{"id":1872,"date":"2026-04-11T09:40:41","date_gmt":"2026-04-11T09:40:41","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/uml-package-diagrams-complete-guide\/"},"modified":"2026-04-11T09:40:41","modified_gmt":"2026-04-11T09:40:41","slug":"uml-package-diagrams-complete-guide","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/uml-package-diagrams-complete-guide\/","title":{"rendered":"T\u1ed5ng quan to\u00e0n di\u1ec7n: T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 s\u01a1 \u0111\u1ed3 g\u00f3i UML"},"content":{"rendered":"

Trong th\u1ebf gi\u1edbi ph\u1ee9c t\u1ea1p c\u1ee7a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111\u1ed3ng ti\u1ec1n c\u1ee7a th\u00e0nh c\u00f4ng. Khi c\u00e1c h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p, vi\u1ec7c qu\u1ea3n l\u00fd t\u1ed5 ch\u1ee9c m\u00e3 ngu\u1ed3n tr\u1edf th\u00e0nh m\u1ed9t th\u00e1ch th\u1ee9c then ch\u1ed1t. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac S\u01a1 \u0111\u1ed3 g\u00f3i UML<\/strong>ph\u1ee5c v\u1ee5 nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n. N\u00f3 cung c\u1ea5p c\u00e1i nh\u00ecn c\u1ea5p cao v\u1ec1 c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng, s\u1eafp x\u1ebfp c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0o c\u00e1c nh\u00f3m logic \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u00f3i. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 v\u1ec1 c\u01a1 ch\u1ebf, l\u1ee3i \u00edch v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t \u0111\u1ec3 thi\u1ebft k\u1ebf c\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng c\u1ee5 c\u1ee5 th\u1ec3.<\/p>\n

\n
\"Hand-drawn<\/figure>\n<\/div>\n

\ud83e\udd14 S\u01a1 \u0111\u1ed3 g\u00f3i UML l\u00e0 g\u00ec?<\/h2>\n

S\u01a1 \u0111\u1ed3 g\u00f3i UML l\u00e0 m\u1ed9t lo\u1ea1i s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac trong Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML). M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 th\u1ec3 hi\u1ec7n c\u00e1ch t\u1ed5 ch\u1ee9c h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c nh\u00f3m logic. H\u00e3y h\u00ecnh dung n\u00f3 nh\u01b0 m\u1ed9t b\u1ea3n \u0111\u1ed3 c\u1ee7a c\u00e1c th\u01b0 m\u1ee5c v\u00e0 th\u01b0 m\u1ee5c con, nh\u01b0ng d\u00e0nh cho c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m. N\u00f3 cho ph\u00e9p c\u00e1c nh\u00f3m h\u00ecnh dung c\u00e1ch c\u00e1c ph\u1ea7n kh\u00e1c nhau c\u1ee7a h\u1ec7 th\u1ed1ng t\u01b0\u01a1ng t\u00e1c \u1edf c\u1ea5p \u0111\u1ed9 v\u0129 m\u00f4.<\/p>\n

Kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 L\u1edbp, t\u1eadp trung v\u00e0o t\u1eebng l\u1edbp ri\u00eang l\u1ebb v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang, s\u01a1 \u0111\u1ed3 G\u00f3i t\u00e1ch r\u1eddi c\u00e1c chi ti\u1ebft. N\u00f3 t\u1eadp trung v\u00e0o c\u00e1c ranh gi\u1edbi gi\u1eefa c\u00e1c module ch\u00ednh. S\u1ef1 tr\u1eebu t\u01b0\u1ee3ng n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn, n\u01a1i hi\u1ec3u to\u00e0n b\u1ed9 c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n c\u00f9ng m\u1ed9t l\u00fac l\u00e0 kh\u00f4ng th\u1ec3.<\/p>\n

M\u1ee5c ti\u00eau ch\u00ednh<\/h3>\n
    \n
  • T\u00ednh module:<\/strong>Chia nh\u1ecf c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p th\u00e0nh c\u00e1c \u0111\u01a1n v\u1ecb c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd.<\/li>\n
  • Qu\u1ea3n l\u00fd ph\u1ee5 thu\u1ed9c:<\/strong>Tr\u1ef1c quan h\u00f3a c\u00e1ch c\u00e1c module ph\u1ee5 thu\u1ed9c v\u00e0o nhau.<\/li>\n
  • T\u1ed5 ch\u1ee9c kh\u00f4ng gian t\u00ean:<\/strong>X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi cho c\u00e1c \u0111\u1ecbnh danh \u0111\u1ec3 ng\u0103n ch\u1eb7n xung \u0111\u1ed9t.<\/li>\n
  • Giao ti\u1ebfp:<\/strong>Cung c\u1ea5p m\u1ed9t ng\u00f4n ng\u1eef chung \u0111\u1ec3 c\u00e1c b\u00ean li\u00ean quan th\u1ea3o lu\u1eadn v\u1ec1 ki\u1ebfn tr\u00fac.<\/li>\n<\/ul>\n

    \ud83e\udde9 C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a s\u01a1 \u0111\u1ed3 g\u00f3i<\/h2>\n

    \u0110\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t s\u01a1 \u0111\u1ed3 c\u00f3 \u00fd ngh\u0129a, ng\u01b0\u1eddi ta ph\u1ea3i hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng. Nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y t\u1ea1o n\u00ean t\u1eeb v\u1ef1ng c\u1ee7a m\u00f4 h\u00ecnh h\u00f3a g\u00f3i.<\/p>\n

