{"id":1874,"date":"2026-04-11T02:35:02","date_gmt":"2026-04-11T02:35:02","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/uml-package-diagram-walkthrough-guide\/"},"modified":"2026-04-11T02:35:02","modified_gmt":"2026-04-11T02:35:02","slug":"uml-package-diagram-walkthrough-guide","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/uml-package-diagram-walkthrough-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n: T\u1eeb \u00fd t\u01b0\u1edfng \u0111\u1ebfn s\u01a1 \u0111\u1ed3 g\u00f3i UML cu\u1ed1i c\u00f9ng"},"content":{"rendered":"

Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o vi\u1ec7c giao ti\u1ebfp r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c b\u00ean li\u00ean quan, nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 ng\u01b0\u1eddi b\u1ea3o tr\u00ec. Trung t\u00e2m c\u1ee7a vi\u1ec7c giao ti\u1ebfp n\u00e0y ch\u00ednh l\u00e0 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML). Trong s\u1ed1 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 kh\u00e1c nhau, s\u01a1 \u0111\u1ed3 G\u00f3i n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng \u0111\u1ec3 t\u1ed5 ch\u1ee9c c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn chi ti\u1ebft v\u1ec1 c\u00e1ch x\u00e2y d\u1ef1ng, tinh ch\u1ec9nh v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i. Ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c n\u1ec1n t\u1ea3ng l\u00fd thuy\u1ebft, \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n v\u00e0 c\u00e1c nguy\u00ean t\u1eafc c\u1ea5u tr\u00fac t\u1ed1t nh\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n

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

Hi\u1ec3u r\u00f5 n\u1ec1n t\u1ea3ng c\u1ee7a s\u01a1 \u0111\u1ed3 G\u00f3i \ud83e\uddf1<\/h2>\n

S\u01a1 \u0111\u1ed3 G\u00f3i th\u1ec3 hi\u1ec7n m\u1ed9t g\u00f3c nh\u00ecn v\u1ec1 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan v\u00e0o c\u00e1c container logic \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u00f3i. Kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 l\u1edbp t\u1eadp trung v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ri\u00eang l\u1ebb, s\u01a1 \u0111\u1ed3 g\u00f3i ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c \u0111\u1ed9 tr\u1eeb t\u01b0\u1ee3ng cao h\u01a1n. S\u1ef1 tr\u1eeb t\u01b0\u1ee3ng n\u00e0y l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong c\u00e1c d\u1ef1 \u00e1n ph\u1ea7n m\u1ec1m quy m\u00f4 l\u1edbn.<\/p>\n

M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a lo\u1ea1i s\u01a1 \u0111\u1ed3 n\u00e0y l\u00e0 tr\u1ef1c quan h\u00f3a s\u1ef1 t\u1ed5 ch\u1ee9c c\u1ee7a m\u00e3 ngu\u1ed3n, th\u00e0nh ph\u1ea7n v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng con. N\u00f3 gi\u00fap tr\u1ea3 l\u1eddi nh\u1eefng c\u00e2u h\u1ecfi c\u01a1 b\u1ea3n v\u1ec1 c\u1ea5u tr\u00fac c\u1ee7a \u1ee9ng d\u1ee5ng:<\/p>\n

    \n
  • C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0o t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau?<\/li>\n
  • H\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c ph\u1ea7n c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd nh\u01b0 th\u1ebf n\u00e0o?<\/li>\n
  • \u0110\u00e2u l\u00e0 ranh gi\u1edbi gi\u1eefa c\u00e1c l\u1edbp kh\u00e1c nhau trong ki\u1ebfn tr\u00fac?<\/li>\n<\/ul>\n

    B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c ranh gi\u1edbi n\u00e0y t\u1eeb s\u1edbm, c\u00e1c \u0111\u1ed9i nh\u00f3m c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp c\u00e1c h\u1ee3p \u0111\u1ed3ng gi\u1eefa c\u00e1c module. \u0110i\u1ec1u n\u00e0y gi\u1ea3m thi\u1ec3u s\u1ef1 g\u1eafn k\u1ebft ch\u1eb7t ch\u1ebd v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c chu k\u1ef3 ph\u00e1t tri\u1ec3n \u0111\u1ed9c l\u1eadp. M\u1ed7i g\u00f3i c\u00f3 th\u1ec3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kh\u00f4ng gian t\u00ean, m\u1ed9t h\u1ec7 th\u1ed1ng con, m\u1ed9t th\u01b0 vi\u1ec7n ho\u1eb7c m\u1ed9t l\u0129nh v\u1ef1c kinh doanh c\u1ee5 th\u1ec3.<\/p>\n

    C\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i v\u00e0 \u0111\u1ecbnh ngh\u0129a \ud83d\udcda<\/h2>\n

    Tr\u01b0\u1edbc khi x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3, c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 tham gia. S\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c h\u1ed9p; n\u00f3 l\u00e0 s\u1ef1 bi\u1ec3u di\u1ec5n v\u1ec1 c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 ph\u1ee5 thu\u1ed9c.<\/p>\n

    1. G\u00f3i \ud83d\udcc1<\/h3>\n

    C\u00e1c g\u00f3i \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111\u01a1n v\u1ecb c\u1ea5u tr\u00fac ch\u00ednh. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 kh\u00f4ng gian t\u00ean \u0111\u1ec3 ng\u0103n ch\u1eb7n xung \u0111\u1ed9t t\u00ean v\u00e0 t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd. M\u1ed9t g\u00f3i c\u00f3 th\u1ec3 ch\u1ee9a:<\/p>\n

