uac1c\ub150<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>IEC 61508 Part 3<\/dt><dd>\uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8, Validation, \ubcc0\uacbd \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \ub2e4\ub8e8\ub294 \uaddc\uc815\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uccb4\uacc4\uc801 \uace0\uc7a5<\/dt><dd>\uc694\uad6c\uc0ac\ud56d \uc624\ub958, \uc124\uacc4\uacb0\ud568, \ucf54\ub529\uc624\ub958, \ub3c4\uad6c\uc624\ub958 \ub610\ub294 \ubcc0\uacbd\uc624\ub958\ucc98\ub7fc \ud2b9\uc815 \uc870\uac74\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uace0\uc7a5\uc774\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd80\ud488 \uace0\uc7a5\ub960 \ubc29\uc2dd\uc73c\ub85c \uc9c1\uc811 \uc608\uce21\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>SIL<\/dt><dd>Safety Integrity Level\uc758 \uc57d\uc5b4\uc774\ub2e4. \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c\ub294 SIL\uc774 \ub192\uc544\uc9c8\uc218\ub85d \uc694\uad6c\uc0ac\ud56d \ud45c\ud604, \uc124\uacc4\uae30\ubc95, \uc2dc\ud5d8\ubc94\uc704, \ub3c5\ub9bd\uc131 \ubc0f \ubb38\uc11c\ud654\uac00 \uac15\ud654\ub41c\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4<\/dt><dd>\uac80\uc99d\ub41c \ud50c\ub7ab\ud3fc \uc704\uc5d0 \ud2b9\uc815 \uacf5\uc815\uc774\ub098 \uc548\uc804\uae30\ub2a5\uc744 \uad6c\ud604\ud558\ub294 \ub85c\uc9c1\uc774\ub2e4. PLC \ub798\ub354\uc640 Function Block \ub4f1\uc774 \ub300\ud45c\uc801\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4<\/dt><dd>\ud558\ub4dc\uc6e8\uc5b4 \uae30\ub2a5\uacfc \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub418\uc5b4 \uac1c\ubc1c\ub418\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc774\ub2e4. \uace0\uae09\uc5b8\uc5b4\uc640 \uc5b4\uc148\ube14\ub7ec\uac00 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\uba70 \ub354 \uc0c1\uc138\ud55c \uc124\uacc4\uc640 \ubd84\uc11d\uc774 \ud544\uc694\ud558\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.2 \uc0dd\uba85\uc8fc\uae30\uc640 \uad00\ub9ac<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>Software Development Plan<\/dt><dd>\uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\uad00\ub9ac, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \uc815\uc758\ud558\ub294 \uacc4\ud68d\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>V-Model<\/dt><dd>\uc694\uad6c\uc0ac\ud56d\uc5d0\uc11c \ucf54\ub4dc\ub85c \uad6c\uccb4\ud654\ud558\uace0, \ucf54\ub4dc\uc5d0\uc11c \ubaa8\ub4c8\u00b7\ud1b5\ud569\u00b7\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc2dc\ud5d8\uc73c\ub85c \uc62c\ub77c\uac00\uba70 \uac01 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a4\ub294 \uc0dd\uba85\uc8fc\uae30 \ubaa8\ub378\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Verification<\/dt><dd>\uac01 \ub2e8\uacc4\uc758 \uc0b0\ucd9c\ubb3c\uc774 \uc774\uc804 \ub2e8\uacc4\uc758 \uc785\ub825\uacfc \uc694\uad6c\uc0ac\ud56d\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\uc871\ud558\ub294\uc9c0 \uac80\ud1a0\ud558\uace0 \uc2dc\ud5d8\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Validation<\/dt><dd>\ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uba70 \ud544\uc694\ud55c \uc808\ucc28\uac00 \uc218\ud589\ub418\uc5c8\ub294\uc9c0\ub97c \ucd5c\uc885 \ud655\uc778\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ud615\uc0c1\uad00\ub9ac<\/dt><dd>\ud615\uc0c1\ud56d\ubaa9\uc744 \uc2dd\ubcc4\ud558\uace0 \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\uba70 \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Baseline<\/dt><dd>\uac80\ud1a0\uc640 \uc2b9\uc778\uc774 \uc644\ub8cc\ub418\uc5b4 \uc774\ud6c4 \ubcc0\uacbd\uc774 \uacf5\uc2dd \ubcc0\uacbd\uc808\ucc28\ub97c \ud1b5\ud574\uc11c\ub9cc \ud5c8\uc6a9\ub418\ub294 \ud615\uc0c1\uc758 \uae30\uc900\uc810\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ucd94\uc801\uc131<\/dt><dd>\uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\ud56d\ubaa9 \ubc0f \uc2dc\ud5d8\uacb0\uacfc\uc640 \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ub418\ub294 \uc131\uc9c8\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.3 \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>Software Safety Requirements Specification<\/dt><dd>\uc548\uc804\uae30\ub2a5\uacfc \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud615\ud0dc\ub85c \uc815\uc758\ud558\ub294 \ubb38\uc11c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubc18\uc815\ud615 \uae30\ubc95<\/dt><dd>Logic Diagram, Cause and Effect Chart, State Transition Diagram, Truth Table, Data Flow Diagram \ub4f1 \uc790\uc5f0\uc5b4\ubcf4\ub2e4 \uad6c\uc870\ud654\ub41c \ud45c\ud604\ubc29\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8\ud654<\/dt><dd>\uae30\ub2a5\uc744 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ub2e8\uc704\ub85c \ubd84\ub9ac\ud558\uc5ec \ubcf5\uc7a1\ub3c4\ub97c \ub0ae\ucd94\uace0 \uc2dc\ud5d8\uacfc \ubcc0\uacbd\uc744 \uc6a9\uc774\ud558\uac8c \ud558\ub294 \uc124\uacc4\uc6d0\uce59\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ube44\uac04\uc12d\uc131<\/dt><dd>\ube44\uc548\uc804 \uae30\ub2a5\uc758 \uc624\ub958\ub098 \uc790\uc6d0\uc0ac\uc6a9\uc774 \uc548\uc804\uad00\ub828 \uae30\ub2a5\uc758 \uc218\ud589\uc744 \ubc29\ud574\ud558\uc9c0 \uc54a\ub294 \uc131\uc9c8\uc774\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \uc2dc\uac04, \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c\ub97c \uac80\ud1a0\ud55c\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d<\/dt><dd>\uc785\ub825 \ubc94\uc704, \ud0c0\ub2f9\uc131, \uc0c1\ud0dc\uc804\uc774 \ubc0f \uc624\ub958\uc870\uac74\uc744 \uac80\uc0ac\ud558\uc5ec \ube44\uc815\uc0c1 \uc0c1\ud669\uc744 \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\ub294 \ucf54\ub529\ubc29\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569<\/dt><dd>\ub3d9\uc801 \uac1d\uccb4, \ubb34\uc870\uac74 \ubd84\uae30, \uacfc\ub3c4\ud55c \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130 \ub4f1 \uac80\uc99d\uc744 \uc5b4\ub835\uac8c \ud558\ub294 \uae30\ub2a5\uc744 \uc81c\ud55c\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uaddc\uce59\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc9c0\uc6d0\ub3c4\uad6c<\/dt><dd>Compiler, PLC Engineering Tool, Code Generator, \uc815\uc801\ubd84\uc11d \ub3c4\uad6c, PFD \uacc4\uc0b0 \ud504\ub85c\uadf8\ub7a8 \ub4f1 \uc0dd\uba85\uc8fc\uae30 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ub3c4\uad6c\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n\n <h3>2.4 \uc2dc\ud5d8, \uc7ac\uc0ac\uc6a9 \ubc0f \uc801\ud569\uc131 \uc785\uc99d<\/h3>\n <dl class=\"keyword-grid\">\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8\uc2dc\ud5d8<\/dt><dd>\uac1c\ubcc4 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc218\ud589\ud558\uace0 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8<\/dt><dd>\ubaa8\ub4c8\uc744 \ub2e8\uacc4\uc801\uc73c\ub85c \uacb0\ud569\ud558\uc5ec \uae30\ub2a5, \uc778\ud130\ud398\uc774\uc2a4, Black Box \ub3d9\uc791 \ubc0f \uc131\ub2a5\uc744 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0<\/dt><dd>\uc694\uad6c\uc0ac\ud56d, \ucf54\ub4dc\uacbd\ub85c, \uacbd\uacc4\uc870\uac74 \ub610\ub294 \uc0c1\ud0dc\uc870\ud569\uc774 \uc2dc\ud5d8\uc73c\ub85c \uc5bc\ub9c8\ub098 \ud655\uc778\ub418\uc5c8\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Safety Manual<\/dt><dd>\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uae30\ub2a5, \uad6c\uc131, \uac00\uc815, \uc124\uce58\uc870\uac74, \ub3c4\uad6c\ubc84\uc804, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d \ubc0f \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\uc744 \uc81c\uacf5\ud558\ub294 \ubb38\uc11c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Trusted\/Verified Module<\/dt><dd>\uc774\uc804\uc5d0 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub418\uc5c8\uac70\ub098 \uc720\uc0ac\ud55c \uc6a9\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ub41c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774\ub2e4. \ud604\uc7ac \ud658\uacbd\uc5d0 \ub300\ud55c \uc801\ud569\uc131 \uac80\ud1a0\ub294 \ubcc4\ub3c4\ub85c \ud544\uc694\ud558\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>Data-driven System<\/dt><dd>\uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc758 \uae30\ub2a5\uc744 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uad6c\uc131\ud558\uc5ec \uc751\uc6a9\uae30\ub2a5\uc744 \ub9cc\ub4dc\ub294 \uc2dc\uc2a4\ud15c\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc815\uc801\ubd84\uc11d<\/dt><dd>\ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc5f0\uc0b0\uad00\uacc4\ub97c \ubd84\uc11d\ud558\ub294 \uae30\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\ud615\uc2dd\uae30\ubc95<\/dt><dd>\uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \ud45c\ud604\ud558\uace0 \uac80\uc99d\ud558\ub294 \uae30\ubc95\uc774\ub2e4.<\/dd><\/div>\n <div class=\"keyword-card\"><dt>\uc801\ud569\uc131 \uc785\uc99d<\/dt><dd>\ud45c\uc900\uc758 \uac01 \uc694\uad6c\uc0ac\ud56d\uacfc \uc774\ub97c \ucda9\uc871\ud558\ub294 \uacc4\ud68d\uc11c, \uc0ac\uc591\uc11c, \uc124\uacc4\uc11c, \uac80\ud1a0\uc11c \ubc0f \uc2dc\ud5d8\uc131\uc801\uc11c\ub97c \uc5f0\uacb0\ud558\ub294 \ubb38\uc11c\ud654 \ud65c\ub3d9\uc774\ub2e4.<\/dd><\/div>\n <\/dl>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"relations\">\n <h2>3. \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4<\/h2>\n <h3>3.1 V-Model \uad00\uacc4<\/h3>\n <div class=\"vmodel\" role=\"figure\" aria-label=\"V-Model \uac1c\ubc1c\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4 \ub300\uc751\">\n <div class=\"v-left\">\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d<\/div><div class=\"v-match\">\u2194 \uc694\uad6c\uc0ac\ud56d \ucda9\uc871<\/div><div class=\"v-right\">\uc804\uccb4\uc2dc\ud5d8\u00b7Validation<\/div>\n <div class=\"v-left\">\uc544\ud0a4\ud14d\ucc98\u00b7\uc911\uac04\uc124\uacc4<\/div><div class=\"v-match\">\u2194 \uad6c\uc870\u00b7\uc778\ud130\ud398\uc774\uc2a4<\/div><div class=\"v-right\">\ud1b5\ud569\uc2dc\ud5d8<\/div>\n <div class=\"v-left\">\ubaa8\ub4c8 \uc0c1\uc138\uc124\uacc4<\/div><div class=\"v-match\">\u2194 \ubaa8\ub4c8 \uae30\ub2a5<\/div><div class=\"v-right\">\ubaa8\ub4c8\uc2dc\ud5d8<\/div>\n <div class=\"v-left\">\ucf54\ub529<\/div><div class=\"v-match\">\u2192 \uc2e4\ud589 \uac00\ub2a5\ud55c \uad6c\ud604<\/div><div class=\"v-right\">\uc2dc\ud5d8\uc99d\uac70 \ucd95\uc801<\/div>\n <\/div>\n <div class=\"box\">\n <span class=\"box-title\">V-Model\uc758 \ud575\uc2ec<\/span>\n V-Model\uc740 \ucf54\ub529 \ud6c4 \uc2dc\ud5d8\uc744 \uc2dc\uc791\ud558\ub294 \ubc29\uc2dd\uc774 \uc544\ub2c8\ub2e4. \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc791\uc131\ud560 \ub54c \ub300\uc751 \uc2dc\ud5d8\ubc29\ubc95\uacfc \ud569\uaca9\uae30\uc900\uc744 \ud568\uaed8 \uc815\ud558\uace0, \uac01 \uac1c\ubc1c\ub2e8\uacc4\uc758 \uacb0\uacfc\ub97c \ub300\uc751 \uc2dc\ud5d8\ub2e8\uacc4\uc5d0\uc11c \ud655\uc778\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.\n <\/div>\n\n <h3>3.2 Verification\uacfc Validation\uc758 \ucc28\uc774<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uad6c\ubd84<\/th><th>Verification<\/th><th>Validation<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\ud575\uc2ec \uc9c8\ubb38<\/td><td>\uac01 \uc0b0\ucd9c\ubb3c\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\ub4e4\uc5c8\ub294\uac00?<\/td><td>\uc644\uc131\ub41c \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\uc801\uc744 \ub9cc\uc871\ud558\ub294\uac00?<\/td><\/tr>\n <tr><td>\uc801\uc6a9 \uc2dc\uc810<\/td><td>\uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \ubaa8\ub4c8\ud1b5\ud569 \ub4f1 \uac01 \ub2e8\uacc4<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \ud1b5\ud569 \ud6c4 \ucd5c\uc885 \ud655\uc778<\/td><\/tr>\n <tr><td>\uc8fc\uc694 \ubc29\ubc95<\/td><td>Review, Code Review, \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8<\/td><td>Acceptance Test, \uc694\uad6c\uc0ac\ud56d\ubcc4 \uc885\ud569 \ud655\uc778, \uc808\ucc28 \uc900\uc218 \ud655\uc778<\/td><\/tr>\n <tr><td>\uc8fc\uc694 \uc99d\uac70<\/td><td>\uac80\ud1a0\uae30\ub85d, \ubaa8\ub4c8\uc2dc\ud5d8\uc131\uc801\uc11c, \ud1b5\ud569\uc2dc\ud5d8\uc131\uc801\uc11c<\/td><td>Validation Plan, \ucd5c\uc885 \uc2dc\ud5d8\uacb0\uacfc, \ubd88\uc77c\uce58 \uc885\uacb0\uae30\ub85d<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>3.3 SIL \uc0c1\uc2b9\uc5d0 \ub530\ub978 \uc694\uad6c\uc218\uc900<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\ud56d\ubaa9<\/th><th>SIL 1\u20132<\/th><th>SIL 3<\/th><th>SIL 4<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\uc694\uad6c\uc0ac\ud56d \ud45c\ud604<\/td><td>\ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95<\/td><td>\ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95<\/td><td>\ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uacfc \ud575\uc2ec\ubd80\ubd84\uc758 \ucef4\ud4e8\ud130 \uc9c0\uc6d0<\/td><\/tr>\n <tr><td>\ucf54\ub529<\/td><td>\uad6c\uc870\ud654\u00b7\uc81c\ud55c\ub41c \uc5b8\uc5b4, SIL 2 \uc774\uc0c1 \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30 \uae08\uc9c0<\/td><td>\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d, \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130\u00b7\uc7ac\uadc0 \uc81c\ud55c \uac15\ud654<\/td><td>SIL 3 \uc218\uc900\uc5d0 \ub354 \uc5c4\uaca9\ud55c \uc801\uc6a9<\/td><\/tr>\n <tr><td>\uc2dc\ud5d8<\/td><td>\uacbd\uacc4\uac12\uc2dc\ud5d8, \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8<\/td><td>\uc911\uc694 \uc0ac\uac74\uc758 Cause-Consequence \uae30\ubc18 \uc2dc\ud5d8 \ucd94\uac00<\/td><td>SIL 3 \uc218\uc900\uc5d0 \ub354 \ub192\uc740 \uc5c4\uaca9\uc131<\/td><\/tr>\n <tr><td>Validation<\/td><td>SIL 2 \uc774\uc0c1 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c \uc81c\uc2dc<\/td><td>\uc815\ud655\uc131\u00b7\uc77c\uad00\uc131\u00b7\ucf54\ub529\uaddc\uce59 \uc900\uc218\uc758 \uac15\ud654\ub41c \ud655\uc778<\/td><td>\ud615\uc2dd\uae30\ubc95 \ub4f1\uc744 \ud3ec\ud568\ud55c \ucd5c\uace0 \uc218\uc900\uc758 \ud655\uc778<\/td><\/tr>\n <tr><td>\ubcc0\uacbd \ud6c4<\/td><td>SIL 1 \ubcc0\uacbd \ubaa8\ub4c8, SIL 2 \uc601\ud5a5 \ubaa8\ub4c8 \uc7ac\uac80\uc99d<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation\uacfc \ub354 \uc5c4\uaca9\ud55c \uc99d\uac70<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>3.4 \ud615\uc0c1\uad00\ub9ac\uc640 \uc2dc\ud5d8\uc99d\uac70\uc758 \uad00\uacc4<\/h3>\n <div class=\"flow\">\n <div class=\"node\">\ud615\uc0c1\ud56d\ubaa9 \uc2dd\ubcc4<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Baseline \uc2b9\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\uc2b9\uc778 \ud615\uc0c1 \uc2dc\ud5d8<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">Release \uc2b9\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ud604\uc7a5 \uc124\uce58\ubcf8 \ud655\uc778<\/div><div class=\"arrow\">\u2192<\/div>\n <div class=\"node\">\ubcc0\uacbd\uc694\uccad\u00b7\uc601\ud5a5\ubd84\uc11d<\/div>\n <\/div>\n <div class=\"box summary\">\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\ud5d8\ud55c \ud615\uc0c1\uc758 \ubc84\uc804\uc774 \uba85\ud655\ud560 \ub54c\ub9cc \uc720\ud6a8\ud55c \uc99d\uac70\uac00 \ub41c\ub2e4. \ud615\uc0c1\uad00\ub9ac\ub294 \uc124\uacc4\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, \uc2dc\ud5d8\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, Release\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \ub3d9\uc77c\ud558\ub2e4\ub294 \uac83\uc744 \ubcf4\uc99d\ud55c\ub2e4.