    1. G\u00f3i<\/h3>\n

    M\u1ed9t g\u00f3i l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf \u0111\u1ec3 t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n th\u00e0nh c\u00e1c nh\u00f3m. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t kh\u00f4ng gian t\u00ean. Trong bi\u1ec3u di\u1ec5n h\u00ecnh \u1ea3nh, c\u00e1c g\u00f3i th\u01b0\u1eddng \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng h\u00ecnh ch\u1eef nh\u1eadt l\u1edbn v\u1edbi m\u1ed9t tab \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i.<\/p>\n

      \n
    • G\u00f3i g\u1ed1c:<\/strong>Th\u00f9ng ch\u1ee9a c\u1ea5p cao nh\u1ea5t cho to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/li>\n
    • G\u00f3i con:<\/strong>C\u00e1c g\u00f3i \u0111\u01b0\u1ee3c ch\u1ee9a b\u00ean trong c\u00e1c g\u00f3i kh\u00e1c \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p.<\/li>\n
    • G\u00f3i l\u00e1:<\/strong>C\u00e1c g\u00f3i kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 g\u00f3i n\u00e0o kh\u00e1c, th\u01b0\u1eddng ch\u1ee9a c\u00e1c l\u1edbp ho\u1eb7c giao di\u1ec7n.<\/li>\n<\/ul>\n

      2. N\u00fat v\u00e0 Giao di\u1ec7n<\/h3>\n

      Trong khi c\u00e1c g\u00f3i l\u00e0 c\u00e1c th\u00f9ng ch\u1ee9a, ch\u00fang t\u01b0\u01a1ng t\u00e1c th\u00f4ng qua c\u00e1c ranh gi\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n

        \n
      • Giao di\u1ec7n:<\/strong>X\u00e1c \u0111\u1ecbnh h\u1ee3p \u0111\u1ed3ng m\u00e0 m\u1ed9t g\u00f3i c\u00f4ng khai v\u1edbi c\u00e1c b\u00ean kh\u00e1c. Ch\u00fang x\u00e1c \u0111\u1ecbnh nh\u1eefng thao t\u00e1c n\u00e0o c\u00f3 s\u1eb5n m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9 c\u00e1ch tri\u1ec3n khai b\u00ean trong.<\/li>\n
      • N\u00fat:<\/strong> \u0110\u1ea1i di\u1ec7n cho c\u00e1c t\u00e0i nguy\u00ean t\u00ednh to\u00e1n v\u1eadt l\u00fd ho\u1eb7c logic n\u01a1i c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c tri\u1ec3n khai. M\u1eb7c d\u00f9 ph\u1ed5 bi\u1ebfn h\u01a1n trong s\u01a1 \u0111\u1ed3 tri\u1ec3n khai, ch\u00fang c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n trong s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 ch\u1ec9 ra n\u01a1i m\u1ed9t g\u00f3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef.<\/li>\n<\/ul>\n

        3. C\u00e1c ki\u1ec3u d\u00e1ng<\/h3>\n

        C\u00e1c ki\u1ec3u d\u00e1ng m\u1edf r\u1ed9ng k\u00fd hi\u1ec7u \u0111\u1ec3 cung c\u1ea5p \u00fd ngh\u0129a c\u1ee5 th\u1ec3. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c vi\u1ebft trong d\u1ea5u guillemets (<< >>). C\u00e1c ki\u1ec3u d\u00e1ng ph\u1ed5 bi\u1ebfn trong m\u00f4 h\u00ecnh h\u00f3a g\u00f3i bao g\u1ed3m:<\/p>\n

          \n
        • <<kh\u00f4ng gian t\u00ean>><\/strong>: Ch\u1ec9 ra m\u1ed9t nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n.<\/li>\n
        • <<h\u1ec7 th\u1ed1ng con>><\/strong>: M\u1ed9t g\u00f3i \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u00e0nh ph\u1ea7n ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n
        • <<khung n\u1ec1n>><\/strong>: M\u1ed9t thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng v\u1edbi m\u1ed9t t\u1eadp h\u1ee3p tr\u00e1ch nhi\u1ec7m c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

          \ud83d\udd17 Hi\u1ec3u r\u00f5 c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 ph\u1ee5 thu\u1ed9c<\/h2>\n

          S\u1ee9c m\u1ea1nh th\u1ef1c s\u1ef1 c\u1ee7a s\u01a1 \u0111\u1ed3 g\u00f3i n\u1eb1m \u1edf c\u00e1ch c\u00e1c g\u00f3i t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. C\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y x\u00e1c \u0111\u1ecbnh lu\u1ed3ng th\u00f4ng tin v\u00e0 \u0111i\u1ec1u khi\u1ec3n. Vi\u1ec7c qu\u1ea3n l\u00fd sai c\u00e1c li\u00ean k\u1ebft n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng.<\/p>\n