      \n
    • C\u00e1c g\u00f3i kh\u00e1c (\u0111\u00f3ng g\u00f3i l\u1ed3ng nhau).<\/li>\n
    • L\u1edbp.<\/li>\n
    • Giao di\u1ec7n.<\/li>\n
    • Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n
    • Th\u00e0nh ph\u1ea7n.<\/li>\n<\/ul>\n

      Vi\u1ec7c \u0111\u00f3ng g\u00f3i l\u1ed3ng nhau cho ph\u00e9p t\u1ea1o c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p. V\u00ed d\u1ee5, m\u1ed9t g\u00f3i c\u1ea5p cao \u201cCore\u201d c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c g\u00f3i con cho \u201cC\u01a1 s\u1edf d\u1eef li\u1ec7u\u201d, \u201cB\u1ea3o m\u1eadt\u201d v\u00e0 \u201cM\u1ea1ng\u201d. C\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p n\u00e0y ph\u1ea3n \u00e1nh c\u1ea5u tr\u00fac th\u01b0 m\u1ee5c c\u1ee7a m\u00e3 ngu\u1ed3n th\u1ef1c t\u1ebf.<\/p>\n

      2. M\u1ed1i quan h\u1ec7 \ud83d\udd17<\/h3>\n

      \u0110i\u1ec3m m\u1ea1nh 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. Nh\u1eefng m\u1ed1i quan h\u1ec7 n\u00e0y x\u00e1c \u0111\u1ecbnh lu\u1ed3ng th\u00f4ng tin v\u00e0 \u0111i\u1ec1u khi\u1ec3n b\u00ean trong h\u1ec7 th\u1ed1ng.<\/p>\n

        \n
      • Ph\u1ee5 thu\u1ed9c:<\/strong>M\u1ed9t g\u00f3i c\u1ea7n g\u00f3i kh\u00e1c \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng. \u0110\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 \u201cs\u1eed d\u1ee5ng\u201d. Nh\u1eefng thay \u0111\u1ed5i trong g\u00f3i cung c\u1ea5p c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn g\u00f3i kh\u00e1ch h\u00e0ng.<\/li>\n
      • Li\u00ean k\u1ebft:<\/strong>M\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac n\u01a1i m\u1ed9t g\u00f3i ch\u1ee9a m\u1ed9t th\u1ec3 hi\u1ec7n ho\u1eb7c tham chi\u1ebfu \u0111\u1ebfn g\u00f3i kh\u00e1c.<\/li>\n
      • T\u1ed5ng qu\u00e1t h\u00f3a:<\/strong>M\u1ed9t m\u1ed1i quan h\u1ec7 cho th\u1ea5y m\u1ed9t g\u00f3i l\u00e0 phi\u00ean b\u1ea3n chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a g\u00f3i kh\u00e1c (k\u1ebf th\u1eeba).<\/li>\n
      • Th\u1ef1c hi\u1ec7n:<\/strong>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi m\u1ed9t g\u00f3i tri\u1ec3n khai m\u1ed9t giao di\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong m\u1ed9t g\u00f3i kh\u00e1c.<\/li>\n<\/ul>\n

        3. \u0110\u1ed9 hi\u1ec3n th\u1ecb \ud83d\udd75\ufe0f<\/h3>\n

        Gi\u1ed1ng nh\u01b0 trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, t\u00ednh kh\u1ea3 d\u1ee5ng ki\u1ec3m so\u00e1t nh\u1eefng g\u00ec c\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb b\u00ean ngo\u00e0i m\u1ed9t g\u00f3i. C\u00e1c g\u00f3i x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n c\u00f4ng khai v\u00e0 ri\u00eang t\u01b0. M\u1ed9t g\u00f3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 c\u00f4ng khai s\u1ebd ti\u1ebft l\u1ed9 n\u1ed9i dung c\u1ee7a n\u00f3 cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng b\u00ean ngo\u00e0i, trong khi m\u1ed9t g\u00f3i ri\u00eang t\u01b0 ch\u1ec9 gi\u1edbi h\u1ea1n quy\u1ec1n truy c\u1eadp v\u00e0o chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9.<\/p>\n

        L\u00ean k\u1ebf ho\u1ea1ch ki\u1ebfn tr\u00fac \ud83d\uddfa\ufe0f<\/h2>\n

        Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 c\u1ea7n v\u1ed9i v\u00e0ng. N\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u1ea5u tr\u00fac k\u1ebft qu\u1ea3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c ti\u00eau kinh doanh v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c k\u1ef9 thu\u1eadt.<\/p>\n

        B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh c\u00e1c mi\u1ec1n kinh doanh \ud83c\udfe2<\/h3>\n

        B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch b\u1ea3n \u0111\u1ed3 c\u00e1c kh\u1ea3 n\u0103ng kinh doanh. H\u1ec7 th\u1ed1ng th\u1ef1c hi\u1ec7n nh\u1eefng ch\u1ee9c n\u0103ng n\u00e0o? Nh\u00f3m c\u00e1c ch\u1ee9c n\u0103ng n\u00e0y th\u00e0nh c\u00e1c mi\u1ec1n logic. V\u00ed d\u1ee5, m\u1ed9t h\u1ec7 th\u1ed1ng b\u00e1n l\u1ebb c\u00f3 th\u1ec3 bao g\u1ed3m \u201cX\u1eed l\u00fd \u0111\u01a1n h\u00e0ng\u201d, \u201cQu\u1ea3n l\u00fd kho h\u00e0ng\u201d v\u00e0 \u201cQuan h\u1ec7 kh\u00e1ch h\u00e0ng\u201d. Nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y tr\u1edf th\u00e0nh c\u00e1c \u1ee9ng c\u1eed vi\u00ean ban \u0111\u1ea7u cho c\u00e1c g\u00f3i.<\/p>\n