<\/div>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"flow-explanation\">\n <h2>4. \uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85<\/h2>\n\n <h3>4.1 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uc758 \uc870\uc9c1\uacfc \uad00\ub9ac<\/h3>\n <p>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc740 \uae30\ub2a5\uc548\uc804\uad00\ub9ac\uccb4\uacc4 \uc548\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud55c\ub2e4. \uac1c\ubc1c\uacc4\ud68d\uc5d0\ub294 \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\ud56d\ubaa9, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \ud3ec\ud568\ud55c\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc758 \ubcf5\uc7a1\ub3c4\uc640 \ubaa9\ud45c SIL\uc5d0 \ub9de\ucd94\uc5b4 \uc0dd\uba85\uc8fc\uae30\ub97c \uc815\uc758\ud558\uace0 \ubb38\uc11c\ub85c \uc124\uba85\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\ud45c\uc900\uc740 V-Model\uc744 \uad8c\uace0\ud558\uc9c0\ub9cc Waterfall \ub4f1 \ub2e4\ub978 \ubaa8\ub378\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc V-Model\uacfc \ub3d9\ub4f1\ud55c \uc124\uacc4\ub2e8\uacc4, \uac80\uc99d\ub2e8\uacc4, \ucd94\uc801\uc131 \ubc0f \uac80\ud1a0 \ud2b9\uc131\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4. SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud45c\uc900 \uc0dd\uba85\uc8fc\uae30 \ud65c\ub3d9\uacfc \ub2e4\ub978 \ubd80\ubd84\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\ub2f9\ud654\ud558\uace0 \uac80\ud1a0\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.1 Organizing and Managing the Software Engineering<\/span>\n\n <h3>4.2 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28 \uc124\uc815<\/h3>\n <p>\uc6d0\ubb38\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28\uc5d0 \ub2e4\uc74c \ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud3ec\ud568\ud558\ub3c4\ub85d \uc694\uad6c\ud55c\ub2e4.<\/p>\n <ol>\n <li>\ud615\uc0c1\ud1b5\uc81c\ub97c \uc2dc\uc791\ud558\ub294 \uc0dd\uba85\uc8fc\uae30 \ub2e8\uacc4<\/li>\n <li>\uae30\uc900\uc120\uc744 \uc124\uc815\ud558\ub294 \uc704\uce58\uc640 \uc2b9\uc778\ubc29\ubc95<\/li>\n <li>\uc694\uad6c\uc0ac\ud56d \ucd94\uc801\ubc29\ubc95<\/li>\n <li>\ubcc0\uacbd\ud1b5\uc81c \uc808\ucc28<\/li>\n <li>\ubcc0\uacbd \uc601\ud5a5\ud3c9\uac00<\/li>\n <li>Release\uc640 \ud3d0\uae30 \uaddc\uce59<\/li>\n <\/ol>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud615\uc0c1\ud1b5\uc81c\ub97c \uac00\uc7a5 \uc791\uc740 \ucef4\ud30c\uc77c \ubaa8\ub4c8 \ub610\ub294 \ub2e8\uc704\uae4c\uc9c0 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.1, software configuration management process<\/span>\n\n <h3>4.3 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uba85\uc138\uc11c \uc791\uc131<\/h3>\n <p>Software Safety Requirements Specification\uc5d0\ub294 \uc548\uc804\uae30\ub2a5\uacfc \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \ud568\uaed8 \uaddc\uc815\ud55c\ub2e4. \uc8fc\uc694 \ud56d\ubaa9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n <ul>\n <li>\ucc98\ub9ac\uc6a9\ub7c9\uacfc \uc751\ub2f5\uc2dc\uac04<\/li>\n <li>\uc7a5\ube44 \ubc0f \uc6b4\uc804\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc624\uc0ac\uc6a9<\/li>\n <li>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc790\uae30\uac10\uc2dc\uc640 \uc548\uc804\uc0c1\ud0dc \uac15\uc81c\uae30\ub2a5<\/li>\n <li>\ub370\uc774\ud130 \uc800\uc7a5\uacf5\uac04\uc758 Overflow\uc640 Underflow<\/li>\n <li>\ub370\uc774\ud130 \uc190\uc0c1\uacfc \ud5c8\uc6a9\ubc94\uc704\ub97c \ubc97\uc5b4\ub09c \uac12<\/li>\n <li>\uc6b4\uc804 \uc911 \uc548\uc804\uae30\ub2a5\uc758 \uc8fc\uae30\uc801 \uc2dc\ud5d8<\/li>\n <li>\ubaa8\ub4e0 \uc6b4\uc804\ubaa8\ub4dc, \uc720\uc9c0\ubcf4\uc218 \uc694\uad6c, \ub0b4\ubd80\u00b7\uc678\ubd80 \uc778\ud130\ud398\uc774\uc2a4<\/li>\n <\/ul>\n <p>\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc815\ud655\ud558\uba70 \ubaa8\ud638\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. \ub610\ud55c \uc0c1\uc704 \uc548\uc804\uc0ac\uc591\uacfc \uad00\ub828 \ubb38\uc11c\uae4c\uc9c0 \ucd94\uc801\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"box practice\">\n <span class=\"box-title\">\uc2dc\ud5d8 \uac00\ub2a5\ud55c \uc694\uad6c\uc0ac\ud56d\uc758 \uc608<\/span>\n <p><strong>\ubaa8\ud638\ud55c \ud45c\ud604:<\/strong> \u201c\uc774\uc0c1\uc555\ub825\uc774 \ubc1c\uc0dd\ud558\uba74 \uc2e0\uc18d\ud788 \uc815\uc9c0\ud55c\ub2e4.\u201d<\/p>\n <p><strong>\uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud45c\ud604:<\/strong> \u201c\uc555\ub825\uc774 \uc124\uc815\uac12 \uc774\uc0c1\uc73c\ub85c \uc9c0\uc815\ub41c \uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ub418\uba74 \ucc28\ub2e8\ucd9c\ub825\uc744 \uc815\ud574\uc9c4 \uc751\ub2f5\uc2dc\uac04 \uc774\ub0b4\uc5d0 \ubc1c\uc0dd\uc2dc\ud0a4\uace0, \uc218\ub3d9 Reset \uc804\uae4c\uc9c0 \uc7ac\uae30\ub3d9\uc744 \uae08\uc9c0\ud55c\ub2e4.\u201d<\/p>\n <\/div>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc801\uc6a9\ud55c\ub2e4. SIL 4\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ucef4\ud4e8\ud130 \uc9c0\uc6d0\ub3c4\uad6c\ub97c \ucd94\uac00\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.2 Requirements Involving the Specification<\/span>\n\n <h3>4.4 \uc544\ud0a4\ud14d\ucc98 \uc124\uacc4\uc640 \ube44\uac04\uc12d\uc131<\/h3>\n <p>\uc124\uacc4\ubc29\ubc95\uc740 \ubaa8\ub4c8\ud654\ub97c \uc9c0\uc6d0\ud558\uace0 \ubcf5\uc7a1\ub3c4\ub97c \uc904\uc5ec\uc57c \ud55c\ub2e4. \uae30\ub2a5, \uc815\ubcf4\ud750\ub984, \ub370\uc774\ud130\uad6c\uc870, \uc2e4\ud589\uc21c\uc11c, \uc2dc\uac04\uc81c\uc57d \ubc0f \uc124\uacc4\uac00\uc815\uc744 \uba85\ud655\ud558\uac8c \ud45c\ud604\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\uc2dc\uc2a4\ud15c \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc2dc\uc2a4\ud15c \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5, \ud1b5\uc2e0\ub9c1\ud06c \uc624\ub958 \ubc0f \ud45c\uc900 \uc751\uc6a9\ubaa8\ub4c8\uc744 \uc9c4\ub2e8\ud574\uc57c \ud55c\ub2e4. \uace0\uc7a5\uc744 \uac80\ucd9c\ud558\uba74 \uace0\uc7a5 \uc694\uc18c\ub97c \uaca9\ub9ac\ud558\uac70\ub098 \uc548\uc804\uc0c1\ud0dc\ub85c \uc804\ud658\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 Watchdog\uc640 \uc9c1\ub82c\ud1b5\uc2e0 \uc624\ub958\uac80\ucd9c \uac19\uc740 \uae30\ubcf8 \uc9c4\ub2e8\uc774 \ud544\uc694\ud558\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc13c\uc11c, I\/O \ud68c\ub85c, \ub17c\ub9ac\ucc98\ub9ac\ubd80, \ucd9c\ub825\uc694\uc18c, \ud1b5\uc2e0 \ubc0f \uba54\ubaa8\ub9ac\uae4c\uc9c0 \uace0\uc7a5\uac80\ucd9c\uc744 \ud655\ub300\ud55c\ub2e4.<\/p>\n <p>\uc548\uc804\uae30\ub2a5\uacfc \ube44\uc548\uc804\uae30\ub2a5\uc774 \uac19\uc740 \ud50c\ub7ab\ud3fc\uc5d0 \uc874\uc7ac\ud558\uba74 \ube44\uac04\uc12d\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \ucc98\ub9ac\uc2dc\uac04, \uae30\ub2a5 \uac04 \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c \uac00\ub2a5\uc131\uc744 \uac80\ud1a0\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.1 Features of the Design and Architecture<\/span>\n\n <h3>4.5 \uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529<\/h3>\n <p>\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529\uc740 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ubaa8\ub4c8\uc744 \ub9cc\ub4e4\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ubc18\uc815\ud615 \uc124\uacc4\ubc29\ubc95, \uc124\uacc4\ud45c\uc900, \ucf54\ub529\ud45c\uc900 \ubc0f \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.<\/p>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uac00\ub2a5\ud55c \ud55c \uc720\uc0ac\ud55c \uc751\uc6a9\uc5d0\uc11c \uc0ac\uc6a9\ub418\uace0 \uc2dc\ud5d8\ub41c Trusted\/Verified Module\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc7ac\uc0ac\uc6a9 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ud604\uc7ac \uc2dc\uc2a4\ud15c \uc801\ud569\uc131\uc774 \uc790\ub3d9 \ubcf4\uc7a5\ub418\uc9c0\ub294 \uc54a\ub294\ub2e4. \uc801\uc6a9\ud658\uacbd\uacfc \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>\uc624\ud504\ub77c\uc778 \ub3c4\uad6c\ub85c \ucda9\ubd84\ud788 \ud655\uc778\ud558\uae30 \uc5b4\ub824\uc6b4 \ub3d9\uc801 \uac1d\uccb4\ub294 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubcc0\uc218\uc758 \ubc94\uc704\uc640 \uac00\ub2a5\ud558\uba74 \ud0c0\ub2f9\uc131\uc744 \uac80\uc0ac\ud558\ub294 \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud558\uba70, \uc778\ud130\ub7fd\ud2b8, \ud3ec\uc778\ud130 \ubc0f \uc7ac\uadc0\uc758 \uc0ac\uc6a9\uc744 \uc81c\ud55c\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.2 Detailed Design and Coding<\/span>\n\n <h3>4.6 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc640 \uc9c0\uc6d0\ub3c4\uad6c<\/h3>\n <p>\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub294 \uc644\uc804\ud558\uace0 \ubaa8\ud638\ud558\uc9c0 \uc54a\uac8c \uc815\uc758\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ucf54\ub529\ud45c\uc900\uacfc \uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n <ul>\n <li><strong>SIL 2 \uc774\uc0c1:<\/strong> \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30\ub97c \uae08\uc9c0\ud55c\ub2e4.<\/li>\n <li><strong>SIL 3\uacfc SIL 4:<\/strong> \uc778\ud130\ub7fd\ud2b8\uc640 \ud3ec\uc778\ud130 \uc81c\ud55c\uc744 \uac15\ud654\ud558\uace0, \ub3c4\uad6c \uc624\ub958\uc5d0 \ub300\ube44\ud55c \ub2e4\uc591\uc131 \uae30\ub2a5\uc744 \uac80\ud1a0\ud55c\ub2e4.<\/li>\n <\/ul>\n <p>\uc9c0\uc6d0\ub3c4\uad6c\ub294 \ucda9\ubd84\ud55c \uc0ac\uc6a9\uc2e4\uc801\uc774 \uc788\uace0 \uc54c\ub824\uc9c4 \uc624\ub958\uac00 \ud574\uacb0\ub418\uc5c8\uac70\ub098 \uc548\uc804\uc2dc\uc2a4\ud15c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc778\uc99d\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc774 \uc694\uad6c\ub294 Compiler\ub098 PLC \ub3c4\uad6c\ubfd0 \uc544\ub2c8\ub77c PFD \ub610\ub294 \uace0\uc7a5\ub960 \uacc4\uc0b0\uc6a9 \uc624\ud504\ub77c\uc778 \ud328\ud0a4\uc9c0\uc5d0\ub3c4 \uc801\uc6a9\ub41c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.3.3 Programming Language and Support Tools<\/span>\n\n <h3>4.7 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc2dc\ud5d8\uacfc \ud1b5\ud569\uc2dc\ud5d8<\/h3>\n <p>\uac01 \ubaa8\ub4c8\uc740 Code Review\uc640 \uc2dc\ud5d8\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc2dc\ud5d8\ubaa9\ud45c\ub294 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc815\ud655\ud788 \uc218\ud589\ud558\ub294\uc9c0 \ud655\uc778\ud558\uace0, \uc81c\ud55c\ub41c \ube44\uc815\uc0c1 \ub370\uc774\ud130\uc5d0\uc11c\ub3c4 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n <p>\ubaa8\ub4c8\uc2dc\ud5d8 \ud6c4\uc5d0\ub294 \uc0ac\uc804\uc5d0 \uc815\uc758\ud55c \uc2dc\ud5d8\uc0ac\ub840\uc640 \uc2dc\ud5d8\ub370\uc774\ud130\ub85c \ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8\uc744 \uc218\ud589\ud55c\ub2e4. \uae30\ub2a5\uc2dc\ud5d8, Black Box \uc2dc\ud5d8 \ubc0f \uc131\ub2a5\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4.<\/p>\n <p>\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\uac04\uc21c\uc73c\ub85c \uae30\ub85d\ud55c\ub2e4. \ubaa8\ub4c8\ubc84\uc804\uacfc \uc2dc\ud5d8\uc808\ucc28\uc11c \ubc84\uc804\uc744 \uba85\uc2dc\ud558\uace0 \uc608\uc0c1\uacb0\uacfc\uc640 \uc2e4\uc81c\uacb0\uacfc\uc758 \ubd88\uc77c\uce58\ub97c \uba85\ud655\ud558\uac8c \ud45c\uc2dc\ud55c\ub2e4. \uc2dc\ud5d8 \uc774\ud6c4 \ubcc0\uacbd\uc774 \ubc1c\uc0dd\ud558\uba74 \uc601\ud5a5\ubd84\uc11d\uc73c\ub85c \uc7ac\uc2dc\ud5d8 \ubc94\uc704\ub97c \uacb0\uc815\ud55c\ub2e4.<\/p>\n <p>SIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \uacbd\uacc4\uac12\uc2dc\ud5d8\uacfc \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc911\uc694\ud55c \uc0ac\uac74\uc758 Cause-Consequence \ubd84\uc11d\uc5d0\uc11c \ub3c4\ucd9c\ud55c \uc2dc\ud5d8\uc744 \ucd94\uac00\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.4.1 Software Module Testing and Integration<\/span>\n\n <h3>4.8 \uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8<\/h3>\n <p>\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8\uc740 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud3ec\ud568\ud558\ub294 \ud1b5\ud569 \uc2dc\uc2a4\ud15c\uc744 \uc2dc\ud5d8\ud55c\ub2e4. \uc774 \ub2e8\uacc4\ub294 Factory Acceptance Test\uae4c\uc9c0 \uc774\uc5b4\uc9c8 \uc218 \uc788\ub2e4. \uc2dc\ud5d8 Harness\ub3c4 \uc2dc\ud5d8\uc7a5\ube44\uc758 \uc77c\ubd80\uc774\ubbc0\ub85c \uc124\uacc4\ubb38\uc11c\uc640 \uc801\ud569\uc131 \ud655\uc778\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n <p>\uc6d0\ubb38\uc740 \uc2dc\ud5d8\uae30\ub85d\uc744 \ud2b9\ud788 \uac15\uc870\ud55c\ub2e4. \uc2dc\ud5d8\uae30\ub85d\uc740 \uc2dc\ud5d8\uacb0\uacfc\ub97c \ud655\uc778\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uac00\uc2dc\uc801 \uc99d\uac70\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.4.2 Overall Integration Testing<\/span>\n\n <h3>4.9 Validation<\/h3>\n <p>Validation\uc740 \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \ubaa8\ub4e0 \ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uace0 \uc124\uacc4\uc808\ucc28\uac00 \uc900\uc218\ub418\uc5c8\uc74c\uc744 \ud655\uc778\ud55c\ub2e4. Validation Plan\uc740 \uc804\uccb4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc5b4\ub5bb\uac8c \ud655\uc778\ub418\ub294\uc9c0\ub97c \ubcf4\uc5ec\uc57c \ud55c\ub2e4.