{"id":1156,"date":"2026-03-27T12:04:07","date_gmt":"2026-03-27T12:04:07","guid":{"rendered":"https:\/\/www.method-post.com\/vi\/beginners-checklist-draw-flawless-class-diagram\/"},"modified":"2026-03-27T12:04:07","modified_gmt":"2026-03-27T12:04:07","slug":"beginners-checklist-draw-flawless-class-diagram","status":"publish","type":"post","link":"https:\/\/www.method-post.com\/vi\/beginners-checklist-draw-flawless-class-diagram\/","title":{"rendered":"B\u1ea3ng ki\u1ec3m cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u: 12 b\u01b0\u1edbc thi\u1ebft y\u1ebfu \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 l\u1edbp ho\u00e0n h\u1ea3o m\u1ed7i l\u1ea7n"},"content":{"rendered":"<p>Vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m v\u1eefng ch\u1eafc b\u1eaft \u0111\u1ea7u b\u1eb1ng m\u1ed9t b\u1ea3n ph\u00e1c th\u1ea3o r\u00f5 r\u00e0ng. S\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng trong thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, cung c\u1ea5p c\u00e1i nh\u00ecn t\u0129nh v\u1ec1 c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng. N\u00f3 m\u00f4 t\u1ea3 c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh, thao t\u00e1c v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 k\u1ebft n\u1ed1i ch\u00fang l\u1ea1i v\u1edbi nhau. M\u1eb7c d\u00f9 kh\u00e1i ni\u1ec7m n\u00e0y c\u00f3 th\u1ec3 tr\u00f4ng \u0111\u00e1ng s\u1ee3 ban \u0111\u1ea7u, nh\u01b0ng m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac s\u1ebd l\u00e0m \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh \u0111\u00e1ng k\u1ec3. H\u01b0\u1edbng d\u1eabn n\u00e0y n\u00eau ra m\u1ed9t quy tr\u00ecnh logic \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n trong c\u00e1c n\u1ed7 l\u1ef1c m\u00f4 h\u00ecnh h\u00f3a c\u1ee7a b\u1ea1n.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii cute vector infographic illustrating a 12-step beginner's checklist for creating flawless UML class diagrams, featuring pastel-colored rounded icons for scope definition, class identification, attributes, methods, visibility modifiers, relationships, multiplicity, aggregation, composition, inheritance, dependencies, constraints, and final review, with reference cards for relationship types and visibility symbols, designed in soft pink, mint, lavender, and peach tones with simplified shapes and friendly educational layout\" decoding=\"async\" src=\"https:\/\/www.method-post.com\/wp-content\/uploads\/2026\/03\/12-step-class-diagram-checklist-kawaii-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>T\u1ea1i sao s\u01a1 \u0111\u1ed3 l\u1edbp l\u1ea1i quan tr\u1ecdng trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m \ud83d\udcd0<\/h2>\n<p>S\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t h\u1ee3p \u0111\u1ed3ng gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 c\u00e1c b\u00ean li\u00ean quan. N\u00f3 l\u00e0m r\u00f5 c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef v\u00e0 h\u00e0nh vi \u0111\u01b0\u1ee3c th\u1ef1c thi nh\u01b0 th\u1ebf n\u00e0o. Kh\u00f4ng c\u00f3 bi\u1ec3u di\u1ec5n tr\u1ef1c quan n\u00e0y, m\u00e3 ngu\u1ed3n c\u00f3 th\u1ec3 tr\u1edf n\u00ean r\u1eddi r\u1ea1c, d\u1eabn \u0111\u1ebfn nh\u1eefng c\u01a1n \u00e1c m\u1ed9ng trong