        B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh t\u00ednh g\u1eafn k\u1ebft v\u00e0 t\u00ednh li\u00ean k\u1ebft \ud83e\udde9<\/h3>\n

        T\u00ednh g\u1eafn k\u1ebft cao c\u00f3 ngh\u0129a l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong m\u1ed9t g\u00f3i c\u00f3 m\u1ed1i li\u00ean h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi nhau. T\u00ednh li\u00ean k\u1ebft th\u1ea5p c\u00f3 ngh\u0129a l\u00e0 c\u00e1c ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c g\u00f3i \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a. \u0110\u00e2y l\u00e0 quy t\u1eafc v\u00e0ng c\u1ee7a ki\u1ebfn tr\u00fac.<\/p>\n

          \n
        • T\u00ednh g\u1eafn k\u1ebft cao:<\/strong>Gi\u1eef d\u1eef li\u1ec7u v\u00e0 logic li\u00ean quan c\u00f9ng nhau. N\u1ebfu hai l\u1edbp lu\u00f4n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau, ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng cao n\u00ean n\u1eb1m trong c\u00f9ng m\u1ed9t g\u00f3i.<\/li>\n
        • T\u00ednh li\u00ean k\u1ebft th\u1ea5p:<\/strong>Gi\u1ea3m thi\u1ec3u ph\u1ee5 thu\u1ed9c. N\u1ebfu G\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o G\u00f3i B, h\u00e3y \u0111\u1ea3m b\u1ea3o G\u00f3i B kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o G\u00f3i A tr\u1eeb khi th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n

          B\u01b0\u1edbc 3: X\u00e1c \u0111\u1ecbnh l\u1edbp ki\u1ebfn tr\u00fac \ud83c\udfd7\ufe0f<\/h3>\n

          H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p tu\u00e2n theo ki\u1ebfn tr\u00fac l\u1edbp. C\u00e1c l\u1edbp ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

            \n
          • L\u1edbp giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng:<\/strong>Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 logic t\u01b0\u01a1ng t\u00e1c.<\/li>\n
          • L\u1edbp \u1ee9ng d\u1ee5ng:<\/strong>Logic kinh doanh v\u00e0 qu\u1ea3n l\u00fd quy tr\u00ecnh l\u00e0m vi\u1ec7c.<\/li>\n
          • L\u1edbp mi\u1ec1n:<\/strong>C\u00e1c th\u1ef1c th\u1ec3 v\u00e0 quy t\u1eafc kinh doanh c\u1ed1t l\u00f5i.<\/li>\n
          • L\u1edbp c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng:<\/strong>Truy c\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u, h\u1ec7 th\u1ed1ng t\u1eadp tin v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n

            Tr\u1ef1c quan h\u00f3a c\u00e1c l\u1edbp n\u00e0y trong s\u01a1 \u0111\u1ed3 g\u00f3i s\u1ebd l\u00e0m r\u00f5 h\u01b0\u1edbng c\u1ee7a c\u00e1c ph\u1ee5 thu\u1ed9c. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c l\u1edbp cao h\u01a1n ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c l\u1edbp th\u1ea5p h\u01a1n, nh\u01b0ng ch\u01b0a bao gi\u1edd ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n

            Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac s\u01a1 \u0111\u1ed3 \ud83c\udfa8<\/h2>\n

            Sau khi giai \u0111o\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch ho\u00e0n t\u1ea5t, qu\u00e1 tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a th\u1ef1c s\u1ef1 b\u1eaft \u0111\u1ea7u. M\u1ee5c ti\u00eau l\u00e0 t\u1ea1o ra m\u1ed9t bi\u1ec3u di\u1ec5n tr\u1ef1c quan r\u00f5 r\u00e0ng m\u00e0 c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 hi\u1ec3u m\u00e0 kh\u00f4ng b\u1ecb nh\u1ea7m l\u1eabn.<\/p>\n

            B\u01b0\u1edbc 1: V\u1ebd b\u1ea3n ph\u00e1c th\u1ea3o m\u1ee9c cao nh\u1ea5t \ud83d\uddbc\ufe0f<\/h3>\n

            B\u1eaft \u0111\u1ea7u t\u1eeb m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng cao nh\u1ea5t. V\u1ebd c\u00e1c g\u00f3i ch\u00ednh \u0111\u1ea1i di\u1ec7n cho c\u00e1c h\u1ec7 th\u1ed1ng con ch\u00ednh. Tr\u00e1nh l\u1ea5p \u0111\u1ea7y b\u1ea3n xem n\u00e0y b\u1eb1ng qu\u00e1 nhi\u1ec1u chi ti\u1ebft. M\u1ee5c ti\u00eau l\u00e0 cung c\u1ea5p m\u1ed9t b\u1ea3n \u0111\u1ed3 to\u00e0n b\u1ed9 c\u1ea3nh quan.<\/p>\n

            B\u01b0\u1edbc 2: Tinh ch\u1ec9nh c\u1ea5u tr\u00fac b\u00ean trong \ud83d\udd0d<\/h3>\n