<\/p>\n <ul>\n <li>\uc0dd\uba85\uc8fc\uae30 \uc804\uccb4\uc640 \uac10\uc0ac\uc2dc\uc810<\/li>\n <li>\uad6c\uccb4\uc801\uc778 \ud569\uaca9\u00b7\ubd88\ud569\uaca9 \uae30\uc900<\/li>\n <li>\uc120\uc815\ud55c Validation \ubc29\ubc95\uacfc \uc120\uc815 \uadfc\uac70<\/li>\n <li>\ubd80\uc801\ud569 \uc0ac\ud56d\uc758 \ucc98\ub9ac\ubc29\ubc95<\/li>\n <\/ul>\n <p>SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\uac00 \uc81c\uc2dc\ub418\uc5b4\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc815\ud655\uc131, \uc77c\uad00\uc131 \ubc0f \ucf54\ub529\uaddc\uce59 \ub4f1 \ud45c\uc900 \uc900\uc218\ub97c \ub354\uc6b1 \uc5c4\uaca9\ud558\uac8c \ud655\uc778\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.5 Validation<\/span>\n\n <h3>4.10 \uc7ac\uc0ac\uc6a9 \uc694\uc18c\uc758 Safety Manual<\/h3>\n <p>\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uc18c\uc5d0\ub294 Safety Manual\uc774 \ud544\uc694\ud558\ub2e4. \uc8fc\uc694 \ub0b4\uc6a9\uc740 \uae30\ub2a5\uacfc \uc18d\uc131, \uad6c\uc131\uacfc \uc124\uacc4\uac00\uc815, \ud1b5\ud569\uc790\uc5d0\uac8c \uc694\uad6c\ub418\ub294 \ucd5c\uc18c \uc9c0\uc2dd, \uc124\uce58\ubc29\ubc95, Release \uc0ac\uc720, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc6b4\uc601\uccb4\uc81c \uc758\uc874\uc131, Compiler\uc640 \ub3c4\uad6c \ubc84\uc804, \uc694\uc18c\uc758 \ubc84\uc804\uacfc \uac1c\uc815\uc0c1\ud0dc, \ubcc0\uacbd\uc694\uccad \ubc29\ubc95 \ubc0f \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d\uc774\ub2e4.<\/p>\n <div class=\"box summary\">Safety Manual\uc740 \ub2e8\uc21c\ud55c \uc778\uc99d\uc11c\uac00 \uc544\ub2c8\ub2e4. \uc7ac\uc0ac\uc6a9 \uc694\uc18c\ub97c \uc5b4\ub5a4 \uc870\uac74\uacfc \uc81c\ud55c \uc548\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\ub824\uc8fc\ub294 \ud1b5\ud569 \uc9c0\uce68\uc774\ub2e4.<\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.6 Safety Manuals<\/span>\n\n <h3>4.11 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubcc0\uacbd<\/h3>\n <p>\ubaa8\ub4e0 \ubcc0\uacbd\uc5d0\ub294 \ubcc0\uacbd\ub85c\uadf8, \uac1c\uc815\uad00\ub9ac, \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5\ubd84\uc11d \ubc0f \uc7ac\uc2dc\ud5d8\uc774 \ud544\uc694\ud558\ub2e4. \ubcc0\uacbd\uc808\ucc28\ub294 \ucd5c\ucd08 \uc124\uacc4 \ub54c \uc801\uc6a9\ud55c \ubc29\ubc95\uacfc \ucd5c\uc18c\ud55c \ub3d9\ub4f1\ud574\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\ubaa9\ud45c SIL<\/th><th>\ubcc0\uacbd \ud6c4 \uc694\uad6c\ub418\ub294 \ud655\uc778\ubc94\uc704<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>SIL 1<\/td><td>\ubcc0\uacbd\ub41c \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>SIL 2<\/td><td>\ubcc0\uacbd\uc73c\ub85c \uc601\ud5a5\uc744 \ubc1b\ub294 \ubaa8\ub4e0 \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>SIL 3 \uc774\uc0c1<\/td><td>\uc804\uccb4 \uc2dc\uc2a4\ud15c\uc744 \uc7acValidation\ud55c\ub2e4.<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <p>\uc18c\ud504\ud2b8\uc6e8\uc5b4\uac00 \ud3ec\ud568\ub41c SIL 3 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \uc804\uccb4 \uc7acValidation\uc774 \uc0c1\ub2f9\ud55c \ube44\uc6a9\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \ucd08\uae30\ubd80\ud130 \ubcc0\uacbd\uc601\ud5a5\uc744 \uc81c\ud55c\ud560 \uc218 \uc788\ub3c4\ub85d \ubaa8\ub4c8\ud654\uc640 \ucd94\uc801\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.7 Modifications<\/span>\n\n <h3>4.12 \ub300\uccb4\uae30\ubc95\uacfc \uc808\ucc28<\/h3>\n <p>\ud45c\uc900\uc5d0 \uc9c1\uc811 \ub098\uc5f4\ub418\uc9c0 \uc54a\uc740 \ub300\uccb4\uae30\ubc95\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc644\uc804\uc131\uacfc \uc815\ud655\uc131, \uc0ac\uc591 \uc624\ub958\uc640 \ubaa8\ud638\uc131\uc758 \ubd80\uc7ac, \uc774\ud574 \uc6a9\uc774\uc131, \ube44\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac04\uc12d \ubc29\uc9c0 \ubc0f Verification\uacfc Validation \uae30\ubc18 \uc81c\uacf5 \uc5ec\ubd80\ub97c \ud3c9\uac00\ud574\uc57c \ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uc801\uc6a9 \uc218\uc900<\/th><th>\ub4f1\uae09<\/th><th>\uc758\ubbf8<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>SIL 1\u20132<\/td><td>R1<\/td><td>\uc81c\ud55c\ub41c \uac1d\uad00\uc801 \ud569\uaca9\uae30\uc900. \uc608: Black Box Test, Field Trial<\/td><\/tr>\n <tr><td>SIL 3<\/td><td>R2<\/td><td>\ub192\uc740 \uc2e0\ub8b0\ub3c4\ub97c \uac16\ub294 \uac1d\uad00\uc801 \uae30\uc900. \uc608: \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\ub97c \uac16\ub294 \uc2dc\ud5d8<\/td><\/tr>\n <tr><td>SIL 4<\/td><td>R3<\/td><td>\uac1d\uad00\uc801\uc774\uace0 \uccb4\uacc4\uc801\uc778 \ub17c\uc99d. \uc608: Formal Proof<\/td><\/tr>\n <tr><td>\ud574\ub2f9 \uc5c6\uc74c<\/td><td>\u2014<\/td><td>\uc81c\uc548 \uae30\ubc95\uc5d0 \uad00\ub828\ub418\uc9c0 \uc54a\ub294 \uc18d\uc131<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.8 Alternative Techniques and Procedures<\/span>\n\n <h3>4.13 Data-driven System\uc758 \ub124 \uac00\uc9c0 \uc720\ud615<\/h3>\n <p>Data-driven System\uc740 \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc5d0 \uc785\ub825\ub418\ub294 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uc751\uc6a9\uae30\ub2a5\uc744 \uad6c\uc131\ud55c\ub2e4. \ubcf5\uc7a1\ub3c4\uc640 \uc0ac\uc6a9\uc790 \uc790\uc720\ub3c4\uc5d0 \ub530\ub77c \uc0dd\uba85\uc8fc\uae30\ub97c Tailoring\ud55c\ub2e4.<\/p>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uc720\ud615<\/th><th>\ub300\ud45c \uc608<\/th><th>\ud575\uc2ec \ud655\uc778\uc0ac\ud56d<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>Limited variability configuration \/ Limited application configurability<\/td><td>Smart Sensor, Smart Actuator\uc758 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815<\/td><td>\uc785\ub825 \ud30c\ub77c\ubbf8\ud130 \uba85\uc138, \uc815\ud655\ud55c \uc801\uc6a9, \ubaa8\ub4e0 \uc870\ud569\uc758 Validation, \ud2b9\uc218 \uc6b4\uc804\ubaa8\ub4dc, \uc778\uc801\uc694\uc778, Interlock \uc720\uc9c0, \uc784\uc758 \uc7ac\uc124\uc815 \ubc29\uc9c0<\/td><\/tr>\n <tr><td>Limited variability configuration \/ Full application configurability<\/td><td>\ub300\uaddc\ubaa8 \uc815\uc801 \ub370\uc774\ud130\ub85c \uc2dc\uc2a4\ud15c\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0<\/td><td>\ub370\uc774\ud130 \uc0dd\uc131 \uc790\ub3d9\ud654\ub3c4\uad6c, \ub370\uc774\ud130 \uc77c\uad00\uc131, \uaddc\uce59 \uc900\uc218, \ub370\uc774\ud130 \uc900\ube44\uc2dc\uc2a4\ud15c \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc720\ud6a8\uc131<\/td><\/tr>\n <tr><td>Limited variability programming \/ Limited application configurability<\/td><td>Function Block, Ladder Logic, Spreadsheet \uae30\ubc18 \uc2dc\uc2a4\ud15c<\/td><td>\uc751\uc6a9\uc694\uad6c\uc0ac\ud56d, \ud5c8\uc6a9 \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569, \ubd80\ubd84\uc9d1\ud569 \uacb0\ud569 \uc124\uacc4\ubc29\ubc95, \uac00\ub2a5\ud55c \uc2dc\uc2a4\ud15c \uc0c1\ud0dc\uc870\ud569\uc744 \ub2e4\ub8e8\ub294 Verification \ucee4\ubc84\ub9ac\uc9c0<\/td><\/tr>\n <tr><td>Limited variability programming \/ Full application configurability<\/td><td>\uadf8\ub798\ud53d \uc2dc\uc2a4\ud15c, SCADA \uae30\ubc18 Batch Control<\/td><td>\uc751\uc6a9 \uc544\ud0a4\ud14d\ucc98, Template \uc81c\uacf5, \uac1c\ubcc4 Template Verification, \uc644\uc131\ub41c \uc751\uc6a9\uc758 Verification\uacfc Validation<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.9 Data-Driven Systems<\/span>\n\n <h3>4.14 \uc815\uc801\ubd84\uc11d<\/h3>\n <p>\uc815\uc801\ubd84\uc11d\uc740 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc18c\uc2a4\ucf54\ub4dc\ub97c \ub300\uc218\uc801\uc73c\ub85c \ubd84\uc11d\ud55c\ub2e4. \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc54c\uace0\ub9ac\uc998\uc758 \uc5f0\uc0b0\uad00\uacc4\ub97c \uac80\ud1a0\ud55c\ub2e4. Part 3\uc758 Table B8\uc740 Data Flow\uc640 Control Flow\ub97c SIL 3\uacfc SIL 4\uc5d0\uc11c Highly Recommended\ub85c \uc81c\uc2dc\ud55c\ub2e4.<\/p>\n <ul>\n <li>\uc5b8\uc5b4\ubcc4 Translator\uc640 \ubd84\uc11d\ub3c4\uad6c\uac00 \ud544\uc694\ud558\ub2e4.<\/li>\n <li>\uc8fc\ub85c \uc808\ucc28\ud615 \uace0\uae09\uc5b8\uc5b4\uc5d0 \uc801\uc6a9\ub41c\ub2e4.<\/li>\n <li>PLC \ucf54\ub4dc\ub294 \uc790\ub3d9\ubd84\uc11d \ub300\uc2e0 \uc218\ub3d9 Walkthrough\uc5d0 \uc758\uc874\ud560 \uc218 \uc788\ub2e4.<\/li>\n <li>\ub17c\ub9ac\uae30\ub2a5\uc740 \ubd84\uc11d\ud558\uc9c0\ub9cc \ud0c0\uc774\ubc0d \ud2b9\uc131\uc740 \uc9c1\uc811 \ub2e4\ub8e8\uc9c0 \ubabb\ud55c\ub2e4.<\/li>\n <li>\uc815\uc801\ubd84\uc11d\ub9cc\uc73c\ub85c \ucf54\ub4dc\ud488\uc9c8 \uc804\uccb4\ub97c \ubcf4\uc99d\ud558\uc9c0 \ubabb\ud55c\ub2e4.<\/li>\n <\/ul>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.1 Static Analysis<\/span>\n\n <h3>4.15 \ud615\uc2dd\uae30\ubc95<\/h3>\n <p>\ud615\uc2dd\uae30\ubc95\uc740 \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \uc815\uc758\ud55c\ub2e4. \uc7a5\uc810\uc740 \uc0dd\uba85\uc8fc\uae30 \ucd08\uae30\uc5d0 \uc7a0\uc7ac\uc624\ub958\ub97c \uc608\ubc29\ud558\uac70\ub098 \ubc1c\uacac\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4.<\/p>\n <p>\uadf8\ub7ec\ub098 \ud6c8\ub828\ub41c \uc778\ub825\uacfc \uc801\uc808\ud55c \ub3c4\uad6c\uac00 \ud544\uc694\ud558\uba70, \ubaa8\ub4e0 \uc751\uc6a9\uc5d0 \ubcf4\ud3b8\uc801\uc73c\ub85c \uc801\ud569\ud55c \ud558\ub098\uc758 \ubc29\ubc95\uc740 \uc5c6\ub2e4. \uc6d0\ubb38\uc740 Formal Method\uc640 Formal Proof\ub97c SIL 4\uc5d0\uc11c Highly Recommended, SIL 2\uc640 SIL 3\uc5d0\uc11c Recommended\ub85c \uc124\uba85\ud55c\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.2 Use of Formal Methods<\/span>\n\n <h3>4.16 PLC \uc5b8\uc5b4<\/h3>\n <p>\ucd08\uae30\uc758 Ladder Logic\uc740 \ubd84\uae30\ubb38\uc774 \uac70\uc758 \uc5c6\ub294 Limited Variability Language\uc600\uc73c\ubbc0\ub85c \ubaa8\ub4e0 SIL\uc5d0\uc11c \ube44\uad50\uc801 \uc27d\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\uc5c8\ub2e4. \ud604\ub300 PLC\ub294 \uba85\ub839\uc9d1\ud569\uc774 \ud655\ub300\ub418\uace0 \ubd84\uae30\uc640 \ubcf5\uc7a1\ud55c \uae30\ub2a5\uc774 \ucd94\uac00\ub418\uc5c8\ub2e4. \ub530\ub77c\uc11c \ub192\uc740 SIL\uc5d0\uc11c\ub294 \uba85\ub839\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc81c\ud55c\ud574\uc57c \ud55c\ub2e4.<\/p>\n <p>IEC 61131-3 \uc5b8\uc5b4\ub97c \uc0ac\uc6a9\ud560 \ub54c\ub3c4 \uc548\uc804\uad00\ub828 \uc751\uc6a9\uc5d0 \uc801\ud569\ud55c Restricted Subset\uc744 \uc815\uc758\ud574\uc57c \ud55c\ub2e4. Cause and Effect Diagram\uc73c\ub85c Shutdown System\uc744 \uc9c1\uc811 \uad6c\uc131\ud558\ub294 \uc804\uc6a9\uc5b8\uc5b4\ub294 \uc548\uc804\uc751\uc6a9\uc744 \uc704\ud574 \uc81c\ud55c\ub41c \ubd80\ubd84\uc9d1\ud569\uc758 \uc0ac\ub840\uc774\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.3 PLCs and their Languages<\/span>\n\n <h3>4.17 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc7ac\uc0ac\uc6a9<\/h3>\n <p>\uc7ac\uc0ac\uc6a9\uc740 \uc774\ubbf8 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub41c \uc0ac\uc591, \uc54c\uace0\ub9ac\uc998 \ub610\ub294 \ucf54\ub4dc\ub97c \ud65c\uc6a9\ud55c\ub2e4. \uae30\uc874 \ucf54\ub4dc\ub098 \uc0ac\uc591\uc5d0 \uc0ac\uc6a9\uc99d\uac70\uac00 \uc788\uace0, \ud3c9\uade0\ubcf4\ub2e4 \ub9ce\uc740 \uc2dc\ud5d8\uc744 \ubc1b\uc558\uc73c\uba70, \uc2e4\uc81c \uc751\uc6a9\ud658\uacbd\uc5d0\uc11c \uc2dc\ud5d8\ub418\uc5c8\uc744 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\ub2e4.<\/p>\n <p>\ubc18\ub300\ub85c \uc0c8\ub85c\uc6b4 \ud658\uacbd\uc5d0\uc11c \uc7a0\uc7ac\uacb0\ud568\uc774 \ub098\ud0c0\ub0a0 \uc218 \uc788\uace0, \ubd88\ud544\uc694\ud55c \uae30\ub2a5 \ub54c\ubb38\uc5d0 \uc218\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc73c\uba70, \ub0b4\ubd80\ub3d9\uc791\uc744 \ucda9\ubd84\ud788 \uc774\ud574\ud558\uc9c0 \ubabb\ud560 \uc218\ub3c4 \uc788\ub2e4. \ub530\ub77c\uc11c \uc7ac\uc0ac\uc6a9\uc758 \uc774\uc810\uc740 \uc801\uc808\ud55c \uc808\ucc28\uc640 \ud1b5\uc81c\uac00 \uc788\uc744 \ub54c\ub9cc \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.4 Software Reuse<\/span>\n\n <h3>4.18 Software Metrics<\/h3>\n <p>Software Metrics\ub294 \ucf54\ub4dc\uc758 \ud06c\uae30, \ubcf5\uc7a1\ub3c4 \ubc0f \uad6c\uc870\ub97c \uce21\uc815\ud55c\ub2e4. \ubd84\uae30\ubb38 \uc218\uac00 \ub300\ud45c\uc801\uc774\uba70 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \ud1b5\uacc4\ub3c4 Metrics\ub77c\ub294 \uc6a9\uc5b4\ub85c \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n <p>\uc6d0\ubb38\uc740 Metrics\uc758 \uac00\uce58\uc5d0 \ub300\ud574 \uc0c1\ubc18\ub41c \uacac\ud574\uac00 \uc788\ub2e4\uace0 \uc124\uba85\ud55c\ub2e4. \uc7a5\uae30\uac04 \ud2b9\uc815 \uc0b0\uc5c5\uc774\ub098 \uc81c\ud488\uad70\uc5d0\uc11c \uc77c\uad00\ub418\uac8c \uc218\uc9d1\ud558\uba74 \ud604\uc7a5\uace0\uc7a5 \uc131\ub2a5\uacfc\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \uc5f0\uad6c\ud560 \uc218 \uc788\uc9c0\ub9cc, Metrics\ub9cc\uc73c\ub85c \uc548\uc804\ubb34\uacb0\uc131\uc744 \uc9c1\uc811 \uc785\uc99d\ud558\uae30\uc5d0\ub294 \uc81c\ud55c\uc774 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.10.5 Software Metrics<\/span>\n\n <h3>4.19 \uc801\ud569\uc131 \uc785\uc99d \ud15c\ud50c\ub9bf<\/h3>\n <p>Chapter 4\uc758 \ucd5c\uc885\ubaa9\ud45c\ub294 IEC 61508 Part 3\uc758 \uc694\uad6c\uc0ac\ud56d\uc744 \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8 \uc99d\uac70\uc640 \uc5f0\uacb0\ud558\ub294 \uac83\uc774\ub2e4. Evidence\ub780\uc5d0\ub294 \ub2e4\uc74c \ubb38\uc11c\ub97c \uc5f0\uacb0\ud560 \uc218 \uc788\ub2e4.<\/p>\n <ul>\n <li>Software Development Plan<\/li>\n <li>Software Safety Requirements Specification<\/li>\n <li>\uc544\ud0a4\ud14d\ucc98 \ubc0f \ubaa8\ub4c8 \uc124\uacc4\uc11c<\/li>\n <li>\ucf54\ub529\ud45c\uc900\uacfc Code Review \uae30\ub85d<\/li>\n <li>\ud615\uc0c1\ud56d\ubaa9 \ubaa9\ub85d, Baseline \ubc0f \ubcc0\uacbd\ub85c\uadf8<\/li>\n <li>\ubaa8\ub4c8\uc2dc\ud5d8\u00b7\ud1b5\ud569\uc2dc\ud5d8\u00b7Acceptance Test \uacb0\uacfc<\/li>\n <li>Validation Plan\uacfc Validation Report<\/li>\n <li>Safety Manual<\/li>\n <li>\uc601\ud5a5\ubd84\uc11d\uacfc \uc7ac\uc2dc\ud5d8 \uae30\ub85d<\/li>\n <\/ul>\n <p>\u201cNot Applicable\u201d\uc740 \uc815\ub2f9\ud55c \uadfc\uac70\uac00 \uc788\uc744 \ub54c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uc0c1\ub300\uc801\uc73c\ub85c \ub2e8\uc21c\ud55c \uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc694\uc57d \ud15c\ud50c\ub9bf\uc73c\ub85c \ud3c9\uac00\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc0c8\ub85c\uc6b4 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud568\uaed8 \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0 \ud45c\uc900\uc758 \uc0c1\uc138\ud45c\ub97c \uc9c1\uc811 \uc801\uc6a9\ud560 \ud544\uc694\uac00 \uc788\ub2e4.