b\u1ea3o tr\u00ec. B\u1eb1ng c\u00e1ch tu\u00e2n theo m\u1ed9t danh s\u00e1ch ki\u1ec3m tra c\u00f3 k\u1ef7 lu\u1eadt, b\u1ea1n gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3 v\u00e0 \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u kinh doanh. T\u00e0i li\u1ec7u n\u00e0y t\u1eadp trung v\u00e0o ph\u01b0\u01a1ng ph\u00e1p ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00f4ng c\u1ee5 c\u1ee5 th\u1ec3, cho ph\u00e9p b\u1ea1n \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc n\u00e0y b\u1ea5t k\u1ec3 m\u00f4i tr\u01b0\u1eddng \u01b0a th\u00edch c\u1ee7a b\u1ea1n l\u00e0 g\u00ec.<\/p>\n<h2>B\u1ea3ng ki\u1ec3m 12 b\u01b0\u1edbc cho s\u01a1 \u0111\u1ed3 l\u1edbp \u2705<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch chi ti\u1ebft v\u1ec1 c\u00e1c b\u01b0\u1edbc thi\u1ebft y\u1ebfu c\u1ea7n th\u1ef1c hi\u1ec7n \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4 h\u00ecnh \u0111\u00e1ng tin c\u1eady. M\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u d\u1ef1a tr\u00ean b\u01b0\u1edbc tr\u01b0\u1edbc \u0111\u00f3, \u0111\u1ea3m b\u1ea3o n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n.<\/p>\n<h3>1. X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi v\u00e0 m\u1ee5c ti\u00eau \ud83c\udfaf<\/h3>\n<p>Tr\u01b0\u1edbc khi v\u1ebd b\u1ea5t k\u1ef3 h\u1ed9p n\u00e0o, h\u00e3y hi\u1ec3u r\u00f5 ranh gi\u1edbi c\u1ee7a h\u1ec7 th\u1ed1ng. Ch\u1ee9c n\u0103ng n\u00e0o m\u00e0 s\u01a1 \u0111\u1ed3 n\u00e0y bao ph\u1ee7? N\u00f3 d\u00e0nh cho to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng hay m\u1ed9t module c\u1ee5 th\u1ec3? X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng tr\u00e0n ph\u1ea1m vi, khi c\u00e1c l\u1edbp kh\u00f4ng li\u00ean quan b\u1ecb th\u00eam v\u00e0o, l\u00e0m r\u1ed1i lo\u1ea1n m\u00f4 h\u00ecnh. Ghi l\u1ea1i m\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 n\u00e0y. B\u1ea1n \u0111ang t\u00e0i li\u1ec7u h\u00f3a m\u00e3 ngu\u1ed3n c\u0169, hay \u0111ang thi\u1ebft k\u1ebf m\u1ed9t t\u00ednh n\u0103ng m\u1edbi? B\u1ed1i c\u1ea3nh n\u00e0y s\u1ebd d\u1eabn d\u1eaft m\u1ecdi quy\u1ebft \u0111\u1ecbnh ti\u1ebfp theo.<\/p>\n<h3>2. X\u00e1c \u0111\u1ecbnh c\u00e1c l\u1edbp ch\u00ednh t\u1eeb y\u00eau c\u1ea7u \ud83d\udcdd<\/h3>\n<p>C\u00e1c l\u1edbp th\u01b0\u1eddng \u0111\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c danh t\u1eeb xu\u1ea5t hi\u1ec7n trong y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng ho\u1eb7c c\u00e1c c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng. Xem x\u00e9t l\u1ea1i c\u00e1c \u0111\u1eb7c t\u1ea3 ch\u1ee9c n\u0103ng v\u00e0 l\u00e0m n\u1ed5i b\u1eadt c\u00e1c th\u1ef1c th\u1ec3 \u0111\u1ea1i di\u1ec7n cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c kh\u00e1i ni\u1ec7m trong th\u1ebf gi\u1edbi th\u1ef1c. V\u00ed d\u1ee5 bao g\u1ed3m <em>Kh\u00e1ch h\u00e0ng<\/em>, <em>\u0110\u01a1n h\u00e0ng<\/em>, ho\u1eb7c <em>S\u1ea3n ph\u1ea9m<\/em>. \u0110\u1eebng bao g\u1ed3m c\u00e1c l\u1edbp ti\u1ec7n \u00edch hay \u0111\u1ed1i t\u01b0\u1ee3ng t\u1ea1m th\u1eddi ngay l\u00fac n\u00e0y. T\u1eadp trung v\u00e0o c\u00e1c th\u1ef1c th\u1ec3 c\u1ed1t l\u00f5i trong l\u0129nh v\u1ef1c kinh doanh, nh\u1eefng th\u1ef1c th\u1ec3 c\u00f3 tr\u1ea1ng th\u00e1i v\u00e0 h\u00e0nh vi \u0111\u00e1ng k\u1ec3. B\u01b0\u1edbc n\u00e0y \u0111\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 v\u1eabn t\u1eadp trung v\u00e0o gi\u00e1 tr\u1ecb kinh doanh.