            Sau khi thi\u1ebft l\u1eadp m\u1ee9c cao nh\u1ea5t, \u0111i s\u00e2u v\u00e0o c\u00e1c g\u00f3i c\u1ee5 th\u1ec3. M\u1edf r\u1ed9ng c\u00e1c g\u00f3i ph\u1ee9c t\u1ea1p th\u00e0nh c\u00e1c g\u00f3i con c\u1ea5u th\u00e0nh. Vi\u1ec7c tinh ch\u1ec9nh l\u1eb7p l\u1ea1i n\u00e0y ng\u0103n ng\u1eeba s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean l\u1ed9n x\u1ed9n.<\/p>\n

            B\u01b0\u1edbc 3: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c \ud83d\udcc9<\/h3>\n

            V\u1ebd c\u00e1c m\u0169i t\u00ean \u0111\u1ec3 ch\u1ec9 ra c\u00e1c m\u1ed1i quan h\u1ec7. S\u1eed d\u1ee5ng k\u00fd hi\u1ec7u chu\u1ea9n cho c\u00e1c lo\u1ea1i m\u1ed1i quan h\u1ec7 kh\u00e1c nhau:<\/p>\n

              \n
            • M\u0169i t\u00ean g\u00e3y v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean h\u1edf \u0111\u1ec3 bi\u1ec3u di\u1ec5n m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c.<\/li>\n
            • \u0110\u01b0\u1eddng li\u1ec1n \u0111\u1ec3 bi\u1ec3u di\u1ec5n m\u1ed1i quan h\u1ec7 li\u00ean k\u1ebft.<\/li>\n
            • H\u00ecnh tam gi\u00e1c \u0111\u1ec3 bi\u1ec3u di\u1ec5n kh\u00e1i qu\u00e1t h\u00f3a.<\/li>\n<\/ul>\n

              \u0110\u1ea3m b\u1ea3o c\u00e1c m\u0169i t\u00ean ch\u1ec9 t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng (ng\u01b0\u1eddi d\u00f9ng) \u0111\u1ebfn ph\u00eda nh\u00e0 cung c\u1ea5p (\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng). D\u1ea5u hi\u1ec7u tr\u1ef1c quan n\u00e0y ngay l\u1eadp t\u1ee9c cho th\u1ea5y n\u01a1i n\u00e0o t\u1ed3n t\u1ea1i c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c.<\/p>\n

              B\u01b0\u1edbc 4: X\u00e1c minh theo c\u00e1c quy t\u1eafc \u2705<\/h3>\n

              Xem x\u00e9t s\u01a1 \u0111\u1ed3 theo c\u00e1c gi\u1edbi h\u1ea1n ki\u1ebfn tr\u00fac. Ki\u1ec3m tra xem c\u00f3:<\/p>\n

                \n
              • C\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c v\u00f2ng tr\u00f2n gi\u1eefa c\u00e1c g\u00f3i.<\/li>\n
              • Vi ph\u1ea1m c\u00e1c quy t\u1eafc ph\u00e2n l\u1edbp.<\/li>\n
              • C\u00e1c g\u00f3i qu\u00e1 r\u1ed9ng ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng li\u00ean quan.<\/li>\n
              • Thi\u1ebfu c\u00e1c giao di\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111i\u1ec1u ph\u1ed1i truy c\u1eadp.<\/li>\n<\/ul>\n

                Qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p b\u1eb1ng b\u1ea3ng bi\u1ec3u \ud83d\udcca<\/h2>\n

                Khi x\u1eed l\u00fd c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p, m\u00f4 t\u1ea3 v\u0103n b\u1ea3n c\u00f3 th\u1ec3 g\u00e2y hi\u1ec3u l\u1ea7m. M\u1ed9t b\u1ea3ng c\u00f3 c\u1ea5u tr\u00fac c\u00f3 th\u1ec3 l\u00e0m r\u00f5 c\u00e1c quy t\u1eafc \u0111i\u1ec1u ch\u1ec9nh t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c g\u00f3i.<\/p>\n\n\n\n\n\n\n\n
                T\u00ean g\u00f3i<\/th>\nTr\u00e1ch nhi\u1ec7m<\/th>\nGiao di\u1ec7n c\u00f4ng khai<\/th>\nM\u1ed1i ph\u1ee5 thu\u1ed9c<\/th>\n<\/tr>\n<\/thead>\n
                AuthModule<\/td>\nX\u1eed l\u00fd \u0111\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng v\u00e0 qu\u1ea3n l\u00fd phi\u00ean l\u00e0m vi\u1ec7c<\/td>\nValidateUser, CreateSession<\/td>\nDatabase, LogModule<\/td>\n<\/tr>\n
                PaymentGateway<\/td>\nX\u1eed l\u00fd c\u00e1c giao d\u1ecbch t\u00e0i ch\u00ednh<\/td>\nChargeCard, Refund<\/td>\nAuthModule, Notification<\/td>\n<\/tr>\n
                ReportingEngine<\/td>\nT\u1ea1o ra c\u00e1c ph\u00e2n t\u00edch v\u00e0 b\u1ea3n t\u00f3m t\u1eaft<\/td>\nGenerateReport, ExportCSV<\/td>\nDataWarehouse<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \u0110\u1ecbnh d\u1ea1ng b\u1ea3ng n\u00e0y b\u1ed5 sung cho s\u01a1 \u0111\u1ed3 tr\u1ef1c quan b\u1eb1ng c\u00e1ch cung c\u1ea5p c\u00e1c chi ti\u1ebft c\u1ee5 th\u1ec3 v\u1ec1 giao di\u1ec7n v\u00e0 tr\u00e1ch nhi\u1ec7m m\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u00f3 th\u1ec3 bi\u1ec3u di\u1ec5n r\u00f5 r\u00e0ng b\u1eb1ng h\u00ecnh v\u1ebd.<\/p>\n