<\/p>\n <span class=\"source-note\">\uc6d0\ubb38 \ub300\uc751: 4.11 Conformance Demonstration Template<\/span>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"configuration\">\n <h2>5. \ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac<\/h2>\n <h3>5.1 \uc815\uc758<\/h3>\n <div class=\"definition\">\ud615\uc0c1\uad00\ub9ac\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \uad00\ub828 \ubb38\uc11c\u00b7\ub370\uc774\ud130\u00b7\ub3c4\uad6c\ub97c \ud615\uc0c1\ud56d\ubaa9\uc73c\ub85c \uc2dd\ubcc4\ud558\uace0, \uc2b9\uc778\ub41c \ubc84\uc804 \uc870\ud569\uc744 \uae30\uc900\uc120\uc73c\ub85c \uc124\uc815\ud558\uba70, \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\uc5ec \uc124\uacc4\ud55c \uc2dc\uc2a4\ud15c, \uc2dc\ud5d8\ud55c \uc2dc\uc2a4\ud15c \ubc0f \uc124\uce58\ub41c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc77c\uc131\uc744 \ubcf4\uc7a5\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.<\/div>\n\n <h3>5.2 \ud615\uc0c1\ud56d\ubaa9\uc758 \ubc94\uc704<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uad6c\ubd84<\/th><th>\ud615\uc0c1\ud56d\ubaa9 \uc608\uc2dc<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\uc694\uad6c\uc0ac\ud56d<\/td><td>Software Safety Requirements Specification, \uc778\ud130\ud398\uc774\uc2a4 \uc694\uad6c\uc0ac\ud56d<\/td><\/tr>\n <tr><td>\uc124\uacc4<\/td><td>\uc544\ud0a4\ud14d\ucc98, Cause and Effect, State Diagram, \ubaa8\ub4c8 \uc124\uacc4\uc11c<\/td><\/tr>\n <tr><td>\uad6c\ud604<\/td><td>PLC Project, \uc18c\uc2a4\ucf54\ub4dc, Function Block, Library, \uc2e4\ud589\ud30c\uc77c<\/td><\/tr>\n <tr><td>\uc124\uc815<\/td><td>\ud30c\ub77c\ubbf8\ud130, Trip \uac12, \ud1b5\uc2e0\uc124\uc815, I\/O Mapping<\/td><\/tr>\n <tr><td>\ub3c4\uad6c\u00b7\ud658\uacbd<\/td><td>Compiler, PLC Engineering Tool, \uc6b4\uc601\uccb4\uc81c, Firmware<\/td><\/tr>\n <tr><td>\uc2dc\ud5d8<\/td><td>\uc2dc\ud5d8\uc808\ucc28, \uc2dc\ud5d8\ub370\uc774\ud130, Test Harness, \uc2dc\ud5d8\uacb0\uacfc, \uacb0\ud568\ubaa9\ub85d<\/td><\/tr>\n <tr><td>\uc6b4\uc601\uc790\ub8cc<\/td><td>Safety Manual, Release Note, \ubcc0\uacbd\ub85c\uadf8, \ud3d0\uae30\uc0c1\ud0dc<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n\n <h3>5.3 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28<\/h3>\n <ol>\n <li><strong>\uc2dd\ubcc4:<\/strong> \ud615\uc0c1\ud56d\ubaa9\ub9c8\ub2e4 \uace0\uc720 ID, \uba85\uce6d, \ubc84\uc804, \uc0c1\ud0dc \ubc0f \ucc45\uc784\uc790\ub97c \ubd80\uc5ec\ud55c\ub2e4.<\/li>\n <li><strong>\uae30\uc900\uc120:<\/strong> \uac80\ud1a0\uc640 \uc2b9\uc778 \ud6c4 \uc694\uad6c\uc0ac\ud56d\u00b7\uc124\uacc4\u00b7\uc2dc\ud5d8 \ub610\ub294 Release \uae30\uc900\uc120\uc744 \uc124\uc815\ud55c\ub2e4.<\/li>\n <li><strong>\ucd94\uc801:<\/strong> \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\uacb0\uacfc\ub97c \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ud55c\ub2e4.<\/li>\n <li><strong>\ubcc0\uacbd\ud1b5\uc81c:<\/strong> \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5, \uc2b9\uc778, \uad6c\ud604, \uc7ac\uc2dc\ud5d8 \ubc0f \uc0c8\ub85c\uc6b4 \ubc84\uc804\uc744 \uae30\ub85d\ud55c\ub2e4.<\/li>\n <li><strong>\uc0c1\ud0dc\uae30\ub85d:<\/strong> \ud604\uc7ac \uc2b9\uc778\uc0c1\ud0dc, \uc2dc\ud5d8\uc0c1\ud0dc, Release \uc0c1\ud0dc \ubc0f \ud3d0\uae30\uc0c1\ud0dc\ub97c \uc720\uc9c0\ud55c\ub2e4.<\/li>\n <li><strong>\uac10\uc0ac:<\/strong> \ubb38\uc11c, \uc800\uc7a5\uc18c, \ube4c\ub4dc\uacb0\uacfc \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \uc2b9\uc778\uae30\uc900\uc120\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.<\/li>\n <\/ol>\n\n <h3>5.4 \ubc84\uc804\uad00\ub9ac\uc640\uc758 \ucc28\uc774<\/h3>\n <div class=\"table-wrap\"><table>\n <thead><tr><th>\uac1c\ub150<\/th><th>\uc758\ubbf8<\/th><\/tr><\/thead>\n <tbody>\n <tr><td>\ubc84\uc804\uad00\ub9ac<\/td><td>\ud30c\uc77c\uc758 \uc218\uc815\uc774\ub825, \ucc28\uc774 \ubc0f \ubc84\uc804\uc744 \uc800\uc7a5\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>\ubcc0\uacbd\uad00\ub9ac<\/td><td>\ubcc0\uacbd\uc758 \ud544\uc694\uc131, \uc601\ud5a5, \uc2b9\uc778 \ubc0f \uc7ac\uc2dc\ud5d8\uc744 \ud1b5\uc81c\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>Release \uad00\ub9ac<\/td><td>\uc2b9\uc778\ub41c \ud615\uc0c1\uc870\ud569\uc744 \uc124\uce58\u00b7\uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc84\uc804\uc73c\ub85c \uacf5\uc2dd \ubc1c\ud589\ud55c\ub2e4.<\/td><\/tr>\n <tr><td>\ud615\uc0c1\uad00\ub9ac<\/td><td>\uc704 \ud65c\ub3d9\uc744 \ud1b5\ud569\ud558\uc5ec \uc2dc\uc2a4\ud15c \uc804\uccb4 \uad6c\uc131\uacfc \uc99d\uac70\uc758 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud55c\ub2e4.<\/td><\/tr>\n <\/tbody>\n <\/table><\/div>\n <p>Git\uacfc \uac19\uc740 \ub3c4\uad6c\ub294 \ud615\uc0c1\uad00\ub9ac\ub97c \uc9c0\uc6d0\ud558\uc9c0\ub9cc, Git\ub9cc\uc73c\ub85c \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \uc548\uc804\uc601\ud5a5\ubd84\uc11d, \ubcc0\uacbd\uc2b9\uc778, \ub3c4\uad6c\ubc84\uc804, \ud604\uc7a5 \uc124\uce58\ubcf8 \ubc0f Release \uc2b9\uc778\uc744 \uc790\ub3d9 \ubcf4\uc99d\ud558\uc9c0\ub294 \uc54a\ub294\ub2e4.<\/p>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n\n <section id=\"summary\">\n <h2>6. \ucd5c\uc885 \uc694\uc57d<\/h2>\n <ol class=\"lead\">\n <li>Chapter 4\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uad00\ub9ac\ud55c\ub2e4.<\/li>\n <li>\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uacc4\uc0b0\ud558\ub294 \ub300\uc2e0 SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d \uac15\ub3c4\ub97c \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>V-Model\uc740 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a8\ub2e4.<\/li>\n <li>\uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud558\uba70 \uc591\ubc29\ud5a5 \ucd94\uc801\uc774 \uac00\ub2a5\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\uc544\ud0a4\ud14d\ucc98\ub294 \ubaa8\ub4c8\ud654, \uc9c4\ub2e8 \ubc0f \ube44\uac04\uc12d\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\ucf54\ub529\uc740 \uc81c\ud55c\ub41c \uc5b8\uc5b4, \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>\ub3c4\uad6c\ub3c4 \uc0ac\uc6a9\uc2e4\uc801, \uc624\ub958\uad00\ub9ac \ub610\ub294 \uc778\uc99d\uc744 \ud1b5\ud574 \uc801\ud569\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.<\/li>\n <li>\ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 \ubc0f Validation\uc758 \uacb0\uacfc\uc5d0\ub294 \ubc84\uc804\uacfc \ubd88\uc77c\uce58 \ucc98\ub9ac\uae30\ub85d\uc774 \ud544\uc694\ud558\ub2e4.<\/li>\n <li>\ubcc0\uacbd\uc740 \uc601\ud5a5\ubd84\uc11d\uacfc SIL\ubcc4 \uc7ac\uac80\uc99d \ubc94\uc704\ub97c \uc801\uc6a9\ud55c\ub2e4.<\/li>\n <li>\ucd5c\uc885\uc801\uc73c\ub85c \ud45c\uc900 \uc694\uad6c\uc0ac\ud56d\uacfc \ud504\ub85c\uc81d\ud2b8 Evidence\ub97c \uc5f0\uacb0\ud558\uc5ec \uc801\ud569\uc131\uc744 \uc785\uc99d\ud55c\ub2e4.<\/li>\n <\/ol>\n <div class=\"definition\">Chapter 4\ub294 \uc548\uc804\uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc624\ub958\uac00 \uc5c6\ub2e4\uace0 \uc120\uc5b8\ud558\ub294 \ubc29\ubc95\uc774 \uc544\ub2c8\ub77c, \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \ubcc0\uacbd\uae4c\uc9c0 \uccb4\uacc4\uc801\uc778 \uc0dd\uba85\uc8fc\uae30\ub97c \uc801\uc6a9\ud558\uc5ec \uc624\ub958\ub97c \uc608\ubc29\u00b7\ubc1c\uacac\u00b7\ud1b5\uc81c\ud558\uace0, \uadf8 \uc218\ud589\uc99d\uac70\ub85c \ubaa9\ud45c SIL \uc801\ud569\uc131\uc744 \uc785\uc99d\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud55c\ub2e4.<\/div>\n <\/section>\n\n <section id=\"references\">\n <h2>7. \ucc38\uace0\ubb38\ud5cc<\/h2>\n <p>David J. Smith and Kenneth G. L. Simpson, <em>The Safety Critical Systems Handbook: A Straightforward Guide to Functional Safety, IEC 61508, IEC 61511 and Related Guidance<\/em>, 4th ed., Butterworth-Heinemann, 2016, Chapter 4, pp. 79\u2013100.<\/p>\n <a class=\"back-top\" href=\"#top\">\ub9e8 \uc704\ub85c<\/a>\n <\/section>\n <\/main>\n\n <footer>\n <strong>\ubb38\uc11c \ud615\uc2dd:<\/strong> \ub2e8\uc77c \ud504\ub808\uc784 \u00b7 \uc804\uccb4 \ud3ed \u00b7 \ub3c5\ub9bd \uc2e4\ud589\ud615 HTML \u00b7 \uc678\ubd80 \ub77c\uc774\ube0c\ub7ec\ub9ac \ubd88\ud544\uc694\n <\/footer>\n <\/article>\n<\/body>\n<\/html>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"TheSafetyCriticlaSystem-7\uc758 \uc0bd\uc785.\"><\/object><a id=\"wp-block-file--media-73096dc2-b1ea-41ff-b688-c9a5c1b33e9b\" href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\">TheSafetyCriticlaSystem-7<\/a><a href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/08\/TheSafetyCriticlaSystem-7.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-73096dc2-b1ea-41ff-b688-c9a5c1b33e9b\">\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>\\documentclass[11pt,a4paper]{article}\n\n\\usepackage{kotex}\n\\usepackage[margin=20mm]{geometry}\n\\usepackage{setspace}\n\\usepackage{booktabs}\n\\usepackage{tabularx}\n\\usepackage{array}\n\\usepackage{enumitem}\n\\usepackage{xcolor}\n\\usepackage{amsmath}\n\\usepackage{tikz}\n\\usepackage[most]{tcolorbox}\n\\usepackage{fancyhdr}\n\\usepackage{longtable}\n\\usepackage[hidelinks]{hyperref}\n\\usetikzlibrary{arrows.meta,positioning,shapes.geometric,fit,calc}\n\n\\setstretch{1.17}\n\\setlist[itemize]{leftmargin=1.7em,itemsep=2pt,topsep=3pt}\n\\setlist[enumerate]{leftmargin=2.0em,itemsep=4pt,topsep=4pt}\n\\renewcommand{\\arraystretch}{1.32}\n\\setlength{\\parindent}{0pt}\n\\setlength{\\parskip}{0.42em}\n\\sloppy\n\n\\definecolor{navy}{RGB}{28,56,92}\n\\definecolor{navy2}{RGB}{45,83,126}\n\\definecolor{bluegray}{RGB}{230,237,245}\n\\definecolor{lightgray}{RGB}{246,247,249}\n\\definecolor{darkgray}{RGB}{65,70,78}\n\\definecolor{accent}{RGB}{169,94,22}\n\\definecolor{paleorange}{RGB}{252,242,229}\n\\definecolor{palegreen}{RGB}{235,246,239}\n\n\\pagestyle{fancy}\n\\fancyhf{}\n\\lhead{IEC 61508 Part 3}\n\\rhead{Chapter 4 \ud559\uc2b5 \ub178\ud2b8}\n\\cfoot{\\thepage}\n\\renewcommand{\\headrulewidth}{0.4pt}\n\\setlength{\\headheight}{14pt}\n\n\\newtcolorbox{keybox}[1]{\n colback=bluegray,\n colframe=navy,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newtcolorbox{summarybox}{\n colback=lightgray,\n colframe=darkgray,\n boxrule=0.6pt,\n arc=1.5mm\n}\n\n\\newtcolorbox{warningbox}[1]{\n colback=paleorange,\n colframe=accent,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newtcolorbox{practicebox}[1]{\n colback=palegreen,\n colframe=navy2,\n boxrule=0.7pt,\n arc=1.5mm,\n title=\\textbf{#1},\n fonttitle=\\bfseries\n}\n\n\\newcommand{\\eng}[1]{\\textit{#1}}\n\\newcommand{\\term}[1]{\\textbf{#1}}\n\\newcommand{\\sourcepara}[1]{\\par\\smallskip\\textcolor{darkgray}{\\footnotesize\\textit{\uc6d0\ubb38 \ub300\uc751: #1}}}\n\n\\title{\\textbf{IEC 61508 Part 3 \uae30\ubc18\\\\\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c \uc815\ub9ac}}\n\\author{\\eng{The Safety Critical Systems Handbook}, Chapter 4 \ud559\uc2b5 \ub178\ud2b8}\n\\date{}\n\n\\begin{document}\n\n\\maketitle\n\n\\begin{summarybox}\nChapter 4\ub294 IEC 61508 Part 3\uc758 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\uc744 \uc124\uba85\ud55c\ub2e4. \ud575\uc2ec \ub300\uc0c1\uc740 \ub79c\ub364 \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5\uc774 \uc544\ub2c8\ub77c \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8 \ubc0f \ubcc0\uacbd \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \\term{\uccb4\uacc4\uc801 \uace0\uc7a5}\uc774\ub2e4. \ub530\ub77c\uc11c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc740 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uc608\uce21\ud558\uc5ec \uc785\uc99d\ud558\uc9c0 \uc54a\ub294\ub2e4. \ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30, \uc124\uacc4\uae30\ubc95, \uac80\ud1a0, \uc2dc\ud5d8, \ud615\uc0c1\uad00\ub9ac \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uc608\ubc29\ud558\uace0 \ubc1c\uacac\ud55c\ub2e4.\n\\end{summarybox}\n\n\\begin{keybox}{\uc774 \ubb38\uc11c\uc758 \uad6c\uc131}\n\\begin{enumerate}\n \\item \ud575\uc2ec \ud0a4\uc6cc\ub4dc\ub97c \uc815\uc758\ud55c\ub2e4.\n \\item \ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4\ub97c V-Model\uacfc \uc0dd\uba85\uc8fc\uae30 \uad00\uc810\uc5d0\uc11c \uc815\ub9ac\ud55c\ub2e4.\n \\item \uc6d0\ubb38\uc758 \ud750\ub984\uc5d0 \ub530\ub77c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \uc801\ud569\uc131 \uc785\uc99d\uae4c\uc9c0 \uc124\uba85\ud55c\ub2e4.\n \\item \ud615\uc0c1\uad00\ub9ac\ub97c \ubcc4\ub3c4\ub85c \uc815\ub9ac\ud558\uc5ec \uae30\uc900\uc120, \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, Release\uc758 \uad00\uacc4\ub97c \uba85\ud655\ud788 \ud55c\ub2e4.\n\\end{enumerate}\n\\end{keybox}\n\n\\tableofcontents\n\\newpage\n\n% =========================================================\n\\section{Chapter 4\uc758 \ubcf8\uc9c8}\n% =========================================================\n\n\\subsection{\uc801\uc6a9 \ubc94\uc704}\n\nIEC 61508 Part 3\uc740 \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uac1c\ubc1c\uc744 \ub2e4\ub8ec\ub2e4. \uc801\uc6a9 \ub300\uc0c1\uc740 \ud06c\uac8c \ub2e4\uc74c \ub450 \uacbd\uc6b0\ub85c \uad6c\ubd84\ub41c\ub2e4.\n\n\\begin{itemize}\n \\item \\term{Embedded software design}: \ud558\ub4dc\uc6e8\uc5b4\uc640 \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub41c \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0\n \\item \\term{Application software}: \uac80\uc99d\ub41c PLC \ud50c\ub7ab\ud3fc \ub4f1\uc5d0 \uc751\uc6a9 \ub85c\uc9c1\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0\n\\end{itemize}\n\n\ub450 \uacbd\uc6b0 \ubaa8\ub450 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc0dd\uba85\uc8fc\uae30\uac00 \ud544\uc694\ud558\ub2e4. \ub2e4\ub9cc \uc0dd\uba85\uc8fc\uae30\uc758 \ub2e8\uacc4 \uc218\uc640 \uac80\uc99d \uac15\ub3c4\ub294 \ubaa9\ud45c SIL\uacfc \uc2dc\uc2a4\ud15c \ubcf5\uc7a1\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4.