<\/p>\n<h3>3. X\u00e1c \u0111\u1ecbnh thu\u1ed9c t\u00ednh cho m\u1ed7i l\u1edbp \ud83d\udce6<\/h3>\n<p>Thu\u1ed9c t\u00ednh \u0111\u1ea1i di\u1ec7n cho tr\u1ea1ng th\u00e1i ho\u1eb7c d\u1eef li\u1ec7u m\u00e0 m\u1ed9t l\u1edbp gi\u1eef. Li\u1ec7t k\u00ea c\u00e1c bi\u1ebfn \u0111\u1ecbnh ngh\u0129a tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u1ed1i v\u1edbi l\u1edbp <em>Kh\u00e1ch h\u00e0ng<\/em> th\u00ec thu\u1ed9c t\u00ednh c\u00f3 th\u1ec3 bao g\u1ed3m <em>t\u00ean<\/em>, <em>email<\/em>, v\u00e0 <em>\u0111\u1ecba ch\u1ec9<\/em>. Tr\u00e1nh l\u00e0m qu\u00e1 t\u1ea3i m\u1ed9t l\u1edbp v\u1edbi qu\u00e1 nhi\u1ec1u thu\u1ed9c t\u00ednh, v\u00ec \u0111i\u1ec1u n\u00e0y cho th\u1ea5y vi ph\u1ea1m nguy\u00ean t\u1eafc t\u00e1ch bi\u1ec7t tr\u00e1ch nhi\u1ec7m. Nh\u00f3m d\u1eef li\u1ec7u li\u00ean quan m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd. \u0110\u1ea3m b\u1ea3o m\u1ecdi thu\u1ed9c t\u00ednh \u0111\u1ec1u c\u00f3 m\u1ee5c \u0111\u00edch r\u00f5 r\u00e0ng g\u1eafn li\u1ec1n v\u1edbi c\u00e1c quy t\u1eafc kinh doanh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n y\u00eau c\u1ea7u.<\/p>\n<h3>4. X\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c v\u00e0 thao t\u00e1c \u2699\ufe0f<\/h3>\n<p>C\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ecbnh ngh\u0129a h\u00e0nh vi c\u1ee7a l\u1edbp. \u0110\u00e2y l\u00e0 nh\u1eefng h\u00e0nh \u0111\u1ed9ng m\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n. \u0110\u1ed1i v\u1edbi l\u1edbp <em>S\u1ea3n ph\u1ea9m<\/em> th\u00ec c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u00f3 th\u1ec3 bao g\u1ed3m <em>t\u00ednhChi\u1ebftKh\u1ea5u()<\/em> ho\u1eb7c <em>c\u1eadpNh\u1eadtGi\u00e1()<\/em>. Khi li\u1ec7t k\u00ea c\u00e1c thao t\u00e1c, h\u00e3y t\u1eadp trung v\u00e0o c\u00e1c giao di\u1ec7n c\u00f4ng khai m\u00e0 c\u00e1c l\u1edbp kh\u00e1c s\u1ebd t\u01b0\u01a1ng t\u00e1c v\u1edbi. C\u00e1c h\u00e0m tr\u1ee3 gi\u00fap n\u1ed9i b\u1ed9 kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i hi\u1ec3n th\u1ecb tr\u00ean s\u01a1 \u0111\u1ed3 tr\u1eeb khi ch\u00fang quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng. Gi\u1eef t\u00ean ph\u01b0\u01a1ng th\u1ee9c m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng v\u00e0 s\u1eed d\u1ee5ng quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean chu\u1ea9n \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh d\u1ec5 \u0111\u1ecdc.<\/p>\n<h3>5. X\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ed9 ph\u1eadn truy c\u1eadp \ud83d\udd12<\/h3>\n<p>T\u00ednh kh\u1ea3 d\u1ee5ng ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp v\u00e0o thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c. \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a \u0111\u00f3ng g\u00f3i. C\u00f3 b\u1ed1n b\u1ed9 ph\u1eadn truy c\u1eadp chu\u1ea9n:<\/p>\n<ul>\n<li><strong>C\u00f4ng khai (+):<\/strong> C\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb b\u1ea5t k\u1ef3 l\u1edbp n\u00e0o.<\/li>\n<li><strong>Ri\u00eang t\u01b0 (-):<\/strong>Ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp b\u00ean trong l\u1edbp.