                C\u00e1c m\u1eabu ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1c m\u1eabu sai l\u1ea7m \ud83d\udea6<\/h2>\n

                C\u00e1c ki\u1ebfn tr\u00fac s\u01b0 c\u00f3 kinh nghi\u1ec7m nh\u1eadn ra c\u00e1c m\u1eabu l\u1eb7p l\u1ea1i. Hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng m\u1eabu n\u00e0y gi\u00fap \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf t\u1ed1t h\u01a1n.<\/p>\n

                C\u00e1c m\u1eabu \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u2705<\/h3>\n
                  \n
                • T\u00e1ch giao di\u1ec7n:<\/strong>T\u00e1ch c\u00e1c giao di\u1ec7n l\u1edbn th\u00e0nh c\u00e1c g\u00f3i nh\u1ecf h\u01a1n, chuy\u00ean bi\u1ec7t theo vai tr\u00f2. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n c\u00e1c kh\u00e1ch h\u00e0ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c ph\u01b0\u01a1ng th\u1ee9c m\u00e0 h\u1ecd kh\u00f4ng s\u1eed d\u1ee5ng.<\/li>\n
                • Facade:<\/strong>T\u1ea1o m\u1ed9t g\u00f3i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t giao di\u1ec7n \u0111\u01a1n gi\u1ea3n cho m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c m\u00e0 c\u00e1c g\u00f3i b\u00ean ngo\u00e0i c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y.<\/li>\n
                • Nh\u00f3m kh\u00f4ng gian t\u00ean:<\/strong>Gom t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp li\u00ean quan d\u01b0\u1edbi m\u1ed9t g\u00f3i kh\u00f4ng gian t\u00ean duy nh\u1ea5t \u0111\u1ec3 tr\u00e1nh l\u00e0m b\u1ea9n kh\u00f4ng gian t\u00ean to\u00e0n c\u1ee5c.<\/li>\n<\/ul>\n

                  Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn \u26a0\ufe0f<\/h3>\n
                    \n
                  • G\u00f3i Th\u1ea7n:<\/strong>M\u1ed9t g\u00f3i ch\u1ee9a qu\u00e1 nhi\u1ec1u l\u1edbp kh\u00f4ng li\u00ean quan. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 th\u1ea5t b\u1ea1i trong vi\u1ec7c t\u00e1ch bi\u1ec7t c\u00e1c v\u1ea5n \u0111\u1ec1.<\/li>\n
                  • V\u00f2ng ph\u1ee5 thu\u1ed9c:<\/strong>G\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o B, v\u00e0 B ph\u1ee5 thu\u1ed9c v\u00e0o A. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c tri\u1ec3n khai v\u00e0 ki\u1ec3m th\u1eed tr\u1edf n\u00ean kh\u00f3 kh\u0103n v\u00ec c\u1ea3 hai \u0111\u1ec1u kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 g\u00f3i kia \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch ho\u1eb7c kh\u1edfi t\u1ea1o tr\u01b0\u1edbc.<\/li>\n
                  • L\u1ed3ng gh\u00e9p s\u00e2u:<\/strong>T\u1ea1o qu\u00e1 nhi\u1ec1u c\u1ea5p \u0111\u1ed9 g\u00f3i con (v\u00ed d\u1ee5: A\/B\/C\/D\/E). \u0110i\u1ec1u n\u00e0y g\u00e2y nh\u1ea7m l\u1eabn v\u00e0 l\u00e0m cho vi\u1ec7c \u0111i\u1ec1u h\u01b0\u1edbng tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/li>\n
                  • B\u1ea3n ch\u1ea5t \u1ea9n gi\u1ea5u:<\/strong>C\u00f4ng khai c\u00e1c l\u1edbp n\u1ed9i b\u1ed9 m\u00e0 n\u00ean \u0111\u01b0\u1ee3c gi\u1eef ri\u00eang t\u01b0. \u0110i\u1ec1u n\u00e0y bu\u1ed9c c\u00e1c g\u00f3i kh\u00e1c ph\u1ea3i ph\u1ee5 thu\u1ed9c v\u00e0o chi ti\u1ebft tri\u1ec3n khai thay v\u00ec c\u00e1c giao di\u1ec7n \u1ed5n \u0111\u1ecbnh.<\/li>\n<\/ul>\n

                    Tinh ch\u1ec9nh c\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0 m\u1ed1i quan h\u1ec7 \ud83d\udd0d<\/h2>\n

                    \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng ph\u1ee5 thu\u1ed9c l\u00e0 r\u1ea5t quan tr\u1ecdng. S\u1ef1 m\u01a1 h\u1ed3 \u1edf \u0111\u00e2y d\u1eabn \u0111\u1ebfn l\u1ed7i th\u1eddi gian ch\u1ea1y v\u00e0 nh\u1eefng c\u01a1n \u00e1c m\u1ed9ng b\u1ea3o tr\u00ec.<\/p>\n

                    Gi\u1ea3i th\u00edch c\u00e1c lo\u1ea1i ph\u1ee5 thu\u1ed9c \ud83d\udcdd<\/h3>\n

                    Kh\u00f4ng ph\u1ea3i m\u1ecdi ph\u1ee5 thu\u1ed9c n\u00e0o c\u0169ng nh\u01b0 nhau. M\u1ed9t s\u1ed1 m\u1ea1nh h\u01a1n nh\u1eefng c\u00e1i kh\u00e1c.<\/p>\n