\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131\uc758 \uc758\ubbf8}\n\n\ud558\ub4dc\uc6e8\uc5b4 \uc2e0\ub8b0\ub3c4 \uc608\uce21\uc740 \uc608\uc0c1 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc815\uc131\uc801 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\uace0 \ud574\uc11c \uccb4\uacc4\uc801 \uace0\uc7a5\uc758 \uace0\uc7a5\ub960\uc774 \uacc4\uc0b0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. Chapter 4\uac00 \uc8fc\uc7a5\ud560 \uc218 \uc788\ub294 \ubc94\uc704\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{warningbox}{\uc815\ub7c9\uc801 \uc624\ud574 \ubc29\uc9c0}\n\ubaa9\ud45c SIL\uc5d0 \ub9de\ub294 \uae30\ubc95\uc744 \uc801\uc6a9\ud588\ub2e4\ub294 \uc0ac\uc2e4\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc218\uce58\ub85c \uc9c1\uc811 \uc785\uc99d\ud55c \uac83\uc774 \uc544\ub2c8\ub2e4. \ud604\uc7ac\uc758 \uae30\uc220\uc218\uc900\uc5d0\uc11c \ud574\ub2f9 SIL\uc5d0 \uc801\uc808\ud55c \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d\uc218\ub2e8\uc744 \uc801\uc6a9\ud558\uc5ec \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \ucda9\ubd84\ud788 \uc5b5\uc81c\ud588\ub2e4\uace0 \ud310\ub2e8\ud558\ub294 \uac83\uc774\ub2e4.\n\\end{warningbox}\n\n\\subsection{\uc804\uccb4 \ud750\ub984}\n\n\\begin{center}\n\\begin{tikzpicture}[\n node distance=8mm and 6mm,\n box\/.style={draw=navy, rounded corners, fill=bluegray, align=center, minimum height=10mm, text width=29mm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray}\n]\n\\node[box] (plan) {\uae30\ub2a5\uc548\uc804\uad00\ub9ac\\\\\uac1c\ubc1c\uacc4\ud68d};\n\\node[box, right=of plan] (req) {\uc18c\ud504\ud2b8\uc6e8\uc5b4\\\\\uc548\uc804\uc694\uad6c\uc0ac\ud56d};\n\\node[box, right=of req] (arch) {\uc544\ud0a4\ud14d\ucc98\uc640\\\\\uc0c1\uc138\uc124\uacc4};\n\\node[box, below=of arch] (code) {\ucf54\ub529\uacfc\\\\\ub3c4\uad6c \ud1b5\uc81c};\n\\node[box, left=of code] (unit) {\ubaa8\ub4c8\uc2dc\ud5d8\uacfc\\\\\ud1b5\ud569\uc2dc\ud5d8};\n\\node[box, left=of unit] (valid) {\uc804\uccb4 \ud1b5\ud569\uacfc\\\\Validation};\n\\node[box, below=of valid] (change) {Safety Manual\\\\\ubcc0\uacbd\uad00\ub9ac};\n\\node[box, right=of change] (evidence) {\uc801\ud569\uc131 \uc785\uc99d\\\\Evidence};\n\\draw[arrow] (plan) -- (req);\n\\draw[arrow] (req) -- (arch);\n\\draw[arrow] (arch) -- (code);\n\\draw[arrow] (code) -- (unit);\n\\draw[arrow] (unit) -- (valid);\n\\draw[arrow] (valid) -- (change);\n\\draw[arrow] (change) -- (evidence);\n\\draw[arrow, dashed] (change.east) to[bend right=24] node[below, font=\\scriptsize]{\uc601\ud5a5\ubd84\uc11d\u00b7\uc7ac\uac80\uc99d} (req.south);\n\\end{tikzpicture}\n\\end{center}\n\n% =========================================================\n\\section{\ud0a4\uc6cc\ub4dc \uc815\uc758}\n% =========================================================\n\n\\subsection{\uae30\ubcf8 \uac1c\ub150}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nIEC 61508 Part 3 & \uc548\uc804\uad00\ub828 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \uc2dc\ud5d8, Validation, \ubcc0\uacbd \ubc0f \uc801\ud569\uc131 \uc785\uc99d\uc744 \ub2e4\ub8e8\ub294 \uaddc\uc815\uc774\ub2e4. \\\\\n\uccb4\uacc4\uc801 \uace0\uc7a5 & \uc694\uad6c\uc0ac\ud56d \uc624\ub958, \uc124\uacc4\uacb0\ud568, \ucf54\ub529\uc624\ub958, \ub3c4\uad6c\uc624\ub958 \ub610\ub294 \ubcc0\uacbd\uc624\ub958\ucc98\ub7fc \ud2b9\uc815 \uc870\uac74\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uace0\uc7a5\uc774\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd80\ud488 \uace0\uc7a5\ub960 \ubc29\uc2dd\uc73c\ub85c \uc9c1\uc811 \uc608\uce21\ud558\uc9c0 \uc54a\ub294\ub2e4. \\\\\nSIL & Safety Integrity Level\uc758 \uc57d\uc5b4\uc774\ub2e4. \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c\ub294 SIL\uc774 \ub192\uc544\uc9c8\uc218\ub85d \uc694\uad6c\uc0ac\ud56d \ud45c\ud604, \uc124\uacc4\uae30\ubc95, \uc2dc\ud5d8\ubc94\uc704, \ub3c5\ub9bd\uc131 \ubc0f \ubb38\uc11c\ud654\uac00 \uac15\ud654\ub41c\ub2e4. \\\\\n\uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 & \uac80\uc99d\ub41c \ud50c\ub7ab\ud3fc \uc704\uc5d0 \ud2b9\uc815 \uacf5\uc815\uc774\ub098 \uc548\uc804\uae30\ub2a5\uc744 \uad6c\ud604\ud558\ub294 \ub85c\uc9c1\uc774\ub2e4. PLC \ub798\ub354, Function Block \ub4f1\uc774 \ub300\ud45c\uc801\uc774\ub2e4. \\\\\n\uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4 & \ud558\ub4dc\uc6e8\uc5b4 \uae30\ub2a5\uacfc \ubc00\uc811\ud558\uac8c \uacb0\ud569\ub418\uc5b4 \uac1c\ubc1c\ub418\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc774\ub2e4. \uace0\uae09\uc5b8\uc5b4\uc640 \uc5b4\uc148\ube14\ub7ec\uac00 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\uba70 \ub354 \uc0c1\uc138\ud55c \uc124\uacc4\uc640 \ubd84\uc11d\uc774 \ud544\uc694\ud558\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc0dd\uba85\uc8fc\uae30\uc640 \uad00\ub9ac}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nSoftware Development Plan & \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\uad00\ub9ac, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \uc815\uc758\ud558\ub294 \uacc4\ud68d\uc774\ub2e4. \\\\\nV-Model & \uc694\uad6c\uc0ac\ud56d\uc5d0\uc11c \ucf54\ub4dc\ub85c \uad6c\uccb4\ud654\ud558\uace0, \ucf54\ub4dc\uc5d0\uc11c \ubaa8\ub4c8\u00b7\ud1b5\ud569\u00b7\uc804\uccb4 \uc2dc\uc2a4\ud15c \uc2dc\ud5d8\uc73c\ub85c \uc62c\ub77c\uac00\uba70 \uac01 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a4\ub294 \uc0dd\uba85\uc8fc\uae30 \ubaa8\ub378\uc774\ub2e4. \\\\\nVerification & \uac01 \ub2e8\uacc4\uc758 \uc0b0\ucd9c\ubb3c\uc774 \uc774\uc804 \ub2e8\uacc4\uc758 \uc785\ub825\uacfc \uc694\uad6c\uc0ac\ud56d\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\uc871\ud558\ub294\uc9c0 \uac80\ud1a0\ud558\uace0 \uc2dc\ud5d8\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\nValidation & \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uba70 \ud544\uc694\ud55c \uc808\ucc28\uac00 \uc218\ud589\ub418\uc5c8\ub294\uc9c0\ub97c \ucd5c\uc885 \ud655\uc778\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\n\ud615\uc0c1\uad00\ub9ac & \ud615\uc0c1\ud56d\ubaa9\uc744 \uc2dd\ubcc4\ud558\uace0 \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\uba70 \ucd94\uc801\uc131, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4. \\\\\nBaseline & \uac80\ud1a0\uc640 \uc2b9\uc778\uc774 \uc644\ub8cc\ub418\uc5b4 \uc774\ud6c4 \ubcc0\uacbd\uc774 \uacf5\uc2dd \ubcc0\uacbd\uc808\ucc28\ub97c \ud1b5\ud574\uc11c\ub9cc \ud5c8\uc6a9\ub418\ub294 \ud615\uc0c1\uc758 \uae30\uc900\uc810\uc774\ub2e4. \\\\\n\ucd94\uc801\uc131 & \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\ud56d\ubaa9 \ubc0f \uc2dc\ud5d8\uacb0\uacfc\uc640 \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ub418\ub294 \uc131\uc9c8\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\nSoftware Safety Requirements Specification & \uc548\uc804\uae30\ub2a5\uacfc \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud615\ud0dc\ub85c \uc815\uc758\ud558\ub294 \ubb38\uc11c\uc774\ub2e4. \\\\\n\ubc18\uc815\ud615 \uae30\ubc95 & Logic Diagram, Cause and Effect Chart, State Transition Diagram, Truth Table, Data Flow Diagram \ub4f1 \uc790\uc5f0\uc5b4\ubcf4\ub2e4 \uad6c\uc870\ud654\ub41c \ud45c\ud604\ubc29\ubc95\uc774\ub2e4. \\\\\n\ubaa8\ub4c8\ud654 & \uae30\ub2a5\uc744 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ub2e8\uc704\ub85c \ubd84\ub9ac\ud558\uc5ec \ubcf5\uc7a1\ub3c4\ub97c \ub0ae\ucd94\uace0 \uc2dc\ud5d8\uacfc \ubcc0\uacbd\uc744 \uc6a9\uc774\ud558\uac8c \ud558\ub294 \uc124\uacc4\uc6d0\uce59\uc774\ub2e4. \\\\\n\ube44\uac04\uc12d\uc131 & \ube44\uc548\uc804 \uae30\ub2a5\uc758 \uc624\ub958\ub098 \uc790\uc6d0\uc0ac\uc6a9\uc774 \uc548\uc804\uad00\ub828 \uae30\ub2a5\uc758 \uc218\ud589\uc744 \ubc29\ud574\ud558\uc9c0 \uc54a\ub294 \uc131\uc9c8\uc774\ub2e4. \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \uc2dc\uac04, \ud1b5\uc2e0 \ubc0f \uc624\ub958\uc804\ud30c\ub97c \uac80\ud1a0\ud55c\ub2e4. \\\\\n\ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d & \uc785\ub825 \ubc94\uc704, \ud0c0\ub2f9\uc131, \uc0c1\ud0dc\uc804\uc774 \ubc0f \uc624\ub958\uc870\uac74\uc744 \uac80\uc0ac\ud558\uc5ec \ube44\uc815\uc0c1 \uc0c1\ud669\uc744 \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\ub294 \ucf54\ub529\ubc29\ubc95\uc774\ub2e4. \\\\\n\uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569 & \ub3d9\uc801 \uac1d\uccb4, \ubb34\uc870\uac74 \ubd84\uae30, \uacfc\ub3c4\ud55c \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130 \ub4f1 \uac80\uc99d\uc744 \uc5b4\ub835\uac8c \ud558\ub294 \uae30\ub2a5\uc744 \uc81c\ud55c\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uaddc\uce59\uc774\ub2e4. \\\\\n\uc9c0\uc6d0\ub3c4\uad6c & Compiler, PLC Engineering Tool, Code Generator, \uc815\uc801\ubd84\uc11d \ub3c4\uad6c, PFD \uacc4\uc0b0 \ud504\ub85c\uadf8\ub7a8 \ub4f1 \uc0dd\uba85\uc8fc\uae30 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ub3c4\uad6c\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\uc2dc\ud5d8, \uc7ac\uc0ac\uc6a9 \ubc0f \uc801\ud569\uc131 \uc785\uc99d}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.25\\textwidth} X}\n\\toprule\n\ud0a4\uc6cc\ub4dc & \uc815\uc758 \\\\\n\\midrule\n\ubaa8\ub4c8\uc2dc\ud5d8 & \uac1c\ubcc4 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774 \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc218\ud589\ud558\uace0 \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4. \\\\\n\ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8 & \ubaa8\ub4c8\uc744 \ub2e8\uacc4\uc801\uc73c\ub85c \uacb0\ud569\ud558\uc5ec \uae30\ub2a5, \uc778\ud130\ud398\uc774\uc2a4, Black Box \ub3d9\uc791 \ubc0f \uc131\ub2a5\uc744 \ud655\uc778\ud558\ub294 \uc2dc\ud5d8\uc774\ub2e4. \\\\\n\uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 & \uc694\uad6c\uc0ac\ud56d, \ucf54\ub4dc\uacbd\ub85c, \uacbd\uacc4\uc870\uac74 \ub610\ub294 \uc0c1\ud0dc\uc870\ud569\uc774 \uc2dc\ud5d8\uc73c\ub85c \uc5bc\ub9c8\ub098 \ud655\uc778\ub418\uc5c8\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\uc774\ub2e4. \\\\\nSafety Manual & \uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uae30\ub2a5, \uad6c\uc131, \uac00\uc815, \uc124\uce58\uc870\uac74, \ub3c4\uad6c\ubc84\uc804, \ubbf8\ud574\uacb0 \uacb0\ud568, \ud638\ud658\uc131, \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d \ubc0f \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\uc744 \uc81c\uacf5\ud558\ub294 \ubb38\uc11c\uc774\ub2e4. \\\\\nTrusted\/Verified Module & \uc774\uc804\uc5d0 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub418\uc5c8\uac70\ub098 \uc720\uc0ac\ud55c \uc6a9\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ub41c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc774\ub2e4. \ud604\uc7ac \ud658\uacbd\uc5d0 \ub300\ud55c \uc801\ud569\uc131 \uac80\ud1a0\ub294 \ubcc4\ub3c4\ub85c \ud544\uc694\ud558\ub2e4. \\\\\nData-driven System & \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc758 \uae30\ub2a5\uc744 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uad6c\uc131\ud558\uc5ec \uc751\uc6a9\uae30\ub2a5\uc744 \ub9cc\ub4dc\ub294 \uc2dc\uc2a4\ud15c\uc774\ub2e4. \\\\\n\uc815\uc801\ubd84\uc11d & \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc5f0\uc0b0\uad00\uacc4\ub97c \ubd84\uc11d\ud558\ub294 \uae30\ubc95\uc774\ub2e4. \\\\\n\ud615\uc2dd\uae30\ubc95 & \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \ud45c\ud604\ud558\uace0 \uac80\uc99d\ud558\ub294 \uae30\ubc95\uc774\ub2e4. \\\\\n\uc801\ud569\uc131 \uc785\uc99d & \ud45c\uc900\uc758 \uac01 \uc694\uad6c\uc0ac\ud56d\uacfc \uc774\ub97c \ucda9\uc871\ud558\ub294 \uacc4\ud68d\uc11c, \uc0ac\uc591\uc11c, \uc124\uacc4\uc11c, \uac80\ud1a0\uc11c \ubc0f \uc2dc\ud5d8\uc131\uc801\uc11c\ub97c \uc5f0\uacb0\ud558\ub294 \ubb38\uc11c\ud654 \ud65c\ub3d9\uc774\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n% =========================================================\n\\section{\ud0a4\uc6cc\ub4dc \uac04 \uad00\uacc4}\n% =========================================================\n\n\\subsection{V-Model \uad00\uacc4}\n\n\\begin{center}\n\\begin{tikzpicture}[\n x=1cm,y=1cm,\n box\/.style={draw=navy, rounded corners, fill=bluegray, align=center, minimum width=3.6cm, minimum height=0.9cm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray},\n match\/.style={<->, dashed, thick, draw=accent}\n]\n\\node[box] (ssrs) at (0,4.8) {\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d};\n\\node[box] (arch) at (1.1,3.5) {\uc544\ud0a4\ud14d\ucc98\u00b7\uc911\uac04\uc124\uacc4};\n\\node[box] (module) at (2.2,2.2) {\ubaa8\ub4c8 \uc0c1\uc138\uc124\uacc4};\n\\node[box] (code) at (3.3,0.9) {\ucf54\ub529};\n\\node[box] (ut) at (4.4,2.2) {\ubaa8\ub4c8\uc2dc\ud5d8};\n\\node[box] (it) at (5.5,3.5) {\ud1b5\ud569\uc2dc\ud5d8};\n\\node[box] (val) at (6.6,4.8) {\uc804\uccb4\uc2dc\ud5d8\u00b7Validation};\n\\draw[arrow] (ssrs) -- (arch);\n\\draw[arrow] (arch) -- (module);\n\\draw[arrow] (module) -- (code);\n\\draw[arrow] (code) -- (ut);\n\\draw[arrow] (ut) -- (it);\n\\draw[arrow] (it) -- (val);\n\\draw[match] (ssrs) -- node[above, font=\\scriptsize]{\uc694\uad6c\uc0ac\ud56d \ucda9\uc871} (val);\n\\draw[match] (arch) -- node[above, font=\\scriptsize]{\uad6c\uc870\u00b7\uc778\ud130\ud398\uc774\uc2a4} (it);\n\\draw[match] (module) -- node[above, font=\\scriptsize]{\ubaa8\ub4c8 \uae30\ub2a5} (ut);\n\\node[align=center, text=darkgray, font=\\small] at (0.2,0.9) {\uc124\uacc4\uc758 \uad6c\uccb4\ud654\\\\\\textbf{Verification \uacc4\ud68d \ud3ec\ud568}};\n\\node[align=center, text=darkgray, font=\\small] at (6.4,0.9) {\uc2dc\ud5d8\uc758 \ud1b5\ud569\\\\\\textbf{Evidence \ucd95\uc801}};\n\\end{tikzpicture}\n\\end{center}\n\n\\begin{keybox}{V-Model\uc758 \ud575\uc2ec}\nV-Model\uc740 \ucf54\ub529 \ud6c4 \uc2dc\ud5d8\uc744 \uc2dc\uc791\ud558\ub294 \ubc29\uc2dd\uc774 \uc544\ub2c8\ub2e4. \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc791\uc131\ud560 \ub54c \ub300\uc751 \uc2dc\ud5d8\ubc29\ubc95\uacfc \ud569\uaca9\uae30\uc900\uc744 \ud568\uaed8 \uc815\ud558\uace0, \uac01 \uac1c\ubc1c\ub2e8\uacc4\uc758 \uacb0\uacfc\ub97c \ub300\uc751 \uc2dc\ud5d8\ub2e8\uacc4\uc5d0\uc11c \ud655\uc778\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.