          C\u00e1c lo\u1ea1i m\u1ed1i quan h\u1ec7<\/h3>\n

          UML \u0111\u1ecbnh ngh\u0129a b\u1ed1n lo\u1ea1i m\u1ed1i quan h\u1ec7 ch\u00ednh gi\u1eefa c\u00e1c g\u00f3i. Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a ch\u00ednh x\u00e1c.<\/p>\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>\nTr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
          Ph\u1ee5 thu\u1ed9c<\/td>\nM\u0169i t\u00ean g\u1ea1ch n\u1ed1i v\u1edbi \u0111\u1ea7u m\u1edf<\/td>\nM\u1ed9t g\u00f3i s\u1eed d\u1ee5ng g\u00f3i kh\u00e1c \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng.<\/td>\nM\u1ed9t g\u00f3i ti\u1ec7n \u00edch \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1edfi g\u00f3i logic kinh doanh.<\/td>\n<\/tr>\n
          Li\u00ean k\u1ebft<\/td>\n\u0110\u01b0\u1eddng li\u1ec1n<\/td>\nK\u1ebft n\u1ed1i c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c th\u1ec3 hi\u1ec7n.<\/td>\nHai g\u00f3i c\u00f3 m\u1ed1i li\u00ean k\u1ebft c\u1ea5u tr\u00fac d\u00e0i h\u1ea1n.<\/td>\n<\/tr>\n
          T\u1ed5ng qu\u00e1t h\u00f3a<\/td>\n\u0110\u01b0\u1eddng li\u1ec1n v\u1edbi tam gi\u00e1c r\u1ed7ng<\/td>\nM\u1ed9t g\u00f3i l\u00e0 phi\u00ean b\u1ea3n chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a g\u00f3i kh\u00e1c.<\/td>\nK\u1ebf th\u1eeba c\u1ea5u tr\u00fac ho\u1eb7c \u0111\u1ecbnh ngh\u0129a giao di\u1ec7n.<\/td>\n<\/tr>\n
          Th\u1ef1c hi\u1ec7n<\/td>\n\u0110\u01b0\u1eddng n\u00e9t \u0111\u1ee9t c\u00f3 h\u00ecnh tam gi\u00e1c r\u1ed7ng<\/td>\nM\u1ed9t g\u00f3i th\u1ef1c hi\u1ec7n giao di\u1ec7n c\u1ee7a g\u00f3i kh\u00e1c.<\/td>\nM\u1ed9t g\u00f3i c\u1ee5 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t h\u1ee3p \u0111\u1ed3ng tr\u1eebu t\u01b0\u1ee3ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          H\u01b0\u1edbng ph\u1ee5 thu\u1ed9c<\/h3>\n

          C\u00e1c ph\u1ee5 thu\u1ed9c l\u00e0 c\u00f3 h\u01b0\u1edbng. N\u1ebfu g\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i B, nh\u1eefng thay \u0111\u1ed5i \u1edf B c\u00f3 th\u1ec3 y\u00eau c\u1ea7u thay \u0111\u1ed5i \u1edf A. V\u1ec1 l\u00fd t\u01b0\u1edfng, c\u00e1c ph\u1ee5 thu\u1ed9c n\u00ean ch\u1ea3y theo m\u1ed9t h\u01b0\u1edbng duy nh\u1ea5t \u0111\u1ec3 tr\u00e1nh logic v\u00f2ng l\u1eb7p. M\u1ed9t ph\u1ee5 thu\u1ed9c v\u00f2ng x\u1ea3y ra khi g\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o B, v\u00e0 B ph\u1ee5 thu\u1ed9c v\u00e0o A. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t v\u00f2ng l\u1eb7p logic l\u00e0m ph\u1ee9c t\u1ea1p qu\u00e1 tr\u00ecnh bi\u00ean d\u1ecbch v\u00e0 b\u1ea3o tr\u00ec.<\/p>\n

          \ud83c\udfa8 K\u00fd hi\u1ec7u v\u00e0 bi\u1ec3u t\u01b0\u1ee3ng tr\u1ef1c quan<\/h2>\n

          T\u00ednh nh\u1ea5t qu\u00e1n trong k\u00fd hi\u1ec7u tr\u1ef1c quan \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea5t k\u1ef3 ai \u0111\u1ecdc s\u01a1 \u0111\u1ed3 \u0111\u1ec1u hi\u1ec3u ki\u1ebfn tr\u00fac ngay l\u1eadp t\u1ee9c. M\u1eb7c d\u00f9 c\u00e1c c\u00f4ng c\u1ee5 c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 kh\u00e1c nhau m\u1ed9t ch\u00fat, nh\u01b0ng k\u00fd hi\u1ec7u UML chu\u1ea9n v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh nh\u1ea5t qu\u00e1n.<\/p>\n

            \n
          • Bi\u1ec3u t\u01b0\u1ee3ng G\u00f3i:<\/strong> M\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 m\u00e9p g\u1eadp. T\u00ean \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean trong ho\u1eb7c b\u00ean d\u01b0\u1edbi m\u00e9p g\u1eadp.<\/li>\n
          • Ph\u1ee5 thu\u1ed9c:<\/strong> M\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t k\u1ebft th\u00fac b\u1eb1ng \u0111\u1ea7u m\u0169i t\u00ean h\u1edf h\u01b0\u1edbng v\u1ec1 g\u00f3i cung c\u1ea5p.<\/li>\n
          • \u0110\u1ed9 hi\u1ec3n th\u1ecb:<\/strong> S\u1eed d\u1ee5ng c\u00e1c k\u00fd hi\u1ec7u \u0111\u1ec3 bi\u1ec3u th\u1ecb m\u1ee9c \u0111\u1ed9 truy c\u1eadp:<\/li>\n
              \n
            • +<\/strong>: C\u00f4ng khai (hi\u1ec3n th\u1ecb v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c g\u00f3i).<\/li>\n
            • \u2013<\/strong>: Ri\u00eang t\u01b0 (ch\u1ec9 hi\u1ec3n th\u1ecb b\u00ean trong g\u00f3i).<\/li>\n
            • #<\/strong>: B\u1ea3o v\u1ec7 (hi\u1ec3n th\u1ecb trong g\u00f3i v\u00e0 c\u00e1c l\u1edbp con).<\/li>\n<\/ul>\n<\/ul>\n

              \ud83d\udee0\ufe0f C\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 G\u00f3i<\/h2>\n

              Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng. N\u00f3 \u0111\u00f2i h\u1ecfi ph\u00e2n t\u00edch, nh\u00f3m h\u1ee3p l\u00fd v\u00e0 x\u00e1c th\u1ef1c. L\u00e0m theo c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4 h\u00ecnh v\u1eefng ch\u1eafc.<\/p>\n