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 (#):<\/strong>C\u00f3 th\u1ec3 truy c\u1eadp trong l\u1edbp v\u00e0 c\u00e1c l\u1edbp con c\u1ee7a n\u00f3.<\/li>\n<li><strong>G\u00f3i (~):<\/strong>C\u00f3 th\u1ec3 truy c\u1eadp trong c\u00f9ng m\u1ed9t g\u00f3i ho\u1eb7c kh\u00f4ng gian t\u00ean.<\/li>\n<\/ul>\n<p>G\u1eafn m\u1ed7i thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c v\u1edbi k\u00fd hi\u1ec7u ph\u00f9 h\u1ee3p. Vi\u1ec7c m\u1eb7c \u0111\u1ecbnh l\u00e0 ri\u00eang t\u01b0 cho c\u00e1c th\u00e0nh vi\u00ean d\u1eef li\u1ec7u v\u00e0 c\u00f4ng khai cho c\u00e1c thao t\u00e1c l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh t\u1ed1t ph\u1ed5 bi\u1ebfn. S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 ng\u0103n c\u1ea3n m\u00e3 b\u00ean ngo\u00e0i thao t\u00e1c tr\u1ef1c ti\u1ebfp v\u00e0o tr\u1ea1ng th\u00e1i n\u1ed9i b\u1ed9.<\/p>\n<h3>6. X\u00e1c \u0111\u1ecbnh c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c l\u1edbp \ud83d\udd17<\/h3>\n<p>C\u00e1c l\u1edbp hi\u1ebfm khi t\u1ed3n t\u1ea1i ri\u00eang l\u1ebb. Ch\u00fang t\u01b0\u01a1ng t\u00e1c th\u00f4ng qua c\u00e1c m\u1ed1i quan h\u1ec7. X\u00e1c \u0111\u1ecbnh c\u00e1ch m\u1ed9t l\u1edbp s\u1eed d\u1ee5ng ho\u1eb7c k\u1ebft n\u1ed1i v\u1edbi l\u1edbp kh\u00e1c. M\u1ed1i quan h\u1ec7 c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 li\u00ean k\u1ebft. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho m\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac n\u01a1i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. V\u00ed d\u1ee5, m\u1ed9t <em>Kh\u00e1chH\u00e0ng<\/em> \u0111\u1eb7t m\u1ed9t <em>\u0110\u01a1nH\u00e0ng<\/em>. \u0110i\u1ec1u n\u00e0y ng\u1ee5 \u00fd m\u1ed9t li\u00ean k\u1ebft gi\u1eefa hai th\u1ef1c th\u1ec3. V\u1ebd c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa c\u00e1c l\u1edbp li\u00ean quan \u0111\u1ec3 tr\u1ef1c quan h\u00f3a r\u00f5 r\u00e0ng c\u00e1c k\u1ebft n\u1ed1i n\u00e0y.<\/p>\n<h3>7. X\u00e1c \u0111\u1ecbnh t\u00ednh \u0111a d\u1ea1ng v\u00e0 c\u1ea5p \u0111\u1ed9 s\u1ed1 l\u01b0\u1ee3ng \ud83d\udd22<\/h3>\n<p>T\u00ednh \u0111a d\u1ea1ng x\u00e1c \u0111\u1ecbnh c\u00f3 bao nhi\u00eau th\u1ec3 hi\u1ec7n c\u1ee7a m\u1ed9t l\u1edbp li\u00ean quan \u0111\u1ebfn m\u1ed9t l\u1edbp kh\u00e1c. N\u00f3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cBao nhi\u00eau?\u201d. S\u1eed d\u1ee5ng c\u00e1c k\u00fd hi\u1ec7u nh\u01b0:<\/p>\n<ul>\n<li><strong>1:<\/strong>Ch\u00ednh x\u00e1c m\u1ed9t th\u1ec3 hi\u1ec7n.<\/li>\n<li><strong>0..1:<\/strong>Kh\u00f4ng ho\u1eb7c m\u1ed9t th\u1ec3 hi\u1ec7n.<\/li>\n<li><strong>1..*:<\/strong>M\u1ed9t ho\u1eb7c nhi\u1ec1u th\u1ec3 hi\u1ec7n.<\/li>\n<li><strong>0..*:<\/strong> Kh\u00f4ng c\u00f3 ho\u1eb7c nhi\u1ec1u l\u1ea7n xu\u1ea5t hi\u1ec7n.<\/li>\n<\/ul>\n<p>\u0110\u1eb7t c\u00e1c k\u00fd hi\u1ec7u n\u00e0y \u1edf hai \u0111\u1ea7u \u0111\u01b0\u1eddng n\u1ed1i li\u00ean k\u1ebft. V\u00ed d\u1ee5, m\u1ed9t <em>Kh\u00e1ch h\u00e0ng<\/em>c\u00f3 th\u1ec3 \u0111\u1eb7t nhi\u1ec1u <em>\u0110\u01a1n h\u00e0ng<\/em>, \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 1..*. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t <em>\u0110\u01a1n h\u00e0ng<\/em>thu\u1ed9c v\u1ec1 \u0111\u00fang m\u1ed9t <em>Kh\u00e1ch h\u00e0ng<\/em>, \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 1. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c t\u00ednh \u0111a d\u1ea1ng gi\u00fap ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i logic trong s\u01a1 \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 logic \u1ee9ng d\u1ee5ng sau n\u00e0y.<\/p>\n<h3>8. M\u00f4 h\u00ecnh h\u00f3a t\u00edch h\u1ee3p v\u00e0 k\u1ebft h\u1ee3p \ud83e\udde9<\/h3>\n<p>\u0110\u00e2y l\u00e0 nh\u1eefng d\u1ea1ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a li\u00ean k\u1ebft m\u00f4 t\u1ea3 quy\u1ec1n s\u1edf h\u1eefu.<strong>T\u00edch h\u1ee3p<\/strong>bi\u1ec3u th\u1ecb m\u1ed1i quan h\u1ec7 &#8216;c\u00f3-m\u1ed9t&#8217; trong \u0111\u00f3 b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u1edbi to\u00e0n th\u1ec3. H\u00e3y ngh\u0129 \u0111\u1ebfn m\u1ed9t <em>Ph\u00f2ng ban<\/em>v\u00e0<em>Nh\u00e2n vi\u00ean<\/em>. N\u1ebfu ph\u00f2ng ban tan r\u00e3, nh\u00e2n vi\u00ean v\u1eabn t\u1ed3n t\u1ea1i. S\u1eed d\u1ee5ng h\u00ecnh thoi tr\u1ed1ng \u0111\u1ec3 bi\u1ec3u th\u1ecb \u0111i\u1ec1u n\u00e0y.<strong>K\u1ebft h\u1ee3p<\/strong>ng\u1ee5 \u00fd quy\u1ec1n s\u1edf h\u1eefu m\u1ea1nh h\u01a1n, n\u01a1i b\u1ed9 ph\u1eadn kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 to\u00e0n th\u1ec3. M\u1ed9t <em>Ng\u00f4i nh\u00e0<\/em>v\u00e0 c\u00e1c <em>Ph\u00f2ng<\/em>ph\u00f9 h\u1ee3p v\u1edbi m\u00f4 h\u00ecnh n\u00e0y. N\u1ebfu ng\u00f4i nh\u00e0 b\u1ecb ph\u00e1 h\u1ee7y, c\u00e1c ph\u00f2ng c\u0169ng bi\u1ebfn m\u1ea5t. S\u1eed d\u1ee5ng h\u00ecnh thoi \u0111\u1ea7y \u0111\u1ec3 bi\u1ec3u th\u1ecb k\u1ebft h\u1ee3p. Vi\u1ec7c ph\u00e2n bi\u1ec7t ch\u00ednh x\u00e1c c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u1ea3n l\u00fd v\u00f2ng \u0111\u1eddi.<\/p>\n<h3>9. Thi\u1ebft l\u1eadp c\u00e1c c\u1ea5p k\u1ebf th\u1eeba \ud83c\udf33<\/h3>\n<p>K\u1ebf th\u1eeba cho ph\u00e9p c\u00e1c l\u1edbp chia s\u1ebb c\u00e1c thu\u1ed9c t\u00ednh v\u00e0 h\u00e0nh vi chung. \u0110\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 &#8216;l\u00e0-m\u1ed9t&#8217;. N\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t l\u1edbp <em>Ph\u01b0\u01a1ng ti\u1ec7n<\/em>l\u1edbp, b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 c\u00e1c l\u1edbp con nh\u01b0 <em>Xe h\u01a1i<\/em>v\u00e0<em>Xe t\u1ea3i<\/em>. V\u1ebd m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi h\u00ecnh tam gi\u00e1c r\u1ed7ng h\u01b0\u1edbng v\u1ec1 si\u00eau l\u1edbp. \u0110i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng m\u00e3 ngu\u1ed3n v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ef1 tr\u00f9ng l\u1eb7p. \u0110\u1ea3m b\u1ea3o c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p v\u1eabn h\u1ee3p l\u00fd. Tr\u00e1nh c\u00e1c c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p qu\u00e1 s\u00e2u khi\u1ebfn h\u1ec7 th\u1ed1ng kh\u00f3 thao t\u00e1c. Gi\u1eef \u0111\u1ed9 s\u00e2u \u1edf m\u1ee9c h\u1ee3p l\u00fd, th\u01b0\u1eddng t\u1eeb ba \u0111\u1ebfn b\u1ed1n l\u1edbp.