\n\\end{keybox}\n\n\\subsection{Verification\uacfc Validation\uc758 \ucc28\uc774}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X X}\n\\toprule\n\uad6c\ubd84 & Verification & Validation \\\\\n\\midrule\n\ud575\uc2ec \uc9c8\ubb38 & \uac01 \uc0b0\ucd9c\ubb3c\uc744 \uc62c\ubc14\ub974\uac8c \ub9cc\ub4e4\uc5c8\ub294\uac00? & \uc644\uc131\ub41c \uc2dc\uc2a4\ud15c\uc774 \uc804\uccb4 \uc548\uc804\ubaa9\uc801\uc744 \ub9cc\uc871\ud558\ub294\uac00? \\\\\n\uc801\uc6a9 \uc2dc\uc810 & \uc694\uad6c\uc0ac\ud56d, \uc124\uacc4, \ucf54\ub529, \ubaa8\ub4c8\ud1b5\ud569 \ub4f1 \uac01 \ub2e8\uacc4 & \uc804\uccb4 \uc2dc\uc2a4\ud15c \ud1b5\ud569 \ud6c4 \ucd5c\uc885 \ud655\uc778 \\\\\n\uc8fc\uc694 \ubc29\ubc95 & Review, Code Review, \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 & Acceptance Test, \uc694\uad6c\uc0ac\ud56d\ubcc4 \uc885\ud569 \ud655\uc778, \uc808\ucc28 \uc900\uc218 \ud655\uc778 \\\\\n\uc8fc\uc694 \uc99d\uac70 & \uac80\ud1a0\uae30\ub85d, \ubaa8\ub4c8\uc2dc\ud5d8\uc131\uc801\uc11c, \ud1b5\ud569\uc2dc\ud5d8\uc131\uc801\uc11c & Validation Plan, \ucd5c\uc885 \uc2dc\ud5d8\uacb0\uacfc, \ubd88\uc77c\uce58 \uc885\uacb0\uae30\ub85d \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{SIL \uc0c1\uc2b9\uc5d0 \ub530\ub978 \uc694\uad6c\uc218\uc900}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.22\\textwidth} X X X}\n\\toprule\n\ud56d\ubaa9 & SIL 1--2 & SIL 3 & SIL 4 \\\\\n\\midrule\n\uc694\uad6c\uc0ac\ud56d \ud45c\ud604 & \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95 & \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95 & \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uacfc \ud575\uc2ec\ubd80\ubd84\uc758 \ucef4\ud4e8\ud130 \uc9c0\uc6d0 \\\\\n\ucf54\ub529 & \uad6c\uc870\ud654\u00b7\uc81c\ud55c\ub41c \uc5b8\uc5b4, SIL 2 \uc774\uc0c1 \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30 \uae08\uc9c0 & \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d, \uc778\ud130\ub7fd\ud2b8\u00b7\ud3ec\uc778\ud130\u00b7\uc7ac\uadc0 \uc81c\ud55c \uac15\ud654 & SIL 3 \uc218\uc900\uc5d0 \ub354 \uc5c4\uaca9\ud55c \uc801\uc6a9 \\\\\n\uc2dc\ud5d8 & \uacbd\uacc4\uac12\uc2dc\ud5d8, \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8 & \uc911\uc694 \uc0ac\uac74\uc758 Cause-Consequence \uae30\ubc18 \uc2dc\ud5d8 \ucd94\uac00 & SIL 3 \uc218\uc900\uc5d0 \ub354 \ub192\uc740 \uc5c4\uaca9\uc131 \\\\\nValidation & SIL 2 \uc774\uc0c1 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c \uc81c\uc2dc & \uc815\ud655\uc131\u00b7\uc77c\uad00\uc131\u00b7\ucf54\ub529\uaddc\uce59 \uc900\uc218\uc758 \uac15\ud654\ub41c \ud655\uc778 & \ud615\uc2dd\uae30\ubc95 \ub4f1\uc744 \ud3ec\ud568\ud55c \ucd5c\uace0 \uc218\uc900\uc758 \ud655\uc778 \\\\\n\ubcc0\uacbd \ud6c4 & SIL 1 \ubcc0\uacbd \ubaa8\ub4c8, SIL 2 \uc601\ud5a5 \ubaa8\ub4c8 \uc7ac\uac80\uc99d & \uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation & \uc804\uccb4 \uc2dc\uc2a4\ud15c \uc7acValidation\uacfc \ub354 \uc5c4\uaca9\ud55c \uc99d\uac70 \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac\uc640 \uc2dc\ud5d8\uc99d\uac70\uc758 \uad00\uacc4}\n\n\\begin{center}\n\\begin{tikzpicture}[\n node distance=7mm,\n box\/.style={draw=navy2, rounded corners, fill=palegreen, align=center, minimum height=9mm, text width=32mm, font=\\small},\n arrow\/.style={-{Latex[length=2mm]}, thick, draw=darkgray}\n]\n\\node[box] (ci) {\ud615\uc0c1\ud56d\ubaa9 \uc2dd\ubcc4};\n\\node[box, right=of ci] (base) {Baseline \uc2b9\uc778};\n\\node[box, right=of base] (test) {\uc2b9\uc778 \ud615\uc0c1 \uc2dc\ud5d8};\n\\node[box, below=of test] (release) {Release \uc2b9\uc778};\n\\node[box, left=of release] (install) {\ud604\uc7a5 \uc124\uce58\ubcf8 \ud655\uc778};\n\\node[box, left=of install] (change) {\ubcc0\uacbd\uc694\uccad\u00b7\uc601\ud5a5\ubd84\uc11d};\n\\draw[arrow] (ci) -- (base);\n\\draw[arrow] (base) -- (test);\n\\draw[arrow] (test) -- (release);\n\\draw[arrow] (release) -- (install);\n\\draw[arrow] (install) -- (change);\n\\draw[arrow] (change) -- (ci);\n\\end{tikzpicture}\n\\end{center}\n\n\\begin{summarybox}\n\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\ud5d8\ud55c \ud615\uc0c1\uc758 \ubc84\uc804\uc774 \uba85\ud655\ud560 \ub54c\ub9cc \uc720\ud6a8\ud55c \uc99d\uac70\uac00 \ub41c\ub2e4. \ud615\uc0c1\uad00\ub9ac\ub294 \uc124\uacc4\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, \uc2dc\ud5d8\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4, Release\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \ub3d9\uc77c\ud558\ub2e4\ub294 \uac83\uc744 \ubcf4\uc99d\ud55c\ub2e4.\n\\end{summarybox}\n\n% =========================================================\n\\section{\uc6d0\ubb38 \ud750\ub984\uc5d0 \ub530\ub978 \uc124\uba85}\n% =========================================================\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uc758 \uc870\uc9c1\uacfc \uad00\ub9ac}\n\n\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc740 \uae30\ub2a5\uc548\uc804\uad00\ub9ac\uccb4\uacc4 \uc548\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud55c\ub2e4. \uac1c\ubc1c\uacc4\ud68d\uc5d0\ub294 \uc870\ub2ec, \uac1c\ubc1c, \ud1b5\ud569, Verification, Validation, \ubcc0\uacbd, \ud615\uc0c1\ud56d\ubaa9, \uc0b0\ucd9c\ubb3c \ubc0f \ucc45\uc784\uc790\ub97c \ud3ec\ud568\ud55c\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc758 \ubcf5\uc7a1\ub3c4\uc640 \ubaa9\ud45c SIL\uc5d0 \ub9de\ucd94\uc5b4 \uc0dd\uba85\uc8fc\uae30\ub97c \uc815\uc758\ud558\uace0 \ubb38\uc11c\ub85c \uc124\uba85\ud574\uc57c \ud55c\ub2e4.\n\n\ud45c\uc900\uc740 V-Model\uc744 \uad8c\uace0\ud558\uc9c0\ub9cc Waterfall \ub4f1 \ub2e4\ub978 \ubaa8\ub378\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc V-Model\uacfc \ub3d9\ub4f1\ud55c \uc124\uacc4\ub2e8\uacc4, \uac80\uc99d\ub2e8\uacc4, \ucd94\uc801\uc131 \ubc0f \uac80\ud1a0 \ud2b9\uc131\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4. SIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud45c\uc900 \uc0dd\uba85\uc8fc\uae30 \ud65c\ub3d9\uacfc \ub2e4\ub978 \ubd80\ubd84\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\ub2f9\ud654\ud558\uace0 \uac80\ud1a0\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.1 Organizing and Managing the Software Engineering}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac \uc808\ucc28 \uc124\uc815}\n\n\uc6d0\ubb38\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ud615\uc0c1\uad00\ub9ac \uc808\ucc28\uc5d0 \ub2e4\uc74c \ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud3ec\ud568\ud558\ub3c4\ub85d \uc694\uad6c\ud55c\ub2e4.\n\n\\begin{enumerate}\n \\item \ud615\uc0c1\ud1b5\uc81c\ub97c \uc2dc\uc791\ud558\ub294 \uc0dd\uba85\uc8fc\uae30 \ub2e8\uacc4\n \\item \uae30\uc900\uc120\uc744 \uc124\uc815\ud558\ub294 \uc704\uce58\uc640 \uc2b9\uc778\ubc29\ubc95\n \\item \uc694\uad6c\uc0ac\ud56d \ucd94\uc801\ubc29\ubc95\n \\item \ubcc0\uacbd\ud1b5\uc81c \uc808\ucc28\n \\item \ubcc0\uacbd \uc601\ud5a5\ud3c9\uac00\n \\item Release\uc640 \ud3d0\uae30 \uaddc\uce59\n\\end{enumerate}\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \ud615\uc0c1\ud1b5\uc81c\ub97c \uac00\uc7a5 \uc791\uc740 \ucef4\ud30c\uc77c \ubaa8\ub4c8 \ub610\ub294 \ub2e8\uc704\uae4c\uc9c0 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.1, software configuration management process}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uba85\uc138\uc11c \uc791\uc131}\n\nSoftware Safety Requirements Specification\uc5d0\ub294 \uc548\uc804\uae30\ub2a5\uacfc \uc548\uc804\ubb34\uacb0\uc131 \uc694\uad6c\uc0ac\ud56d\uc744 \ud568\uaed8 \uaddc\uc815\ud55c\ub2e4. \uc6d0\ubb38\uc774 \uc81c\uc2dc\ud558\ub294 \uc8fc\uc694 \ud56d\ubaa9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \ucc98\ub9ac\uc6a9\ub7c9\uacfc \uc751\ub2f5\uc2dc\uac04\n \\item \uc7a5\ube44 \ubc0f \uc6b4\uc804\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc624\uc0ac\uc6a9\n \\item \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc790\uae30\uac10\uc2dc\n \\item \uc548\uc804\uc0c1\ud0dc\ub97c \uac15\uc81c\ud558\ub294 \uae30\ub2a5\n \\item \ub370\uc774\ud130 \uc800\uc7a5\uacf5\uac04\uc758 Overflow\uc640 Underflow\n \\item \ub370\uc774\ud130 \uc190\uc0c1\n \\item \ud5c8\uc6a9\ubc94\uc704\ub97c \ubc97\uc5b4\ub09c \uac12\n \\item \uc6b4\uc804 \uc911 \uc548\uc804\uae30\ub2a5\uc758 \uc8fc\uae30\uc801 \uc2dc\ud5d8\n \\item \ubaa8\ub4e0 \uc6b4\uc804\ubaa8\ub4dc, \uc720\uc9c0\ubcf4\uc218 \uc694\uad6c, \ub0b4\ubd80\u00b7\uc678\ubd80 \uc778\ud130\ud398\uc774\uc2a4\n\\end{itemize}\n\n\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc815\ud655\ud558\uba70 \ubaa8\ud638\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. \ub610\ud55c \uc0c1\uc704 \uc548\uc804\uc0ac\uc591\uacfc \uad00\ub828 \ubb38\uc11c\uae4c\uc9c0 \ucd94\uc801\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \uba85\uc138\ub294 \ud615\uc0c1\ud1b5\uc81c \ub2e8\uc704\uae4c\uc9c0 \ub0b4\ub824\uac00\uc57c \ud55c\ub2e4.\n\n\\begin{practicebox}{\uc2dc\ud5d8 \uac00\ub2a5\ud55c \uc694\uad6c\uc0ac\ud56d\uc758 \uc608}\n\ubaa8\ud638\ud55c \ud45c\ud604: ``\uc774\uc0c1\uc555\ub825\uc774 \ubc1c\uc0dd\ud558\uba74 \uc2e0\uc18d\ud788 \uc815\uc9c0\ud55c\ub2e4.''\n\n\uc2dc\ud5d8 \uac00\ub2a5\ud55c \ud45c\ud604: ``\uc555\ub825\uc774 \uc124\uc815\uac12 \uc774\uc0c1\uc73c\ub85c \uc9c0\uc815\ub41c \uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ub418\uba74 \ucc28\ub2e8\ucd9c\ub825\uc744 \uc815\ud574\uc9c4 \uc751\ub2f5\uc2dc\uac04 \uc774\ub0b4\uc5d0 \ubc1c\uc0dd\uc2dc\ud0a4\uace0, \uc218\ub3d9 Reset \uc804\uae4c\uc9c0 \uc7ac\uae30\ub3d9\uc744 \uae08\uc9c0\ud55c\ub2e4.''\n\\end{practicebox}\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ubc18\uc815\ud615 \uae30\ubc95\uc744 \uc801\uc6a9\ud55c\ub2e4. SIL 4\uc5d0\uc11c\ub294 \ud575\uc2ec \uc548\uc804\ubd80\ubd84\uc5d0 \ucef4\ud4e8\ud130 \uc9c0\uc6d0\ub3c4\uad6c\ub97c \ucd94\uac00\ud55c\ub2e4.\n\n\\sourcepara{4.2 Requirements Involving the Specification}\n\n\\subsection{\uc544\ud0a4\ud14d\ucc98 \uc124\uacc4\uc640 \ube44\uac04\uc12d\uc131}\n\n\uc124\uacc4\ubc29\ubc95\uc740 \ubaa8\ub4c8\ud654\ub97c \uc9c0\uc6d0\ud558\uace0 \ubcf5\uc7a1\ub3c4\ub97c \uc904\uc5ec\uc57c \ud55c\ub2e4. \uae30\ub2a5, \uc815\ubcf4\ud750\ub984, \ub370\uc774\ud130\uad6c\uc870, \uc2e4\ud589\uc21c\uc11c, \uc2dc\uac04\uc81c\uc57d \ubc0f \uc124\uacc4\uac00\uc815\uc744 \uba85\ud655\ud558\uac8c \ud45c\ud604\ud574\uc57c \ud55c\ub2e4.\n\n\uc2dc\uc2a4\ud15c \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \ub2e4\uc74c \uc9c4\ub2e8\uae30\ub2a5\uc744 \ud3ec\ud568\ud574\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc2dc\uc2a4\ud15c \ud558\ub4dc\uc6e8\uc5b4 \uace0\uc7a5 \uc9c4\ub2e8\n \\item \ud1b5\uc2e0\ub9c1\ud06c \uc624\ub958 \uac80\ucd9c\n \\item \ud45c\uc900 \uc751\uc6a9\ubaa8\ub4c8\uc758 \uc628\ub77c\uc778 \uc2dc\ud5d8\n \\item \uace0\uc7a5 \uac80\ucd9c \uc2dc \uace0\uc7a5 \uc694\uc18c\ub97c \uaca9\ub9ac\ud558\uac70\ub098 \uc548\uc804\uc0c1\ud0dc\ub85c \uc804\ud658\ud558\ub294 \ucc98\ub9ac\n\\end{itemize}\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 Watchdog\uc640 \uc9c1\ub82c\ud1b5\uc2e0 \uc624\ub958\uac80\ucd9c \uac19\uc740 \uae30\ubcf8 \uc9c4\ub2e8\uc774 \ud544\uc694\ud558\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc13c\uc11c, I\/O \ud68c\ub85c, \ub17c\ub9ac\ucc98\ub9ac\ubd80, \ucd9c\ub825\uc694\uc18c, \ud1b5\uc2e0 \ubc0f \uba54\ubaa8\ub9ac\uae4c\uc9c0 \uace0\uc7a5\uac80\ucd9c\uc744 \ud655\ub300\ud55c\ub2e4.\n\n\uc548\uc804\uae30\ub2a5\uacfc \ube44\uc548\uc804\uae30\ub2a5\uc774 \uac19\uc740 \ud50c\ub7ab\ud3fc\uc5d0 \uc874\uc7ac\ud558\uba74 \ube44\uac04\uc12d\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \uac80\ud1a0\ub300\uc0c1\uc740 \uacf5\uc720 RAM, \uc8fc\ubcc0\uc7a5\uce58, CPU \ucc98\ub9ac\uc2dc\uac04, \uae30\ub2a5 \uac04 \ud1b5\uc2e0 \ubc0f \ud55c \uc694\uc18c\uc758 \uc624\ub958\uac00 \ub2e4\ub978 \uc694\uc18c\ub85c \uc804\ud30c\ub418\ub294 \uac00\ub2a5\uc131\uc774\ub2e4.\n\n\\sourcepara{4.3.1 Features of the Design and Architecture}\n\n\\subsection{\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529}\n\n\uc0c1\uc138\uc124\uacc4\uc640 \ucf54\ub529\uc740 \uc791\uace0 \uad00\ub9ac \uac00\ub2a5\ud55c \ubaa8\ub4c8\uc744 \ub9cc\ub4e4\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ubc18\uc815\ud615 \uc124\uacc4\ubc29\ubc95, \uc124\uacc4\ud45c\uc900, \ucf54\ub529\ud45c\uc900 \ubc0f \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uac00\ub2a5\ud55c \ud55c \uc720\uc0ac\ud55c \uc751\uc6a9\uc5d0\uc11c \uc0ac\uc6a9\ub418\uace0 \uc2dc\ud5d8\ub41c Trusted\/Verified Module\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc7ac\uc0ac\uc6a9 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ud604\uc7ac \uc2dc\uc2a4\ud15c \uc801\ud569\uc131\uc774 \uc790\ub3d9 \ubcf4\uc7a5\ub418\uc9c0\ub294 \uc54a\ub294\ub2e4. \uc801\uc6a9\ud658\uacbd\uacfc \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud655\uc778\ud574\uc57c \ud55c\ub2e4.\n\n\uc624\ud504\ub77c\uc778 \ub3c4\uad6c\ub85c \ucda9\ubd84\ud788 \ud655\uc778\ud558\uae30 \uc5b4\ub824\uc6b4 \ub3d9\uc801 \uac1d\uccb4\ub294 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \ubcc0\uc218\uc758 \ubc94\uc704\uc640 \uac00\ub2a5\ud558\uba74 \ud0c0\ub2f9\uc131\uc744 \ud568\uaed8 \uac80\uc0ac\ud558\ub294 \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud558\uba70, \uc778\ud130\ub7fd\ud2b8, \ud3ec\uc778\ud130 \ubc0f \uc7ac\uadc0\uc758 \uc0ac\uc6a9\uc744 \uc81c\ud55c\ud55c\ub2e4.\n\n\\sourcepara{4.3.2 Detailed Design and Coding}\n\n\\subsection{\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc640 \uc9c0\uc6d0\ub3c4\uad6c}\n\n\ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub294 \uc644\uc804\ud558\uace0 \ubaa8\ud638\ud558\uc9c0 \uc54a\uac8c \uc815\uc758\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \ubaa8\ub4e0 SIL\uc5d0\uc11c \ucf54\ub529\ud45c\uc900\uacfc \uc81c\ud55c\ub41c \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc0ac\uc6a9\ud55c\ub2e4.\n\n\\begin{itemize}\n \\item SIL 2 \uc774\uc0c1: \ub3d9\uc801 \uac1d\uccb4\uc640 \ubb34\uc870\uac74 \ubd84\uae30\ub97c \uae08\uc9c0\ud55c\ub2e4.\n \\item SIL 3\uacfc SIL 4: \uc778\ud130\ub7fd\ud2b8\uc640 \ud3ec\uc778\ud130 \uc81c\ud55c\uc744 \uac15\ud654\ud558\uace0, \ub3c4\uad6c \uc624\ub958\uc5d0 \ub300\ube44\ud55c \ub2e4\uc591\uc131 \uae30\ub2a5\uc744 \uac80\ud1a0\ud55c\ub2e4.