{"id":3527,"date":"2026-03-30T08:33:29","date_gmt":"2026-03-30T00:33:29","guid":{"rendered":"https:\/\/www.go2posts.com\/vi\/5-best-practices-package-diagrams-cs-students\/"},"modified":"2026-03-30T08:33:29","modified_gmt":"2026-03-30T00:33:29","slug":"5-best-practices-package-diagrams-cs-students","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/vi\/5-best-practices-package-diagrams-cs-students\/","title":{"rendered":"5 Th\u1ef1c H\u00e0nh T\u1ed1t Nh\u1ea5t M\u1ed7i Sinh Vi\u00ean Khoa H\u1ecdc M\u00e1y T\u00ednh N\u00ean Bi\u1ebft V\u1ec1 S\u01a1 \u0110\u1ed3 G\u00f3i"},"content":{"rendered":"

Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho m\u1ecdi \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd. Khi sinh vi\u00ean khoa h\u1ecdc m\u00e1y t\u00ednh chuy\u1ec3n t\u1eeb vi\u1ec7c vi\u1ebft m\u00e3 sang thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1c bi\u1ec3u di\u1ec5n tr\u1ef1c quan v\u1ec1 c\u1ea5u tr\u00fac \u0111\u00f3 tr\u1edf n\u00ean quan tr\u1ecdng. Trong c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML), s\u01a1 \u0111\u1ed3 g\u00f3i n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 t\u1ed5 ch\u1ee9c c\u00e1c c\u1ea5u tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee9c t\u1ea1p.<\/p>\n

S\u01a1 \u0111\u1ed3 g\u00f3i cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n h\u00ecnh dung c\u1ea5u tr\u00fac c\u1ea5p cao c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0o c\u00e1c h\u1ed9p ch\u1ee9a logic, l\u00e0m r\u00f5 c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c v\u00e0 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c m\u00f4-\u0111un kh\u00e1c nhau. Kh\u00f4ng c\u00f3 c\u00e1i nh\u00ecn ki\u1ebfn tr\u00fac r\u00f5 r\u00e0ng, c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 nhanh ch\u00f3ng tr\u1edf n\u00ean r\u1ed1i r\u1eafm v\u00e0 kh\u00f3 b\u1ea3o tr\u00ec. H\u01b0\u1edbng d\u1eabn n\u00e0y n\u00eau ra n\u0103m th\u1ef1c h\u00e0nh thi\u1ebft y\u1ebfu \u0111\u1ec3 gi\u00fap b\u1ea1n t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i hi\u1ec7u qu\u1ea3, truy\u1ec1n \u0111\u1ea1t r\u00f5 r\u00e0ng \u00fd \u0111\u1ecbnh thi\u1ebft k\u1ebf.<\/p>\n

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

1\ufe0f\u20e3 Nh\u00f3m Logic v\u00e0 T\u00ednh Li\u00ean K\u1ebft \ud83e\udde9<\/h2>\n

M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a m\u1ed9t g\u00f3i l\u00e0 nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan l\u1ea1i v\u1edbi nhau. Khi t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y, m\u1ee5c ti\u00eau l\u00e0 t\u1ed1i \u0111a h\u00f3a t\u00ednh li\u00ean k\u1ebft v\u00e0 t\u1ed1i thi\u1ec3u h\u00f3a s\u1ef1 ph\u1ee5 thu\u1ed9c. T\u00ednh li\u00ean k\u1ebft \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 li\u00ean quan gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong m\u1ed9t g\u00f3i. T\u00ednh li\u00ean k\u1ebft cao c\u00f3 ngh\u0129a l\u00e0 g\u00f3i th\u1ef1c hi\u1ec7n m\u1ed9t vi\u1ec7c r\u1ea5t t\u1ed1t. S\u1ef1 ph\u1ee5 thu\u1ed9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn 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 lu\u00f4n \u0111\u01b0\u1ee3c \u01b0u ti\u00ean.<\/p>\n

