{"id":408,"date":"2026-04-03T12:10:44","date_gmt":"2026-04-03T12:10:44","guid":{"rendered":"https:\/\/www.go-notes.com\/vn\/best-practices-clear-maintainable-uml-class-diagrams\/"},"modified":"2026-04-01T14:29:42","modified_gmt":"2026-04-01T14:29:42","slug":"best-practices-clear-maintainable-uml-class-diagrams","status":"publish","type":"post","link":"https:\/\/www.go-notes.com\/vn\/best-practices-clear-maintainable-uml-class-diagrams\/","title":{"rendered":"C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o bi\u1ec3u \u0111\u1ed3 l\u1edbp UML r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec"},"content":{"rendered":"

Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o giao ti\u1ebfp tr\u1ef1c quan. Trong s\u1ed1 c\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c nhau c\u00f3 s\u1eb5n, bi\u1ec3u \u0111\u1ed3 l\u1edbp Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a Th\u1ed1ng nh\u1ea5t (UML) n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t t\u00e0i li\u1ec7u quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, m\u1ed9t bi\u1ec3u \u0111\u1ed3 qu\u00e1 ph\u1ee9c t\u1ea1p ho\u1eb7c \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac k\u00e9m th\u01b0\u1eddng tr\u1edf th\u00e0nh g\u00e1nh n\u1eb7ng thay v\u00ec l\u1ee3i \u00edch. N\u00f3 c\u00f3 th\u1ec3 l\u00e0m m\u1edd logic, g\u00e2y nh\u1ea7m l\u1eabn cho c\u00e1c b\u00ean li\u00ean quan v\u00e0 d\u1eabn \u0111\u1ebfn c\u00e1c l\u1ed7i th\u1ef1c hi\u1ec7n. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c bi\u1ec3u \u0111\u1ed3 n\u00e0y ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch c\u1ee7a ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, c\u00e1c h\u01b0\u1edbng d\u1eabn c\u1ee5 th\u1ec3 ph\u1ea3i \u0111\u01b0\u1ee3c tu\u00e2n theo. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c thi\u1ebft y\u1ebfu \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c bi\u1ec3u \u0111\u1ed3 v\u1eeba r\u00f5 r\u00e0ng \u0111\u1ec3 \u0111\u1ecdc v\u1eeba d\u1ec5 b\u1ea3o tr\u00ec theo th\u1eddi gian.<\/p>\n

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\"Infographic<\/figure>\n<\/div>\n

\ud83c\udfd7\ufe0f N\u1ec1n t\u1ea3ng: Ph\u1ea1m vi v\u00e0 \u0110\u1ed9 chi ti\u1ebft<\/h2>\n

B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong vi\u1ec7c t\u1ea1o m\u1ed9t bi\u1ec3u \u0111\u1ed3 h\u1eefu \u00edch l\u00e0 x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi. M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 c\u1ed1 g\u1eafng m\u00f4 h\u00ecnh h\u00f3a to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng trong m\u1ed9t ch\u1ebf \u0111\u1ed9 xem duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u1ed9t m\u1edb h\u1ed7n \u0111\u1ed9n n\u01a1i c\u00e1c m\u1ed1i quan h\u1ec7 kh\u00f3 theo d\u00f5i. Thay v\u00e0o \u0111\u00f3, h\u00e3y chia h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c ranh gi\u1edbi logic. H\u00e3y xem x\u00e9t k\u00edch th\u01b0\u1edbc c\u1ee7a danh s\u00e1ch l\u1edbp; n\u1ebfu m\u1ed9t bi\u1ec3u \u0111\u1ed3 v\u01b0\u1ee3t qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng l\u1edbp c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem tho\u1ea3i m\u00e1i tr\u00ean m\u1ed9t m\u00e0n h\u00ecnh duy nh\u1ea5t m\u00e0 kh\u00f4ng c\u1ea7n cu\u1ed9n, th\u00ec n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng qu\u00e1 d\u00e0y \u0111\u1eb7c.<\/p>\n

    \n
  • M\u1ee9c \u0111\u1ed9 ph\u00e2n h\u1ec7:<\/strong>T\u1eadp trung v\u00e0o s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c m\u00f4-\u0111un ch\u00ednh thay v\u00ec c\u00e1c l\u1edbp ri\u00eang l\u1ebb.<\/li>\n
  • M\u1ee9c \u0111\u1ed9 mi\u1ec1n:<\/strong>T\u1eadp trung v\u00e0o c\u00e1c th\u1ef1c th\u1ec3 kinh doanh v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 tr\u1ef1c ti\u1ebfp c\u1ee7a ch\u00fang.<\/li>\n
  • M\u1ee9c \u0111\u1ed9 th\u00e0nh ph\u1ea7n:<\/strong>\u0110i s\u00e2u v\u00e0o c\u00e1c khu v\u1ef1c ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3 khi c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n

    \u0110\u1ed9 chi ti\u1ebft c\u0169ng quy \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 chi ti\u1ebft \u0111\u01b0\u1ee3c bao g\u1ed3m. M\u1ed9t bi\u1ec3u \u0111\u1ed3 ki\u1ebfn tr\u00fac c\u1ea5p cao n\u00ean b\u1ecf qua c\u00e1c ch\u1eef k\u00fd ph\u01b0\u01a1ng th\u1ee9c v\u00e0 t\u1eadp trung v\u00e0o t\u00ean l\u1edbp v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t bi\u1ec3u \u0111\u1ed3 thi\u1ebft k\u1ebf chi ti\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1c b\u1ed9 s\u1eeda \u0111\u1ed5i quy\u1ec1n truy c\u1eadp v\u00e0 danh s\u00e1ch ph\u01b0\u01a1ng th\u1ee9c. Ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u1ee9c \u0111\u1ed9 n\u00e0y ng\u0103n ng\u1eeba qu\u00e1 t\u1ea3i th\u00f4ng tin cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c nhau.<\/p>\n

    \ud83d\udcdd Quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean v\u00e0 Ng\u1eef ngh\u0129a<\/h2>\n