              B\u01b0\u1edbc 1: Ph\u00e2n t\u00edch y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng<\/h3>\n

              Tr\u01b0\u1edbc khi v\u1ebd, h\u00e3y hi\u1ec3u h\u1ec7 th\u1ed1ng c\u1ea7n l\u00e0m g\u00ec. Xem x\u00e9t l\u1ea1i c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c kh\u1ea3 n\u0103ng ch\u00ednh. T\u00ecm ki\u1ebfm nh\u1eefng khu v\u1ef1c tr\u00e1ch nhi\u1ec7m r\u00f5 r\u00e0ng. V\u00ed d\u1ee5, m\u1ed9t h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng c\u00f3 th\u1ec3 t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c module cho X\u00e1c th\u1ef1c, Giao d\u1ecbch v\u00e0 B\u00e1o c\u00e1o.<\/p>\n

              B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh c\u00e1c nh\u00f3m logic<\/h3>\n

              Gom c\u00e1c l\u1edbp, giao di\u1ec7n v\u00e0 th\u00e0nh ph\u1ea7n li\u00ean quan l\u1ea1i v\u1edbi nhau. Nh\u1eefng nh\u00f3m n\u00e0y s\u1ebd tr\u1edf th\u00e0nh c\u00e1c g\u00f3i c\u1ee7a b\u1ea1n. H\u00e3y t\u1ef1 h\u1ecfi b\u1ea3n th\u00e2n:<\/p>\n

                \n
              • C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y c\u00f3 chung m\u1ed9t m\u1ee5c \u0111\u00edch kh\u00f4ng?<\/li>\n
              • Ch\u00fang c\u00f3 th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i c\u00f9ng nhau kh\u00f4ng?<\/li>\n
              • Ch\u00fang c\u00f3 cung c\u1ea5p m\u1ed9t d\u1ecbch v\u1ee5 c\u1ee5 th\u1ec3 cho ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng kh\u00f4ng?<\/li>\n<\/ul>\n

                B\u01b0\u1edbc 3: X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi v\u00e0 giao di\u1ec7n<\/h3>\n

                Khi c\u00e1c nh\u00f3m \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, h\u00e3y x\u00e1c \u0111\u1ecbnh giao di\u1ec7n c\u00f4ng khai c\u1ee7a t\u1eebng g\u00f3i. G\u00f3i n\u00e0y ti\u1ebft l\u1ed9 \u0111i\u1ec1u g\u00ec cho c\u00e1c b\u00ean kh\u00e1c? \u0110i\u1ec1u g\u00ec n\u00f3 gi\u1eef k\u00edn? B\u01b0\u1edbc n\u00e0y c\u1ee7ng c\u1ed1 c\u00e1c nguy\u00ean t\u1eafc \u0111\u00f3ng g\u00f3i.<\/p>\n

                B\u01b0\u1edbc 4: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c<\/h3>\n

                V\u1ebd c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa c\u00e1c g\u00f3i. \u0110\u1ea3m b\u1ea3o c\u00e1c m\u0169i t\u00ean ch\u1ec9 t\u1eeb g\u00f3i ph\u1ee5 thu\u1ed9c \u0111\u1ebfn g\u00f3i \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Xem x\u00e9t b\u1ea3n \u0111\u1ed3 \u0111\u1ec3 t\u00ecm:<\/p>\n

                  \n
                • V\u00f2ng l\u1eb7p ho\u1eb7c chu tr\u00ecnh.<\/li>\n
                • C\u00e1c li\u00ean k\u1ebft ch\u00e9o kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n
                • C\u00e1c khu v\u1ef1c qu\u00e1 t\u1ea3i n\u01a1i qu\u00e1 nhi\u1ec1u g\u00f3i t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau.<\/li>\n<\/ul>\n

                  B\u01b0\u1edbc 5: Tinh ch\u1ec9nh v\u00e0 x\u00e1c nh\u1eadn<\/h3>\n

                  Xem x\u00e9t s\u01a1 \u0111\u1ed3 c\u00f9ng v\u1edbi \u0111\u1ed9i ph\u00e1t tri\u1ec3n. N\u00f3 c\u00f3 kh\u1edbp v\u1edbi c\u1ea5u tr\u00fac m\u00e3 th\u1ef1c t\u1ebf kh\u00f4ng? Quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean c\u00f3 r\u00f5 r\u00e0ng kh\u00f4ng? Tinh ch\u1ec9nh s\u01a1 \u0111\u1ed3 theo t\u1eebng b\u01b0\u1edbc khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n.<\/p>\n

                  \ud83d\ude80 C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho thi\u1ebft k\u1ebf g\u00f3i<\/h2>\n

                  Thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd c\u00e1c h\u00ecnh h\u1ed9p; \u0111\u00f3 l\u00e0 thi\u1ebft k\u1ebf m\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u01b0\u1ee3c. Tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp s\u1ebd c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng ki\u1ebfn tr\u00fac.<\/p>\n

                  1. Tu\u00e2n theo Nguy\u00ean t\u1eafc Ki\u1ebfn th\u1ee9c T\u1ed1i thi\u1ec3u<\/h3>\n

                  Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp gi\u1eefa c\u00e1c g\u00f3i. M\u1ed9t g\u00f3i n\u00ean bi\u1ebft \u00edt nh\u1ea5t c\u00f3 th\u1ec3 v\u1ec1 chi ti\u1ebft n\u1ed9i b\u1ed9 c\u1ee7a c\u00e1c g\u00f3i kh\u00e1c. S\u1eed d\u1ee5ng giao di\u1ec7n \u0111\u1ec3 \u0111i\u1ec1u ti\u1ebft truy c\u1eadp. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0 t\u0103ng t\u00ednh linh ho\u1ea1t.<\/p>\n