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  • Nh\u00f3m theo Ch\u1ee9c n\u0103ng:<\/strong>S\u1eafp x\u1ebfp c\u00e1c g\u00f3i d\u1ef1a tr\u00ean c\u00e1c t\u00ednh n\u0103ng ho\u1eb7c l\u0129nh v\u1ef1c c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, m\u1ed9t UserManagement<\/code>g\u00f3i n\u00ean ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp li\u00ean quan \u0111\u1ebfn x\u00e1c th\u1ef1c, h\u1ed3 s\u01a1 v\u00e0 quy\u1ec1n h\u1ea1n.<\/li>\n
  • T\u00e1ch bi\u1ec7t C\u00e1c V\u1ea5n \u0110\u1ec1:<\/strong>Kh\u00f4ng tr\u1ed9n logic giao di\u1ec7n v\u1edbi logic kinh doanh. Gi\u1eef c\u00e1c th\u00e0nh ph\u1ea7n View<\/code>t\u00e1ch bi\u1ec7t kh\u1ecfi Controller<\/code> ho\u1eb7c Service<\/code>c\u00e1c l\u1edbp.<\/li>\n
  • Tr\u00e1nh C\u00e1c G\u00f3i L\u1edbn:<\/strong>N\u1ebfu m\u1ed9t g\u00f3i ch\u1ee9a c\u00e1c l\u1edbp kh\u00f4ng li\u00ean quan, c\u00f3 kh\u1ea3 n\u0103ng n\u00f3 qu\u00e1 r\u1ed9ng. Chia nh\u1ecf s\u1ebd c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec.<\/li>\n
  • T\u00f4n Tr\u1ecdng Ranh Gi\u1edbi:<\/strong>\u0110\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed9t g\u00f3i kh\u00f4ng ti\u1ebft l\u1ed9 c\u00e1c chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9 c\u1ee7a c\u00e1c g\u00f3i kh\u00e1c m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n

    H\u00e3y xem x\u00e9t t\u00ecnh hu\u1ed1ng sau \u0111\u00e2y khi vi\u1ec7c nh\u00f3m logic th\u1ea5t b\u1ea1i:<\/p>\n

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    • Th\u1ef1c h\u00e0nh X\u1ea5u:<\/strong>M\u1ed9t g\u00f3i c\u00f3 t\u00ean l\u00e0 AllClasses<\/code>ch\u1ee9a k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u, hi\u1ec3n th\u1ecb giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 logic t\u00ednh to\u00e1n.<\/li>\n
    • Th\u1ef1c h\u00e0nh T\u1ed1t:<\/strong>Chia th\u00e0nh DataAccess<\/code>, Th\u00e0nh ph\u1ea7n giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/code>, v\u00e0 Logic kinh doanh<\/code>.<\/li>\n<\/ul>\n

      Khi xem x\u00e9t s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n, h\u00e3y t\u1ef1 h\u1ecfi xem m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c tr\u00e1ch nhi\u1ec7m c\u1ee7a m\u1ed9t g\u00f3i ch\u1ec9 b\u1eb1ng c\u00e1ch nh\u00ecn v\u00e0o t\u00ean c\u1ee7a n\u00f3 hay kh\u00f4ng. N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 kh\u00f4ng, h\u00e3y tinh ch\u1ec9nh chi\u1ebfn l\u01b0\u1ee3c nh\u00f3m.<\/p>\n

      2\ufe0f\u20e3 Qu\u1ea3n l\u00fd ph\u1ee5 thu\u1ed9c m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c \ud83d\udd17<\/h2>\n

      C\u00e1c ph\u1ee5 thu\u1ed9c \u0111\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c g\u00f3i. Ch\u00fang cho th\u1ea5y c\u00e1ch m\u1ed9t g\u00f3i ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i kh\u00e1c. C\u00e1c ph\u1ee5 thu\u1ed9c kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t d\u1eabn \u0111\u1ebfn h\u1ec7 th\u1ed1ng d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng, n\u01a1i m\u1ed9t thay \u0111\u1ed5i trong m\u1ed9t module c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng module kh\u00e1c. Vi\u1ec7c qu\u1ea3n l\u00fd c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