                      \n
                    • S\u1eed d\u1ee5ng:<\/strong> Lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t. M\u1ed9t g\u00f3i s\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng c\u1ee7a g\u00f3i kh\u00e1c. Th\u01b0\u1eddng l\u00e0 t\u1ea1m th\u1eddi.<\/li>\n
                    • Nh\u1eadp:<\/strong> M\u1ed9t g\u00f3i nh\u1eadp r\u00f5 r\u00e0ng c\u00e1c \u0111\u1ecbnh ngh\u0129a t\u1eeb g\u00f3i kh\u00e1c. \u0110i\u1ec1u n\u00e0y ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean module.<\/li>\n
                    • Truy c\u1eadp:<\/strong>Truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9. \u0110i\u1ec1u n\u00e0y n\u00ean \u0111\u01b0\u1ee3c tr\u00e1nh thay v\u00ec s\u1eed d\u1ee5ng c\u00e1c giao di\u1ec7n c\u00f4ng khai.<\/li>\n<\/ul>\n

                      X\u1eed l\u00fd v\u00f2ng l\u1eb7p \ud83d\udd04<\/h3>\n

                      C\u00e1c v\u00f2ng ph\u1ee5 thu\u1ed9c l\u00e0 th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t trong thi\u1ebft k\u1ebf g\u00f3i. 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.<\/p>\n

                      \u0110\u1ec3 gi\u1ea3i quy\u1ebft \u0111i\u1ec1u n\u00e0y:<\/p>\n

                        \n
                      1. X\u00e1c \u0111\u1ecbnh c\u00e1c l\u1edbp g\u00e2y ra tham chi\u1ebfu v\u00f2ng.<\/li>\n
                      2. Tr\u00edch xu\u1ea5t logic chung v\u00e0o m\u1ed9t g\u00f3i trung gian m\u1edbi.<\/li>\n
                      3. Cho c\u1ea3 hai g\u00f3i ban \u0111\u1ea7u ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i m\u1edbi thay v\u00ec ph\u1ee5 thu\u1ed9c l\u1eabn nhau.<\/li>\n<\/ol>\n

                        K\u1ef9 thu\u1eadt n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cNguy\u00ean t\u1eafc \u0111\u1ea3o ph\u1ee5 thu\u1ed9c\u201d. N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u00f4-\u0111un c\u1ea5p cao kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c m\u00f4-\u0111un c\u1ea5p th\u1ea5p, m\u00e0 c\u1ea3 hai \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o tr\u1eebu t\u01b0\u1ee3ng.<\/p>\n

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

                        S\u01a1 \u0111\u1ed3 g\u00f3i l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng. Khi ph\u1ea7n m\u1ec1m ph\u00e1t tri\u1ec3n, s\u01a1 \u0111\u1ed3 c\u0169ng ph\u1ea3i ph\u00e1t tri\u1ec3n theo.<\/p>\n

                        Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n cho m\u00f4 h\u00ecnh \ud83d\udcc2<\/h3>\n

                        Gi\u1ed1ng nh\u01b0 m\u00e3 ngu\u1ed3n, c\u00e1c t\u1ec7p m\u00f4 h\u00ecnh n\u00ean \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1c nh\u00f3m theo d\u00f5i c\u00e1c thay \u0111\u1ed5i, quay l\u1ea1i tr\u1ea1ng th\u00e1i tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 hi\u1ec3u \u0111\u01b0\u1ee3c l\u1ecbch s\u1eed c\u1ee7a c\u00e1c quy\u1ebft \u0111\u1ecbnh ki\u1ebfn tr\u00fac.<\/p>\n

                        T\u00edch h\u1ee3p v\u1edbi m\u00e3 ngu\u1ed3n \ud83d\udee0\ufe0f<\/h3>\n

                        M\u1eb7c d\u00f9 h\u01b0\u1edbng d\u1eabn n\u00e0y t\u1eadp trung v\u00e0o thi\u1ebft k\u1ebf th\u1ee7 c\u00f4ng, c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng th\u01b0\u1eddng t\u1ed3n t\u1ea1i \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 t\u1eeb m\u00e3 ngu\u1ed3n. Tuy nhi\u00ean, ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f3 th\u1ec3 g\u00e2y v\u1ea5n \u0111\u1ec1. N\u00f3 th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed9n x\u1ed9n kh\u00f4ng ph\u1ea3n \u00e1nh \u0111\u00fang ki\u1ebfn tr\u00fac logic mong mu\u1ed1n.<\/p>\n

                        C\u1ea7n c\u00f3 s\u1ef1 gi\u00e1m s\u00e1t th\u1ee7 c\u00f4ng \u0111\u1ec3:<\/p>\n

                          \n
                        • Gom c\u00e1c l\u1edbp v\u00e0o c\u00e1c g\u00f3i logic c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp v\u1edbi c\u1ea5u tr\u00fac t\u1ec7p v\u1eadt l\u00fd.<\/li>\n
                        • X\u00e1c \u0111\u1ecbnh c\u00e1c giao di\u1ec7n ch\u01b0a t\u1ed3n t\u1ea1i trong m\u00e3 ngu\u1ed3n.<\/li>\n
                        • T\u00e0i li\u1ec7u c\u00e1c r\u00e0ng bu\u1ed9c ki\u1ebfn tr\u00fac kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y trong m\u00e3 ngu\u1ed3n.<\/li>\n<\/ul>\n