    T\u00ean l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n ch\u00ednh \u0111\u1ec3 hi\u1ec3u trong m\u1ed9t bi\u1ec3u \u0111\u1ed3. N\u1ebfu t\u00ean l\u1edbp kh\u00f4ng r\u00f5 r\u00e0ng, bi\u1ec3u \u0111\u1ed3 s\u1ebd m\u1ea5t \u0111i gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3. Tu\u00e2n th\u1ee7 c\u00e1c quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nghi\u00eam ng\u1eb7t \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c. T\u00ean n\u00ean ph\u1ea3n \u00e1nh kh\u00e1i ni\u1ec7m mi\u1ec1n thay v\u00ec c\u00e1c chi ti\u1ebft th\u1ef1c hi\u1ec7n.<\/p>\n

      \n
    • \u0110\u1ecbnh h\u01b0\u1edbng mi\u1ec1n:<\/strong>S\u1eed d\u1ee5ng c\u00e1c thu\u1eadt ng\u1eef m\u00e0 c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u. Thay v\u00ec “UserController<\/code>“, h\u00e3y xem x\u00e9t “MemberService<\/code>” n\u1ebfu n\u00f3 \u0111\u1ea1i di\u1ec7n cho logic kinh doanh.<\/li>\n
    • CamelCase:<\/strong>Chu\u1ea9n h\u00f3a s\u1eed d\u1ee5ng PascalCase cho c\u00e1c l\u1edbp v\u00e0 camelCase cho c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 duy tr\u00ec s\u1ef1 \u0111\u1ed3ng nh\u1ea5t v\u1ec1 m\u1eb7t tr\u1ef1c quan.<\/li>\n
    • Kh\u00f4ng vi\u1ebft t\u1eaft:<\/strong>Tr\u00e1nh c\u00e1c t\u1eeb vi\u1ebft t\u1eaft tr\u1eeb khi ch\u00fang \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i trong nh\u00f3m.<\/li>\n
    • C\u1ea5u tr\u00fac \u0110\u1ed9ng t\u1eeb – Danh t\u1eeb:<\/strong>\u0110\u1ed1i v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c, h\u00e3y s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac \u0111\u1ed9ng t\u1eeb – danh t\u1eeb (v\u00ed d\u1ee5: “CalculateTotal<\/code>“) \u0111\u1ec3 ch\u1ec9 r\u00f5 h\u00e0nh \u0111\u1ed9ng v\u00e0 gi\u00e1 tr\u1ecb tr\u1ea3 v\u1ec1.<\/li>\n<\/ul>\n

      T\u00ednh nh\u1ea5t qu\u00e1n trong \u0111\u1eb7t t\u00ean c\u0169ng m\u1edf r\u1ed9ng sang c\u00e1c m\u1ed1i quan h\u1ec7. N\u1ebfu m\u1ed9t m\u1ed1i li\u00ean k\u1ebft \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n, nh\u00e3n \u0111\u00f3 n\u00ean m\u00f4 t\u1ea3 vai tr\u00f2 t\u1eeb c\u1ea3 hai ph\u00eda. Tr\u00e1nh c\u00e1c nh\u00e3n chung chung nh\u01b0 “Link<\/code>” ho\u1eb7c “Tham kh\u1ea3o<\/code>. Thay v\u00e0o \u0111\u00f3, h\u00e3y s\u1eed d\u1ee5ng qu\u1ea3n l\u00fd<\/code>, s\u1edf h\u1eefu<\/code>, ho\u1eb7c b\u00e1o c\u00e1o cho<\/code>.<\/p>\n

      \ud83d\udd17 Hi\u1ec3u v\u1ec1 M\u1ed1i quan h\u1ec7 v\u00e0 Li\u00ean k\u1ebft<\/h2>\n

      M\u1ed1i quan h\u1ec7 x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c l\u1edbp t\u01b0\u01a1ng t\u00e1c. Vi\u1ec7c s\u1eed d\u1ee5ng sai c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c quy\u1ebft \u0111\u1ecbnh ki\u1ebfn tr\u00fac kh\u00f4ng ch\u00ednh x\u00e1c. B\u1ed1n lo\u1ea1i m\u1ed1i quan h\u1ec7 ch\u00ednh ph\u1ea3i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch \u0111\u1ec3 ph\u1ea3n \u00e1nh v\u00f2ng \u0111\u1eddi v\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n\n\n\n\n\n\n\n\n\n
      M\u1ed1i quan h\u1ec7<\/th>\nK\u00fd hi\u1ec7u<\/th>\n\u00dd ngh\u0129a<\/th>\nS\u1ed1 l\u01b0\u1ee3ng<\/th>\n<\/tr>\n<\/thead>\n
      Li\u00ean k\u1ebft<\/td>\n\u0110\u01b0\u1eddng th\u1eb3ng<\/td>\nK\u1ebft n\u1ed1i chung<\/td>\n1..1, 0..*<\/td>\n<\/tr>\n
      Tuy\u1ec3n t\u1eadp<\/td>\nH\u00ecnh thoi m\u1edf<\/td>\nTo\u00e0n th\u1ec3 – B\u1ed9 ph\u1eadn (B\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp)<\/td>\n1..1, 0..*<\/td>\n<\/tr>\n
      S\u00e1ng t\u1ea1o<\/td>\nH\u00ecnh thoi \u0111\u1ea7y<\/td>\nTo\u00e0n th\u1ec3 – B\u1ed9 ph\u1eadn (B\u1ed9 ph\u1eadn kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp)<\/td>\n1..1, 0..*<\/td>\n<\/tr>\n
      K\u1ebf th\u1eeba<\/td>\nM\u0169i t\u00ean tam gi\u00e1c<\/td>\nT\u1ed5ng qu\u00e1t h\u00f3a (M\u1ed1i quan h\u1ec7 ‘l\u00e0 m\u1ed9t’)<\/td>\n1..1<\/td>\n<\/tr>\n
      Ph\u1ee5 thu\u1ed9c<\/td>\nM\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n<\/td>\nS\u1eed d\u1ee5ng (Ph\u1ee5 thu\u1ed9c t\u1ea1m th\u1eddi)<\/td>\n1..1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      T\u1ed5ng h\u1ee3p so v\u1edbi T\u1ed5 h\u1ee3p<\/h3>\n

