{"id":3529,"date":"2026-03-29T15:30:42","date_gmt":"2026-03-29T07:30:42","guid":{"rendered":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/"},"modified":"2026-03-29T15:30:42","modified_gmt":"2026-03-29T07:30:42","slug":"refactoring-legacy-code-using-package-diagrams","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/","title":{"rendered":"Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i"},"content":{"rendered":"

C\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m ph\u00e1t tri\u1ec3n theo th\u1eddi gian. Y\u00eau c\u1ea7u thay \u0111\u1ed5i, \u0111\u1ed9i ng\u0169 m\u1edf r\u1ed9ng v\u00e0 c\u00e1c m\u1ed1c th\u1eddi gian di chuy\u1ec3n. Theo th\u1eddi gian, s\u1ef1 ph\u00e1t tri\u1ec3n t\u1ef1 nhi\u00ean n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng n\u1ee3 k\u1ef9 thu\u1eadt \u0111\u00e1ng k\u1ec3. C\u01a1 s\u1edf m\u00e3 ngu\u1ed3n tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi r\u1ed1i r\u1eafm c\u00e1c ph\u1ee5 thu\u1ed9c, khi\u1ebfn vi\u1ec7c b\u1ea3o tr\u00ec tr\u1edf n\u00ean kh\u00f3 kh\u0103n v\u00e0 vi\u1ec7c th\u00eam t\u00ednh n\u0103ng tr\u1edf n\u00ean r\u1ee7i ro. M\u1ed9t trong nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 hi\u1ec3u v\u00e0 gi\u1ea3i quy\u1ebft s\u1ef1 ph\u1ee9c t\u1ea1p n\u00e0y l\u00e0 th\u00f4ng qua tr\u1ef1c quan h\u00f3a ki\u1ebfn tr\u00fac, c\u1ee5 th\u1ec3 l\u00e0 s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i. H\u01b0\u1edbng d\u1eabn n\u00e0y chi ti\u1ebft m\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p to\u00e0n di\u1ec7n v\u1ec1 vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i nh\u1eb1m kh\u00f4i ph\u1ee5c s\u1ef1 r\u00f5 r\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec cho m\u1ed9t h\u1ec7 th\u1ed1ng \u0111ang g\u1eb7p kh\u00f3 kh\u0103n.<\/p>\n

M\u00e3 ngu\u1ed3n c\u0169 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u00e3 c\u0169; \u0111\u00f3 l\u00e0 m\u00e3 kh\u00f3 thay \u0111\u1ed5i m\u00e0 kh\u00f4ng g\u00e2y ra l\u1ed7i. Th\u00e1ch th\u1ee9c kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf vi\u1ec7c vi\u1ebft t\u00ednh n\u0103ng m\u1edbi, m\u00e0 c\u00f2n \u1edf vi\u1ec7c hi\u1ec3u c\u1ea5u tr\u00fac hi\u1ec7n c\u00f3. Vi\u1ec7c tr\u1ef1c quan h\u00f3a t\u1ed5 ch\u1ee9c c\u1ea5p cao c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m gi\u00fap c\u00e1c k\u1ef9 s\u01b0 nh\u00ecn th\u1ea5y b\u1ee9c tranh t\u1ed5ng th\u1ec3 thay v\u00ec b\u1ecb l\u1ea1c trong chi ti\u1ebft. B\u1eb1ng c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c g\u00f3i, ph\u1ee5 thu\u1ed9c v\u00e0 giao di\u1ec7n, c\u00e1c \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m n\u00f3ng v\u1ec1 s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0 l\u00ean k\u1ebf ho\u1ea1ch cho c\u00e1c n\u1ed7 l\u1ef1c t\u00e1i c\u1ea5u tr\u00fac chi\u1ebfn l\u01b0\u1ee3c.<\/p>\n

\n
\"Chibi-style<\/figure>\n<\/div>\n

Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 g\u00f3i \ud83d\udcd0<\/h2>\n

S\u01a1 \u0111\u1ed3 g\u00f3i l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ee7a UML (Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t) d\u00f9ng \u0111\u1ec3 th\u1ec3 hi\u1ec7n t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan v\u00e0o c\u00e1c g\u00f3i, \u0111\u1ea1i di\u1ec7n cho c\u00e1c ranh gi\u1edbi logic. C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u c\u1ea5u tr\u00fac c\u1ea5p cao c\u1ee7a m\u1ed9t \u1ee9ng d\u1ee5ng.<\/p>\n

    \n
  • G\u00f3i:<\/strong> M\u1ed9t kh\u00f4ng gian t\u00ean ch\u1ee9a c\u00e1c l\u1edbp, giao di\u1ec7n ho\u1eb7c c\u00e1c g\u00f3i kh\u00e1c li\u00ean quan. N\u00f3 gi\u00fap qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch nh\u00f3m c\u00e1c ch\u1ee9c n\u0103ng l\u1ea1i v\u1edbi nhau.<\/li>\n
  • Ph\u1ee5 thu\u1ed9c:<\/strong> M\u1ed9t m\u1ed1i quan h\u1ec7 cho th\u1ea5y m\u1ed9t g\u00f3i c\u1ea7n g\u00f3i kh\u00e1c \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng. Trong s\u01a1 \u0111\u1ed3, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n.<\/li>\n
  • S\u1ef1 ph\u1ee5 thu\u1ed9c:<\/strong> M\u1ee9c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c l\u1eabn nhau gi\u1eefa c\u00e1c m\u00f4-\u0111un ph\u1ea7n m\u1ec1m. S\u1ef1 ph\u1ee5 thu\u1ed9c th\u1ea5p l\u00e0 m\u1ee5c ti\u00eau ch\u00ednh trong t\u00e1i c\u1ea5u tr\u00fac.<\/li>\n
  • T\u00ednh g\u1eafn k\u1ebft:<\/strong> M\u1ee9c \u0111\u1ed9 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong m\u1ed9t g\u00f3i c\u00f9ng nhau. T\u00ednh g\u1eafn k\u1ebft cao cho th\u1ea5y tr\u00e1ch nhi\u1ec7m \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng.<\/li>\n<\/ul>\n

    Khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u0169, vi\u1ec7c t\u00e1i t\u1ea1o ng\u01b0\u1ee3c th\u01b0\u1eddng l\u00e0 c\u1ea7n thi\u1ebft. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ph\u00e2n t\u00edch m\u00e3 ngu\u1ed3n hi\u1ec7n c\u00f3 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ea1i di\u1ec7n cho tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i. M\u00f4 h\u00ecnh \u201cHi\u1ec7n t\u1ea1i\u201d n\u00e0y \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng cho b\u1ea5t k\u1ef3 n\u1ed7 l\u1ef1c t\u00e1i c\u1ea5u tr\u00fac n\u00e0o.<\/p>\n

    B\u1ed1i c\u1ea3nh nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: H\u1ec7 th\u1ed1ng h\u00f3a \u0111\u01a1n doanh nghi\u1ec7p \ud83d\udcb0<\/h2>\n

    \u0110\u1ed1i v\u1edbi nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ch\u00fang t\u00f4i xem x\u00e9t m\u1ed9t \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p trung b\u00ecnh mang t\u00ednh h\u01b0 c\u1ea5u \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cH\u1ec7 th\u1ed1ng h\u00f3a \u0111\u01a1n doanh nghi\u1ec7p\u201d. H\u1ec7 th\u1ed1ng n\u00e0y ban \u0111\u1ea7u \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng n\u0103m n\u0103m tr\u01b0\u1edbc \u0111\u1ec3 x\u1eed l\u00fd h\u00f3a \u0111\u01a1n h\u00e0ng th\u00e1ng cho m\u1ed9t d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd. Theo th\u1eddi gian, c\u00e1c t\u00ednh n\u0103ng m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 h\u1ed7 tr\u1ee3 nhi\u1ec1u lo\u1ea1i ti\u1ec1n t\u1ec7, t\u00ednh to\u00e1n thu\u1ebf v\u00e0 t\u00edch h\u1ee3p v\u1edbi b\u00ean th\u1ee9 ba.<\/p>\n

    V\u1ea5n \u0111\u1ec1:<\/strong>T\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n \u0111\u00e3 gi\u1ea3m \u0111\u00e1ng k\u1ec3. Nh\u1eefng thay \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1eadp nh\u1eadt t\u1ef7 l\u1ec7 thu\u1ebf, \u0111\u00f2i h\u1ecfi ph\u1ea3i ch\u1ec9nh s\u1eeda \u1edf nhi\u1ec1u t\u1ec7p kh\u00e1c nhau. L\u1ed7i th\u01b0\u1eddng xuy\u00ean xu\u1ea5t hi\u1ec7n \u1edf c\u00e1c m\u00f4-\u0111un kh\u00f4ng li\u00ean quan. \u0110\u1ed9i ng\u0169 kh\u00f4ng th\u1ec3 t\u1ef1 tin tri\u1ec3n khai t\u00ednh n\u0103ng m\u1edbi m\u00e0 kh\u00f4ng c\u1ea7n ki\u1ec3m th\u1eed h\u1ed3i quy to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n

    M\u1ee5c ti\u00eau:<\/strong> M\u1ee5c ti\u00eau l\u00e0 gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c m\u00f4-\u0111un, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ki\u1ec3m th\u1eed v\u00e0 t\u1ea1o ra m\u1ed9t ki\u1ebfn tr\u00fac c\u00f3 th\u1ec3 chia nh\u1ecf, h\u1ed7 tr\u1ee3 s\u1ef1 ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai m\u00e0 kh\u00f4ng c\u1ea7n vi\u1ebft l\u1ea1i ho\u00e0n to\u00e0n.<\/p>\n

    Giai \u0111o\u1ea1n 1: Ph\u00e1t hi\u1ec7n v\u00e0 ki\u1ec3m k\u00ea \ud83d\udd0d<\/h2>\n

    B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong b\u1ea5t k\u1ef3 n\u1ed7 l\u1ef1c t\u00e1i c\u1ea5u tr\u00fac n\u00e0o l\u00e0 hi\u1ec3u r\u00f5 tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i. Kh\u00f4ng c\u00f3 b\u1ea3n \u0111\u1ed3, vi\u1ec7c \u0111\u1ecbnh h\u01b0\u1edbng l\u00e0 kh\u00f4ng th\u1ec3. \u1ede giai \u0111o\u1ea1n n\u00e0y, \u0111\u1ed9i ng\u0169 t\u1eadp trung v\u00e0o vi\u1ec7c t\u00e1i t\u1ea1o ng\u01b0\u1ee3c c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n \u0111\u1ec3 t\u1ea1o ra s\u01a1 \u0111\u1ed3 g\u00f3i n\u1ec1n t\u1ea3ng.<\/p>\n

    1.1 X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi<\/h3>\n

    \u0110\u1ed9i ng\u0169 b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c kh\u00f4ng gian t\u00ean ho\u1eb7c m\u00f4-\u0111un hi\u1ec7n c\u00f3. H\u1ecd ghi ch\u00e9p l\u1ea1i t\u1eebng t\u1ec7p v\u00e0 th\u01b0 m\u1ee5c \u0111\u1ec3 hi\u1ec3u c\u1ea5u tr\u00fac v\u1eadt l\u00fd. Ki\u1ec3m k\u00ea n\u00e0y cho th\u1ea5y r\u1eb1ng nhi\u1ec1u l\u0129nh v\u1ef1c kinh doanh kh\u00e1c nhau \u0111\u00e3 b\u1ecb tr\u1ed9n l\u1eabn trong c\u00f9ng m\u1ed9t th\u01b0 m\u1ee5c.<\/p>\n

      \n
    • H\u1ea1ch to\u00e1n ch\u00ednh:<\/strong> Ch\u1ee9a logic t\u1ea1o h\u00f3a \u0111\u01a1n v\u00e0 \u0111\u1ecbnh gi\u00e1.<\/li>\n
    • B\u00e1o c\u00e1o:<\/strong> Ch\u1ee9a logic t\u1ea1o t\u1ec7p PDF v\u00e0 xu\u1ea5t d\u1eef li\u1ec7u CSV.<\/li>\n
    • T\u00edch h\u1ee3p:<\/strong> Ch\u1ee9a logic k\u1ebft n\u1ed1i v\u1edbi c\u00e1c c\u1ed5ng thanh to\u00e1n b\u00ean th\u1ee9 ba.<\/li>\n
    • C\u00f4ng c\u1ee5:<\/strong> Ch\u1ee9a c\u00e1c h\u00e0m tr\u1ee3 gi\u00fap chung, b\u1ed9 ph\u00e2n t\u00edch ng\u00e0y th\u00e1ng v\u00e0 b\u1ed9 \u0111\u1ecbnh d\u1ea1ng chu\u1ed7i.<\/li>\n<\/ul>\n