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      • T\u1ed1i thi\u1ec3u h\u00f3a c\u00e1c cu\u1ed9c g\u1ecdi gi\u1eefa c\u00e1c g\u00f3i:<\/strong>C\u00e1c ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp n\u00ean \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u \u0111\u1ebfn m\u1ee9c t\u1ed1i \u0111a. S\u1eed d\u1ee5ng giao di\u1ec7n ho\u1eb7c c\u00e1c l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u1ec3 gi\u1ea3m s\u1ef1 g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd.<\/li>\n
      • Tr\u00e1nh c\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng l\u1eb7p:<\/strong>M\u1ed9t v\u00f2ng l\u1eb7p x\u1ea3y ra khi G\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o G\u00f3i B, v\u00e0 G\u00f3i B ph\u1ee5 thu\u1ed9c v\u00e0o G\u00f3i A. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t tham chi\u1ebfu v\u00f2ng l\u1eb7p r\u1ea5t kh\u00f3 gi\u1ea3i quy\u1ebft v\u00e0 ki\u1ec3m th\u1eed.<\/li>\n
      • D\u00f2ng ch\u1ea3y theo h\u01b0\u1edbng:<\/strong>C\u00e1c ph\u1ee5 thu\u1ed9c n\u00f3i chung n\u00ean ch\u1ea3y t\u1eeb c\u00e1c g\u00f3i c\u1ea5p cao xu\u1ed1ng c\u00e1c g\u00f3i c\u1ea5p th\u1ea5p. Module c\u1ea5p cao \u0111\u1ecbnh ngh\u0129a giao di\u1ec7n, v\u00e0 module c\u1ea5p th\u1ea5p tri\u1ec3n khai n\u00f3.<\/li>\n
      • S\u1eed d\u1ee5ng giao di\u1ec7n:<\/strong>Khi G\u00f3i A c\u1ea7n d\u1eef li\u1ec7u t\u1eeb G\u00f3i B, h\u00e3y \u0111\u1ecbnh ngh\u0129a m\u1ed9t giao di\u1ec7n trong G\u00f3i A m\u00e0 G\u00f3i B tri\u1ec3n khai. \u0110i\u1ec1u n\u00e0y t\u00e1ch bi\u1ec7t vi\u1ec7c tri\u1ec3n khai c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

        Vi\u1ec7c tr\u1ef1c quan h\u00f3a h\u01b0\u1edbng ph\u1ee5 thu\u1ed9c gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng v\u1ec1 ki\u1ebfn tr\u00fac. C\u00e1c m\u0169i t\u00ean ch\u1ec9 theo nhi\u1ec1u h\u01b0\u1edbng th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 thi\u1ebfu v\u1eafng th\u1ee9 b\u1eadc r\u00f5 r\u00e0ng.<\/p>\n

        H\u01b0\u1edbng d\u1eabn v\u1ec1 h\u01b0\u1edbng ph\u1ee5 thu\u1ed9c<\/h3>\n\n\n\n\n\n
        H\u01b0\u1edbng<\/th>\nH\u1ec7 qu\u1ea3<\/th>\nKhuy\u1ebfn ngh\u1ecb<\/th>\n<\/tr>\n
        Cao xu\u1ed1ng th\u1ea5p<\/td>\nTh\u1ee9 b\u1eadc ti\u00eau chu\u1ea9n<\/td>\n\u2705 \u01afa ti\u00ean<\/td>\n<\/tr>\n
        Th\u1ea5p l\u00ean cao<\/td>\nChi ti\u1ebft tri\u1ec3n khai r\u00f2 r\u1ec9 l\u00ean tr\u00ean<\/td>\n\u26a0\ufe0f Xem x\u00e9t l\u1ea1i<\/td>\n<\/tr>\n
        V\u00f2ng l\u1eb7p (A\u2194B)<\/td>\nG\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd, kh\u00f3 ki\u1ec3m th\u1eed<\/td>\n\u274c Tr\u00e1nh<\/td>\n<\/tr>\n<\/table>\n