                  2. Duy tr\u00ec \u0111\u1ed9 g\u1eafn k\u1ebft cao<\/h3>\n

                  C\u00e1c th\u00e0nh ph\u1ea7n trong m\u1ed9t g\u00f3i duy nh\u1ea5t n\u00ean c\u00f3 m\u1ed1i li\u00ean h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi nhau. N\u1ebfu m\u1ed9t g\u00f3i ch\u1ee9a c\u00e1c l\u1edbp kh\u00f4ng li\u00ean quan v\u00e0 kh\u00f4ng t\u01b0\u01a1ng t\u00e1c th\u01b0\u1eddng xuy\u00ean, \u0111\u1ed9 g\u1eafn k\u1ebft s\u1ebd th\u1ea5p. \u0110\u1ed9 g\u1eafn k\u1ebft cao c\u00f3 ngh\u0129a l\u00e0 g\u00f3i c\u00f3 m\u1ed9t tr\u00e1ch nhi\u1ec7m duy nh\u1ea5t v\u00e0 r\u00f5 r\u00e0ng.<\/p>\n

                  3. Tr\u00e1nh c\u00e1c c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p s\u00e2u<\/h3>\n

                  M\u1eb7c d\u00f9 vi\u1ec7c l\u1ed3ng gh\u00e9p c\u00e1c g\u00f3i gi\u00fap t\u1ed5 ch\u1ee9c t\u1ed1t h\u01a1n, nh\u01b0ng \u0111\u1ed9 s\u00e2u qu\u00e1 l\u1edbn s\u1ebd l\u00e0m cho vi\u1ec7c \u0111i\u1ec1u h\u01b0\u1edbng tr\u1edf n\u00ean kh\u00f3 kh\u0103n. H\u1ea1n ch\u1ebf \u0111\u1ed9 s\u00e2u c\u1ee7a c\u00e2y g\u00f3i. N\u1ebfu m\u1ed9t g\u00f3i ch\u1ee9a h\u01a1n ba c\u1ea5p \u0111\u1ed9 g\u00f3i con, h\u00e3y c\u00e2n nh\u1eafc l\u00e0m ph\u1eb3ng c\u1ea5u tr\u00fac ho\u1eb7c t\u00e1i t\u1ed5 ch\u1ee9c logic.<\/p>\n

                  4. S\u1eed d\u1ee5ng quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean r\u00f5 r\u00e0ng<\/h3>\n

                  Vi\u1ec7c \u0111\u1eb7t t\u00ean r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng \u0111\u1ecdc hi\u1ec3u. S\u1eed d\u1ee5ng c\u00e1c t\u00ean m\u00f4 t\u1ea3 ph\u1ea3n \u00e1nh n\u1ed9i dung.<\/p>\n

                    \n
                  • T\u1ed1t:<\/strong> X\u1eed l\u00fd thanh to\u00e1n, X\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng, X\u00e1c th\u1ef1c d\u1eef li\u1ec7u<\/li>\n
                  • K\u00e9m:<\/strong> Module1, Core, Utils, GroupA<\/li>\n<\/ul>\n

                    5. Duy tr\u00ec h\u01b0\u1edbng c\u1ee7a c\u00e1c ph\u1ee5 thu\u1ed9c<\/h3>\n

                    M\u1ee5c ti\u00eau l\u00e0 m\u1ed9t \u0111\u1ed3 th\u1ecb c\u00f3 h\u01b0\u1edbng kh\u00f4ng chu tr\u00ecnh (DAG). C\u00e1c ph\u1ee5 thu\u1ed9c n\u00ean ch\u1ea3y t\u1eeb c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5p cao xu\u1ed1ng c\u1ea5p th\u1ea5p. V\u00ed d\u1ee5, l\u1edbp Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng n\u00ean ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp Kinh doanh, l\u1edbp n\u00e0y l\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp Truy c\u1eadp d\u1eef li\u1ec7u. Chi\u1ec1u ng\u01b0\u1ee3c l\u1ea1i l\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p.<\/p>\n

                    \ud83c\udd9a S\u01a1 \u0111\u1ed3 G\u00f3i so v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 UML kh\u00e1c<\/h2>\n

                    Hi\u1ec3u \u0111\u01b0\u1ee3c khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i thay v\u00ec c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c s\u1ebd ng\u0103n ng\u1eeba s\u1ef1 tr\u00f9ng l\u1eb7p v\u00e0 nh\u1ea7m l\u1eabn. M\u1ed7i s\u01a1 \u0111\u1ed3 ph\u1ee5c v\u1ee5 m\u1ed9t m\u1ee5c \u0111\u00edch c\u1ee5 th\u1ec3 trong chu k\u1ef3 m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n\n\n\n\n\n\n\n\n
                    Lo\u1ea1i s\u01a1 \u0111\u1ed3<\/th>\nTr\u1ecdng t\u00e2m<\/th>\nKhi n\u00e0o n\u00ean d\u00f9ng<\/th>\n<\/tr>\n<\/thead>\n
                    S\u01a1 \u0111\u1ed3 G\u00f3i<\/td>\nT\u1ed5 ch\u1ee9c c\u1ea5p cao v\u00e0 t\u00ednh module<\/td>\nTrong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch ki\u1ebfn tr\u00fac.<\/td>\n<\/tr>\n
                    S\u01a1 \u0111\u1ed3 l\u1edbp<\/td>\nC\u1ea5u tr\u00fac t\u0129nh c\u1ee7a c\u00e1c l\u1edbp v\u00e0 thu\u1ed9c t\u00ednh<\/td>\nTrong c\u00e1c giai \u0111o\u1ea1n thi\u1ebft k\u1ebf chi ti\u1ebft v\u00e0 tri\u1ec3n khai.<\/td>\n<\/tr>\n
                    S\u01a1 \u0111\u1ed3 th\u00e0nh ph\u1ea7n<\/td>\nC\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m v\u1eadt l\u00fd v\u00e0 giao di\u1ec7n c\u1ee7a ch\u00fang<\/td>\nKhi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c \u0111\u01a1n v\u1ecb tri\u1ec3n khai ho\u1eb7c th\u01b0 vi\u1ec7n.<\/td>\n<\/tr>\n
                    S\u01a1 \u0111\u1ed3 tri\u1ec3n khai<\/td>\nKi\u1ebfn tr\u00fac ph\u1ea7n c\u1ee9ng v\u00e0 tri\u1ec3n khai ph\u1ea7n m\u1ec1m<\/td>\nKhi l\u1eadp k\u1ebf ho\u1ea1ch h\u1ea1 t\u1ea7ng v\u00e0 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