      S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai. T\u1ed5ng h\u1ee3p ng\u1ee5 \u00fd m\u1ed9t m\u1ed1i quan h\u1ec7 m\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng con c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ed1i t\u01b0\u1ee3ng cha. V\u00ed d\u1ee5, m\u1ed9t Ph\u00f2ng ban<\/code> c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u Nh\u00e2n vi\u00ean<\/code>, nh\u01b0ng n\u1ebfu ph\u00f2ng ban b\u1ecb gi\u1ea3i th\u1ec3, nh\u00e2n vi\u00ean v\u1eabn t\u1ed3n t\u1ea1i. T\u1ed5 h\u1ee3p m\u1ea1nh h\u01a1n. M\u1ed9t Ng\u00f4i nh\u00e0<\/code> \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb C\u00e1c ph\u00f2ng<\/code>. N\u1ebfu ng\u00f4i nh\u00e0 b\u1ecb ph\u00e1 h\u1ee7y, c\u00e1c ph\u00f2ng s\u1ebd kh\u00f4ng c\u00f2n t\u1ed3n t\u1ea1i trong ng\u1eef c\u1ea3nh \u0111\u00f3. Vi\u1ec7c s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u ch\u00ednh x\u00e1c gi\u00fap l\u00e0m r\u00f5 quy\u1ec1n s\u1edf h\u1eefu v\u00e0 qu\u1ea3n l\u00fd v\u00f2ng \u0111\u1eddi.<\/p>\n

      Ph\u00e2n c\u1ea5p th\u1eeba k\u1ebf<\/h3>\n

      Vi\u1ec7c l\u1ea1m d\u1ee5ng th\u1eeba k\u1ebf d\u1eabn \u0111\u1ebfn c\u00e1c ph\u00e2n c\u1ea5p s\u00e2u tr\u1edf n\u00ean d\u1ec5 v\u1ee1. H\u00e3y \u01b0u ti\u00ean t\u1ed5 h\u1ee3p thay v\u00ec th\u1eeba k\u1ebf khi c\u00f3 th\u1ec3. N\u1ebfu m\u1ed9t l\u1edbp c\u00f3 m\u1ed1i quan h\u1ec7 kh\u00f4ng ph\u1ea3i l\u00e0 quan h\u1ec7 \u201cl\u00e0 m\u1ed9t\u201d nghi\u00eam ng\u1eb7t, th\u00ec kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng th\u1eeba k\u1ebf. H\u00e3y gi\u1eef cho c\u00e1c ph\u00e2n c\u1ea5p ph\u1eb3ng. Ba m\u1ee9c \u0111\u1ed9 s\u00e2u th\u01b0\u1eddng l\u00e0 gi\u1edbi h\u1ea1n t\u1ed1i \u0111a \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng \u0111\u1ecdc.<\/p>\n

      C\u00e1c ph\u1ee5 thu\u1ed9c<\/h3>\n

      C\u00e1c ph\u1ee5 thu\u1ed9c cho th\u1ea5y m\u1ed9t l\u1edbp s\u1eed d\u1ee5ng t\u1ea1m th\u1eddi m\u1ed9t l\u1edbp kh\u00e1c, c\u00f3 th\u1ec3 l\u00e0 tham s\u1ed1 trong m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c. \u0110\u00e2y l\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ed5 bi\u1ebfn nh\u1ea5t nh\u01b0ng c\u0169ng d\u1ec5 b\u1ecb b\u1ecf qua nh\u1ea5t. Vi\u1ec7c \u0111\u00e1nh d\u1ea5u ch\u00fang m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m gh\u00e9p n\u1ed1i. Gh\u00e9p n\u1ed1i cao cho th\u1ea5y nh\u1eefng thay \u0111\u1ed5i trong m\u1ed9t l\u1edbp c\u00f3 th\u1ec3 lan truy\u1ec1n sang nhi\u1ec1u l\u1edbp kh\u00e1c.<\/p>\n

      \ud83d\udc41\ufe0f Qu\u1ea3n l\u00fd quy\u1ec1n hi\u1ec3n th\u1ecb v\u00e0 c\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh<\/h2>\n

      C\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh quy\u1ec1n hi\u1ec3n th\u1ecb ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c th\u00e0nh vi\u00ean c\u1ee7a l\u1edbp. Trong m\u1ed9t bi\u1ec3u \u0111\u1ed3, vi\u1ec7c hi\u1ec3n th\u1ecb ch\u00fang ch\u00ednh x\u00e1c gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n hi\u1ec3u r\u00f5 c\u00e1c ranh gi\u1edbi \u0111\u00f3ng g\u00f3i. M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ea3i bi\u1ec3u \u0111\u1ed3 n\u00e0o c\u0169ng c\u1ea7n hi\u1ec3n th\u1ecb m\u1ecdi ph\u01b0\u01a1ng th\u1ee9c, nh\u01b0ng giao di\u1ec7n c\u00f4ng khai ph\u1ea3i \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/p>\n

        \n
      • C\u00f4ng khai (+):<\/strong> C\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb b\u1ea5t k\u1ef3 l\u1edbp n\u00e0o kh\u00e1c. \u0110\u00e2y l\u00e0 h\u1ee3p \u0111\u1ed3ng c\u1ee7a l\u1edbp.<\/li>\n
      • Ri\u00eang t\u01b0 (-):<\/strong> Ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp b\u00ean trong l\u1edbp. Qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i n\u1ed9i b\u1ed9.<\/li>\n
      • B\u1ea3o v\u1ec7 (#):<\/strong> C\u00f3 th\u1ec3 truy c\u1eadp b\u00ean trong l\u1edbp v\u00e0 c\u00e1c l\u1edbp con.<\/li>\n
      • G\u00f3i (~\/~):<\/strong> C\u00f3 th\u1ec3 truy c\u1eadp trong c\u00f9ng g\u00f3i ho\u1eb7c kh\u00f4ng gian t\u00ean.<\/li>\n<\/ul>\n