<\/p>\n<h3>10. M\u00f4 h\u00ecnh ph\u1ee5 thu\u1ed9c \ud83d\udd04<\/h3>\n<p>C\u00e1c ph\u1ee5 thu\u1ed9c x\u1ea3y ra khi m\u1ed9t thay \u0111\u1ed5i trong m\u1ed9t l\u1edbp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp kh\u00e1c, nh\u01b0ng ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng l\u00e0 m\u1ed1i quan h\u1ec7 &#8220;s\u1eed d\u1ee5ng-m\u1ed9t&#8221;. M\u1ed9t <em>ReportGenerator<\/em> c\u00f3 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t <em>DataRepository<\/em> \u0111\u1ec3 l\u1ea5y th\u00f4ng tin. S\u1eed d\u1ee5ng \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t v\u1edbi m\u0169i t\u00ean m\u1edf \u0111\u1ec3 bi\u1ec3u di\u1ec5n \u0111i\u1ec1u n\u00e0y. C\u00e1c ph\u1ee5 thu\u1ed9c cho th\u1ea5y s\u1ef1 li\u00ean k\u1ebft l\u1ecfng l\u1ebbo. M\u1eadt \u0111\u1ed9 ph\u1ee5 thu\u1ed9c cao c\u00f3 th\u1ec3 khi\u1ebfn h\u1ec7 th\u1ed1ng tr\u1edf n\u00ean d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng. T\u1ed1i thi\u1ec3u h\u00f3a c\u00e1c li\u00ean k\u1ebft n\u00e0y \u1edf m\u1ee9c c\u00f3 th\u1ec3 \u0111\u1ec3 duy tr\u00ec t\u00ednh module.<\/p>\n<h3>11. Th\u00eam r\u00e0ng bu\u1ed9c v\u00e0 quy t\u1eafc kinh doanh \ud83d\udcdc<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i m\u1ecdi quy t\u1eafc n\u00e0o c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c thi ch\u1ec9 b\u1eb1ng m\u00e3 ngu\u1ed3n. M\u1ed9t s\u1ed1 y\u00eau c\u1ea7u t\u00e0i li\u1ec7u h\u00f3a. S\u1eed d\u1ee5ng ghi ch\u00fa ho\u1eb7c r\u00e0ng bu\u1ed9c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh logic kinh doanh. V\u00ed d\u1ee5, m\u1ed9t <em>Order<\/em> kh\u00f4ng th\u1ec3 b\u1ecb h\u1ee7y n\u1ebfu <em>Status<\/em> l\u00e0 &#8220;\u0110\u00e3 giao h\u00e0ng&#8221;. S\u1eed d\u1ee5ng d\u1ea5u ngo\u1eb7c nh\u1ecdn {} ho\u1eb7c k\u00fd hi\u1ec7u c\u1ee5 th\u1ec3 cho r\u00e0ng bu\u1ed9c. \u0110i\u1ec1u n\u00e0y gi\u00fap l\u1ea5p \u0111\u1ea7y kho\u1ea3ng c\u00e1ch gi\u1eefa thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt v\u00e0 y\u00eau c\u1ea7u kinh doanh. N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng logic \u0111\u01b0\u1ee3c duy tr\u00ec ngay c\u1ea3 khi chi ti\u1ebft tri\u1ec3n khai thay \u0111\u1ed5i.<\/p>\n<h3>12. Xem x\u00e9t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 r\u00f5 r\u00e0ng \ud83d\udd0d<\/h3>\n<p>B\u01b0\u1edbc cu\u1ed1i c\u00f9ng l\u00e0 ki\u1ec3m tra to\u00e0n di\u1ec7n. Ki\u1ec3m tra xem t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp c\u00f3 tu\u00e2n theo quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean gi\u1ed1ng nhau hay kh\u00f4ng. \u0110\u1ea3m b\u1ea3o c\u00e1c m\u1ed1i quan h\u1ec7 l\u00e0 hai chi\u1ec1u khi ph\u00f9 h\u1ee3p, ho\u1eb7c \u0111\u01b0\u1ee3c ghi r\u00f5 l\u00e0 m\u1ed9t chi\u1ec1u. X\u00e1c minh r\u1eb1ng c\u00e1c m\u00f4 t\u1ea3 quy\u1ec1n truy c\u1eadp nh\u1ea5t qu\u00e1n tr\u00ean to\u00e0n s\u01a1 \u0111\u1ed3. Ki\u1ec3m tra c\u00e1c l\u1edbp b\u1ecb t\u00e1ch r\u1eddi kh\u00f4ng c\u00f3 m\u1ed1i quan h\u1ec7 n\u00e0o. M\u1ed9t s\u01a1 \u0111\u1ed3 s\u1ea1ch s\u1ebd s\u1ebd d\u1ec5 b\u1ea3o tr\u00ec h\u01a1n. N\u1ebfu ng\u01b0\u1eddi \u0111\u1ecdc kh\u00f4ng th\u1ec3 hi\u1ec3u m\u00f4 h\u00ecnh m\u00e0 kh\u00f4ng c\u1ea7n ch\u00fa th\u00edch, h\u00e3y tinh ch\u1ec9nh nh\u00e3n. T\u00ednh nh\u1ea5t qu\u00e1n l\u00e0 ch\u00eca kh\u00f3a cho kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n<h2>C\u00e1c lo\u1ea1i