      1.2 B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c<\/h3>\n

      Sau khi x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c th\u00e0nh ph\u1ea7n, \u0111\u1ed9i ng\u0169 \u0111\u00e3 l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. H\u1ecd s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 theo d\u00f5i c\u00e1c c\u00e2u l\u1ec7nh nh\u1eadp v\u00e0 l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c. D\u1eef li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u1ee7 c\u00f4ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n

      B\u1ea3n \u0111\u1ed3 g\u00f3i \u201cHi\u1ec7n tr\u1ea1ng\u201d thu \u0111\u01b0\u1ee3c \u0111\u00e3 ti\u1ebft l\u1ed9 nh\u1eefng v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng:<\/p>\n

        \n
      • G\u00f3i B\u00e1o c\u00e1o<\/strong> g\u00f3i tr\u1ef1c ti\u1ebfp kh\u1edfi t\u1ea1o c\u00e1c l\u1edbp t\u1eeb H\u1ec7 th\u1ed1ng Thanh to\u00e1n ch\u00ednh<\/strong>.<\/li>\n
      • G\u00f3i C\u00f4ng c\u1ee5<\/strong>g\u00f3i ch\u1ee9a logic \u0111\u1eb7c th\u00f9 cho thanh to\u00e1n, vi ph\u1ea1m nguy\u00ean t\u1eafc t\u00e1ch bi\u1ec7t tr\u00e1ch nhi\u1ec7m.<\/li>\n
      • C\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng tr\u00f2n t\u1ed3n t\u1ea1i gi\u1eefa T\u00edch h\u1ee3p<\/strong> v\u00e0 H\u1ec7 th\u1ed1ng Thanh to\u00e1n ch\u00ednh<\/strong>.<\/li>\n<\/ul>\n

        Giai \u0111o\u1ea1n 2: Ph\u00e2n t\u00edch \u0111\u1ed9 li\u00ean k\u1ebft v\u00e0 t\u00ednh g\u1eafn k\u1ebft \ud83e\udde9<\/h2>\n

        Sau khi b\u1ea3n \u0111\u1ed3 ho\u00e0n t\u1ea5t, \u0111\u1ed9i ng\u0169 \u0111\u00e3 ph\u00e2n t\u00edch s\u1ee9c kh\u1ecfe c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng. H\u1ecd t\u00ecm ki\u1ebfm c\u00e1c d\u1ea5u hi\u1ec7u c\u1ee7a \u0111\u1ed9 li\u00ean k\u1ebft cao v\u00e0 t\u00ednh g\u1eafn k\u1ebft th\u1ea5p, \u0111\u00e2y l\u00e0 nh\u1eefng ch\u1ec9 b\u00e1o cho th\u1ea5y n\u1ee3 k\u1ef9 thu\u1eadt.<\/p>\n

        2.1 X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng Th\u1ea7n<\/h3>\n

        M\u1ed9t ‘\u0110\u1ed1i t\u01b0\u1ee3ng Th\u1ea7n’ l\u00e0 m\u1ed9t l\u1edbp ho\u1eb7c module bi\u1ebft qu\u00e1 nhi\u1ec1u ho\u1eb7c l\u00e0m qu\u00e1 nhi\u1ec1u. Trong h\u1ec7 th\u1ed1ng c\u0169, m\u1ed9t l\u1edbp trung t\u00e2m c\u00f3 t\u00ean l\u00e0 Qu\u1ea3n l\u00fd<\/code> ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng, logic thanh to\u00e1n v\u00e0 t\u1ea1o b\u00e1o c\u00e1o. \u0110i\u1ec1u n\u00e0y vi ph\u1ea1m Nguy\u00ean t\u1eafc Tr\u00e1ch nhi\u1ec7m \u0110\u01a1n nh\u1ea5t.<\/p>\n

        2.2 V\u1ea5n \u0111\u1ec1 ph\u1ee5 thu\u1ed9c<\/h3>\n

        \u0110\u1ed9i ng\u0169 \u0111\u00e3 t\u1ea1o ma tr\u1eadn ph\u1ee5 thu\u1ed9c \u0111\u1ec3 tr\u1ef1c quan h\u00f3a lu\u1ed3ng th\u00f4ng tin. M\u1ed9t ma tr\u1eadn c\u00f3 qu\u00e1 nhi\u1ec1u \u00f4 t\u1ed1i cho th\u1ea5y h\u1ec7 th\u1ed1ng m\u00e0 m\u1ecdi th\u1ee9 \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o nhau.<\/p>\n\n\n\n\n\n\n\n
        G\u00f3i A<\/th>\nG\u00f3i B<\/th>\nLo\u1ea1i ph\u1ee5 thu\u1ed9c<\/th>\nT\u00e1c \u0111\u1ed9ng<\/th>\n<\/tr>\n<\/thead>\n
        B\u00e1o c\u00e1o<\/td>\nH\u1ec7 th\u1ed1ng h\u00f3a \u0111\u01a1n ch\u00ednh<\/td>\nNh\u1eadp tr\u1ef1c ti\u1ebfp<\/td>\nR\u1ee7i ro cao: Nh\u1eefng thay \u0111\u1ed5i trong h\u00f3a \u0111\u01a1n s\u1ebd l\u00e0m h\u1ecfng b\u00e1o c\u00e1o.<\/td>\n<\/tr>\n
        C\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3<\/td>\nH\u1ec7 th\u1ed1ng h\u00f3a \u0111\u01a1n ch\u00ednh<\/td>\nNh\u1eadp tr\u1ef1c ti\u1ebfp<\/td>\nR\u1ee7i ro trung b\u00ecnh: V\u1ea5n \u0111\u1ec1 v\u1ec1 tr\u1ea1ng th\u00e1i chung.<\/td>\n<\/tr>\n
        T\u00edch h\u1ee3p<\/td>\nB\u00e1o c\u00e1o<\/td>\nNh\u1eadp gi\u00e1n ti\u1ebfp<\/td>\nR\u1ee7i ro th\u1ea5p: Nh\u01b0ng t\u1ea1o ra s\u1ef1 ph\u1ee5 thu\u1ed9c ch\u1eb7t ch\u1ebd theo th\u1eddi gian.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Ph\u00e2n t\u00edch \u0111\u00e3 x\u00e1c nh\u1eadn r\u1eb1ng B\u00e1o c\u00e1o<\/strong> module qu\u00e1 ph\u1ee5 thu\u1ed9c ch\u1eb7t ch\u1ebd v\u00e0o H\u1ec7 th\u1ed1ng h\u00f3a \u0111\u01a1n ch\u00ednh<\/strong> module. N\u1ebfu logic h\u00f3a \u0111\u01a1n thay \u0111\u1ed5i, \u0111\u1ed9i b\u00e1o c\u00e1o ph\u1ea3i c\u1eadp nh\u1eadt m\u00e3 ngu\u1ed3n ngay l\u1eadp t\u1ee9c. Ch\u1ed7 ngh\u1ebdn n\u00e0y l\u00e0m ch\u1eadm ti\u1ebfn \u0111\u1ed9 ph\u00e1t tri\u1ec3n.<\/p>\n