        Khi t\u1ea1o bi\u1ec3u \u0111\u1ed3 cho thi\u1ebft k\u1ebf t\u1ed5ng th\u1ec3, vi\u1ec7c hi\u1ec3n th\u1ecb c\u00e1c ph\u01b0\u01a1ng th\u1ee9c ri\u00eang t\u01b0 s\u1ebd t\u1ea1o ra nhi\u1ec1u th\u00f4ng tin nhi\u1ec5u. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf chi ti\u1ebft, vi\u1ec7c \u1ea9n ch\u00fang c\u00f3 th\u1ec3 l\u00e0m m\u1edd logic. H\u00e3y t\u00ecm s\u1ef1 c\u00e2n b\u1eb1ng. N\u1ebfu m\u1ed9t l\u1edbp c\u00f3 hai m\u01b0\u01a1i ph\u01b0\u01a1ng th\u1ee9c ri\u00eang t\u01b0, h\u00e3y t\u00f3m t\u1eaft ch\u00fang ho\u1eb7c ch\u1ec9 hi\u1ec3n th\u1ecb nh\u1eefng ph\u01b0\u01a1ng th\u1ee9c li\u00ean quan \u0111\u1ebfn ng\u1eef c\u1ea3nh c\u1ee7a bi\u1ec3u \u0111\u1ed3 hi\u1ec7n t\u1ea1i.<\/p>\n

        C\u00e1c th\u00e0nh vi\u00ean t\u0129nh<\/h3>\n

        C\u00e1c th\u00e0nh vi\u00ean t\u0129nh thu\u1ed9c v\u1ec1 ch\u00ednh l\u1edbp ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t th\u1ec3 hi\u1ec7n. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ea1ch ch\u00e2n trong c\u00e1c s\u01a1 \u0111\u1ed3. H\u00e3y s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch ti\u1ebft ki\u1ec7m cho c\u00e1c h\u00e0m ti\u1ec7n \u00edch ho\u1eb7c h\u1eb1ng s\u1ed1. Vi\u1ec7c s\u1eed d\u1ee5ng t\u0129nh qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 khi\u1ebfn vi\u1ec7c ki\u1ec3m th\u1eed \u0111\u01a1n v\u1ecb tr\u1edf n\u00ean kh\u00f3 kh\u0103n v\u00e0 \u0111\u01b0a v\u00e0o tr\u1ea1ng th\u00e1i to\u00e0n c\u1ee5c.<\/p>\n

        \ud83d\udcd0 X\u1eed l\u00fd \u0110\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 Quy m\u00f4<\/h2>\n

        Khi c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, c\u00e1c s\u01a1 \u0111\u1ed3 c\u0169ng ph\u00e1t tri\u1ec3n theo. Vi\u1ec7c qu\u1ea3n l\u00fd s\u1ef1 t\u0103ng tr\u01b0\u1edfng n\u00e0y \u0111\u00f2i h\u1ecfi c\u00e1c k\u1ef9 thu\u1eadt c\u1ea5u tr\u00fac \u0111\u1ec3 duy tr\u00ec t\u00ednh r\u00f5 r\u00e0ng.<\/p>\n

        Ph\u00e2n v\u00f9ng<\/h3>\n

        Ph\u00e2n v\u00f9ng chia m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbn th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c r\u00e3nh b\u01a1i (swimlanes) ho\u1eb7c c\u00e1c h\u1ed9p ri\u00eang bi\u1ec7t \u0111\u1ec3 nh\u00f3m c\u00e1c l\u1edbp li\u00ean quan. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng nhanh ch\u00f3ng t\u00ecm th\u1ea5y ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3 m\u00e0 kh\u00f4ng c\u1ea7n qu\u00e9t to\u00e0n b\u1ed9 v\u00f9ng l\u00e0m vi\u1ec7c.<\/p>\n

        Giao di\u1ec7n<\/h3>\n

        Giao di\u1ec7n \u0111\u1ecbnh ngh\u0129a m\u1ed9t h\u1ee3p \u0111\u1ed3ng m\u00e0 c\u00e1c l\u1edbp ph\u1ea3i th\u1ef1c hi\u1ec7n. Trong c\u00e1c s\u01a1 \u0111\u1ed3, ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t k\u00fd hi\u1ec7u \u0111\u1eb7c bi\u1ec7t (stereotype) ho\u1eb7c m\u1ed9t h\u00ecnh d\u1ea1ng c\u1ee5 th\u1ec3 (nh\u01b0 h\u00ecnh tr\u00f2n c\u00f3 d\u1ea5u c\u1ed9ng). Vi\u1ec7c s\u1eed d\u1ee5ng giao di\u1ec7n gi\u00fap gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c. Thay v\u00ec m\u1ed9t l\u1edbp ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t th\u1ef1c thi c\u1ee5 th\u1ec3, n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t giao di\u1ec7n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p s\u1ef1 linh ho\u1ea1t v\u00e0 thay th\u1ebf c\u00e1c th\u1ef1c thi m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i m\u00e3 c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n

        S\u1ef1 ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c g\u00f3i<\/h3>\n

        \u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng r\u1ea5t l\u1edbn, m\u1ed9t s\u01a1 \u0111\u1ed3 duy nh\u1ea5t l\u00e0 kh\u00f4ng \u0111\u1ee7. H\u00e3y t\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 hi\u1ec3n th\u1ecb s\u1ef1 ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c g\u00f3i, sau \u0111\u00f3 t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp chi ti\u1ebft cho t\u1eebng g\u00f3i. C\u00e1ch ti\u1ebfp c\u1eadn ph\u00e2n c\u1ea5p n\u00e0y cho ph\u00e9p c\u00e1c b\u00ean li\u00ean quan nh\u00ecn th\u1ea5y b\u1ee9c tranh t\u1ed5ng th\u1ec3 m\u00e0 kh\u00f4ng b\u1ecb l\u1ea1c v\u00e0o chi ti\u1ebft.<\/p>\n

        K\u1ef9 thu\u1eadt thu\u1eadn v\u00e0 k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c<\/h3>\n

        M\u1eb7c d\u00f9 vi\u1ec7c t\u1ea1o th\u1ee7 c\u00f4ng mang l\u1ea1i s\u1ef1 ki\u1ec3m so\u00e1t, nh\u01b0ng k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c t\u1eeb m\u00e3 ngu\u1ed3n \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c. Tuy nhi\u00ean, ch\u1ec9 d\u1ef1a v\u00e0o k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed9n x\u1ed9n bao g\u1ed3m m\u1ecdi th\u1ee9. Vi\u1ec7c tinh ch\u1ec9nh th\u1ee7 c\u00f4ng l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c chi ti\u1ebft th\u1ef1c thi n\u1ed9i b\u1ed9 kh\u00f4ng li\u00ean quan \u0111\u1ebfn ki\u1ebfn tr\u00fac.<\/p>\n