                          V\u00f2ng ki\u1ec3m tra \ud83d\udd04<\/h3>\n

                          Thi\u1ebft l\u1eadp quy tr\u00ecnh ki\u1ec3m tra cho s\u01a1 \u0111\u1ed3. Tr\u01b0\u1edbc b\u1ea5t k\u1ef3 thay \u0111\u1ed5i m\u00e3 ngu\u1ed3n l\u1edbn n\u00e0o, ki\u1ebfn tr\u00fac c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t l\u1ea1i.<\/p>\n

                            \n
                          • T\u00ednh n\u0103ng m\u1edbi c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t g\u00f3i hi\u1ec7n c\u00f3 kh\u00f4ng?<\/li>\n
                          • S\u1ef1 thay \u0111\u1ed5i n\u00e0y c\u00f3 t\u1ea1o ra c\u00e1c ph\u1ee5 thu\u1ed9c m\u1edbi kh\u00f4ng?<\/li>\n
                          • C\u00e1c quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean c\u00f3 nh\u1ea5t qu\u00e1n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c g\u00f3i kh\u00f4ng?<\/li>\n<\/ul>\n

                            Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u1ec1 \u0111\u1eb7t t\u00ean \ud83c\udff7\ufe0f<\/h2>\n

                            C\u00e1c quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean r\u00f5 r\u00e0ng r\u1ea5t quan tr\u1ecdng cho kh\u1ea3 n\u0103ng \u0111\u1ecdc. T\u00ean g\u00f3i n\u00ean m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng v\u00e0 nh\u1ea5t qu\u00e1n.<\/p>\n

                              \n
                            • S\u1eed d\u1ee5ng s\u1ed1 \u00edt ho\u1eb7c s\u1ed1 nhi\u1ec1u m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n:<\/strong>Kh\u00f4ng tr\u1ed9n l\u1eabn \u201cUser\u201d v\u00e0 \u201cUsers\u201d. Ch\u1ecdn m\u1ed9t phong c\u00e1ch v\u00e0 tu\u00e2n theo n\u00f3.<\/li>\n
                            • Tr\u00e1nh vi\u1ebft t\u1eaft:<\/strong>Tr\u1eeb khi l\u00e0 ti\u00eau chu\u1ea9n ng\u00e0nh, h\u00e3y vi\u1ebft \u0111\u1ea7y \u0111\u1ee7 c\u00e1c t\u1eeb. \u201cPkg\u201d \u00edt r\u00f5 r\u00e0ng h\u01a1n \u201cPackage\u201d.<\/li>\n
                            • Ph\u1ea3n \u00e1nh m\u1ee5c \u0111\u00edch:<\/strong>Thay v\u00ec \u201cModule1\u201d, h\u00e3y d\u00f9ng \u201cPaymentProcessing\u201d. T\u00ean ph\u1ea3i gi\u1ea3i th\u00edch ch\u1ee9c n\u0103ng.<\/li>\n
                            • Ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n:<\/strong> \u1ede m\u1ee9c \u0111\u1ed9 c\u00f3 th\u1ec3, c\u0103n ch\u1ec9nh t\u00ean g\u00f3i v\u1edbi c\u1ea5u tr\u00fac th\u01b0 m\u1ee5c \u0111\u1ec3 gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c cho nh\u00e0 ph\u00e1t tri\u1ec3n.<\/li>\n<\/ul>\n

                              Xem x\u00e9t n\u00e2ng cao \ud83d\ude80<\/h2>\n

                              \u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p, c\u00e1c y\u1ebfu t\u1ed1 xem x\u00e9t b\u1ed5 sung s\u1ebd xu\u1ea5t hi\u1ec7n.<\/p>\n

                              G\u00f3i v\u1eadt l\u00fd so v\u1edbi g\u00f3i logic \ud83d\udda5\ufe0f<\/h3>\n

                              Ph\u00e2n bi\u1ec7t gi\u1eefa t\u1ed5 ch\u1ee9c logic v\u00e0 tri\u1ec3n khai v\u1eadt l\u00fd.<\/p>\n

                                \n
                              • Logic:<\/strong> C\u00e1ch m\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac trong t\u00e2m tr\u00ed c\u1ee7a nh\u00e0 ph\u00e1t tri\u1ec3n. T\u1eadp trung v\u00e0o t\u00ednh g\u1eafn k\u1ebft v\u00e0 t\u00e1ch bi\u1ec7t c\u00e1c v\u1ea5n \u0111\u1ec1.<\/li>\n
                              • V\u1eadt l\u00fd:<\/strong> C\u00e1ch m\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai. T\u1eadp trung v\u00e0o \u0111\u01b0\u1eddng d\u1eabn t\u1ec7p, th\u01b0 vi\u1ec7n v\u00e0 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n

                                M\u1eb7c d\u00f9 m\u1ed9t g\u00f3i logic c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u t\u1ec7p v\u1eadt l\u00fd, m\u1ed9t \u0111\u01a1n v\u1ecb tri\u1ec3n khai v\u1eadt l\u00fd c\u00f3 th\u1ec3 t\u00edch h\u1ee3p nhi\u1ec1u g\u00f3i logic. S\u01a1 \u0111\u1ed3 n\u00ean t\u1eadp trung ch\u1ee7 y\u1ebfu v\u00e0o quan \u0111i\u1ec3m logic, v\u00ec n\u00f3 \u1ed5n \u0111\u1ecbnh h\u01a1n theo th\u1eddi gian.<\/p>\n