        Giai \u0111o\u1ea1n 3: L\u00ean k\u1ebf ho\u1ea1ch cho tr\u1ea1ng th\u00e1i m\u1ee5c ti\u00eau \ud83d\uddfa\ufe0f<\/h2>\n

        Refactoring \u0111\u00f2i h\u1ecfi m\u1ed9t m\u1ee5c ti\u00eau r\u00f5 r\u00e0ng. \u0110\u1ed9i ng\u0169 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh ki\u1ebfn tr\u00fac \u201cS\u1ebd c\u00f3\u201d (To-Be). M\u1ee5c ti\u00eau l\u00e0 t\u00e1ch bi\u1ec7t c\u00e1c v\u1ea5n \u0111\u1ec1, \u0111\u1ec3 nh\u1eefng thay \u0111\u1ed5i \u1edf m\u1ed9t khu v\u1ef1c kh\u00f4ng lan sang c\u00e1c khu v\u1ef1c kh\u00e1c.<\/p>\n

        3.1 X\u00e1c \u0111\u1ecbnh giao di\u1ec7n<\/h3>\n

        C\u00e1c giao di\u1ec7n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 h\u1ee3p \u0111\u1ed3ng gi\u1eefa c\u00e1c g\u00f3i. B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c giao di\u1ec7n r\u00f5 r\u00e0ng, c\u00e1c g\u00f3i c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c m\u00e0 kh\u00f4ng c\u1ea7n bi\u1ebft chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9 c\u1ee7a nhau. \u0110\u1ed9i ng\u0169 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c ch\u00ednh:<\/p>\n

          \n
        • D\u1ecbch v\u1ee5 h\u00f3a \u0111\u01a1n:<\/strong> Cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 t\u00ednh to\u00e1n s\u1ed1 ti\u1ec1n v\u00e0 t\u1ea1o h\u00f3a \u0111\u01a1n.<\/li>\n
        • Kho l\u01b0u tr\u1eef h\u00f3a \u0111\u01a1n:<\/strong> X\u1eed l\u00fd vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u cho h\u00f3a \u0111\u01a1n.<\/li>\n
        • D\u1ecbch v\u1ee5 th\u00f4ng b\u00e1o:<\/strong> X\u1eed l\u00fd vi\u1ec7c g\u1eedi email v\u00e0 th\u00f4ng b\u00e1o.<\/li>\n<\/ul>\n

          3.2 V\u1ebd l\u1ea1i s\u01a1 \u0111\u1ed3<\/h3>\n

          S\u1eed d\u1ee5ng c\u00e1c giao di\u1ec7n \u0111\u00e3 x\u00e1c \u0111\u1ecbnh, \u0111\u1ed9i ng\u0169 v\u1ebd l\u1ea1i s\u01a1 \u0111\u1ed3 g\u00f3i m\u1edbi. Nh\u1eefng thay \u0111\u1ed5i ch\u00ednh bao g\u1ed3m:<\/p>\n

            \n
          • T\u00e1ch r\u1eddi b\u00e1o c\u00e1o:<\/strong> G\u00f3i B\u00e1o c\u00e1o s\u1ebd kh\u00f4ng c\u00f2n nh\u1eadp c\u00e1c l\u1edbp Core Billing. Thay v\u00e0o \u0111\u00f3, n\u00f3 s\u1ebd ti\u00eau th\u1ee5 d\u1eef li\u1ec7u th\u00f4ng qua giao di\u1ec7n DTO (\u0110\u1ed1i t\u01b0\u1ee3ng Truy\u1ec1n d\u1eef li\u1ec7u) ch\u1ec9 \u0111\u1ecdc.<\/li>\n
          • T\u1eadp trung h\u00f3a c\u00e1c ti\u1ec7n \u00edch:<\/strong> C\u00e1c h\u00e0m ti\u1ec7n \u00edch \u0111\u1eb7c th\u00f9 cho thanh to\u00e1n \u0111\u00e3 \u0111\u01b0\u1ee3c di chuy\u1ec3n v\u00e0o g\u00f3i Core Billing. Ch\u1ec9 c\u00e1c ti\u1ec7n \u00edch t\u1ed5ng qu\u00e1t c\u00f2n l\u1ea1i trong g\u00f3i Utilities to\u00e0n c\u1ee5c.<\/li>\n
          • Ph\u00e1 v\u1ee1 c\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng:<\/strong> G\u00f3i T\u00edch h\u1ee3p \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00e1i c\u1ea5u tr\u00fac \u0111\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o giao di\u1ec7n Thanh to\u00e1n t\u1ed5ng qu\u00e1t, ch\u1ee9 kh\u00f4ng ph\u1ea3i tri\u1ec3n khai Thanh to\u00e1n c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

            Giai \u0111o\u1ea1n 4: Chi\u1ebfn l\u01b0\u1ee3c Th\u1ef1c hi\u1ec7n \ud83d\udee0\ufe0f<\/h2>\n

