{"id":117,"date":"2026-04-02T09:05:52","date_gmt":"2026-04-02T09:05:52","guid":{"rendered":"https:\/\/www.go-notes.com\/vn\/converting-specifications-to-uml-class-diagrams\/"},"modified":"2026-04-02T09:05:52","modified_gmt":"2026-04-02T09:05:52","slug":"converting-specifications-to-uml-class-diagrams","status":"publish","type":"post","link":"https:\/\/www.go-notes.com\/vn\/converting-specifications-to-uml-class-diagrams\/","title":{"rendered":"T\u1eeb V\u0103n b\u1ea3n \u0111\u1ebfn S\u01a1 \u0111\u1ed3: Chuy\u1ec3n \u0111\u1ed5i C\u00e1c \u0110\u1eb7c t\u1ea3 th\u00e0nh S\u01a1 \u0111\u1ed3 L\u1edbp UML"},"content":{"rendered":"

Ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u00fd t\u01b0\u1edfng tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh c\u00e1c c\u1ea5u tr\u00fac c\u1ee5 th\u1ec3. M\u1ed9t trong nh\u1eefng b\u01b0\u1edbc chuy\u1ec3n quan tr\u1ecdng nh\u1ea5t trong qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c chuy\u1ec3n t\u1eeb c\u00e1c \u0111\u1eb7c t\u1ea3 b\u1eb1ng ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean sang c\u00e1c m\u00f4 h\u00ecnh tr\u1ef1c quan. C\u1ee5 th\u1ec3, vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i c\u00e1c y\u00eau c\u1ea7u d\u1ef1a tr\u00ean v\u0103n b\u1ea3n th\u00e0nh m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp UML<\/strong>gi\u00fap c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n h\u00ecnh dung c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi vi\u1ebft b\u1ea5t k\u1ef3 d\u00f2ng m\u00e3 n\u00e0o. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap l\u1ea5p \u0111\u1ea7y kho\u1ea3ng c\u00e1ch gi\u1eefa nh\u1eefng g\u00ec c\u00e1c b\u00ean li\u00ean quan mong mu\u1ed1n v\u00e0 c\u00e1ch h\u1ec7 th\u1ed1ng ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

Nhi\u1ec1u nh\u00f3m g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c th\u1ef1c hi\u1ec7n s\u1ef1 chuy\u1ec3n \u0111\u1ed5i n\u00e0y. V\u0103n b\u1ea3n th\u01b0\u1eddng mang t\u00ednh m\u01a1 h\u1ed3, trong khi s\u01a1 \u0111\u1ed3 l\u1ea1i \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh x\u00e1c \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u0111\u1eb7c t\u1ea3 th\u00e0nh m\u00f4 h\u00ecnh l\u1edbp v\u1eefng ch\u1eafc. Ch\u00fang ta s\u1ebd xem x\u00e9t c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c th\u1ef1c th\u1ec3, x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 v\u00e0 \u00e1nh x\u1ea1 c\u00e1c r\u00e0ng bu\u1ed9c m\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng c\u1ee5 b\u00ean ngo\u00e0i hay c\u00e1c thu\u1eadt ng\u1eef s\u00e1o r\u1ed7ng. Tr\u1ecdng t\u00e2m v\u1eabn n\u1eb1m \u1edf t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n logic c\u1ee7a thi\u1ebft k\u1ebf.<\/p>\n

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

\ud83e\udde9 T\u1ea1i sao Vi\u1ec7c Chuy\u1ec3n T\u1eeb V\u0103n b\u1ea3n Sang S\u01a1 \u0111\u1ed3 L\u00e0 Quan Tr\u1ecdng<\/h2>\n