\n\\end{itemize}\n\n\uc9c0\uc6d0\ub3c4\uad6c\ub294 \ucda9\ubd84\ud55c \uc0ac\uc6a9\uc2e4\uc801\uc774 \uc788\uace0 \uc54c\ub824\uc9c4 \uc624\ub958\uac00 \ud574\uacb0\ub418\uc5c8\uac70\ub098 \uc548\uc804\uc2dc\uc2a4\ud15c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc778\uc99d\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc778\uc99d\ub41c \ub3c4\uad6c\uac00 \ub354 \uac15\ud558\uac8c \uad8c\uace0\ub41c\ub2e4.\n\n\uc774 \uc694\uad6c\ub294 Compiler\ub098 PLC \ub3c4\uad6c\uc5d0\ub9cc \uc801\uc6a9\ub418\uc9c0 \uc54a\ub294\ub2e4. \uc548\uc804\ub8e8\ud504 PFD \ub610\ub294 \uace0\uc7a5\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \uc624\ud504\ub77c\uc778 \ud328\ud0a4\uc9c0\ub3c4 \uc644\uc804\uc131\uacfc \uc815\ud655\uc131\uc744 \ud3c9\uac00\ud558\uace0 \uba85\ud655\ud55c \uc0ac\uc6a9\uc124\uba85\uc11c\ub97c \uc81c\uacf5\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.3.3 Programming Language and Support Tools}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubaa8\ub4c8\uc2dc\ud5d8\uacfc \ud1b5\ud569\uc2dc\ud5d8}\n\n\uac01 \ubaa8\ub4c8\uc740 Code Review\uc640 \uc2dc\ud5d8\uc744 \ubc1b\uc544\uc57c \ud55c\ub2e4. \uc2dc\ud5d8\ubaa9\ud45c\ub294 \ub2e4\uc74c \ub450 \uac00\uc9c0\uc774\ub2e4.\n\n\\begin{enumerate}\n \\item \uc758\ub3c4\ud55c \uae30\ub2a5\uc744 \uc815\ud655\ud788 \uc218\ud589\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n \\item \uc81c\ud55c\ub41c \ube44\uc815\uc0c1 \ub370\uc774\ud130\ub85c \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uc9c0 \uc54a\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n\\end{enumerate}\n\n\ubaa8\ub4c8\uc2dc\ud5d8 \ud6c4\uc5d0\ub294 \uc0ac\uc804\uc5d0 \uc815\uc758\ud55c \uc2dc\ud5d8\uc0ac\ub840\uc640 \uc2dc\ud5d8\ub370\uc774\ud130\ub85c \ubaa8\ub4c8 \ud1b5\ud569\uc2dc\ud5d8\uc744 \uc218\ud589\ud55c\ub2e4. \uae30\ub2a5\uc2dc\ud5d8, Black Box \uc2dc\ud5d8 \ubc0f \uc131\ub2a5\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4.\n\n\uc2dc\ud5d8\uacb0\uacfc\ub294 \uc2dc\uac04\uc21c\uc73c\ub85c \uae30\ub85d\ud55c\ub2e4. \ubaa8\ub4c8\ubc84\uc804\uacfc \uc2dc\ud5d8\uc808\ucc28\uc11c \ubc84\uc804\uc744 \uba85\uc2dc\ud558\uace0 \uc608\uc0c1\uacb0\uacfc\uc640 \uc2e4\uc81c\uacb0\uacfc\uc758 \ubd88\uc77c\uce58\ub97c \uba85\ud655\ud558\uac8c \ud45c\uc2dc\ud55c\ub2e4. \uc2dc\ud5d8 \uc774\ud6c4 \ubcc0\uacbd\uc774 \ubc1c\uc0dd\ud558\uba74 \uc601\ud5a5\ubd84\uc11d\uc73c\ub85c \uc7ac\uc2dc\ud5d8 \ubc94\uc704\ub97c \uacb0\uc815\ud55c\ub2e4.\n\nSIL 1\uacfc SIL 2\uc5d0\uc11c\ub294 \uacbd\uacc4\uac12\uc2dc\ud5d8\uacfc \uc785\ub825\uc601\uc5ed \ubd84\ud560\uc2dc\ud5d8\uc744 \ud3ec\ud568\ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc911\uc694\ud55c \uc0ac\uac74\uc758 Cause-Consequence \ubd84\uc11d\uc5d0\uc11c \ub3c4\ucd9c\ud55c \uc2dc\ud5d8\uc744 \ucd94\uac00\ud55c\ub2e4.\n\n\\sourcepara{4.4.1 Software Module Testing and Integration}\n\n\\subsection{\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8}\n\n\uc804\uccb4 \ud1b5\ud569\uc2dc\ud5d8\uc740 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud3ec\ud568\ud558\ub294 \ud1b5\ud569 \uc2dc\uc2a4\ud15c\uc744 \uc2dc\ud5d8\ud55c\ub2e4. \uc774 \ub2e8\uacc4\ub294 Factory Acceptance Test\uae4c\uc9c0 \uc774\uc5b4\uc9c8 \uc218 \uc788\ub2e4. \uc2dc\ud5d8 Harness\ub3c4 \uc2dc\ud5d8\uc7a5\ube44\uc758 \uc77c\ubd80\uc774\ubbc0\ub85c \uc124\uacc4\ubb38\uc11c\uc640 \uc801\ud569\uc131 \ud655\uc778\uc774 \ud544\uc694\ud558\ub2e4.\n\n\uc6d0\ubb38\uc740 \uc2dc\ud5d8\uae30\ub85d\uc744 \ud2b9\ud788 \uac15\uc870\ud55c\ub2e4. \uc2dc\ud5d8\uae30\ub85d\uc740 \uc2dc\ud5d8\uacb0\uacfc\ub97c \ud655\uc778\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uac00\uc2dc\uc801 \uc99d\uac70\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.\n\n\\sourcepara{4.4.2 Overall Integration Testing}\n\n\\subsection{Validation}\n\nValidation\uc740 \ucd5c\uc885 \uc2dc\uc2a4\ud15c\uc774 \ubaa8\ub4e0 \ubaa9\ud45c\ub97c \ub9cc\uc871\ud558\uace0 \uc124\uacc4\uc808\ucc28\uac00 \uc900\uc218\ub418\uc5c8\uc74c\uc744 \ud655\uc778\ud55c\ub2e4. Validation Plan\uc740 \uc804\uccb4 \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc774 \uc5b4\ub5bb\uac8c \ud655\uc778\ub418\ub294\uc9c0\ub97c \ubcf4\uc5ec\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc0dd\uba85\uc8fc\uae30 \uc804\uccb4\uc640 \uac10\uc0ac\uc2dc\uc810\n \\item \uad6c\uccb4\uc801\uc778 \ud569\uaca9\u00b7\ubd88\ud569\uaca9 \uae30\uc900\n \\item \uc120\uc815\ud55c Validation \ubc29\ubc95\uacfc \uc120\uc815 \uadfc\uac70\n \\item \ubd80\uc801\ud569 \uc0ac\ud56d\uc758 \ucc98\ub9ac\ubc29\ubc95\n\\end{itemize}\n\nSIL 2 \uc774\uc0c1\uc5d0\uc11c\ub294 \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\uac00 \uc81c\uc2dc\ub418\uc5b4\uc57c \ud55c\ub2e4. SIL 3\uacfc SIL 4\uc5d0\uc11c\ub294 \uc815\ud655\uc131, \uc77c\uad00\uc131 \ubc0f \ucf54\ub529\uaddc\uce59 \ub4f1 \ud45c\uc900 \uc900\uc218\ub97c \ub354\uc6b1 \uc5c4\uaca9\ud558\uac8c \ud655\uc778\ud55c\ub2e4.\n\n\\sourcepara{4.5 Validation}\n\n\\subsection{\uc7ac\uc0ac\uc6a9 \uc694\uc18c\uc758 Safety Manual}\n\n\uc7ac\uc0ac\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc694\uc18c\uc5d0\ub294 Safety Manual\uc774 \ud544\uc694\ud558\ub2e4. \uc8fc\uc694 \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \uc694\uc18c\uc758 \uae30\ub2a5\uacfc \uc18d\uc131\n \\item \uad6c\uc131\uacfc \uc124\uacc4\uac00\uc815\n \\item \ud1b5\ud569\uc790\uc5d0\uac8c \uc694\uad6c\ub418\ub294 \ucd5c\uc18c \uc9c0\uc2dd\n \\item \uc694\uc18c\uc5d0 \uc758\uc874\ud558\ub294 \uc815\ub3c4\n \\item \uc124\uce58\ubc29\ubc95\uacfc Release \uc0ac\uc720\n \\item \ubbf8\ud574\uacb0 \uacb0\ud568\uacfc \ucd94\uac00\ub41c \uae30\ub2a5\n \\item \uc774\uc804 \ubc84\uc804 \ubc0f \ub2e4\ub978 \uc2dc\uc2a4\ud15c\uacfc\uc758 \ud638\ud658\uc131\n \\item \uc6b4\uc601\uccb4\uc81c \uc758\uc874\uc131\n \\item Compiler\uc640 \ub3c4\uad6c\uc758 \uc2dd\ubcc4\uc815\ubcf4\uc640 \ubc84\uc804\n \\item \uc694\uc18c\uc758 \uba85\uce6d, \ubc84\uc804, \uac1c\uc815\uc0c1\ud0dc\n \\item \ubcc0\uacbd\ud1b5\uc81c\uc640 \ubcc0\uacbd\uc694\uccad \ubc29\ubc95\n \\item \uc778\ud130\ud398\uc774\uc2a4\uc640 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4 \uc81c\uc57d\n \\item Safety Manual \uc8fc\uc7a5\uc5d0 \ub300\ud55c \uc815\ub2f9\ud654\n\\end{itemize}\n\nSafety Manual\uc740 \ub2e8\uc21c\ud55c \uc778\uc99d\uc11c\uac00 \uc544\ub2c8\ub2e4. \uc7ac\uc0ac\uc6a9 \uc694\uc18c\ub97c \uc5b4\ub5a4 \uc870\uac74\uacfc \uc81c\ud55c \uc548\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\ub824\uc8fc\ub294 \ud1b5\ud569 \uc9c0\uce68\uc774\ub2e4.\n\n\\sourcepara{4.6 Safety Manuals}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \ubcc0\uacbd}\n\n\ubaa8\ub4e0 \ubcc0\uacbd\uc5d0\ub294 \ubcc0\uacbd\ub85c\uadf8, \uac1c\uc815\uad00\ub9ac, \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5\ubd84\uc11d \ubc0f \uc7ac\uc2dc\ud5d8\uc774 \ud544\uc694\ud558\ub2e4. \ubcc0\uacbd\uc808\ucc28\ub294 \ucd5c\ucd08 \uc124\uacc4 \ub54c \uc801\uc6a9\ud55c \ubc29\ubc95\uacfc \ucd5c\uc18c\ud55c \ub3d9\ub4f1\ud574\uc57c \ud55c\ub2e4. \ubcc0\uacbd\uae30\ub85d\uc5d0\ub294 \ubcc0\uacbd\ub41c \ubb38\uc11c\uc640 \ubcc0\uacbd\ub0b4\uc6a9\uc744 \uba85\ud655\ud788 \ud45c\uc2dc\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X}\n\\toprule\n\ubaa9\ud45c SIL & \ubcc0\uacbd \ud6c4 \uc694\uad6c\ub418\ub294 \ud655\uc778\ubc94\uc704 \\\\\n\\midrule\nSIL 1 & \ubcc0\uacbd\ub41c \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4. \\\\\nSIL 2 & \ubcc0\uacbd\uc73c\ub85c \uc601\ud5a5\uc744 \ubc1b\ub294 \ubaa8\ub4e0 \ubaa8\ub4c8\uc744 \uc7acVerification\ud55c\ub2e4. \\\\\nSIL 3 \uc774\uc0c1 & \uc804\uccb4 \uc2dc\uc2a4\ud15c\uc744 \uc7acValidation\ud55c\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\n\uc18c\ud504\ud2b8\uc6e8\uc5b4\uac00 \ud3ec\ud568\ub41c SIL 3 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \uc804\uccb4 \uc7acValidation\uc774 \uc0c1\ub2f9\ud55c \ube44\uc6a9\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \ucd08\uae30\ubd80\ud130 \ubcc0\uacbd\uc601\ud5a5\uc744 \uc81c\ud55c\ud560 \uc218 \uc788\ub3c4\ub85d \ubaa8\ub4c8\ud654\uc640 \ucd94\uc801\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.\n\n\\sourcepara{4.7 Modifications}\n\n\\subsection{\ub300\uccb4\uae30\ubc95\uacfc \uc808\ucc28}\n\n\ud45c\uc900\uc5d0 \uc9c1\uc811 \ub098\uc5f4\ub418\uc9c0 \uc54a\uc740 \ub300\uccb4\uae30\ubc95\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub2e4\ub9cc \ub2e4\uc74c \uc18d\uc131\uc744 \ud3c9\uac00\ud574\uc57c \ud55c\ub2e4.\n\n\\begin{itemize}\n \\item \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc644\uc804\uc131\n \\item \uc548\uc804\uc694\uad6c\uc5d0 \ub300\ud55c \uc815\ud655\uc131\n \\item \uc0ac\uc591 \uc624\ub958\uc640 \ubaa8\ud638\uc131\uc758 \ubd80\uc7ac\n \\item \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc758 \uc774\ud574 \uc6a9\uc774\uc131\n \\item \ube44\uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \ubd80\uc815\uc801 \uac04\uc12d \ubc29\uc9c0\n \\item Verification\uacfc Validation\uc758 \uae30\ubc18 \uc81c\uacf5\n\\end{itemize}\n\n\uc6d0\ubb38\uc740 \ud3c9\uac00\uc218\uc900\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uba85\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.18\\textwidth} p{0.18\\textwidth} X}\n\\toprule\n\uc801\uc6a9 \uc218\uc900 & \ub4f1\uae09 & \uc758\ubbf8 \\\\\n\\midrule\nSIL 1--2 & R1 & \uc81c\ud55c\ub41c \uac1d\uad00\uc801 \ud569\uaca9\uae30\uc900. \uc608: Black Box Test, Field Trial \\\\\nSIL 3 & R2 & \ub192\uc740 \uc2e0\ub8b0\ub3c4\ub97c \uac16\ub294 \uac1d\uad00\uc801 \uae30\uc900. \uc608: \ucee4\ubc84\ub9ac\uc9c0 \uc9c0\ud45c\ub97c \uac16\ub294 \uc2dc\ud5d8 \\\\\nSIL 4 & R3 & \uac1d\uad00\uc801\uc774\uace0 \uccb4\uacc4\uc801\uc778 \ub17c\uc99d. \uc608: Formal Proof \\\\\n\ud574\ub2f9 \uc5c6\uc74c & -- & \uc81c\uc548 \uae30\ubc95\uc5d0 \uad00\ub828\ub418\uc9c0 \uc54a\ub294 \uc18d\uc131 \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\sourcepara{4.8 Alternative Techniques and Procedures}\n\n\\subsection{Data-driven System\uc758 \ub124 \uac00\uc9c0 \uc720\ud615}\n\nData-driven System\uc740 \uae30\ubcf8 \uc2dc\uc2a4\ud15c\uc5d0 \uc785\ub825\ub418\ub294 \ub370\uc774\ud130, \ud30c\ub77c\ubbf8\ud130 \ub610\ub294 \uc81c\ud55c\ub41c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uc751\uc6a9\uae30\ub2a5\uc744 \uad6c\uc131\ud55c\ub2e4. \ubcf5\uc7a1\ub3c4\uc640 \uc0ac\uc6a9\uc790 \uc790\uc720\ub3c4\uc5d0 \ub530\ub77c \uc0dd\uba85\uc8fc\uae30\ub97c Tailoring\ud55c\ub2e4.\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.28\\textwidth} p{0.25\\textwidth} X}\n\\toprule\n\uc720\ud615 & \ub300\ud45c \uc608 & \ud575\uc2ec \ud655\uc778\uc0ac\ud56d \\\\\n\\midrule\nLimited variability configuration \/ Limited application configurability & Smart Sensor, Smart Actuator\uc758 \ud30c\ub77c\ubbf8\ud130 \uc124\uc815 & \uc785\ub825 \ud30c\ub77c\ubbf8\ud130 \uba85\uc138, \uc815\ud655\ud55c \uc801\uc6a9, \ubaa8\ub4e0 \uc870\ud569\uc758 Validation, \ud2b9\uc218 \uc6b4\uc804\ubaa8\ub4dc, \uc778\uc801\uc694\uc778, Interlock \uc720\uc9c0, \uc784\uc758 \uc7ac\uc124\uc815 \ubc29\uc9c0 \\\\\nLimited variability configuration \/ Full application configurability & \ub300\uaddc\ubaa8 \uc815\uc801 \ub370\uc774\ud130\ub85c \uc2dc\uc2a4\ud15c\uc744 \uad6c\uc131\ud558\ub294 \uacbd\uc6b0 & \ub370\uc774\ud130 \uc0dd\uc131 \uc790\ub3d9\ud654\ub3c4\uad6c, \ub370\uc774\ud130 \uc77c\uad00\uc131, \uaddc\uce59 \uc900\uc218, \ub370\uc774\ud130 \uc900\ube44\uc2dc\uc2a4\ud15c \uc778\ud130\ud398\uc774\uc2a4\uc758 \uc720\ud6a8\uc131 \\\\\nLimited variability programming \/ Limited application configurability & Function Block, Ladder Logic, Spreadsheet \uae30\ubc18 \uc2dc\uc2a4\ud15c & \uc751\uc6a9\uc694\uad6c\uc0ac\ud56d, \ud5c8\uc6a9 \uc5b8\uc5b4 \ubd80\ubd84\uc9d1\ud569, \ubd80\ubd84\uc9d1\ud569 \uacb0\ud569 \uc124\uacc4\ubc29\ubc95, \uac00\ub2a5\ud55c \uc2dc\uc2a4\ud15c \uc0c1\ud0dc\uc870\ud569\uc744 \ub2e4\ub8e8\ub294 Verification \ucee4\ubc84\ub9ac\uc9c0 \\\\\nLimited variability programming \/ Full application configurability & \uadf8\ub798\ud53d \uc2dc\uc2a4\ud15c, SCADA \uae30\ubc18 Batch Control & \uc751\uc6a9 \uc544\ud0a4\ud14d\ucc98, Template \uc81c\uacf5, \uac1c\ubcc4 Template Verification, \uc644\uc131\ub41c \uc751\uc6a9\uc758 Verification\uacfc Validation \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\sourcepara{4.9 Data-Driven Systems}\n\n\\subsection{\uc815\uc801\ubd84\uc11d}\n\n\uc815\uc801\ubd84\uc11d\uc740 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uc9c0 \uc54a\uace0 \uc18c\uc2a4\ucf54\ub4dc\ub97c \ub300\uc218\uc801\uc73c\ub85c \ubd84\uc11d\ud55c\ub2e4. \uc81c\uc5b4\ud750\ub984, \ub370\uc774\ud130\ud750\ub984, \ubcc0\uc218\uc0ac\uc6a9 \ubc0f \uc54c\uace0\ub9ac\uc998\uc758 \uc5f0\uc0b0\uad00\uacc4\ub97c \uac80\ud1a0\ud55c\ub2e4. Part 3\uc758 Table B8\uc740 Data Flow\uc640 Control Flow\ub97c SIL 3\uacfc SIL 4\uc5d0\uc11c Highly Recommended\ub85c \uc81c\uc2dc\ud55c\ub2e4.\n\n\uc815\uc801\ubd84\uc11d\uc758 \ud55c\uacc4\ub3c4 \ubd84\uba85\ud558\ub2e4.\n\n\\begin{itemize}\n \\item \uc5b8\uc5b4\ubcc4 Translator\uc640 \ubd84\uc11d\ub3c4\uad6c\uac00 \ud544\uc694\ud558\ub2e4.\n \\item \uc8fc\ub85c \uc808\ucc28\ud615 \uace0\uae09\uc5b8\uc5b4\uc5d0 \uc801\uc6a9\ub41c\ub2e4.\n \\item PLC \ucf54\ub4dc\ub294 \uc790\ub3d9\ubd84\uc11d \ub300\uc2e0 \uc218\ub3d9 Walkthrough\uc5d0 \uc758\uc874\ud560 \uc218 \uc788\ub2e4.\n \\item \ub17c\ub9ac\uae30\ub2a5\uc740 \ubd84\uc11d\ud558\uc9c0\ub9cc \ud0c0\uc774\ubc0d \ud2b9\uc131\uc740 \uc9c1\uc811 \ub2e4\ub8e8\uc9c0 \ubabb\ud55c\ub2e4.\n \\item \uc815\uc801\ubd84\uc11d\ub9cc\uc73c\ub85c \ucf54\ub4dc\ud488\uc9c8 \uc804\uccb4\ub97c \ubcf4\uc99d\ud558\uc9c0 \ubabb\ud55c\ub2e4.\n\\end{itemize}\n\n\\sourcepara{4.10.1 Static Analysis}\n\n\\subsection{\ud615\uc2dd\uae30\ubc95}\n\n\ud615\uc2dd\uae30\ubc95\uc740 \uc218\ud559\uc801 \ud45c\uae30\uc640 \ub17c\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4\ub97c \uc5c4\ubc00\ud558\uac8c \uc815\uc758\ud55c\ub2e4. \uc7a5\uc810\uc740 \uc0dd\uba85\uc8fc\uae30 \ucd08\uae30\uc5d0 \uc7a0\uc7ac\uc624\ub958\ub97c \uc608\ubc29\ud558\uac70\ub098 \ubc1c\uacac\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4. \uc624\ub958\ub97c \uc2dc\uc6b4\uc804\uc774\ub098 \ud604\uc7a5\uc0ac\uc6a9 \ub2e8\uacc4\uc5d0\uc11c \ubc1c\uacac\ud558\ub294 \uac83\ubcf4\ub2e4 \uc218\uc815\ubc94\uc704\uc640 \ube44\uc6a9\uc774 \uc791\ub2e4.