            T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 l\u00e0 r\u1ee7i ro. \u0110\u1ed9i ng\u0169 \u0111\u00e3 \u00e1p d\u1ee5ng c\u00e1ch ti\u1ebfp c\u1eadn th\u1eadn tr\u1ecdng, t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3m thi\u1ec3u kh\u1ea3 n\u0103ng l\u00e0m h\u1ecfng ch\u1ee9c n\u0103ng s\u1ea3n xu\u1ea5t.<\/p>\n

            4.1 M\u00f4 h\u00ecnh C\u00e2y B\u1ea1ch \u0111\u00e0n (Strangler Fig Pattern)<\/h3>\n

            \u0110\u1ed9i ng\u0169 \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t m\u1eabu trong \u0111\u00f3 ch\u1ee9c n\u0103ng m\u1edbi \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng trong c\u1ea5u tr\u00fac m\u1edbi, trong khi ch\u1ee9c n\u0103ng c\u0169 \u0111\u01b0\u1ee3c di chuy\u1ec3n d\u1ea7n d\u1ea7n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p h\u1ec7 th\u1ed1ng lu\u00f4n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh t\u1ea1i m\u1ecdi th\u1eddi \u0111i\u1ec3m.<\/p>\n

              \n
            • B\u01b0\u1edbc 1:<\/strong> T\u1ea1o c\u00e1c giao di\u1ec7n m\u1edbi trong c\u00e1c g\u00f3i \u0111\u00edch.<\/li>\n
            • B\u01b0\u1edbc 2:<\/strong> Tri\u1ec3n khai logic m\u1edbi trong c\u00e1c g\u00f3i \u0111\u00edch.<\/li>\n
            • B\u01b0\u1edbc 3:<\/strong> H\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng t\u1eeb m\u00e3 c\u0169 sang m\u00e3 m\u1edbi.<\/li>\n
            • B\u01b0\u1edbc 4:<\/strong> X\u00f3a m\u00e3 c\u0169 sau khi \u0111\u1ed9 bao ph\u1ee7 \u0111\u1ee7.<\/li>\n<\/ul>\n

              4.2 T\u00e1i c\u1ea5u tr\u00fac t\u1eebng b\u01b0\u1edbc<\/h3>\n

              \u0110\u1ed9i ng\u0169 chia nh\u1ecf c\u00f4ng vi\u1ec7c th\u00e0nh c\u00e1c nhi\u1ec7m v\u1ee5 nh\u1ecf, c\u00f3 th\u1ec3 ki\u1ec3m ch\u1ee9ng \u0111\u01b0\u1ee3c. H\u1ecd t\u1eadp trung v\u00e0o m\u1ed9t g\u00f3i t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m. V\u00ed d\u1ee5, h\u1ecd b\u1eaft \u0111\u1ea7u t\u1eeb g\u00f3i Utilities<\/strong> v\u00ec n\u00f3 \u00edt r\u1ee7i ro nh\u1ea5t.<\/p>\n

              C\u00e1c h\u00e0nh \u0111\u1ed9ng \u0111\u00e3 th\u1ef1c hi\u1ec7n:<\/strong><\/p>\n

                \n
              • Tr\u00edch xu\u1ea5t logic \u0111\u1ecbnh d\u1ea1ng ng\u00e0y t\u1eeb g\u00f3i Utilities v\u00e0o g\u00f3i Core Billing.<\/li>\n
              • T\u1ea1o m\u1ed9t giao di\u1ec7n m\u1edbi cho truy xu\u1ea5t d\u1eef li\u1ec7u.<\/li>\n
              • C\u1eadp nh\u1eadt g\u00f3i B\u00e1o c\u00e1o \u0111\u1ec3 s\u1eed d\u1ee5ng giao di\u1ec7n m\u1edbi.<\/li>\n
              • Vi\u1ebft c\u00e1c b\u00e0i ki\u1ec3m th\u1eed \u0111\u01a1n v\u1ecb \u0111\u1ec3 x\u00e1c minh h\u00e0nh vi c\u1ee7a giao di\u1ec7n m\u1edbi.<\/li>\n<\/ul>\n

                Giai \u0111o\u1ea1n 5: X\u00e1c th\u1ef1c v\u00e0 B\u1ea3o tr\u00ec \u2705<\/h2>\n

                Sau khi c\u00e1c thay \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c tri\u1ec3n khai, vi\u1ec7c x\u00e1c th\u1ef1c l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110\u1ed9i ng\u0169 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c nh\u01b0 tr\u01b0\u1edbc, nh\u01b0ng v\u1edbi c\u1ea5u tr\u00fac b\u00ean trong \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n

                5.1 Ki\u1ec3m th\u1eed h\u1ed3i quy<\/h3>\n

                C\u00e1c b\u1ed9 ki\u1ec3m th\u1eed t\u1ef1 \u0111\u1ed9ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ea1y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 ch\u1ee9c n\u0103ng n\u00e0o b\u1ecb m\u1ea5t. \u0110\u1ed9i ng\u0169 \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c tr\u01b0\u1eddng h\u1ee3p bi\u00ean t\u1eebng g\u00e2y l\u1ed7i trong qu\u00e1 kh\u1ee9.<\/p>\n

                5.2 Gi\u00e1m s\u00e1t li\u00ean t\u1ee5c<\/h3>\n

                Ngay c\u1ea3 sau khi t\u00e1i c\u1ea5u tr\u00fac, h\u1ec7 th\u1ed1ng v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t. \u0110\u1ed9i ng\u0169 \u0111\u00e3 thi\u1ebft l\u1eadp c\u00e1c h\u01b0\u1edbng d\u1eabn cho ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 t\u00e1i xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00f9ng c\u00e1c m\u1eabu ch\u1ed1ng l\u1ea1i t\u1ed1t (anti-patterns) n\u00e0y.<\/p>\n

                  \n
                • Quy t\u1eafc ph\u1ee5 thu\u1ed9c:<\/strong>M\u00e3 ngu\u1ed3n m\u1edbi ph\u1ea3i tu\u00e2n th\u1ee7 h\u01b0\u1edbng ph\u1ee5 thu\u1ed9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 g\u00f3i m\u1ee5c ti\u00eau.<\/li>\n
                • Xem x\u00e9t m\u00e3 ngu\u1ed3n:<\/strong>C\u00e1c ki\u1ebfn tr\u00fac s\u01b0 xem x\u00e9t c\u00e1c y\u00eau c\u1ea7u k\u00e9o (pull requests) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c ranh gi\u1edbi g\u00f3i \u0111\u01b0\u1ee3c t\u00f4n tr\u1ecdng.<\/li>\n
                • T\u00e0i li\u1ec7u:<\/strong>C\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt m\u1ed7i khi ki\u1ebfn tr\u00fac thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3.<\/li>\n<\/ul>\n