        \ud83d\udcdd T\u00e0i li\u1ec7u v\u00e0 Ghi ch\u00fa<\/h2>\n

        \u0110\u00f4i khi, m\u1ed9t k\u00fd hi\u1ec7u ho\u1eb7c m\u1ed1i quan h\u1ec7 l\u00e0 ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 truy\u1ec1n \u0111\u1ea1t \u0111\u1ea7y \u0111\u1ee7 \u00fd \u0111\u1ecbnh. C\u00e1c ghi ch\u00fa v\u00e0 ch\u00fa th\u00edch cung c\u1ea5p ng\u1eef c\u1ea3nh m\u00e0 c\u00fa ph\u00e1p c\u1ee7a s\u01a1 \u0111\u1ed3 kh\u00f4ng th\u1ec3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c.<\/p>\n

          \n
        • R\u00e0ng bu\u1ed9c:<\/strong> S\u1eed d\u1ee5ng v\u0103n b\u1ea3n \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh c\u00e1c r\u00e0ng bu\u1ed9c nh\u01b0 “{duy nh\u1ea5t}\"<\/code> ho\u1eb7c “{ph\u1ea3i l\u00e0 s\u1ed1 d\u01b0\u01a1ng}\"<\/code>.<\/li>\n
        • Quy t\u1eafc kinh doanh:<\/strong> Th\u00eam ghi ch\u00fa \u0111\u1ec3 gi\u1ea3i th\u00edch logic ph\u1ee9c t\u1ea1p tr\u1ea3i r\u1ed9ng tr\u00ean nhi\u1ec1u l\u1edbp.<\/li>\n
        • B\u00ecnh lu\u1eadn:<\/strong> S\u1eed d\u1ee5ng b\u00ecnh lu\u1eadn \u0111\u1ec3 gi\u1ea3i th\u00edch “t\u1ea1i sao” m\u1ed9t quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf c\u1ee5 th\u1ec3 l\u1ea1i \u0111\u01b0\u1ee3c \u0111\u01b0a ra.<\/em>t\u1ea1i sao” m\u1ed9t quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf c\u1ee5 th\u1ec3 l\u1ea1i \u0111\u01b0\u1ee3c \u0111\u01b0a ra.<\/li>\n<\/ul>\n

          C\u00e1c ghi ch\u00fa n\u00e0y n\u00ean ng\u1eafn g\u1ecdn. C\u00e1c \u0111o\u1ea1n v\u0103n d\u00e0i n\u00ean thu\u1ed9c v\u1ec1 m\u1ed9t t\u00e0i li\u1ec7u ri\u00eang ho\u1eb7c trang wiki. S\u01a1 \u0111\u1ed3 n\u00ean tr\u1ecf \u0111\u1ebfn t\u00e0i li\u1ec7u, ch\u1ee9 kh\u00f4ng ch\u1ee9a to\u00e0n b\u1ed9 n\u1ed9i dung \u0111\u00f3.<\/p>\n

          \ud83d\udd04 B\u1ea3o tr\u00ec v\u00e0 Ti\u1ebfn h\u00f3a<\/h2>\n

          M\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng. M\u00e3 ngu\u1ed3n thay \u0111\u1ed5i, v\u00e0 s\u01a1 \u0111\u1ed3 c\u0169ng ph\u1ea3i thay \u0111\u1ed5i theo. C\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed7i th\u1eddi c\u00f2n t\u1ec7 h\u01a1n l\u00e0 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3 n\u00e0o c\u1ea3, b\u1edfi v\u00ec ch\u00fang \u0111\u00e1nh l\u1eeba c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n.<\/p>\n

          Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n<\/h3>\n

          L\u01b0u tr\u1eef c\u00e1c t\u1ec7p s\u01a1 \u0111\u1ed3 trong c\u00f9ng h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n v\u1edbi m\u00e3 ngu\u1ed3n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c phi\u00ean b\u1ea3n s\u01a1 \u0111\u1ed3 kh\u1edbp v\u1edbi c\u00e1c phi\u00ean b\u1ea3n m\u00e3. Khi m\u1ed9t l\u1edbp \u0111\u01b0\u1ee3c th\u00eam v\u00e0o ho\u1eb7c lo\u1ea1i b\u1ecf, cam k\u1ebft (commit) s\u01a1 \u0111\u1ed3 n\u00ean \u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00f9ng m\u1ed9t y\u00eau c\u1ea7u k\u00e9o (pull request).<\/p>\n

          \u0110\u1ed3ng b\u1ed9 h\u00f3a v\u1edbi M\u00e3<\/h3>\n

          X\u00e2y d\u1ef1ng quy tr\u00ecnh l\u00e0m vi\u1ec7c trong \u0111\u00f3 s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o ho\u1eb7c c\u1eadp nh\u1eadt trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng ho\u1eb7c nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a quy tr\u00ecnh t\u00e0i li\u1ec7u h\u00f3a. N\u1ebfu c\u1ea7n c\u1eadp nh\u1eadt th\u1ee7 c\u00f4ng, h\u00e3y ch\u1ec9 \u0111\u1ecbnh ch\u1ee7 s\u1edf h\u1eefu. Ch\u1ec9 \u0111\u1ecbnh m\u1ed9t ki\u1ebfn tr\u00fac s\u01b0 tr\u01b0\u1edfng ho\u1eb7c nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ea5p cao ch\u1ecbu tr\u00e1ch nhi\u1ec7m xem x\u00e9t c\u00e1c thay \u0111\u1ed5i c\u1ee7a s\u01a1 \u0111\u1ed3.<\/p>\n

          T\u00e1i c\u1ea5u tr\u00fac S\u01a1 \u0111\u1ed3<\/h3>\n

          C\u0169ng gi\u1ed1ng nh\u01b0 m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c t\u00e1i c\u1ea5u tr\u00fac, s\u01a1 \u0111\u1ed3 c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c t\u00e1i c\u1ea5u tr\u00fac. N\u1ebfu b\u1ea1n nh\u1eadn th\u1ea5y m\u00ecnh li\u00ean t\u1ee5c v\u1ebd c\u00e1c m\u0169i t\u00ean c\u1eaft ngang to\u00e0n b\u1ed9 b\u1ea3ng v\u1ebd, th\u00ec b\u1ed1 c\u1ee5c c\u00f3 th\u1ec3 \u0111ang b\u1ecb l\u1ed7i. H\u00e3y t\u1ed5 ch\u1ee9c l\u1ea1i c\u00e1c l\u1edbp \u0111\u1ec3 gi\u1ea3m thi\u1ec3u c\u00e1c \u0111\u01b0\u1eddng c\u1eaft nhau. Nh\u00f3m c\u00e1c l\u1edbp d\u1ef1a tr\u00ean m\u1eadt \u0111\u1ed9 m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u00e0 l\u00e0m cho s\u01a1 \u0111\u1ed3 d\u1ec5 d\u00e0ng \u0111i\u1ec1u h\u01b0\u1edbng h\u01a1n.<\/p>\n