                                Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \ud83e\udde9<\/h3>\n

                                Thi\u1ebft k\u1ebf c\u00e1c g\u00f3i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n t\u01b0\u01a1ng lai trong t\u00e2m tr\u00ed. M\u00f4-\u0111un n\u00e0y c\u00f3 c\u1ea7n t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng m\u1edbi v\u00e0o n\u0103m t\u1edbi kh\u00f4ng? H\u00e3y \u0111\u1ec3 c\u00e1c giao di\u1ec7n m\u1edf r\u1ed9ng cho kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. S\u1eed d\u1ee5ng c\u00e1c g\u00f3i tr\u1eebu t\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai b\u1edfi nhi\u1ec1u m\u00f4-\u0111un c\u1ee5 th\u1ec3.<\/p>\n

                                T\u00f3m t\u1eaft quy tr\u00ecnh l\u00e0m vi\u1ec7c \ud83d\udd04<\/h2>\n

                                \u0110\u1ec3 t\u00f3m t\u1eaft quy tr\u00ecnh t\u1ea1o s\u01a1 \u0111\u1ed3 g\u00f3i v\u1eefng ch\u1eafc:<\/p>\n

                                  \n
                                1. Ph\u00e2n t\u00edch y\u00eau c\u1ea7u:<\/strong>Hi\u1ec3u r\u00f5 l\u0129nh v\u1ef1c kinh doanh v\u00e0 nhu c\u1ea7u ch\u1ee9c n\u0103ng.<\/li>\n
                                2. X\u00e1c \u0111\u1ecbnh c\u00e1c g\u00f3i:<\/strong>Nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n d\u1ef1a tr\u00ean t\u00ednh g\u1eafn k\u1ebft.<\/li>\n
                                3. B\u1ea3n \u0111\u1ed3 c\u00e1c ph\u1ee5 thu\u1ed9c:<\/strong>V\u1ebd c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 ki\u1ec3m tra chu tr\u00ecnh.<\/li>\n
                                4. Tinh ch\u1ec9nh c\u1ea5u tr\u00fac:<\/strong>\u00c1p d\u1ee5ng l\u1edbp v\u00e0 th\u1ee9 b\u1eadc.<\/li>\n
                                5. T\u00e0i li\u1ec7u giao di\u1ec7n:<\/strong>X\u00e1c \u0111\u1ecbnh c\u00e1c h\u1ee3p \u0111\u1ed3ng c\u00f4ng khai.<\/li>\n
                                6. Xem x\u00e9t v\u00e0 x\u00e1c minh:<\/strong>Ki\u1ec3m tra theo c\u00e1c quy t\u1eafc ki\u1ebfn tr\u00fac.<\/li>\n
                                7. Duy tr\u00ec:<\/strong>C\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n.<\/li>\n<\/ol>\n

                                  Tu\u00e2n theo quy tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh k\u1ebft qu\u1ea3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf \u0111\u00e1ng tin c\u1eady cho qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n. N\u00f3 gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3, \u0111\u1ecbnh h\u01b0\u1edbng c\u00e1c ti\u00eau chu\u1ea9n l\u1eadp tr\u00ecnh v\u00e0 th\u00fac \u0111\u1ea9y giao ti\u1ebfp trong to\u00e0n \u0111\u1ed9i.<\/p>\n

                                  Suy ngh\u0129 cu\u1ed1i c\u00f9ng v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a \ud83c\udfaf<\/h2>\n

                                  S\u1ef1 n\u1ed7 l\u1ef1c b\u1ecf ra \u0111\u1ec3 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac t\u1ed1t s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch trong c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n v\u00e0 b\u1ea3o tr\u00ec. N\u00f3 cung c\u1ea5p m\u1ed9t t\u1eeb v\u1ef1ng chung cho \u0111\u1ed9i nh\u00f3m v\u00e0 m\u1ed9t l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ec7 th\u1ed1ng. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc v\u1ec1 t\u00ednh g\u1eafn k\u1ebft, \u0111\u1ed9 li\u00ean k\u1ebft v\u00e0 t\u00e0i li\u1ec7u r\u00f5 r\u00e0ng, c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c h\u1ec7 th\u1ed1ng b\u1ec1n b\u1ec9 v\u00e0 linh ho\u1ea1t.<\/p>\n

                                  H\u00e3y nh\u1edb r\u1eb1ng s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 suy ngh\u0129, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea7u ra. S\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c ph\u01b0\u01a1ng \u00e1n thi\u1ebft k\u1ebf v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n tr\u01b0\u1edbc khi vi\u1ebft b\u1ea5t k\u1ef3 d\u00f2ng m\u00e3 n\u00e0o. C\u00e1ch ti\u1ebfp c\u1eadn ch\u1ee7 \u0111\u1ed9ng n\u00e0y d\u1eabn \u0111\u1ebfn ph\u1ea7n m\u1ec1m ch\u1ea5t l\u01b0\u1ee3ng cao h\u01a1n v\u00e0 \u00edt b\u1ea5t ng\u1edd h\u01a1n trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                  Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o vi\u1ec7c giao ti\u1ebfp r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c b\u00ean li\u00ean quan, nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 ng\u01b0\u1eddi b\u1ea3o tr\u00ec. Trung t\u00e2m c\u1ee7a vi\u1ec7c…<\/p>\n","protected":false},"author":1,"featured_media":1875,"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: Thi\u1ebft k\u1ebf v\u00e0 c\u1ea5u tr\u00fac \ud83d\udce6","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 g\u00f3i UML hi\u1ec7u qu\u1ea3. 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