C\u00e1c \u0111\u1eb7c t\u1ea3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng v\u0103n xu\u00f4i, c\u00e1c c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c t\u00e0i li\u1ec7u y\u00eau c\u1ea7u. M\u1eb7c d\u00f9 c\u00e1c \u0111\u1ecbnh d\u1ea1ng n\u00e0y r\u1ea5t t\u1ed1t \u0111\u1ec3 ghi nh\u1eadn m\u1ee5c \u0111\u00edch, nh\u01b0ng ch\u00fang thi\u1ebfu s\u1ef1 r\u00f5 r\u00e0ng v\u1ec1 c\u1ea5u tr\u00fac c\u1ea7n thi\u1ebft cho vi\u1ec7c tri\u1ec3n khai. M\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp UML<\/strong>ch\u1ee9c n\u0103ng nh\u01b0 m\u1ed9t b\u1ea3n v\u1ebd s\u01a1 b\u1ed9. N\u00f3 x\u00e1c \u0111\u1ecbnh:<\/p>\n

    \n
  • C\u00e1c l\u1edbp<\/strong>ri\u00eang bi\u1ec7t t\u1ed3n t\u1ea1i trong l\u0129nh v\u1ef1c.<\/li>\n
  • C\u00e1c thu\u1ed9c t\u00ednh<\/strong>v\u00e0 d\u1eef li\u1ec7u m\u00e0 m\u1ed7i l\u1edbp l\u01b0u tr\u1eef.<\/li>\n
  • C\u00e1c m\u1ed1i quan h\u1ec7<\/strong>gi\u1eefa c\u00e1c l\u1edbp n\u00e0y.<\/li>\n
  • C\u00e1c r\u00e0ng bu\u1ed9c<\/strong>\u0111i\u1ec1u ch\u1ec9nh lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n

    Kh\u00f4ng c\u00f3 bi\u1ec3u di\u1ec5n tr\u1ef1c quan n\u00e0y, c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 hi\u1ec3u y\u00eau c\u1ea7u theo c\u00e1ch kh\u00e1c nhau. M\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 coi m\u1ed9t “Ng\u01b0\u1eddi d\u00f9ng” l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u01a1n gi\u1ea3n, trong khi ng\u01b0\u1eddi kh\u00e1c l\u1ea1i m\u00f4 h\u00ecnh h\u00f3a n\u00f3 nh\u01b0 m\u1ed9t th\u1ef1c th\u1ec3 ph\u1ee9c t\u1ea1p v\u1edbi logic x\u00e1c th\u1ef1c. M\u1ed9t s\u01a1 \u0111\u1ed3 chu\u1ea9n h\u00f3a \u0111\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u chia s\u1ebb c\u00f9ng m\u1ed9t m\u00f4 h\u00ecnh t\u01b0 duy v\u1ec1 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng.<\/p>\n

    \ud83d\udcc4 Hi\u1ec3u R\u00f5 C\u00e1c \u0110\u1eb7c T\u1ea3 \u0110\u1ea7u V\u00e0o C\u1ee7a B\u1ea1n<\/h2>\n

    Tr\u01b0\u1edbc khi v\u1ebd c\u00e1c \u0111\u01b0\u1eddng v\u00e0 h\u00ecnh h\u1ed9p, b\u1ea1n ph\u1ea3i ph\u00e2n t\u00edch k\u1ef9 l\u01b0\u1ee1ng t\u00e0i li\u1ec7u ngu\u1ed3n. C\u00e1c \u0111\u1eb7c t\u1ea3 c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n

      \n
    • Y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng:<\/strong>M\u00f4 t\u1ea3 nh\u1eefng g\u00ec h\u1ec7 th\u1ed1ng c\u1ea7n ph\u1ea3i l\u00e0m.<\/li>\n
    • Y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng:<\/strong>C\u00e1c r\u00e0ng bu\u1ed9c nh\u01b0 hi\u1ec7u su\u1ea5t, b\u1ea3o m\u1eadt ho\u1eb7c kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/li>\n
    • M\u00f4 h\u00ecnh mi\u1ec1n:<\/strong>T\u00e0i li\u1ec7u hi\u1ec7n c\u00f3 m\u00f4 t\u1ea3 b\u1ed1i c\u1ea3nh kinh doanh.<\/li>\n
    • Nh\u1eefng c\u00e2u chuy\u1ec7n m\u00f4 t\u1ea3 t\u01b0\u01a1ng t\u00e1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng:<\/strong>Nh\u1eefng c\u00e2u chuy\u1ec7n m\u00f4 t\u1ea3 t\u01b0\u01a1ng t\u00e1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n