          \u26a0\ufe0f Nh\u1eefng Sai l\u1ea7m Ph\u1ed5 bi\u1ebfn C\u1ea7n Tr\u00e1nh<\/h2>\n

          Ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi th\u1ef1c h\u00e0nh gi\u00e0u kinh nghi\u1ec7m c\u0169ng m\u1eafc ph\u1ea3i nh\u1eefng c\u00e1i b\u1eaby l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng s\u01a1 \u0111\u1ed3. Nh\u1eadn ra nh\u1eefng sai l\u1ea7m n\u00e0y s\u1edbm c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 th\u1eddi gian.<\/p>\n\n\n\n\n\n\n\n\n\n
          Sai l\u1ea7m<\/th>\nT\u00e1c \u0111\u1ed9ng<\/th>\nBi\u1ec7n ph\u00e1p Gi\u1ea3m thi\u1ec3u<\/th>\n<\/tr>\n<\/thead>\n
          K\u1ef9 thu\u1eadt h\u00f3a qu\u00e1 m\u1ee9c<\/td>\nVi\u1ebft s\u01a1 \u0111\u1ed3 t\u1ed1n nhi\u1ec1u th\u1eddi gian h\u01a1n vi\u1ebft m\u00e3<\/td>\nT\u1eadp trung v\u00e0o ki\u1ebfn tr\u00fac, kh\u00f4ng ph\u1ea3i m\u1ecdi ph\u01b0\u01a1ng th\u1ee9c<\/td>\n<\/tr>\n
          S\u1ef1 ph\u1ee5 thu\u1ed9c \u1ea9n<\/td>\nS\u1ef1 g\u1eafn k\u1ebft kh\u00f4ng r\u00f5 r\u00e0ng<\/td>\n\u0110\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng t\u1ea5t c\u1ea3 c\u00e1c s\u1ef1 ph\u1ee5 thu\u1ed9c<\/td>\n<\/tr>\n
          Qu\u00e1 nhi\u1ec1u m\u1ed1i li\u00ean k\u1ebft<\/td>\nH\u00ecnh \u1ea3nh l\u1ed9n x\u1ed9n<\/td>\nS\u1eed d\u1ee5ng m\u0169i t\u00ean \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ec3 th\u1ec3 hi\u1ec7n h\u01b0\u1edbng<\/td>\n<\/tr>\n
          B\u1ecf qua t\u00ednh \u0111a tr\u1ecb<\/td>\nM\u1ed1i quan h\u1ec7 d\u1eef li\u1ec7u kh\u00f4ng ch\u00ednh x\u00e1c<\/td>\nLu\u00f4n x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a<\/td>\n<\/tr>\n
          M\u00f4 h\u00ecnh l\u1ed7i th\u1eddi<\/td>\nS\u1ef1 nh\u1ea7m l\u1eabn cho c\u00e1c th\u00e0nh vi\u00ean m\u1edbi trong nh\u00f3m<\/td>\nT\u00edch h\u1ee3p c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 v\u00e0o CI\/CD<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          S\u1ef1 l\u1ed9n x\u1ed9n v\u1ec1 m\u1eb7t tr\u1ef1c quan<\/h3>\n

          Qu\u00e1 nhi\u1ec1u \u0111\u01b0\u1eddng c\u1eaft nhau l\u00e0m cho s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a s\u1ef1 g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd. N\u1ebfu s\u01a1 \u0111\u1ed3 tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ea1ng nh\u1ec7n, h\u00e3y xem x\u00e9t l\u1ea1i thi\u1ebft k\u1ebf. C\u00e2n nh\u1eafc chia c\u00e1c l\u1edbp th\u00e0nh c\u00e1c \u0111\u01a1n v\u1ecb nh\u1ecf h\u01a1n ho\u1eb7c gi\u1edbi thi\u1ec7u c\u00e1c giao di\u1ec7n trung gian \u0111\u1ec3 gi\u1ea3m c\u00e1c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp.<\/p>\n

          T\u00ednh \u0111\u1ecbnh h\u01b0\u1edbng<\/h3>\n

          C\u00e1c \u0111\u01b0\u1eddng li\u00ean k\u1ebft th\u01b0\u1eddng c\u00f3 hai chi\u1ec1u. Trong th\u1ef1c t\u1ebf, vi\u1ec7c \u0111i\u1ec1u h\u01b0\u1edbng th\u01b0\u1eddng ch\u1ec9 di\u1ec5n ra theo m\u1ed9t h\u01b0\u1edbng. H\u00e3y s\u1eed d\u1ee5ng \u0111\u1ea7u m\u0169i t\u00ean \u0111\u1ec3 ch\u1ec9 r\u00f5 h\u01b0\u1edbng \u0111i\u1ec1u h\u01b0\u1edbng. N\u1ebfu l\u1edbp A bi\u1ebft v\u1ec1 l\u1edbp B, nh\u01b0ng B kh\u00f4ng bi\u1ebft v\u1ec1 A, h\u00e3y v\u1ebd m\u1ed9t m\u0169i t\u00ean c\u00f3 h\u01b0\u1edbng. \u0110i\u1ec1u n\u00e0y l\u00e0m r\u00f5 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

          \ud83d\udd0d Xem x\u00e9t v\u00e0 X\u00e1c th\u1ef1c<\/h2>\n

          Tr\u01b0\u1edbc khi ho\u00e0n thi\u1ec7n m\u1ed9t s\u01a1 \u0111\u1ed3, n\u00f3 c\u1ea7n ph\u1ea3i tr\u1ea3i qua quy tr\u00ecnh xem x\u00e9t. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 li\u00ean quan \u0111\u1ebfn c\u00fa ph\u00e1p m\u00e0 c\u00f2n li\u00ean quan \u0111\u1ebfn t\u00ednh \u0111\u00fang \u0111\u1eafn v\u1ec1 m\u1eb7t logic.<\/p>\n