        3\ufe0f\u20e3 Quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nh\u1ea5t qu\u00e1n \ud83c\udff7\ufe0f<\/h2>\n

        \u0110\u1eb7t t\u00ean l\u00e0 t\u01b0\u01a1ng t\u00e1c \u0111\u1ea7u ti\u00ean m\u00e0 m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 v\u1edbi ki\u1ebfn tr\u00fac c\u1ee7a b\u1ea1n. Vi\u1ec7c \u0111\u1eb7t t\u00ean kh\u00f4ng nh\u1ea5t qu\u00e1n d\u1eabn \u0111\u1ebfn s\u1ef1 nh\u1ea7m l\u1eabn v\u00e0 l\u00e0m t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng nh\u1eadn th\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u h\u1ec7 th\u1ed1ng. M\u1ed9t quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean chu\u1ea9n h\u00f3a \u0111\u1ea3m b\u1ea3o s\u1ef1 r\u00f5 r\u00e0ng tr\u00ean to\u00e0n b\u1ed9 d\u1ef1 \u00e1n.<\/p>\n

          \n
        • S\u1eed d\u1ee5ng Danh t\u1eeb:<\/strong>T\u00ean g\u00f3i n\u00ean n\u00f3i chung l\u00e0 danh t\u1eeb ho\u1eb7c c\u1ee5m danh t\u1eeb. Tr\u00e1nh d\u00f9ng \u0111\u1ed9ng t\u1eeb.X\u1eedL\u00fd\u0110\u01a1nH\u00e0ng<\/code> t\u1ed1t h\u01a1n l\u00e0X\u1eedL\u00fd\u0110\u01a1nH\u00e0ng<\/code>.<\/li>\n
        • Vi\u1ebft hoa \u0111\u00fang c\u00e1ch:<\/strong> S\u1eed d\u1ee5ng camelCase ho\u1eb7c PascalCase m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. Kh\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed9n l\u1eabnmyPackage<\/code> v\u00e0 MyPackage<\/code> trong c\u00f9ng m\u1ed9t s\u01a1 \u0111\u1ed3.<\/li>\n
        • Gi\u1eef ng\u1eafn g\u1ecdn:<\/strong> T\u00ean d\u00e0i kh\u00f3 \u0111\u1ecdc tr\u00ean s\u01a1 \u0111\u1ed3. Vi\u1ebft t\u1eaft c\u00e1c thu\u1eadt ng\u1eef ph\u1ed5 bi\u1ebfn n\u1ebfu c\u1ea7n, nh\u01b0ng \u0111\u1ea3m b\u1ea3o ch\u00fang \u0111\u01b0\u1ee3c ghi ch\u00fa r\u00f5 r\u00e0ng.<\/li>\n
        • Ph\u1ea3n \u00e1nh c\u1ea5u tr\u00fac:<\/strong> T\u00ean n\u00ean g\u1ee3i \u00fd v\u1ec1 c\u1ea5u tr\u00fac b\u00ean trong.Core<\/code> ng\u1ee5 \u00fd ch\u1ee9c n\u0103ng trung t\u00e2m, trong khi External<\/code> ng\u1ee5 \u00fd t\u00edch h\u1ee3p v\u1edbi b\u00ean th\u1ee9 ba.<\/li>\n<\/ul>\n