      \u0110\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 \u00fd ngh\u0129a, h\u00e3y \u0111\u1ecdc c\u00e1c t\u00e0i li\u1ec7u n\u00e0y v\u1edbi s\u1ef1 t\u1eadp trung c\u1ee5 th\u1ec3 v\u00e0o danh t\u1eeb v\u00e0 \u0111\u1ed9ng t\u1eeb. Nh\u1eefng th\u00e0nh ph\u1ea7n ng\u1eef ph\u00e1p n\u00e0y th\u01b0\u1eddng \u00e1nh x\u1ea1 tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp. Tuy nhi\u00ean, ng\u1eef c\u1ea3nh l\u00e0 vua. T\u1eeb “Ng\u00e2n h\u00e0ng” c\u00f3 th\u1ec3 \u00e1m ch\u1ec9 m\u1ed9t t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh (m\u1ed9t l\u1edbp) ho\u1eb7c m\u1ed9t v\u1ecb tr\u00ed v\u1eadt l\u00fd (m\u1ed9t thu\u1ed9c t\u00ednh). Hi\u1ec3u r\u00f5 ng\u1eef c\u1ea3nh l\u0129nh v\u1ef1c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a ch\u00ednh x\u00e1c.<\/p>\n

      \ud83c\udfd7\ufe0f C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp UML<\/h2>\n

      S\u01a1 \u0111\u1ed3 l\u1edbp bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 \u0111\u1ea1i di\u1ec7n cho c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng. Khi chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00e0nh s\u01a1 \u0111\u1ed3, b\u1ea1n th\u1ef1c ch\u1ea5t \u0111ang t\u00ecm ki\u1ebfm nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y:<\/p>\n

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      • L\u1edbp:<\/strong>M\u1ed9t b\u1ea3n v\u1ebd ph\u00e1c th\u1ea3o cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi danh t\u1eeb trong v\u0103n b\u1ea3n.<\/li>\n
      • Thu\u1ed9c t\u00ednh:<\/strong>D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong m\u1ed9t l\u1edbp. Th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng t\u00ednh t\u1eeb ho\u1eb7c c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3.<\/li>\n
      • Thao t\u00e1c:<\/strong>C\u00e1c ph\u01b0\u01a1ng th\u1ee9c ho\u1eb7c h\u00e0m. \u0110\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c \u0111\u1ed9ng t\u1eeb m\u00f4 t\u1ea3 h\u00e0nh \u0111\u1ed9ng.<\/li>\n
      • M\u1ed1i quan h\u1ec7:<\/strong>C\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c l\u1edbp. \u0110\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c \u0111\u1ed9ng t\u1eeb m\u00f4 t\u1ea3 t\u01b0\u01a1ng t\u00e1c.<\/li>\n
      • \u0110a d\u1ea1ng:<\/strong>S\u1ed1 l\u01b0\u1ee3ng tham gia v\u00e0o m\u1ed9t m\u1ed1i quan h\u1ec7. \u0110\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c t\u1eeb ch\u1ec9 l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n

        M\u1ed7i th\u00e0nh ph\u1ea7n n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c suy lu\u1eadn m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd t\u1eeb v\u0103n b\u1ea3n. \u0110o\u00e1n m\u00f2 s\u1ebd d\u1eabn \u0111\u1ebfn n\u1ee3 k\u1ef9 thu\u1eadt trong giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n sau n\u00e0y. \u0110\u1ed9 ch\u00ednh x\u00e1c \u1edf giai \u0111o\u1ea1n n\u00e0y gi\u00fap ng\u0103n ng\u1eeba vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac t\u1ed1n k\u00e9m.<\/p>\n