            \n
          • Ki\u1ec3m tra t\u00ednh nh\u1ea5t qu\u00e1n:<\/strong> C\u00e1c t\u00ean l\u1edbp c\u00f3 kh\u1edbp v\u1edbi c\u01a1 s\u1edf m\u00e3 kh\u00f4ng?<\/li>\n
          • Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7:<\/strong> T\u1ea5t c\u1ea3 c\u00e1c th\u1ef1c th\u1ec3 b\u1eaft bu\u1ed9c c\u00f3 hi\u1ec7n di\u1ec7n kh\u00f4ng?<\/li>\n
          • Ki\u1ec3m tra t\u00ednh d\u1ec5 \u0111\u1ecdc:<\/strong> M\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean m\u1edbi c\u00f3 th\u1ec3 hi\u1ec3u lu\u1ed3ng x\u1eed l\u00fd trong v\u00f2ng n\u0103m ph\u00fat kh\u00f4ng?<\/li>\n<\/ul>\n

            Ph\u1ea3n h\u1ed3i t\u1eeb \u0111\u1ed3ng nghi\u1ec7p l\u00e0 v\u00f4 gi\u00e1. \u0110\u00f4i khi, m\u1ed9t bi\u1ec3u \u0111\u1ed3 c\u00f3 \u00fd ngh\u0129a v\u1edbi ng\u01b0\u1eddi t\u1ea1o l\u1ea1i g\u00e2y nh\u1ea7m l\u1eabn cho ng\u01b0\u1eddi kh\u00e1c. C\u00e1c bu\u1ed5i \u0111i qua (walkthrough) n\u01a1i b\u1ea1n gi\u1ea3i th\u00edch bi\u1ec3u \u0111\u1ed3 cho \u0111\u1ed3ng nghi\u1ec7p c\u00f3 th\u1ec3 l\u00e0m l\u1ed9 ra nh\u1eefng \u0111i\u1ec3m m\u01a1 h\u1ed3 m\u00e0 tr\u01b0\u1edbc \u0111\u00e2y kh\u00f4ng ai nh\u1eadn th\u1ea5y.<\/p>\n

            \ud83d\udee0\ufe0f T\u00edch h\u1ee3p v\u00e0o quy tr\u00ecnh ph\u00e1t tri\u1ec3n<\/h2>\n

            Vi\u1ec7c t\u00edch h\u1ee3p v\u1ebd bi\u1ec3u \u0111\u1ed3 v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c h\u00e0ng ng\u00e0y \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u lu\u00f4n li\u00ean quan. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 coi bi\u1ec3u \u0111\u1ed3 nh\u01b0 m\u00e3 ngu\u1ed3n. Bi\u1ec3u \u0111\u1ed3 c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t, ki\u1ec3m tra \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u01b0\u1ee3c cam k\u1ebft (commit).<\/p>\n

            Khi b\u1eaft \u0111\u1ea7u m\u1ed9t t\u00ednh n\u0103ng m\u1edbi, h\u00e3y c\u1eadp nh\u1eadt bi\u1ec3u \u0111\u1ed3 \u0111\u1ec3 ph\u1ea3n \u00e1nh c\u00e1c l\u1edbp m\u1edbi ho\u1eb7c c\u00e1c thay \u0111\u1ed5i. Th\u1ef1c h\u00e0nh n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cm\u00f4 h\u00ecnh h\u00f3a khi vi\u1ebft m\u00e3\u201d, gi\u00fap gi\u1eef cho bi\u1ec3u di\u1ec5n tr\u1ef1c quan \u0111\u1ed3ng b\u1ed9 v\u1edbi vi\u1ec7c tri\u1ec3n khai. N\u00f3 ng\u0103n ch\u1eb7n s\u1ef1 l\u1ec7ch l\u1ea1c x\u1ea3y ra khi t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt nhi\u1ec1u th\u00e1ng sau khi t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh.<\/p>\n

            H\u01a1n n\u1eefa, h\u00e3y s\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf \u0111\u1ec3 x\u00e1c th\u1ef1c c\u00e1c y\u00eau c\u1ea7u. N\u1ebfu c\u00e1c m\u1ed1i quan h\u1ec7 kh\u00f4ng c\u00f3 \u00fd ngh\u0129a trong bi\u1ec3u \u0111\u1ed3, ch\u00fang c\u0169ng s\u1ebd kh\u00f4ng c\u00f3 \u00fd ngh\u0129a trong m\u00e3 ngu\u1ed3n. Vi\u1ec7c s\u1eeda l\u1ed7i \u1edf giai \u0111o\u1ea1n n\u00e0y r\u1ebb h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi vi\u1ec7c s\u1eeda ch\u00fang sau khi tri\u1ec3n khai.<\/p>\n

            \ud83c\udf10 Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn v\u00e0 c\u1ed9ng t\u00e1c<\/h2>\n

            Bi\u1ec3u \u0111\u1ed3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c chia s\u1ebb v\u1edbi c\u00e1c b\u00ean li\u00ean quan kh\u00f4ng chuy\u00ean v\u1ec1 k\u1ef9 thu\u1eadt. H\u00e3y \u0111\u1ea3m b\u1ea3o bi\u1ec3u \u0111\u1ed3 d\u1ec5 ti\u1ebfp c\u1eadn v\u1edbi h\u1ecd. Tr\u00e1nh s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt qu\u00e1 m\u1ee9c n\u1ebfu c\u00f3 th\u1ec3. S\u1eed d\u1ee5ng m\u00e0u s\u1eafc m\u1ed9t c\u00e1ch ti\u1ebft ki\u1ec7m \u0111\u1ec3 l\u00e0m n\u1ed5i b\u1eadt c\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng, nh\u01b0ng h\u00e3y \u0111\u1ea3m b\u1ea3o bi\u1ec3u \u0111\u1ed3 v\u1eabn d\u1ec5 \u0111\u1ecdc khi in ra b\u1eb1ng m\u00e0u \u0111en tr\u1eafng.<\/p>\n