m\u1ed1i quan h\u1ec7 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch \ud83e\udd1d<\/h2>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c chi ti\u1ebft tinh t\u1ebf c\u1ee7a c\u00e1c m\u1ed1i quan h\u1ec7 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ea1o ra s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft c\u00e1c k\u00fd hi\u1ec7u chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i m\u1ed1i quan h\u1ec7<\/th>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<th>V\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Li\u00ean k\u1ebft<\/td>\n<td>\u0110\u01b0\u1eddng li\u1ec1n<\/td>\n<td>M\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/td>\n<td>Gi\u00e1o vi\u00ean d\u1ea1y h\u1ecdc sinh<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed5 h\u1ee3p<\/td>\n<td>H\u00ecnh thoi r\u1ed7ng<\/td>\n<td>Ph\u1ea7n c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u1edbi to\u00e0n b\u1ed9.<\/td>\n<td>Th\u01b0 vi\u1ec7n c\u00f3 S\u00e1ch<\/td>\n<\/tr>\n<tr>\n<td>Th\u00e0nh ph\u1ea7n<\/td>\n<td>H\u00ecnh thoi \u0111\u1ea7y<\/td>\n<td>Ph\u1ea7n kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 to\u00e0n b\u1ed9.<\/td>\n<td>C\u00f4ng ty s\u1edf h\u1eefu c\u00e1c ph\u00f2ng ban<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed5ng qu\u00e1t h\u00f3a<\/td>\n<td>\u0110\u01b0\u1eddng li\u1ec1n + Tam gi\u00e1c r\u1ed7ng<\/td>\n<td>M\u1ed1i quan h\u1ec7 k\u1ebf th\u1eeba.<\/td>\n<td>\u0110\u1ed9ng v\u1eadt l\u00e0 \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ee5 thu\u1ed9c<\/td>\n<td>\u0110\u01b0\u1eddng g\u1ea1ch n\u1ed1i + M\u0169i t\u00ean h\u1edf<\/td>\n<td>M\u1ed9t l\u1edbp s\u1eed d\u1ee5ng l\u1edbp kh\u00e1c t\u1ea1m th\u1eddi.<\/td>\n<td>L\u1edbp s\u1eed d\u1ee5ng l\u1edbp c\u00f4ng c\u1ee5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Tham chi\u1ebfu c\u00e1c b\u1ed9 l\u1ecdc \u0111\u1ed9 hi\u1ec3n th\u1ecb \ud83d\udccb<\/h2>\n<p>T\u00ednh nh\u1ea5t qu\u00e1n trong \u0111\u1ed9 hi\u1ec3n th\u1ecb th\u01b0\u1eddng b\u1ecb b\u1ecf qua nh\u01b0ng l\u1ea1i r\u1ea5t quan tr\u1ecdng cho t\u00ednh \u0111\u00f3ng g\u00f3i. Tham kh\u1ea3o h\u01b0\u1edbng d\u1eabn nhanh n\u00e0y khi v\u1ebd c\u00e1c h\u1ed9p c\u1ee7a b\u1ea1n.<\/p>\n<table>\n<thead>\n<tr>\n<th>B\u1ed9 l\u1ecdc<\/th>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>M\u1ee9c \u0111\u1ed9 truy c\u1eadp<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u00f4ng khai<\/td>\n<td>+<\/td>\n<td>C\u00f3 th\u1ec3 truy c\u1eadp b\u1edfi t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp<\/td>\n<\/tr>\n<tr>\n<td>Ri\u00eang t\u01b0<\/td>\n<td>\u2013<\/td>\n<td>Ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp b\u00ean trong l\u1edbp<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3o v\u1ec7<\/td>\n<td>#<\/td>\n<td>C\u00f3 th\u1ec3 truy c\u1eadp trong l\u1edbp v\u00e0 c\u00e1c l\u1edbp con<\/td>\n<\/tr>\n<tr>\n<td>G\u00f3i<\/td>\n<td>~<\/td>\n<td>C\u00f3 th\u1ec3 truy c\u1eadp trong c\u00f9ng m\u1ed9t g\u00f3i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Ho\u00e0n thi\u1ec7n m\u00f4 h\u00ecnh c\u1ee7a b\u1ea1n \u0111\u1ec3 tri\u1ec3n khai \ud83d\ude80<\/h2>\n<p>Khi danh s\u00e1ch ki\u1ec3m tra ho\u00e0n t\u1ea5t, s\u01a1 \u0111\u1ed3 \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 xem x\u00e9t. Tr\u00ecnh b\u00e0y m\u00f4 h\u00ecnh cho c\u00e1c b\u00ean li\u00ean quan \u0111\u1ec3 x\u00e1c minh r\u1eb1ng n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi k\u1ef3 v\u1ecdng c\u1ee7a h\u1ecd. \u0110\u1eb7t c\u00e2u h\u1ecfi v\u1ec1 c\u00e1c tr\u01b0\u1eddng h\u1ee3p bi\u00ean m\u00e0 c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec3n th\u1ecb r\u00f5 trong g\u00f3c nh\u00ecn t\u0129nh. \u0110\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. N\u1ebfu m\u1ed9t t\u00ednh n\u0103ng m\u1edbi y\u00eau c\u1ea7u thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi c\u1ea5u tr\u00fac l\u1edbp, h\u00e3y xem x\u00e9t l\u1ea1i thi\u1ebft k\u1ebf s\u1edbm thay v\u00ec s\u1eeda \u0111\u1ed5i l\u1ea1i sau n\u00e0y. M\u1ed9t s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a t\u1ed1t s\u1ebd ph\u1ee5c v\u1ee5 nh\u01b0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n t\u01b0\u01a1ng lai, gi\u1ea3m th\u1eddi gian l\u00e0m quen v\u00e0 h\u1ea1n ch\u1ebf sai s\u00f3t trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai m\u00e3 ngu\u1ed3n.<\/p>\n<p>B\u1eb1ng c\u00e1ch tu\u00e2n theo 12 b\u01b0\u1edbc n\u00e0y, b\u1ea1n s\u1ebd t\u1ea1o ra m\u1ed9t bi\u1ec3u di\u1ec5n r\u00f5 r\u00e0ng, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 ch\u00ednh x\u00e1c v\u1ec1 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh. C\u00f4ng s\u1ee9c b\u1ecf ra trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch l\u1edbn trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 b\u1ea3o tr\u00ec. T\u1eadp trung v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng, nh\u1ea5t qu\u00e1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u kinh doanh \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 th\u1ef1c s\u1ef1 \u0111\u00e1p \u1ee9ng m\u1ee5c \u0111\u00edch c\u1ee7a ch\u00fang.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m v\u1eefng ch\u1eafc b\u1eaft \u0111\u1ea7u b\u1eb1ng m\u1ed9t b\u1ea3n ph\u00e1c th\u1ea3o r\u00f5 r\u00e0ng. S\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng trong thi\u1ebft k\u1ebf&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1157,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Danh s\u00e1ch ki\u1ec3m tra cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u: 12 b\u01b0\u1edbc \u0111\u1ec3 v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ho\u00e0n h\u1ea3o \ud83d\udcca","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ho\u00e0n h\u1ea3o v\u1edbi danh s\u00e1ch ki\u1ec3m tra 12 b\u01b0\u1edbc n\u00e0y. H\u01b0\u1edbng d\u1eabn UML thi\u1ebft y\u1ebfu cho thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[13],"tags":[43,45],"class_list":["post-1156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-class-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Danh s\u00e1ch ki\u1ec3m tra cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u: 12 b\u01b0\u1edbc \u0111\u1ec3 v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ho\u00e0n h\u1ea3o \ud83d\udcca<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ho\u00e0n h\u1ea3o v\u1edbi danh s\u00e1ch ki\u1ec3m tra 12 b\u01b0\u1edbc n\u00e0y. 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