                  B\u00e0i h\u1ecdc then ch\u1ed1t \u0111\u00e3 h\u1ecdc \u0111\u01b0\u1ee3c \ud83d\udcda<\/h2>\n

                  Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0m n\u1ed5i b\u1eadt m\u1ed9t s\u1ed1 b\u00e0i h\u1ecdc then ch\u1ed1t cho c\u00e1c \u0111\u1ed9i \u0111ang th\u1ef1c hi\u1ec7n c\u00e1c s\u00e1ng ki\u1ebfn t\u00e1i c\u1ea5u tr\u00fac t\u01b0\u01a1ng t\u1ef1.<\/p>\n

                  1. Tr\u1ef1c quan h\u00f3a l\u00e0 thi\u1ebft y\u1ebfu<\/h3>\n

                  B\u1ea1n kh\u00f4ng th\u1ec3 s\u1eeda th\u1ee9 g\u00ec m\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y. C\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u00e3 cung c\u1ea5p t\u1ea7m nh\u00ecn c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u ph\u1ea1m vi c\u1ee7a v\u1ea5n \u0111\u1ec1. Kh\u00f4ng c\u00f3 ch\u00fang, \u0111\u1ed9i ng\u0169 s\u1ebd ph\u1ea3i \u0111o\u00e1n m\u00f2 v\u1ec1 c\u00e1c ph\u1ee5 thu\u1ed9c.<\/p>\n

                  2. Giao di\u1ec7n th\u00fac \u0111\u1ea9y t\u00e1ch r\u1eddi<\/h3>\n

                  Vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c giao di\u1ec7n r\u00f5 r\u00e0ng \u0111\u00e3 cho ph\u00e9p c\u00e1c \u0111\u1ed9i l\u00e0m vi\u1ec7c \u0111\u1ed9c l\u1eadp. \u0110\u1ed9i B\u00e1o c\u00e1o c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c c\u00f4ng vi\u1ec7c c\u1ee7a h\u1ecd ngay khi giao di\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, m\u00e0 kh\u00f4ng c\u1ea7n ch\u1edd \u0111\u1ed9i Thanh to\u00e1n ho\u00e0n th\u00e0nh logic n\u1ed9i b\u1ed9 c\u1ee7a h\u1ecd.<\/p>\n

                  3. Thay \u0111\u1ed5i t\u1eebng b\u01b0\u1edbc s\u1ebd chi\u1ebfn th\u1eafng<\/h3>\n

                  C\u1ed1 g\u1eafng t\u00e1i c\u1ea5u tr\u00fac m\u1ecdi th\u1ee9 c\u00f9ng m\u1ed9t l\u00fac l\u00e0 con \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ebfn th\u1ea5t b\u1ea1i. Nh\u1eefng b\u01b0\u1edbc thay \u0111\u1ed5i nh\u1ecf, \u0111\u01b0\u1ee3c x\u00e1c minh s\u1ebd t\u1ea1o ni\u1ec1m tin v\u00e0 gi\u1ea3m r\u1ee7i ro. M\u00f4 h\u00ecnh C\u00e2y Strangler \u0111\u00e3 cho ph\u00e9p \u0111\u1ed9i di chuy\u1ec3n ch\u1ee9c n\u0103ng m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>\n

                  4. B\u1ea3o tr\u00ec l\u00e0 li\u00ean t\u1ee5c<\/h3>\n

                  T\u00e1i c\u1ea5u tr\u00fac kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n duy nh\u1ea5t. \u0110\u00f3 l\u00e0 m\u1ed9t k\u1ef7 lu\u1eadt. \u0110\u1ed9i ng\u0169 ph\u1ea3i cam k\u1ebft c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 v\u00e0 th\u1ef1c thi c\u00e1c quy t\u1eafc \u0111\u1ec3 ng\u0103n h\u1ec7 th\u1ed1ng suy gi\u1ea3m tr\u1edf l\u1ea1i.<\/p>\n

                  Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh \u26a0\ufe0f<\/h2>\n

                  Ngay c\u1ea3 v\u1edbi m\u1ed9t k\u1ebf ho\u1ea1ch t\u1ed1t, c\u00e1c \u0111\u1ed9i th\u01b0\u1eddng v\u1ea5p ng\u00e3 trong giai \u0111o\u1ea1n th\u1ef1c hi\u1ec7n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n l\u01b0u \u00fd.<\/p>\n

                    \n
                  • Qu\u00e1 m\u1ee9c thi\u1ebft k\u1ebf:<\/strong>T\u1ea1o qu\u00e1 nhi\u1ec1u l\u1edbp tr\u1eebu t\u01b0\u1ee3ng c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n. Gi\u1eef c\u00e1c giao di\u1ec7n \u0111\u01a1n gi\u1ea3n v\u00e0 t\u1eadp trung v\u00e0o nhu c\u1ea7u ngay l\u1eadp t\u1ee9c.<\/li>\n
                  • B\u1ecf qua ki\u1ec3m th\u1eed:<\/strong>Kh\u00f4ng bao gi\u1edd t\u00e1i c\u1ea5u tr\u00fac m\u00e0 kh\u00f4ng c\u00f3 l\u01b0\u1edbi an to\u00e0n. N\u1ebfu b\u1ea1n ch\u01b0a c\u00f3 ki\u1ec3m th\u1eed \u0111\u01a1n v\u1ecb, h\u00e3y vi\u1ebft ch\u00fang tr\u01b0\u1edbc. Ch\u00fang l\u00e0 l\u01b0\u1edbi an to\u00e0n c\u1ee7a b\u1ea1n.<\/li>\n
                  • B\u1ecf qua l\u1ee3i \u00edch kinh doanh:<\/strong>T\u00e1i c\u1ea5u tr\u00fac n\u00ean h\u1ed7 tr\u1ee3 m\u1ee5c ti\u00eau kinh doanh. N\u1ebfu m\u1ed9t l\u1ea7n t\u00e1i c\u1ea5u tr\u00fac kh\u00f4ng c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 ho\u1eb7c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh, th\u00ec c\u00f3 th\u1ec3 n\u00f3 kh\u00f4ng \u0111\u00e1ng \u0111\u1ec3 \u0111\u1ea7u t\u01b0 c\u00f4ng s\u1ee9c.<\/li>\n
                  • S\u01a1 \u0111\u1ed3 l\u1ed7i th\u1eddi:<\/strong>M\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i l\u1ed7i th\u1eddi c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3. N\u00f3 t\u1ea1o ra c\u1ea3m gi\u00e1c an to\u00e0n gi\u1ea3 t\u1ea1o. H\u00e3y gi\u1eef cho c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 v\u1edbi m\u00e3 ngu\u1ed3n.<\/li>\n<\/ul>\n