            C\u00e1c c\u00f4ng c\u1ee5 c\u1ed9ng t\u00e1c cho ph\u00e9p nhi\u1ec1u ng\u01b0\u1eddi l\u00e0m vi\u1ec7c tr\u00ean c\u00f9ng m\u1ed9t bi\u1ec3u \u0111\u1ed3 c\u00f9ng l\u00fac. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 t\u0103ng t\u1ed1c quy tr\u00ecnh thi\u1ebft k\u1ebf, nh\u01b0ng \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n nghi\u00eam ng\u1eb7t \u0111\u1ec3 tr\u00e1nh xung \u0111\u1ed9t. H\u00e3y \u0111\u1ea3m b\u1ea3o c\u00e1c thay \u0111\u1ed5i \u0111\u01b0\u1ee3c xem x\u00e9t tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c h\u1ee3p nh\u1ea5t v\u00e0o nh\u00e1nh ch\u00ednh.<\/p>\n

            \ud83d\udcca T\u00f3m t\u1eaft c\u00e1c \u0111i\u1ec3m ch\u00ednh<\/h2>\n

            \u0110\u1ec3 t\u1ea1o ra c\u00e1c Bi\u1ec3u \u0111\u1ed3 L\u1edbp UML hi\u1ec7u qu\u1ea3, h\u00e3y t\u1eadp trung v\u00e0o t\u00ednh r\u00f5 r\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec. B\u1eaft \u0111\u1ea7u v\u1edbi ph\u1ea1m vi r\u00f5 r\u00e0ng v\u00e0 s\u1eed d\u1ee5ng quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nh\u1ea5t qu\u00e1n. \u00c1p d\u1ee5ng c\u00e1c m\u1ed1i quan h\u1ec7 ch\u00ednh x\u00e1c \u0111\u1ec3 ph\u1ea3n \u00e1nh v\u00f2ng \u0111\u1eddi v\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c. Qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p th\u00f4ng qua ph\u00e2n v\u00f9ng v\u00e0 giao di\u1ec7n. Ghi ch\u00fa c\u00e1c ch\u00fa th\u00edch khi c\u1ea7n thi\u1ebft nh\u01b0ng h\u00e3y gi\u1eef ch\u00fang ng\u1eafn g\u1ecdn. Duy tr\u00ec bi\u1ec3u \u0111\u1ed3 song song v\u1edbi m\u00e3 ngu\u1ed3n \u0111\u1ec3 ng\u0103n ng\u1eeba l\u1ed7i th\u1eddi. Tr\u00e1nh c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u01b0 thi\u1ebft k\u1ebf qu\u00e1 m\u1ee9c v\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c \u1ea9n.<\/p>\n

            B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh n\u00e0y, bi\u1ec3u \u0111\u1ed3 tr\u1edf th\u00e0nh m\u1ed9t t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 cho to\u00e0n b\u1ed9 \u0111\u1ed9i ng\u0169. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 ngu\u1ed3n s\u1ef1 th\u1eadt duy nh\u1ea5t, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho giao ti\u1ebfp v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro l\u1ec7ch l\u1ea1c ki\u1ebfn tr\u00fac. N\u1ed7 l\u1ef1c \u0111\u1ea7u t\u01b0 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t bi\u1ec3u \u0111\u1ed3 c\u00f3 c\u1ea5u tr\u00fac t\u1ed1t s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch l\u1edbn th\u00f4ng qua vi\u1ec7c gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec v\u00e0 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 h\u1ec7 th\u1ed1ng.<\/p>\n

            H\u00e3y nh\u1edb r\u1eb1ng m\u1ee5c ti\u00eau l\u00e0 giao ti\u1ebfp, kh\u00f4ng ch\u1ec9 l\u00e0 t\u00e0i li\u1ec7u h\u00f3a. M\u1ed9t bi\u1ec3u \u0111\u1ed3 \u0111\u01b0\u1ee3c \u0111\u1ed9i ng\u0169 hi\u1ec3u r\u00f5 l\u00e0 m\u1ed9t bi\u1ec3u \u0111\u1ed3 th\u00e0nh c\u00f4ng. H\u00e3y \u01b0u ti\u00ean nhu c\u1ea7u c\u1ee7a ng\u01b0\u1eddi \u0111\u1ecdc h\u01a1n l\u00e0 mong mu\u1ed1n th\u1ec3 hi\u1ec7n m\u1ecdi chi ti\u1ebft. H\u00e3y gi\u1eef n\u00f3 \u0111\u01a1n gi\u1ea3n, gi\u1eef n\u00f3 ch\u00ednh x\u00e1c v\u00e0 gi\u1eef n\u00f3 lu\u00f4n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt.<\/p>\n","protected":false},"excerpt":{"rendered":"

            Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o giao ti\u1ebfp tr\u1ef1c quan. Trong s\u1ed1 c\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c nhau c\u00f3 s\u1eb5n, bi\u1ec3u \u0111\u1ed3 l\u1edbp Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a…<\/p>\n","protected":false},"author":1,"featured_media":409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho Bi\u1ec3u \u0111\u1ed3 L\u1edbp UML \ud83c\udfaf","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch t\u1ea1o ra c\u00e1c Bi\u1ec3u \u0111\u1ed3 L\u1edbp UML r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec. Th\u00e0nh th\u1ea1o vi\u1ec7c \u0111\u1eb7t t\u00ean, c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111\u1ec3 c\u00f3 t\u00e0i li\u1ec7u ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m t\u1ed1t h\u01a1n.","inline_featured_image":false,"source_url":"","source_h1_title":"","fifu_image_url":"","fifu_image_alt":"","_fifu_image_alt":"","fifu_alt":"","_fifu_alt":"","fifu_image_title":"","_fifu_image_title":"","fifu_input_alt":"","vp_image_hash":"","footnotes":""},"categories":[4],"tags":[5,7],"asset-category":[],"class_list":["post-408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-class-diagram"],"source_url":"","source_h1_title":"","fifu_image_url":"","fifu_image_alt":"","vp_image_hash":"","yoast_head":"\nTh\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho Bi\u1ec3u \u0111\u1ed3 L\u1edbp UML \ud83c\udfaf<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch t\u1ea1o ra c\u00e1c Bi\u1ec3u \u0111\u1ed3 L\u1edbp UML r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec. 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