          \u00c1p d\u1ee5ng m\u1ed9t ti\u00eau chu\u1ea9n chung cho to\u00e0n d\u1ef1 \u00e1n gi\u00fap vi\u1ec7c \u0111\u01b0a ng\u01b0\u1eddi m\u1edbi v\u00e0o l\u00e0m quen nhanh h\u01a1n. Khi m\u1ecdi ng\u01b0\u1eddi tu\u00e2n theo c\u00f9ng m\u1ed9t quy t\u1eafc, s\u01a1 \u0111\u1ed3 s\u1ebd tr\u1edf th\u00e0nh b\u1ea3n \u0111\u1ed3 \u0111\u00e1ng tin c\u1eady cho c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n.<\/p>\n

          4\ufe0f\u20e3 M\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng v\u00e0 qu\u1ea3n l\u00fd chi ti\u1ebft \ud83c\udf9a\ufe0f<\/h2>\n

          S\u01a1 \u0111\u1ed3 g\u00f3i th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng kh\u00e1c nhau. M\u1ed9t s\u01a1 \u0111\u1ed3 duy nh\u1ea5t hi\u1ebfm khi hi\u1ec3n th\u1ecb t\u1eebng l\u1edbp c\u1ee5 th\u1ec3 trong m\u1ed9t h\u1ec7 th\u1ed1ng l\u1edbn. Vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c khi n\u00e0o n\u00ean ph\u00f3ng to v\u00e0 khi n\u00e0o n\u00ean thu nh\u1ecf l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng ri\u00eang bi\u1ec7t.<\/p>\n

            \n
          • M\u1ee9c h\u1ec7 th\u1ed1ng:<\/strong> Hi\u1ec3n th\u1ecb c\u00e1c h\u1ec7 th\u1ed1ng con ch\u00ednh. T\u1eadp trung v\u00e0o c\u00e1ch c\u01a1 s\u1edf d\u1eef li\u1ec7u, API v\u00e0 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. Kh\u00f4ng hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp ri\u00eang l\u1ebb \u1edf \u0111\u00e2y.<\/li>\n
          • M\u1ee9c h\u1ec7 th\u1ed1ng con:<\/strong> \u0110i s\u00e2u v\u00e0o c\u00e1c m\u00f4-\u0111un c\u1ee5 th\u1ec3. Hi\u1ec3n th\u1ecb c\u00e1c g\u00f3i b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng con v\u00e0 c\u00e1c ph\u1ee5 thu\u1ed9c n\u1ed9i b\u1ed9 c\u1ee7a ch\u00fang.<\/li>\n
          • M\u1ee9c tri\u1ec3n khai:<\/strong> \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang cho s\u01a1 \u0111\u1ed3 l\u1edbp. S\u01a1 \u0111\u1ed3 g\u00f3i \u1edf m\u1ee9c n\u00e0y tr\u1edf n\u00ean l\u1ed9n x\u1ed9n v\u00e0 m\u1ea5t \u0111i gi\u00e1 tr\u1ecb t\u1ed5ng quan c\u1ea5p cao.<\/li>\n
          • \u1ea8n chi ti\u1ebft b\u00ean trong:<\/strong> S\u1eed d\u1ee5ng \u00abinclude\u00bb<\/code> ho\u1eb7c \u00abuse\u00bb<\/code> ki\u1ec3u h\u00ecnh \u0111\u1ec3 ch\u1ec9 ra r\u1eb1ng m\u1ed9t g\u00f3i s\u1eed d\u1ee5ng m\u1ed9t g\u00f3i kh\u00e1c, m\u00e0 kh\u00f4ng hi\u1ec3n th\u1ecb c\u01a1 ch\u1ebf b\u00ean trong.<\/li>\n<\/ul>\n