        \ud83d\udd04 Ph\u01b0\u01a1ng ph\u00e1p chuy\u1ec3n \u0111\u1ed5i t\u1eebng b\u01b0\u1edbc<\/h2>\n

        Chuy\u1ec3n \u0111\u1ed5i c\u00e1c y\u00eau c\u1ea7u th\u00e0nh s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng. H\u00e3y tu\u00e2n theo c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

        1. X\u00e1c \u0111\u1ecbnh c\u00e1c l\u1edbp ti\u1ec1m n\u0103ng (Tr\u00edch xu\u1ea5t danh t\u1eeb)<\/h3>\n

        Duy\u1ec7t qua t\u00e0i li\u1ec7u y\u00eau c\u1ea7u \u0111\u1ec3 t\u00ecm c\u00e1c danh t\u1eeb. \u0110\u00e2y l\u00e0 c\u00e1c l\u1edbp ti\u1ec1m n\u0103ng c\u1ee7a b\u1ea1n. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i danh t\u1eeb n\u00e0o c\u0169ng tr\u1edf th\u00e0nh l\u1edbp. Lo\u1ea1i b\u1ecf c\u00e1c tr\u01b0\u1eddng h\u1ee3p:<\/p>\n

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        • Danh t\u1eeb th\u00f4ng th\u01b0\u1eddng qu\u00e1 chung chung (v\u00ed d\u1ee5: \u201c\u0110\u1ed3 v\u1eadt\u201d, \u201c\u0110\u1ed1i t\u01b0\u1ee3ng\u201d).<\/li>\n
        • Danh t\u1eeb \u0111\u1ea1i di\u1ec7n cho thu\u1ed9c t\u00ednh c\u1ee7a m\u1ed9t l\u1edbp kh\u00e1c (v\u00ed d\u1ee5: \u201cM\u00e0u s\u1eafc\u201d th\u01b0\u1eddng l\u00e0 thu\u1ed9c t\u00ednh c\u1ee7a \u201cXe h\u01a1i\u201d, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1edbp).<\/li>\n
        • C\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 th\u1eddi gian (v\u00ed d\u1ee5: \u201cTh\u1eddi gian\u201d, \u201cNg\u00e0y\u201d th\u01b0\u1eddng l\u00e0 ki\u1ec3u nguy\u00ean th\u1ee7y).<\/li>\n<\/ul>\n

          V\u00ed d\u1ee5:<\/strong> N\u1ebfu v\u0103n b\u1ea3n n\u00f3i: \u201cM\u1ed9t kh\u00e1ch h\u00e0ng \u0111\u1eb7t m\u1ed9t \u0111\u01a1n h\u00e0ng\u201d, th\u00ec \u201cKh\u00e1ch h\u00e0ng\u201d v\u00e0 \u201c\u0110\u01a1n h\u00e0ng\u201d l\u00e0 nh\u1eefng \u1ee9ng c\u1eed vi\u00ean m\u1ea1nh cho c\u00e1c l\u1edbp.<\/p>\n

          2. X\u00e1c \u0111\u1ecbnh thu\u1ed9c t\u00ednh (Nh\u1eadn di\u1ec7n thu\u1ed9c t\u00ednh)<\/h3>\n

          Sau khi x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ed9t l\u1edbp, h\u00e3y t\u00ecm c\u00e1c chi ti\u1ebft m\u00f4 t\u1ea3 n\u00f3. C\u00e1c thu\u1ed9c t\u00ednh \u0111\u1ea1i di\u1ec7n cho tr\u1ea1ng th\u00e1i c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. H\u00e3y t\u00ecm:<\/p>\n