                    Ch\u1ec9 s\u1ed1 \u0111o l\u01b0\u1eddng th\u00e0nh c\u00f4ng \ud83d\udcca<\/h2>\n

                    L\u00e0m sao b\u1ea1n bi\u1ebft vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac l\u00e0 th\u00e0nh c\u00f4ng? C\u00e1c ch\u1ec9 s\u1ed1 sau \u0111\u00e2y c\u00f3 th\u1ec3 gi\u00fap \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 c\u1ea3i thi\u1ec7n.<\/p>\n\n\n\n\n\n\n\n\n
                    Ch\u1ec9 s\u1ed1<\/th>\nTr\u01b0\u1edbc khi t\u00e1i c\u1ea5u tr\u00fac<\/th>\nSau khi t\u00e1i c\u1ea5u tr\u00fac<\/th>\n<\/tr>\n<\/thead>\n
                    Ch\u1ec9 s\u1ed1\u8026\u5408<\/strong><\/td>\nCao (Nhi\u1ec1u ph\u1ee5 thu\u1ed9c)<\/td>\nTh\u1ea5p (\u00cdt ph\u1ee5 thu\u1ed9c)<\/td>\n<\/tr>\n
                    \u0110\u1ed9 ph\u1ee9c t\u1ea1p v\u00f2ng l\u1eb7p<\/strong><\/td>\nLogic ph\u1ee9c t\u1ea1p trong c\u00e1c t\u1ec7p \u0111\u01a1n l\u1ebb<\/td>\nLogic \u0111\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n h\u00f3a tr\u00ean c\u00e1c module<\/td>\n<\/tr>\n
                    Th\u1eddi gian x\u00e2y d\u1ef1ng<\/strong><\/td>\nCh\u1eadm (Bi\u00ean d\u1ecbch l\u1ea1i to\u00e0n b\u1ed9)<\/td>\nNhanh h\u01a1n (X\u00e2y d\u1ef1ng t\u1eebng ph\u1ea7n)<\/td>\n<\/tr>\n
                    T\u1ef7 l\u1ec7 l\u1ed7i<\/strong><\/td>\nCao<\/td>\nGi\u1ea3m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                    Theo d\u00f5i c\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y theo th\u1eddi gian gi\u00fap minh ch\u1ee9ng gi\u00e1 tr\u1ecb c\u1ee7a c\u00f4ng vi\u1ec7c ki\u1ebfn tr\u00fac \u0111\u1ed1i v\u1edbi c\u00e1c b\u00ean li\u00ean quan.<\/p>\n

                    Nh\u1eefng c\u00e2n nh\u1eafc cu\u1ed1i c\u00f9ng cho ki\u1ebfn tr\u00fac b\u1ec1n v\u1eefng \ud83c\udfd7\ufe0f<\/h2>\n

                    T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 l\u00e0 m\u1ed9t cu\u1ed9c \u0111ua marathon, ch\u1ee9 kh\u00f4ng ph\u1ea3i cu\u1ed9c \u0111ua n\u01b0\u1edbc r\u00fat. N\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u00ean nh\u1eabn, k\u1ef7 lu\u1eadt v\u00e0 t\u1ea7m nh\u00ecn r\u00f5 r\u00e0ng. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 tr\u1ef1c quan h\u00f3a h\u1ec7 th\u1ed1ng, c\u00e1c \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh th\u00f4ng minh v\u1ec1 n\u01a1i n\u00ean \u0111\u1ea7u t\u01b0 n\u1ed7 l\u1ef1c c\u1ee7a m\u00ecnh.<\/p>\n

                    Qu\u00e1 tr\u00ecnh t\u1ea1o s\u01a1 \u0111\u1ed3 th\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n ch\u00ednh s\u01a1 \u0111\u1ed3 \u0111\u00f3. H\u00e0nh \u0111\u1ed9ng b\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c bu\u1ed9c \u0111\u1ed9i ng\u0169 ph\u1ea3i hi\u1ec3u s\u00e2u s\u1eafc h\u1ec7 th\u1ed1ng. S\u1ef1 hi\u1ec3u bi\u1ebft chung n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng cho m\u1ed9t c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n kh\u1ecfe m\u1ea1nh.<\/p>\n

                    H\u00e3y nh\u1edb r\u1eb1ng ki\u1ebfn tr\u00fac kh\u00f4ng ch\u1ec9 v\u1ec1 c\u1ea5u tr\u00fac; n\u00f3 l\u00e0 v\u1ec1 giao ti\u1ebfp. M\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i truy\u1ec1n \u0111\u1ea1t m\u1ee5c \u0111\u00edch thi\u1ebft k\u1ebf \u0111\u1ebfn c\u00e1c th\u00e0nh vi\u00ean m\u1edbi. N\u00f3 gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u00e0m quen v\u00e0 \u0111\u00f3ng g\u00f3p v\u00e0o d\u1ef1 \u00e1n.<\/p>\n

                    Khi b\u1ea1n b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh t\u00e1i c\u1ea5u tr\u00fac c\u1ee7a ri\u00eang m\u00ecnh, h\u00e3y duy tr\u00ec s\u1ef1 t\u1eadp trung v\u00e0o c\u1ea3i ti\u1ebfn t\u1eebng b\u01b0\u1edbc. \u0110\u1eebng nh\u1eafm \u0111\u1ebfn s\u1ef1 ho\u00e0n h\u1ea3o trong l\u1ea7n \u0111\u1ea7u ti\u00ean. H\u00e3y nh\u1eafm \u0111\u1ebfn ti\u1ebfn b\u1ed9. M\u1ed7i s\u1ef1 gi\u1ea3m nh\u1ecf trong \u0111\u1ed9\u8026\u5408 \u0111\u1ec1u l\u00e0 m\u1ed9t chi\u1ebfn th\u1eafng. M\u1ed7i giao di\u1ec7n \u0111\u01b0\u1ee3c th\u00eam v\u00e0o l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn \u0111\u1ebfn m\u1ed9t h\u1ec7 th\u1ed1ng d\u1ec5 b\u1ea3o tr\u00ec h\u01a1n.<\/p>\n