                    Ngay c\u1ea3 nh\u1eefng ki\u1ebfn tr\u00fac s\u01b0 c\u00f3 kinh nghi\u1ec7m c\u0169ng c\u00f3 th\u1ec3 m\u1eafc b\u1eaby khi m\u00f4 h\u00ecnh h\u00f3a. Nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec3m nguy hi\u1ec3m n\u00e0y gi\u00fap duy tr\u00ec m\u1ed9t s\u01a1 \u0111\u1ed3 s\u1ea1ch s\u1ebd v\u00e0 h\u1eefu \u00edch.<\/p>\n

                    1. Qu\u00e1 chi ti\u1ebft h\u00f3a<\/h3>\n

                    S\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng n\u00ean l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u01b0\u1ee3c che gi\u1ea5u. Tr\u00e1nh th\u00eam thu\u1ed9c t\u00ednh ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c l\u1edbp b\u00ean trong c\u00e1c h\u1ed9p g\u00f3i. Gi\u1eef g\u00f3c nh\u00ecn \u1edf m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng. N\u1ebfu b\u1ea1n c\u1ea7n hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp, h\u00e3y s\u1eed d\u1ee5ng m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ri\u00eang bi\u1ec7t.<\/p>\n

                    2. B\u1ecf qua c\u00e1c chu tr\u00ecnh<\/h3>\n

                    C\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng tr\u00f2n l\u00e0 k\u1ebb th\u00f9 c\u1ee7a thi\u1ebft k\u1ebf module. N\u1ebfu g\u00f3i A nh\u1eadp g\u00f3i B, v\u00e0 g\u00f3i B nh\u1eadp g\u00f3i A, quy tr\u00ecnh x\u00e2y d\u1ef1ng s\u1ebd tr\u1edf n\u00ean kh\u00f4ng \u1ed5n \u0111\u1ecbnh. T\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n \u0111\u1ec3 ph\u00e1 v\u1ee1 chu tr\u00ecnh, th\u01b0\u1eddng b\u1eb1ng c\u00e1ch tr\u00edch xu\u1ea5t c\u00e1c giao di\u1ec7n chung v\u00e0o m\u1ed9t g\u00f3i th\u1ee9 ba.<\/p>\n

                    3. \u0110\u1ed9 chi ti\u1ebft kh\u00f4ng nh\u1ea5t qu\u00e1n<\/h3>\n

                    M\u1ed9t s\u1ed1 g\u00f3i c\u00f3 th\u1ec3 ch\u1ee9a h\u00e0ng ng\u00e0n l\u1edbp trong khi nh\u1eefng g\u00f3i kh\u00e1c ch\u1ec9 ch\u1ee9a hai l\u1edbp. S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng n\u00e0y cho th\u1ea5y s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p trong c\u00e1ch ph\u00e2n chia tr\u00e1ch nhi\u1ec7m. H\u00e3y h\u01b0\u1edbng \u0111\u1ebfn c\u00e1c g\u00f3i c\u00f3 k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau.<\/p>\n

                    4. C\u00e1c b\u1ee9c \u1ea3nh t\u0129nh<\/h3>\n

                    M\u1ed9t s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o ra m\u1ed9t l\u1ea7n v\u00e0 ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt s\u1ebd tr\u1edf th\u00e0nh g\u00e1nh n\u1eb7ng. Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, s\u01a1 \u0111\u1ed3 c\u0169ng ph\u1ea3i ph\u00e1t tri\u1ec3n theo. Xem s\u01a1 \u0111\u1ed3 nh\u01b0 t\u00e0i li\u1ec7u s\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec.<\/p>\n

                    \ud83c\udf10 C\u00e1c t\u00ecnh hu\u1ed1ng \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n

                    S\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00e1i ni\u1ec7m l\u00fd thuy\u1ebft; ch\u00fang gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m.<\/p>\n

                    T\u00ecnh hu\u1ed1ng 1: T\u00e1i c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng c\u0169<\/h3>\n

                    Khi ti\u1ebfp nh\u1eadn m\u1ed9t h\u1ec7 th\u1ed1ng l\u1edbn, \u0111\u01a1n th\u1ec3, s\u01a1 \u0111\u1ed3 g\u00f3i gi\u00fap x\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac hi\u1ec7n c\u00f3. N\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c module g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd c\u1ea7n \u0111\u01b0\u1ee3c t\u00e1ch r\u1eddi. N\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 n\u1ec1n t\u1ea3ng cho c\u00e1c chi\u1ebfn l\u01b0\u1ee3c di chuy\u1ec3n.<\/p>\n

                    T\u00ecnh hu\u1ed1ng 2: Ph\u00e1t tri\u1ec3n \u0111a \u0111\u1ed9i nh\u00f3m<\/h3>\n