\n\n\uadf8\ub7ec\ub098 \ud6c8\ub828\ub41c \uc778\ub825\uacfc \uc801\uc808\ud55c \ub3c4\uad6c\uac00 \ud544\uc694\ud558\uba70, \ubaa8\ub4e0 \uc751\uc6a9\uc5d0 \ubcf4\ud3b8\uc801\uc73c\ub85c \uc801\ud569\ud55c \ud558\ub098\uc758 \ubc29\ubc95\uc740 \uc5c6\ub2e4. \uc6d0\ubb38\uc740 Formal Method\uc640 Formal Proof\ub97c SIL 4\uc5d0\uc11c Highly Recommended, SIL 2\uc640 SIL 3\uc5d0\uc11c Recommended\ub85c \uc124\uba85\ud55c\ub2e4.\n\n\\sourcepara{4.10.2 Use of Formal Methods}\n\n\\subsection{PLC \uc5b8\uc5b4}\n\n\ucd08\uae30\uc758 Ladder Logic\uc740 \ubd84\uae30\ubb38\uc774 \uac70\uc758 \uc5c6\ub294 Limited Variability Language\uc600\uc73c\ubbc0\ub85c \ubaa8\ub4e0 SIL\uc5d0\uc11c \ube44\uad50\uc801 \uc27d\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\uc5c8\ub2e4. \ud604\ub300 PLC\ub294 \uba85\ub839\uc9d1\ud569\uc774 \ud655\ub300\ub418\uace0 \ubd84\uae30\uc640 \ubcf5\uc7a1\ud55c \uae30\ub2a5\uc774 \ucd94\uac00\ub418\uc5c8\ub2e4. \ub530\ub77c\uc11c \ub192\uc740 SIL\uc5d0\uc11c\ub294 \uba85\ub839\uc5b4 \ubd80\ubd84\uc9d1\ud569\uc744 \uc81c\ud55c\ud574\uc57c \ud55c\ub2e4.\n\nIEC 61131-3 \uc5b8\uc5b4\ub97c \uc0ac\uc6a9\ud560 \ub54c\ub3c4 \uc548\uc804\uad00\ub828 \uc751\uc6a9\uc5d0 \uc801\ud569\ud55c Restricted Subset\uc744 \uc815\uc758\ud574\uc57c \ud55c\ub2e4. Cause and Effect Diagram\uc73c\ub85c Shutdown System\uc744 \uc9c1\uc811 \uad6c\uc131\ud558\ub294 \uc804\uc6a9\uc5b8\uc5b4\ub294 \uc548\uc804\uc751\uc6a9\uc744 \uc704\ud574 \uc81c\ud55c\ub41c \ubd80\ubd84\uc9d1\ud569\uc758 \uc0ac\ub840\uc774\ub2e4.\n\n\\sourcepara{4.10.3 PLCs and their Languages}\n\n\\subsection{\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc7ac\uc0ac\uc6a9}\n\n\uc7ac\uc0ac\uc6a9\uc740 \uc774\ubbf8 \uc124\uacc4\u00b7\uc2dc\ud5d8\ub41c \uc0ac\uc591, \uc54c\uace0\ub9ac\uc998 \ub610\ub294 \ucf54\ub4dc\ub97c \ud65c\uc6a9\ud55c\ub2e4. \uae30\ub300\ud6a8\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n\n\\begin{itemize}\n \\item \uae30\uc874 \ucf54\ub4dc\ub098 \uc0ac\uc591\uc5d0 \uc0ac\uc6a9\uc99d\uac70\uac00 \uc788\ub2e4.\n \\item \ud3c9\uade0\ubcf4\ub2e4 \ub9ce\uc740 \uc2dc\ud5d8\uc744 \ubc1b\uc558\uc744 \uc218 \uc788\ub2e4.\n \\item \uc808\uac10\ud55c \uc2dc\uac04\uc744 \ucd94\uac00 \uac1c\ubc1c\uacfc \uc2dc\ud5d8\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.\n \\item \uc2e4\uc81c \uc751\uc6a9\ud658\uacbd\uc5d0\uc11c \uc2dc\ud5d8\ub418\uc5c8\uc744 \uc218 \uc788\ub2e4.\n \\item \uc7ac\uc0ac\uc6a9\uc744 \ubaa9\uc801\uc73c\ub85c \uc124\uacc4\ud55c \uc694\uc18c\ub294 \uacb0\ud569\ub3c4\uac00 \ub0ae\uc744 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4.\n\\end{itemize}\n\n\ubc18\ub300\ub85c \uc0c8\ub85c\uc6b4 \ud658\uacbd\uc5d0\uc11c \uc7a0\uc7ac\uacb0\ud568\uc774 \ub098\ud0c0\ub0a0 \uc218 \uc788\uace0, \ubd88\ud544\uc694\ud55c \uae30\ub2a5 \ub54c\ubb38\uc5d0 \uc218\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc73c\uba70, \ub0b4\ubd80\ub3d9\uc791\uc744 \ucda9\ubd84\ud788 \uc774\ud574\ud558\uc9c0 \ubabb\ud560 \uc218\ub3c4 \uc788\ub2e4. \ub530\ub77c\uc11c \uc7ac\uc0ac\uc6a9\uc758 \uc774\uc810\uc740 \uc801\uc808\ud55c \uc808\ucc28\uc640 \ud1b5\uc81c\uac00 \uc788\uc744 \ub54c\ub9cc \uc5bb\uc744 \uc218 \uc788\ub2e4.\n\n\\sourcepara{4.10.4 Software Reuse}\n\n\\subsection{Software Metrics}\n\nSoftware Metrics\ub294 \ucf54\ub4dc\uc758 \ud06c\uae30, \ubcf5\uc7a1\ub3c4 \ubc0f \uad6c\uc870\ub97c \uce21\uc815\ud55c\ub2e4. \ubd84\uae30\ubb38 \uc218\uac00 \ub300\ud45c\uc801\uc774\ub2e4. \uc2dc\ud5d8 \ucee4\ubc84\ub9ac\uc9c0 \ud1b5\uacc4\ub3c4 Metrics\ub77c\ub294 \uc6a9\uc5b4\ub85c \uc0ac\uc6a9\ub41c\ub2e4.\n\n\uc6d0\ubb38\uc740 Metrics\uc758 \uac00\uce58\uc5d0 \ub300\ud574 \uc0c1\ubc18\ub41c \uacac\ud574\uac00 \uc788\ub2e4\uace0 \uc124\uba85\ud55c\ub2e4. \uc7a5\uae30\uac04 \ud2b9\uc815 \uc0b0\uc5c5\uc774\ub098 \uc81c\ud488\uad70\uc5d0\uc11c \uc77c\uad00\ub418\uac8c \uc218\uc9d1\ud558\uba74 \ud604\uc7a5\uace0\uc7a5 \uc131\ub2a5\uacfc\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \uc5f0\uad6c\ud560 \uc218 \uc788\uc9c0\ub9cc, Metrics\ub9cc\uc73c\ub85c \uc548\uc804\ubb34\uacb0\uc131\uc744 \uc9c1\uc811 \uc785\uc99d\ud558\uae30\uc5d0\ub294 \uc544\uc9c1 \uc81c\ud55c\uc774 \uc788\ub2e4.\n\n\\sourcepara{4.10.5 Software Metrics}\n\n\\subsection{\uc801\ud569\uc131 \uc785\uc99d \ud15c\ud50c\ub9bf}\n\nChapter 4\uc758 \ucd5c\uc885\ubaa9\ud45c\ub294 IEC 61508 Part 3\uc758 \uc694\uad6c\uc0ac\ud56d\uc744 \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8 \uc99d\uac70\uc640 \uc5f0\uacb0\ud558\ub294 \uac83\uc774\ub2e4. Evidence\ub780\uc5d0\ub294 \ub2e4\uc74c \ubb38\uc11c\ub97c \uc5f0\uacb0\ud560 \uc218 \uc788\ub2e4.\n\n\\begin{itemize}\n \\item Software Development Plan\n \\item Software Safety Requirements Specification\n \\item \uc544\ud0a4\ud14d\ucc98 \ubc0f \ubaa8\ub4c8 \uc124\uacc4\uc11c\n \\item \ucf54\ub529\ud45c\uc900\uacfc Code Review \uae30\ub85d\n \\item \ud615\uc0c1\ud56d\ubaa9 \ubaa9\ub85d, Baseline \ubc0f \ubcc0\uacbd\ub85c\uadf8\n \\item \ubaa8\ub4c8\uc2dc\ud5d8\u00b7\ud1b5\ud569\uc2dc\ud5d8\u00b7Acceptance Test \uacb0\uacfc\n \\item Validation Plan\uacfc Validation Report\n \\item Safety Manual\n \\item \uc601\ud5a5\ubd84\uc11d\uacfc \uc7ac\uc2dc\ud5d8 \uae30\ub85d\n\\end{itemize}\n\n``Not Applicable''\uc740 \uc815\ub2f9\ud55c \uadfc\uac70\uac00 \uc788\uc744 \ub54c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \uc0c1\ub300\uc801\uc73c\ub85c \ub2e8\uc21c\ud55c \uc751\uc6a9 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc694\uc57d \ud15c\ud50c\ub9bf\uc73c\ub85c \ud3c9\uac00\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc0c8\ub85c\uc6b4 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc784\ubca0\ub514\ub4dc \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \ud568\uaed8 \uac1c\ubc1c\ud558\ub294 \uacbd\uc6b0 \ud45c\uc900\uc758 \uc0c1\uc138\ud45c\ub97c \uc9c1\uc811 \uc801\uc6a9\ud560 \ud544\uc694\uac00 \uc788\ub2e4.\n\n\\sourcepara{4.11 Conformance Demonstration Template}\n\n% =========================================================\n\\section{\ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\ub9ac}\n% =========================================================\n\n\\subsection{\uc815\uc758}\n\n\\begin{keybox}{\ud615\uc0c1\uad00\ub9ac\uc758 \uc815\ud655\ud55c \uc815\uc758}\n\ud615\uc0c1\uad00\ub9ac\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \uad00\ub828 \ubb38\uc11c\u00b7\ub370\uc774\ud130\u00b7\ub3c4\uad6c\ub97c \ud615\uc0c1\ud56d\ubaa9\uc73c\ub85c \uc2dd\ubcc4\ud558\uace0, \uc2b9\uc778\ub41c \ubc84\uc804 \uc870\ud569\uc744 \uae30\uc900\uc120\uc73c\ub85c \uc124\uc815\ud558\uba70, \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \ubcc0\uacbd\ud1b5\uc81c, \uc601\ud5a5\ud3c9\uac00, Release \ubc0f \ud3d0\uae30\ub97c \uad00\ub9ac\ud558\uc5ec \uc124\uacc4\ud55c \uc2dc\uc2a4\ud15c, \uc2dc\ud5d8\ud55c \uc2dc\uc2a4\ud15c \ubc0f \uc124\uce58\ub41c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc77c\uc131\uc744 \ubcf4\uc7a5\ud558\ub294 \ud65c\ub3d9\uc774\ub2e4.\n\\end{keybox}\n\n\\subsection{\ud615\uc0c1\ud56d\ubaa9\uc758 \ubc94\uc704}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.22\\textwidth} X}\n\\toprule\n\uad6c\ubd84 & \ud615\uc0c1\ud56d\ubaa9 \uc608\uc2dc \\\\\n\\midrule\n\uc694\uad6c\uc0ac\ud56d & Software Safety Requirements Specification, \uc778\ud130\ud398\uc774\uc2a4 \uc694\uad6c\uc0ac\ud56d \\\\\n\uc124\uacc4 & \uc544\ud0a4\ud14d\ucc98, Cause and Effect, State Diagram, \ubaa8\ub4c8 \uc124\uacc4\uc11c \\\\\n\uad6c\ud604 & PLC Project, \uc18c\uc2a4\ucf54\ub4dc, Function Block, Library, \uc2e4\ud589\ud30c\uc77c \\\\\n\uc124\uc815 & \ud30c\ub77c\ubbf8\ud130, Trip \uac12, \ud1b5\uc2e0\uc124\uc815, I\/O Mapping \\\\\n\ub3c4\uad6c\u00b7\ud658\uacbd & Compiler, PLC Engineering Tool, \uc6b4\uc601\uccb4\uc81c, Firmware \\\\\n\uc2dc\ud5d8 & \uc2dc\ud5d8\uc808\ucc28, \uc2dc\ud5d8\ub370\uc774\ud130, Test Harness, \uc2dc\ud5d8\uacb0\uacfc, \uacb0\ud568\ubaa9\ub85d \\\\\n\uc6b4\uc601\uc790\ub8cc & Safety Manual, Release Note, \ubcc0\uacbd\ub85c\uadf8, \ud3d0\uae30\uc0c1\ud0dc \\\\\n\\bottomrule\n\\end{tabularx}\n\n\\subsection{\ud615\uc0c1\uad00\ub9ac \uc808\ucc28}\n\n\\begin{enumerate}\n \\item \\term{\uc2dd\ubcc4}: \ud615\uc0c1\ud56d\ubaa9\ub9c8\ub2e4 \uace0\uc720 ID, \uba85\uce6d, \ubc84\uc804, \uc0c1\ud0dc \ubc0f \ucc45\uc784\uc790\ub97c \ubd80\uc5ec\ud55c\ub2e4.\n \\item \\term{\uae30\uc900\uc120}: \uac80\ud1a0\uc640 \uc2b9\uc778 \ud6c4 \uc694\uad6c\uc0ac\ud56d\u00b7\uc124\uacc4\u00b7\uc2dc\ud5d8 \ub610\ub294 Release \uae30\uc900\uc120\uc744 \uc124\uc815\ud55c\ub2e4.\n \\item \\term{\ucd94\uc801}: \uc694\uad6c\uc0ac\ud56d\uacfc \uc124\uacc4, \ucf54\ub4dc, \uc2dc\ud5d8\uacb0\uacfc\ub97c \uc591\ubc29\ud5a5\uc73c\ub85c \uc5f0\uacb0\ud55c\ub2e4.\n \\item \\term{\ubcc0\uacbd\ud1b5\uc81c}: \ubcc0\uacbd\uc0ac\uc720, \uc601\ud5a5, \uc2b9\uc778, \uad6c\ud604, \uc7ac\uc2dc\ud5d8 \ubc0f \uc0c8\ub85c\uc6b4 \ubc84\uc804\uc744 \uae30\ub85d\ud55c\ub2e4.\n \\item \\term{\uc0c1\ud0dc\uae30\ub85d}: \ud604\uc7ac \uc2b9\uc778\uc0c1\ud0dc, \uc2dc\ud5d8\uc0c1\ud0dc, Release \uc0c1\ud0dc \ubc0f \ud3d0\uae30\uc0c1\ud0dc\ub97c \uc720\uc9c0\ud55c\ub2e4.\n \\item \\term{\uac10\uc0ac}: \ubb38\uc11c, \uc800\uc7a5\uc18c, \ube4c\ub4dc\uacb0\uacfc \ubc0f \ud604\uc7a5 \uc124\uce58\ubcf8\uc774 \uc2b9\uc778\uae30\uc900\uc120\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.\n\\end{enumerate}\n\n\\subsection{\ubc84\uc804\uad00\ub9ac\uc640\uc758 \ucc28\uc774}\n\n\\begin{tabularx}{\\textwidth}{>{\\bfseries}p{0.20\\textwidth} X}\n\\toprule\n\uac1c\ub150 & \uc758\ubbf8 \\\\\n\\midrule\n\ubc84\uc804\uad00\ub9ac & \ud30c\uc77c\uc758 \uc218\uc815\uc774\ub825, \ucc28\uc774 \ubc0f \ubc84\uc804\uc744 \uc800\uc7a5\ud55c\ub2e4. \\\\\n\ubcc0\uacbd\uad00\ub9ac & \ubcc0\uacbd\uc758 \ud544\uc694\uc131, \uc601\ud5a5, \uc2b9\uc778 \ubc0f \uc7ac\uc2dc\ud5d8\uc744 \ud1b5\uc81c\ud55c\ub2e4. \\\\\nRelease \uad00\ub9ac & \uc2b9\uc778\ub41c \ud615\uc0c1\uc870\ud569\uc744 \uc124\uce58\u00b7\uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc84\uc804\uc73c\ub85c \uacf5\uc2dd \ubc1c\ud589\ud55c\ub2e4. \\\\\n\ud615\uc0c1\uad00\ub9ac & \uc704 \ud65c\ub3d9\uc744 \ud1b5\ud569\ud558\uc5ec \uc2dc\uc2a4\ud15c \uc804\uccb4 \uad6c\uc131\uacfc \uc99d\uac70\uc758 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud55c\ub2e4. \\\\\n\\bottomrule\n\\end{tabularx}\n\nGit\uacfc \uac19\uc740 \ub3c4\uad6c\ub294 \ud615\uc0c1\uad00\ub9ac\ub97c \uc9c0\uc6d0\ud558\uc9c0\ub9cc, Git\ub9cc\uc73c\ub85c \uc694\uad6c\uc0ac\ud56d \ucd94\uc801, \uc548\uc804\uc601\ud5a5\ubd84\uc11d, \ubcc0\uacbd\uc2b9\uc778, \ub3c4\uad6c\ubc84\uc804, \ud604\uc7a5 \uc124\uce58\ubcf8 \ubc0f Release \uc2b9\uc778\uc744 \uc790\ub3d9 \ubcf4\uc99d\ud558\uc9c0\ub294 \uc54a\ub294\ub2e4.\n\n% =========================================================\n\\section{\ucd5c\uc885 \uc694\uc57d}\n% =========================================================\n\n\\begin{enumerate}\n \\item Chapter 4\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \uccb4\uacc4\uc801 \uace0\uc7a5\uc744 \uad00\ub9ac\ud55c\ub2e4.\n \\item \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uace0\uc7a5\ub960\uc744 \uc9c1\uc811 \uacc4\uc0b0\ud558\ub294 \ub300\uc2e0 SIL\uc5d0 \ub9de\ub294 \uc0dd\uba85\uc8fc\uae30\uc640 \uac80\uc99d \uac15\ub3c4\ub97c \uc801\uc6a9\ud55c\ub2e4.\n \\item V-Model\uc740 \uc124\uacc4\ub2e8\uacc4\uc640 \uc2dc\ud5d8\ub2e8\uacc4\ub97c \ub300\uc751\uc2dc\ud0a8\ub2e4.\n \\item \uc548\uc804\uc694\uad6c\uc0ac\ud56d\uc740 \uba85\ud655\ud558\uace0 \uc2dc\ud5d8 \uac00\ub2a5\ud558\uba70 \uc591\ubc29\ud5a5 \ucd94\uc801\uc774 \uac00\ub2a5\ud574\uc57c \ud55c\ub2e4.\n \\item \uc544\ud0a4\ud14d\ucc98\ub294 \ubaa8\ub4c8\ud654, \uc9c4\ub2e8 \ubc0f \ube44\uac04\uc12d\uc131\uc744 \ud655\ubcf4\ud574\uc57c \ud55c\ub2e4.\n \\item \ucf54\ub529\uc740 \uc81c\ud55c\ub41c \uc5b8\uc5b4, \uad6c\uc870\uc801 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \ubc29\uc5b4\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \uc801\uc6a9\ud55c\ub2e4.\n \\item \ub3c4\uad6c\ub3c4 \uc0ac\uc6a9\uc2e4\uc801, \uc624\ub958\uad00\ub9ac \ub610\ub294 \uc778\uc99d\uc744 \ud1b5\ud574 \uc801\ud569\uc131\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4.\n \\item \ubaa8\ub4c8\uc2dc\ud5d8, \ud1b5\ud569\uc2dc\ud5d8 \ubc0f Validation\uc758 \uacb0\uacfc\uc5d0\ub294 \ubc84\uc804\uacfc \ubd88\uc77c\uce58 \ucc98\ub9ac\uae30\ub85d\uc774 \ud544\uc694\ud558\ub2e4.\n \\item \ubcc0\uacbd\uc740 \uc601\ud5a5\ubd84\uc11d\uacfc SIL\ubcc4 \uc7ac\uac80\uc99d \ubc94\uc704\ub97c \uc801\uc6a9\ud55c\ub2e4.\n \\item \ucd5c\uc885\uc801\uc73c\ub85c \ud45c\uc900 \uc694\uad6c\uc0ac\ud56d\uacfc \ud504\ub85c\uc81d\ud2b8 Evidence\ub97c \uc5f0\uacb0\ud558\uc5ec \uc801\ud569\uc131\uc744 \uc785\uc99d\ud55c\ub2e4.\n\\end{enumerate}\n\n\\begin{keybox}{\ud55c \ubb38\uc7a5 \uc815\ub9ac}\nChapter 4\ub294 \uc548\uc804\uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0 \uc624\ub958\uac00 \uc5c6\ub2e4\uace0 \uc120\uc5b8\ud558\ub294 \ubc29\ubc95\uc774 \uc544\ub2c8\ub77c, \uc694\uad6c\uc0ac\ud56d\ubd80\ud130 \ubcc0\uacbd\uae4c\uc9c0 \uccb4\uacc4\uc801\uc778 \uc0dd\uba85\uc8fc\uae30\ub97c \uc801\uc6a9\ud558\uc5ec \uc624\ub958\ub97c \uc608\ubc29\u00b7\ubc1c\uacac\u00b7\ud1b5\uc81c\ud558\uace0, \uadf8 \uc218\ud589\uc99d\uac70\ub85c \ubaa9\ud45c SIL \uc801\ud569\uc131\uc744 \uc785\uc99d\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud55c\ub2e4.\n\\end{keybox}\n\n% =========================================================\n\\section*{\ucc38\uace0\ubb38\ud5cc}\n\\addcontentsline{toc}{section}{\ucc38\uace0\ubb38\ud5cc}\n% =========================================================\n\nDavid J. Smith and Kenneth G. L. Simpson, \\eng{The Safety Critical Systems Handbook: A Straightforward Guide to Functional Safety, IEC 61508, IEC 61511 and Related Guidance}, 4th ed., Butterworth-Heinemann, 2016, Chapter 4, pp. 79--100.\n\n\\end{document}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>IEC 61508 Part 3 \u2014 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c IEC 61508 Part 3 \u00b7 Chapter 4 \uc548\uc804 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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