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          • C\u00e1c ki\u1ec3u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c n\u00eau trong v\u0103n b\u1ea3n (v\u00ed d\u1ee5: \u201cs\u1ed1 nguy\u00ean\u201d, \u201cchu\u1ed7i\u201d, \u201clogic\u201d).<\/li>\n
          • C\u00e1c c\u1ee5m t\u1eeb m\u00f4 t\u1ea3 (v\u00ed d\u1ee5: \u201c\u0110\u01a1n h\u00e0ng c\u00f3 m\u1ed9t ID duy nh\u1ea5t\u201d).<\/li>\n
          • C\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 d\u1eef li\u1ec7u (v\u00ed d\u1ee5: \u201cEmail ph\u1ea3i h\u1ee3p l\u1ec7\u201d).<\/li>\n<\/ul>\n

            C\u00e1c thu\u1ed9c t\u00ednh n\u00ean \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 m\u1eb7c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 tr\u1eeb khi c\u00f3 l\u00fd do r\u00f5 r\u00e0ng \u0111\u1ec3 ch\u00fang c\u00f4ng khai. T\u00ednh \u0111\u00f3ng g\u00f3i n\u00e0y l\u00e0 nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i c\u1ee7a thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n

            3. X\u00e1c \u0111\u1ecbnh c\u00e1c thao t\u00e1c (B\u1ea3n \u0111\u1ed3 h\u00e0nh \u0111\u1ed9ng)<\/h3>\n

            C\u00e1c thao t\u00e1c \u0111\u1ea1i di\u1ec7n cho h\u00e0nh vi c\u1ee7a l\u1edbp. Ch\u00fang \u0111\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c \u0111\u1ed9ng t\u1eeb trong t\u00e0i li\u1ec7u y\u00eau c\u1ea7u. Tuy nhi\u00ean, h\u00e3y c\u1ea9n th\u1eadn \u0111\u1eebng m\u00f4 h\u00ecnh h\u00f3a to\u00e0n b\u1ed9 h\u00e0nh vi h\u1ec7 th\u1ed1ng \u1edf \u0111\u00e2y. S\u01a1 \u0111\u1ed3 l\u1edbp t\u1eadp trung v\u00e0o c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 h\u00e0nh vi, ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u00e0nh vi b\u1ea3n th\u00e2n.<\/p>\n

              \n
            • T\u00ecm c\u00e1c \u0111\u1ed9ng t\u1eeb ng\u1ee5 \u00fd kh\u1ea3 n\u0103ng c\u1ee7a l\u1edbp.<\/li>\n
            • X\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i (v\u00ed d\u1ee5 nh\u01b0 calculateTotal()<\/code>).<\/li>\n
            • X\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c truy xu\u1ea5t tr\u1ea1ng th\u00e1i (v\u00ed d\u1ee5 nh\u01b0 getCustomerName()<\/code>).<\/li>\n<\/ul>\n

              4. B\u1ea3n \u0111\u1ed3 c\u00e1c m\u1ed1i quan h\u1ec7 (Ph\u00e2n t\u00edch k\u1ebft n\u1ed1i)<\/h3>\n

              \u0110\u00e2y l\u00e0 ph\u1ea7n ph\u1ee9c t\u1ea1p nh\u1ea5t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i. C\u00e1c m\u1ed1i quan h\u1ec7 x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c l\u1edbp t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. V\u0103n b\u1ea3n th\u01b0\u1eddng ch\u1ee9a c\u00e1c gi\u1edbi t\u1eeb ho\u1eb7c \u0111\u1ed9ng t\u1eeb ch\u1ec9 ra nh\u1eefng li\u00ean k\u1ebft n\u00e0y.<\/p>\n