                    B\u1eb1ng c\u00e1ch tu\u00e2n theo nh\u1eefng nguy\u00ean t\u1eafc n\u00e0y v\u00e0 t\u1eadn d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch, b\u1ea1n c\u00f3 th\u1ec3 bi\u1ebfn m\u1ed9t h\u1ec7 th\u1ed1ng c\u0169 h\u1ed7n \u0111\u1ed9n th\u00e0nh m\u1ed9t ki\u1ebfn tr\u00fac v\u1eefng ch\u1eafc, c\u00f3 t\u00ednh module cao. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y \u0111\u1ea3m b\u1ea3o ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n song h\u00e0nh v\u1edbi nhu c\u1ea7u kinh doanh m\u00e0 n\u00f3 ph\u1ee5c v\u1ee5.<\/p>\n","protected":false},"excerpt":{"rendered":"

                    C\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m ph\u00e1t tri\u1ec3n theo th\u1eddi gian. Y\u00eau c\u1ea7u thay \u0111\u1ed5i, \u0111\u1ed9i ng\u0169 m\u1edf r\u1ed9ng v\u00e0 c\u00e1c m\u1ed1c th\u1eddi gian di chuy\u1ec3n. Theo th\u1eddi gian, s\u1ef1 ph\u00e1t…<\/p>\n","protected":false},"author":1,"featured_media":3530,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[74],"tags":[103,110],"class_list":["post-3529","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-package-diagram"],"yoast_head":"\nT\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p\" \/>\n<meta property=\"og:description\" content=\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\" \/>\n<meta property=\"og:site_name\" content=\"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-29T07:30:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"22 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/c083cc17ddd91b7201d38579fe36292d\"},\"headline\":\"Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i\",\"datePublished\":\"2026-03-29T07:30:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\"},\"wordCount\":4425,\"publisher\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg\",\"keywords\":[\"academic\",\"package diagram\"],\"articleSection\":[\"UML\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\",\"url\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\",\"name\":\"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p\",\"isPartOf\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg\",\"datePublished\":\"2026-03-29T07:30:42+00:00\",\"description\":\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage\",\"url\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg\",\"contentUrl\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.go2posts.com\/vi\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#website\",\"url\":\"https:\/\/www.go2posts.com\/vi\/\",\"name\":\"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.go2posts.com\/vi\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#organization\",\"name\":\"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends\",\"url\":\"https:\/\/www.go2posts.com\/vi\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2025\/01\/logo.png\",\"contentUrl\":\"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2025\/01\/logo.png\",\"width\":341,\"height\":46,\"caption\":\"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends\"},\"image\":{\"@id\":\"https:\/\/www.go2posts.com\/vi\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/c083cc17ddd91b7201d38579fe36292d\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.go2posts.com\"],\"url\":\"https:\/\/www.go2posts.com\/vi\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p","description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/","og_locale":"vi_VN","og_type":"article","og_title":"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p","og_description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","og_url":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/","og_site_name":"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends","article_published_time":"2026-03-29T07:30:42+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"vpadmin","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"22 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#article","isPartOf":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/c083cc17ddd91b7201d38579fe36292d"},"headline":"Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i","datePublished":"2026-03-29T07:30:42+00:00","mainEntityOfPage":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/"},"wordCount":4425,"publisher":{"@id":"https:\/\/www.go2posts.com\/vi\/#organization"},"image":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage"},"thumbnailUrl":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg","keywords":["academic","package diagram"],"articleSection":["UML"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/","url":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/","name":"T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i: M\u1ed9t nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p","isPartOf":{"@id":"https:\/\/www.go2posts.com\/vi\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage"},"image":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage"},"thumbnailUrl":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg","datePublished":"2026-03-29T07:30:42+00:00","description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169. M\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 b\u1ea3n \u0111\u1ed3 h\u00f3a ph\u1ee5 thu\u1ed9c, gi\u1ea3m \u0111\u1ed9\u8026\u5408 v\u00e0 c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","breadcrumb":{"@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#primaryimage","url":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg","contentUrl":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2026\/03\/chibi-refactoring-legacy-code-package-diagrams-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.go2posts.com\/vi\/refactoring-legacy-code-using-package-diagrams\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.go2posts.com\/vi\/"},{"@type":"ListItem","position":2,"name":"Nghi\u00ean c\u1ee9u tr\u01b0\u1eddng h\u1ee3p: T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n c\u0169 b\u1eb1ng s\u01a1 \u0111\u1ed3 g\u00f3i"}]},{"@type":"WebSite","@id":"https:\/\/www.go2posts.com\/vi\/#website","url":"https:\/\/www.go2posts.com\/vi\/","name":"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends","description":"","publisher":{"@id":"https:\/\/www.go2posts.com\/vi\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.go2posts.com\/vi\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.go2posts.com\/vi\/#organization","name":"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends","url":"https:\/\/www.go2posts.com\/vi\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.go2posts.com\/vi\/#\/schema\/logo\/image\/","url":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2025\/01\/logo.png","contentUrl":"https:\/\/www.go2posts.com\/vi\/wp-content\/uploads\/sites\/22\/2025\/01\/logo.png","width":341,"height":46,"caption":"Go 2 Posts Vietnamese | Breaking Digital News & Software Trends"},"image":{"@id":"https:\/\/www.go2posts.com\/vi\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/c083cc17ddd91b7201d38579fe36292d","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.go2posts.com\/vi\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.go2posts.com"],"url":"https:\/\/www.go2posts.com\/vi\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/posts\/3529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/comments?post=3529"}],"version-history":[{"count":0,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/posts\/3529\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/media\/3530"}],"wp:attachment":[{"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/media?parent=3529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/categories?post=3529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.go2posts.com\/vi\/wp-json\/wp\/v2\/tags?post=3529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}