            Qu\u00e1 chi ti\u1ebft h\u00f3a s\u01a1 \u0111\u1ed3 g\u00f3i khi\u1ebfn n\u00f3 tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. N\u1ebfu b\u1ea1n th\u1ea5y m\u00ecnh \u0111ang li\u1ec7t k\u00ea h\u00e0ng ch\u1ee5c l\u1edbp b\u00ean trong m\u1ed9t g\u00f3i, h\u00e3y c\u00e2n nh\u1eafc di chuy\u1ec3n chi ti\u1ebft \u0111\u00f3 sang s\u01a1 \u0111\u1ed3 l\u1edbp ri\u00eang bi\u1ec7t ho\u1eb7c t\u1ec7p t\u00e0i li\u1ec7u. S\u01a1 \u0111\u1ed3 g\u00f3i n\u00ean \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ee5c l\u1ee5c cho ki\u1ebfn tr\u00fac.<\/p>\n

            5\ufe0f\u20e3 T\u00e0i li\u1ec7u v\u00e0 B\u1ea3o tr\u00ec \ud83d\udcdd<\/h2>\n

            M\u1ed9t s\u01a1 \u0111\u1ed3 ch\u1ec9 th\u1ef1c s\u1ef1 h\u1eefu \u00edch n\u1ebfu n\u00f3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c theo th\u1eddi gian. Ph\u1ea7n m\u1ec1m ph\u00e1t tri\u1ec3n, v\u00e0 m\u00e3 ngu\u1ed3n thay \u0111\u1ed5i. N\u1ebfu s\u01a1 \u0111\u1ed3 kh\u00f4ng thay \u0111\u1ed5i theo m\u00e3 ngu\u1ed3n, n\u00f3 s\u1ebd tr\u1edf th\u00e0nh ngu\u1ed3n th\u00f4ng tin sai l\u1ec7ch. Vi\u1ec7c duy tr\u00ec t\u00e0i li\u1ec7u quan tr\u1ecdng ngang b\u1eb1ng vi\u1ec7c t\u1ea1o ra n\u00f3.<\/p>\n

              \n
            • C\u1eadp nh\u1eadt theo thay \u0111\u1ed5i:<\/strong> M\u1ed7i khi th\u00eam m\u1ed9t m\u00f4-\u0111un m\u1edbi ho\u1eb7c lo\u1ea1i b\u1ecf m\u1ed9t ph\u1ee5 thu\u1ed9c, h\u00e3y c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3. \u0110\u1eebng \u0111\u1ec3 n\u00f3 l\u1ec7ch l\u1ea1c.<\/li>\n
            • Bao g\u1ed3m d\u1eef li\u1ec7u m\u00f4 t\u1ea3:<\/strong> Th\u00eam s\u1ed1 phi\u00ean b\u1ea3n v\u00e0 ng\u00e0y th\u00e1ng v\u00e0o ti\u00eau \u0111\u1ec1 ho\u1eb7c ch\u00e2n trang s\u01a1 \u0111\u1ed3. \u0110i\u1ec1u n\u00e0y gi\u00fap theo d\u00f5i c\u00e1c thay \u0111\u1ed5i l\u1ecbch s\u1eed.<\/li>\n
            • X\u00e1c \u0111\u1ecbnh ki\u1ec3u h\u00ecnh:<\/strong> S\u1eed d\u1ee5ng c\u00e1c ki\u1ec3u h\u00ecnh UML chu\u1ea9n nh\u01b0 \u00abinterface\u00bb<\/code>, \u00ababstract\u00bb<\/code>, ho\u1eb7c \u00abutility\u00bb<\/code> \u0111\u1ec3 l\u00e0m r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a c\u00e1c g\u00f3i.<\/li>\n
            • Xem x\u00e9t \u0111\u1ecbnh k\u1ef3:<\/strong> L\u00ean l\u1ecbch xem x\u00e9t \u0111\u1ecbnh k\u1ef3 v\u1edbi \u0111\u1ed3ng nghi\u1ec7p. M\u1ed9t c\u1eb7p m\u1eaft m\u1edbi c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea5u tr\u00fac m\u00e0 ng\u01b0\u1eddi thi\u1ebft k\u1ebf ban \u0111\u1ea7u \u0111\u00e3 b\u1ecf s\u00f3t.<\/li>\n<\/ul>\n

              Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh \ud83d\udeab<\/h2>\n

              Ngay c\u1ea3 c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m khi thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 g\u00f3i. Nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian \u0111\u00e1ng k\u1ec3 trong giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n.<\/p>\n

                \n
              • Tr\u00e1ch nhi\u1ec7m ch\u1ed3ng ch\u00e9o:<\/strong> \u0110\u1ea3m b\u1ea3o r\u1eb1ng hai g\u00f3i kh\u00f4ng th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t ch\u1ee9c n\u0103ng ch\u00ednh x\u00e1c. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u00e3 ngu\u1ed3n tr\u00f9ng l\u1eb7p.<\/li>\n
              • B\u1ecf qua t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a g\u00f3i:<\/strong> H\u00e3y nh\u1edb r\u1eb1ng c\u00e1c g\u00f3i c\u00f3 c\u00e1c b\u1ed9 ch\u1ecdn truy c\u1eadp. C\u00e1c g\u00f3i c\u00f4ng khai c\u00f3 th\u1ec3 truy c\u1eadp tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, trong khi c\u00e1c g\u00f3i ri\u00eang t\u01b0 b\u1ecb gi\u1edbi h\u1ea1n.<\/li>\n
              • B\u1ecf qua c\u00e1c ph\u1ee5 thu\u1ed9c:<\/strong> Kh\u00f4ng n\u00ean gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng c\u00e1c m\u1ed1i quan h\u1ec7 t\u1ed3n t\u1ea1i. N\u1ebfu Package A s\u1eed d\u1ee5ng Package B, h\u00e3y v\u1ebd m\u0169i t\u00ean m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.<\/li>\n
              • B\u1ecf qua t\u1ea7ng l\u1edbp:<\/strong>\u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c t\u1ea7ng (Giao di\u1ec7n, Kinh doanh, D\u1eef li\u1ec7u) kh\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed9n l\u1eabn. M\u1ed9t package giao di\u1ec7n kh\u00f4ng n\u00ean giao ti\u1ebfp tr\u1ef1c ti\u1ebfp v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n

                T\u1ea1i sao nh\u1eefng th\u1ef1c h\u00e0nh n\u00e0y quan tr\u1ecdng \ud83c\udf1f<\/h2>\n

                Ch\u1ea5p h\u00e0nh c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 tu\u00e2n theo quy t\u1eafc. \u0110\u00f3 l\u00e0 c\u00e1ch gi\u1ea3m thi\u1ec3u n\u1ee3 k\u1ef9 thu\u1eadt. M\u1ed9t s\u01a1 \u0111\u1ed3 package \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac t\u1ed1t gi\u00fap m\u00e3 ngu\u1ed3n d\u1ec5 \u0111\u1ecdc h\u01a1n, d\u1ec5 ki\u1ec3m th\u1eed h\u01a1n v\u00e0 d\u1ec5 t\u00e1i c\u1ea5u tr\u00fac h\u01a1n. N\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 giao ti\u1ebfp gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, c\u00e1c b\u00ean li\u00ean quan v\u00e0 nh\u1eefng ng\u01b0\u1eddi b\u1ea3o tr\u00ec trong t\u01b0\u01a1ng lai.<\/p>\n

                Trong m\u00f4i tr\u01b0\u1eddng h\u1ecdc thu\u1eadt, c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ea5m \u0111i\u1ec3m d\u1ef1a tr\u00ean \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n UML. Trong m\u00f4i tr\u01b0\u1eddng chuy\u00ean nghi\u1ec7p, ch\u00fang l\u00e0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf cho vi\u1ec7c m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng. D\u00f9 b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t d\u1ef1 \u00e1n nh\u1ecf cho m\u00f4n h\u1ecdc hay m\u1ed9t h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p quy m\u00f4 l\u1edbn, c\u00e1c nguy\u00ean t\u1eafc v\u1ec1 t\u1ed5 ch\u1ee9c, qu\u1ea3n l\u00fd ph\u1ee5 thu\u1ed9c v\u00e0 s\u1ef1 r\u00f5 r\u00e0ng v\u1eabn lu\u00f4n \u0111\u01b0\u1ee3c duy tr\u00ec.<\/p>\n