                    Trong c\u00e1c t\u1ed5 ch\u1ee9c l\u1edbn, c\u00e1c \u0111\u1ed9i nh\u00f3m kh\u00e1c nhau s\u1edf h\u1eefu c\u00e1c ph\u1ea7n kh\u00e1c nhau c\u1ee7a h\u1ec7 th\u1ed1ng. S\u01a1 \u0111\u1ed3 g\u00f3i x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi s\u1edf h\u1eefu. \u0110\u1ed9i A s\u1edf h\u1eefu g\u00f3i Auth; \u0110\u1ed9i B s\u1edf h\u1eefu g\u00f3i B\u00e1o c\u00e1o. C\u00e1c giao di\u1ec7n gi\u1eefa ch\u00fang tr\u1edf th\u00e0nh h\u1ee3p \u0111\u1ed3ng h\u1ee3p t\u00e1c.<\/p>\n

                    T\u00ecnh hu\u1ed1ng 3: Ph\u00e1t tri\u1ec3n th\u01b0 vi\u1ec7n<\/h3>\n

                    Khi t\u1ea1o ra m\u1ed9t th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng, s\u01a1 \u0111\u1ed3 g\u00f3i x\u00e1c \u0111\u1ecbnh API c\u00f4ng khai. Ch\u00fang cho th\u1ea5y ph\u1ea7n n\u00e0o c\u1ee7a th\u01b0 vi\u1ec7n l\u00e0 \u1ed5n \u0111\u1ecbnh v\u00e0 d\u00e0nh cho s\u1eed d\u1ee5ng b\u00ean ngo\u00e0i, so v\u1edbi chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9.<\/p>\n

                    \ud83d\udcca C\u00e1c ch\u1ec9 s\u1ed1 s\u1ee9c kh\u1ecfe g\u00f3i<\/h2>\n

                    \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ki\u1ebfn tr\u00fac v\u1eabn v\u1eefng ch\u1eafc, h\u00e3y \u0111o l\u01b0\u1eddng c\u00e1c ch\u1ec9 s\u1ed1 c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c suy ra t\u1eeb s\u01a1 \u0111\u1ed3 g\u00f3i.<\/p>\n

                      \n
                    • S\u1ef1 li\u00ean k\u1ebft gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng (CBO):<\/strong> S\u1ed1 l\u01b0\u1ee3ng c\u00e1c g\u00f3i kh\u00e1c m\u00e0 m\u1ed9t g\u00f3i ph\u1ee5 thu\u1ed9c v\u00e0o. Th\u1ea5p h\u01a1n th\u01b0\u1eddng l\u00e0 t\u1ed1t h\u01a1n.<\/li>\n
                    • Ph\u1ea3n h\u1ed3i cho g\u00f3i (RFC):<\/strong> T\u1eadp h\u1ee3p c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1ecdi \u0111\u1ec3 ph\u1ea3n h\u1ed3i m\u1ed9t tin nh\u1eafn g\u1eedi \u0111\u1ebfn g\u00f3i.<\/li>\n
                    • S\u1ef1 li\u00ean k\u1ebft \u0111\u1ea7u v\u00e0o (Ca):<\/strong> S\u1ed1 l\u01b0\u1ee3ng c\u00e1c g\u00f3i kh\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i n\u00e0y.<\/li>\n
                    • S\u1ef1 li\u00ean k\u1ebft \u0111\u1ea7u ra (Ce):<\/strong> S\u1ed1 l\u01b0\u1ee3ng c\u00e1c g\u00f3i m\u00e0 g\u00f3i n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o.<\/li>\n<\/ul>\n

                      S\u1ef1 li\u00ean k\u1ebft \u0111\u1ea7u ra cao cho th\u1ea5y m\u1ed9t g\u00f3i qu\u00e1 x\u00e2m l\u1ea5n. S\u1ef1 li\u00ean k\u1ebft \u0111\u1ea7u v\u00e0o cao cho th\u1ea5y m\u1ed9t g\u00f3i quan tr\u1ecdng v\u00e0 \u1ed5n \u0111\u1ecbnh. M\u1ee5c ti\u00eau l\u00e0 c\u00e2n b\u1eb1ng hai y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ec3 duy tr\u00ec t\u00ednh linh ho\u1ea1t v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n

                      \ud83d\udd04 S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u1ea5u tr\u00fac g\u00f3i<\/h2>\n

                      Ph\u1ea7n m\u1ec1m kh\u00f4ng t\u0129nh. Khi y\u00eau c\u1ea7u thay \u0111\u1ed5i, c\u1ea5u tr\u00fac g\u00f3i ph\u1ea3i th\u00edch nghi. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u00e1i c\u1ea5u tr\u00fac ki\u1ebfn tr\u00fac.<\/p>\n

                      Nh\u1eadn di\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng<\/h3>\n

                      T\u00ecm ki\u1ebfm c\u00e1c d\u1ea5u hi\u1ec7u cho th\u1ea5y c\u1ea5u tr\u00fac g\u00f3i hi\u1ec7n t\u1ea1i kh\u00f4ng c\u00f2n ph\u00f9 h\u1ee3p:<\/p>\n

                        \n
                      • Lo l\u1eafng h\u1ed7n h\u1ee3p:<\/strong> M\u1ed9t g\u00f3i x\u1eed l\u00fd c\u1ea3 logic giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n
                      • G\u00f3i Th\u1ea7n:<\/strong> M\u1ed9t g\u00f3i ch\u1ee9a g\u1ea7n nh\u01b0 m\u1ecdi th\u1ee9.<\/li>\n
                      • C\u00e1c g\u00f3i c\u00f4 l\u1eadp:<\/strong> M\u1ed9t g\u00f3i m\u00e0 kh\u00f4ng c\u00f3 g\u00f3i n\u00e0o kh\u00e1c t\u01b0\u01a1ng t\u00e1c v\u1edbi n\u00f3.<\/li>\n<\/ul>\n

                        C\u00e1c b\u01b0\u1edbc t\u00e1i c\u1ea5u tr\u00fac<\/h3>\n
                          \n
                        1. Ph\u00e2n t\u00edch:<\/strong> S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch t\u0129nh \u0111\u1ec3 t\u00ecm c\u00e1c ph\u1ee5 thu\u1ed9c.<\/li>\n
                        2. L\u00ean k\u1ebf ho\u1ea1ch:<\/strong> Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac g\u00f3i m\u1edbi.<\/li>\n
                        3. Di chuy\u1ec3n:<\/strong> Di chuy\u1ec3n c\u00e1c l\u1edbp v\u00e0 t\u1ec7p tin \u0111\u1ebfn c\u00e1c g\u00f3i m\u1edbi.<\/li>\n
                        4. X\u00e1c minh:<\/strong> Ch\u1ea1y c\u00e1c b\u00e0i ki\u1ec3m th\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u00e0nh vi kh\u00f4ng thay \u0111\u1ed5i.<\/li>\n
                        5. C\u1eadp nh\u1eadt:<\/strong>C\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 \u0111\u1ec3 ph\u1ea3n \u00e1nh th\u1ef1c t\u1ebf m\u1edbi.<\/li>\n<\/ol>\n

                          \ud83d\udcdd T\u00f3m t\u1eaft<\/h2>\n

                          S\u01a1 \u0111\u1ed3 g\u00f3i UML l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 n\u1ec1n t\u1ea3ng \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m. N\u00f3 bi\u1ebfn m\u1ed9t m\u1ea1ng l\u01b0\u1edbi m\u00e3 ngu\u1ed3n r\u1ed1i ren th\u00e0nh m\u1ed9t b\u1ea3n \u0111\u1ed3 c\u00f3 c\u1ea5u tr\u00fac v\u1ec1 c\u00e1c tr\u00e1ch nhi\u1ec7m. B\u1eb1ng c\u00e1ch t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0o c\u00e1c g\u00f3i, x\u00e1c \u0111\u1ecbnh c\u00e1c giao di\u1ec7n r\u00f5 r\u00e0ng v\u00e0 qu\u1ea3n l\u00fd c\u00e1c ph\u1ee5 thu\u1ed9c, c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c h\u1ec7 th\u1ed1ng d\u1ec5 hi\u1ec3u, d\u1ec5 ki\u1ec3m th\u1eed v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec h\u01a1n.<\/p>\n

                          H\u00e3y nh\u1edb r\u1eb1ng s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 t\u01b0 duy. N\u00f3 h\u1ed7 tr\u1ee3 giao ti\u1ebfp v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch. N\u00f3 kh\u00f4ng thay th\u1ebf m\u00e3 ngu\u1ed3n, nh\u01b0ng h\u01b0\u1edbng d\u1eabn vi\u1ec7c t\u1ea1o ra m\u00e3 ngu\u1ed3n ch\u1ea5t l\u01b0\u1ee3ng cao. T\u1eadp trung v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng, nh\u1ea5t qu\u00e1n v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc ki\u1ebfn tr\u00fac. Tr\u00e1nh c\u00e1m d\u1ed7 l\u00e0m ph\u1ee9c t\u1ea1p h\u00f3a c\u00e1ch bi\u1ec3u di\u1ec5n tr\u1ef1c quan. Gi\u1eef c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p \u1edf m\u1ee9c \u0111\u1ed9 n\u00f4ng, c\u00e1c ph\u1ee5 thu\u1ed9c ph\u1ea3i c\u00f3 h\u01b0\u1edbng v\u00e0 t\u00ean g\u1ecdi ph\u1ea3i m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng.<\/p>\n

                          D\u00f9 b\u1ea1n \u0111ang b\u1eaft \u0111\u1ea7u m\u1ed9t d\u1ef1 \u00e1n m\u1edbi hay ph\u00e2n t\u00edch m\u1ed9t h\u1ec7 th\u1ed1ng c\u0169, nh\u1eefng k\u1ef9 n\u0103ng thu \u0111\u01b0\u1ee3c t\u1eeb vi\u1ec7c th\u00e0nh th\u1ea1o m\u00f4 h\u00ecnh h\u00f3a g\u00f3i s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch l\u1edbn cho \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a ph\u1ea7n m\u1ec1m c\u1ee7a b\u1ea1n. S\u1eed d\u1ee5ng c\u00e1c h\u01b0\u1edbng d\u1eabn, b\u1ea3ng bi\u1ec3u v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t \u0111\u01b0\u1ee3c n\u00eau \u1edf \u0111\u00e2y \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c s\u01a1 \u0111\u1ed3 v\u01b0\u1ee3t qua th\u1eed th\u00e1ch c\u1ee7a th\u1eddi gian.<\/p>\n","protected":false},"excerpt":{"rendered":"

                          Trong th\u1ebf gi\u1edbi ph\u1ee9c t\u1ea1p c\u1ee7a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111\u1ed3ng ti\u1ec1n c\u1ee7a th\u00e0nh c\u00f4ng. Khi c\u00e1c h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p, vi\u1ec7c…<\/p>\n","protected":false},"author":1,"featured_media":1873,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"H\u01b0\u1edbng d\u1eabn S\u01a1 \u0111\u1ed3 G\u00f3i UML: C\u1ea5u tr\u00fac & Th\u1ef1c h\u00e0nh T\u1ed1t nh\u1ea5t \ud83d\udce6","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 g\u00f3i UML m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. 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