                B\u1eaft \u0111\u1ea7u \u00e1p d\u1ee5ng nh\u1eefng th\u1ef1c h\u00e0nh n\u00e0y v\u00e0o c\u00e1c d\u1ef1 \u00e1n hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n. V\u1ebd ph\u00e1c th\u1ea3o ki\u1ebfn tr\u00fac c\u1ee7a b\u1ea1n tr\u00ean gi\u1ea5y tr\u01b0\u1edbc khi l\u1eadp tr\u00ecnh. Tinh ch\u1ec9nh c\u00e1c package d\u1ef1a tr\u00ean logic c\u1ee7a l\u0129nh v\u1ef1c. Theo th\u1eddi gian, b\u1ea1n s\u1ebd nh\u1eadn th\u1ea5y m\u00e3 ngu\u1ed3n tr\u1edf n\u00ean linh ho\u1ea1t v\u00e0 v\u1eefng ch\u1eafc h\u01a1n v\u00ec thi\u1ebft k\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ch\u1eafc ch\u1eafn t\u1eeb \u0111\u1ea7u.<\/p>\n

                Suy ngh\u0129 cu\u1ed1i c\u00f9ng \ud83c\udf93<\/h2>\n

                S\u01a1 \u0111\u1ed3 package l\u00e0 k\u1ef9 n\u0103ng n\u1ec1n t\u1ea3ng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 sinh vi\u00ean ng\u00e0nh khoa h\u1ecdc m\u00e1y t\u00ednh n\u00e0o mong mu\u1ed1n tr\u1edf th\u00e0nh ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m. Ch\u00fang t\u1ea1o n\u00ean c\u1ea7u n\u1ed1i gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 vi\u1ec7c tri\u1ec3n khai m\u00e3 ngu\u1ed3n c\u1ee5 th\u1ec3. B\u1eb1ng c\u00e1ch t\u1eadp trung v\u00e0o nh\u00f3m logic, qu\u1ea3n l\u00fd ph\u1ee5 thu\u1ed9c, quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean, m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng v\u00e0 b\u1ea3o tr\u00ec, b\u1ea1n s\u1ebd t\u1ea1o ra nh\u1eefng h\u1ec7 th\u1ed1ng v\u01b0\u1ee3t qua th\u1eed th\u00e1ch c\u1ee7a th\u1eddi gian.<\/p>\n

                H\u00e3y nh\u1edb r\u1eb1ng m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng. N\u00f3 thay \u0111\u1ed5i theo s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ec7 th\u1ed1ng. H\u00e3y gi\u1eef cho n\u00f3 s\u1ea1ch s\u1ebd, ch\u00ednh x\u00e1c v\u00e0 h\u1eefu \u00edch. Nh\u1eefng th\u00f3i quen n\u00e0y s\u1ebd h\u1ed7 tr\u1ee3 b\u1ea1n r\u1ea5t nhi\u1ec1u trong su\u1ed1t s\u1ef1 nghi\u1ec7p ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m.<\/p>\n","protected":false},"excerpt":{"rendered":"

                Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho m\u1ecdi \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd. Khi sinh vi\u00ean khoa h\u1ecdc m\u00e1y t\u00ednh chuy\u1ec3n t\u1eeb vi\u1ec7c vi\u1ebft m\u00e3 sang thi\u1ebft k\u1ebf h\u1ec7…<\/p>\n","protected":false},"author":1,"featured_media":3528,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"5 Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho s\u01a1 \u0111\u1ed3 package UML (H\u01b0\u1edbng d\u1eabn ng\u00e0nh CS)","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c thi\u1ebft y\u1ebfu cho s\u01a1 \u0111\u1ed3 package UML. 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