                \n
              • Li\u00ean k\u1ebft:<\/strong>K\u1ebft n\u1ed1i chung. \u201cM\u1ed9t Ng\u01b0\u1eddi d\u00f9ng c\u00f3<\/em> m\u1ed9t \u0110\u1ecba ch\u1ec9\u201d.<\/li>\n
              • T\u1ed5 h\u1ee3p:<\/strong>Quy\u1ec1n s\u1edf h\u1eefu y\u1ebfu. \u201cM\u1ed9t Ph\u00f2ng ban c\u00f3<\/em> Nh\u00e2n vi\u00ean\u201d (Nh\u00e2n vi\u00ean c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n Ph\u00f2ng ban).<\/li>\n
              • Th\u00e0nh ph\u1ea7n:<\/strong>Quy\u1ec1n s\u1edf h\u1eefu m\u1ea1nh. \u201cM\u1ed9t Ng\u00f4i nh\u00e0 c\u00f3<\/em> Ph\u00f2ng\u201d (Ph\u00f2ng kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 Ng\u00f4i nh\u00e0).<\/li>\n
              • K\u1ebf th\u1eeba:<\/strong>Chuy\u00ean bi\u1ec7t h\u00f3a. \u201cM\u1ed9t Sinh vi\u00ean l\u00e0 m\u1ed9t<\/em> Ng\u01b0\u1eddi\u201d.<\/li>\n<\/ul>\n

                \ud83d\udd17 Ph\u00e2n t\u00edch c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 b\u1ed9i s\u1ed1<\/h2>\n

                C\u00e1c m\u00f4 t\u1ea3 v\u0103n b\u1ea3n hi\u1ebfm khi x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c b\u1ed9i s\u1ed1. B\u1ea1n ph\u1ea3i suy lu\u1eadn \u0111i\u1ec1u n\u00e0y d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc kinh doanh. B\u1ed9i s\u1ed1 x\u00e1c \u0111\u1ecbnh c\u00f3 bao nhi\u00eau th\u1ec3 hi\u1ec7n c\u1ee7a m\u1ed9t l\u1edbp li\u00ean quan \u0111\u1ebfn m\u1ed9t l\u1edbp kh\u00e1c.<\/p>\n

                C\u00e1c r\u00e0ng bu\u1ed9c b\u1ed9i s\u1ed1 ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

                  \n
                • M\u1ed9t (1):<\/strong>Ch\u00ednh x\u00e1c m\u1ed9t th\u1ec3 hi\u1ec7n.<\/li>\n
                • Kh\u00f4ng ho\u1eb7c m\u1ed9t (0..1):<\/strong>K\u1ebft n\u1ed1i t\u00f9y ch\u1ecdn.<\/li>\n
                • M\u1ed9t ho\u1eb7c nhi\u1ec1u h\u01a1n (1..*):<\/strong>K\u1ebft n\u1ed1i b\u1eaft bu\u1ed9c m\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n.<\/li>\n
                • Kh\u00f4ng ho\u1eb7c nhi\u1ec1u h\u01a1n (0..*):<\/strong>K\u1ebft n\u1ed1i t\u00f9y ch\u1ecdn m\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n.<\/li>\n<\/ul>\n

                  Ph\u00e2n t\u00edch v\u00ed d\u1ee5:<\/strong><\/p>\n

                  Xem x\u00e9t c\u00e2u sau: \u201cM\u1ed9t cu\u1ed1n s\u00e1ch th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u01b0\u1ee3n b\u1edfi nhi\u1ec1u th\u00e0nh vi\u00ean, nh\u01b0ng m\u1ed9t th\u00e0nh vi\u00ean c\u00f3 th\u1ec3 m\u01b0\u1ee3n nhi\u1ec1u cu\u1ed1n s\u00e1ch c\u00f9ng l\u00fac. Tuy nhi\u00ean, m\u1ed9t b\u1ea3n sao c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t cu\u1ed1n s\u00e1ch ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u01b0\u1ee3n b\u1edfi m\u1ed9t ng\u01b0\u1eddi t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.\u201d<\/p>\n

                    \n
                  • L\u1edbp A:<\/strong>S\u00e1ch<\/li>\n
                  • L\u1edbp B:<\/strong>Th\u00e0nh vi\u00ean<\/li>\n
                  • M\u1ed1i quan h\u1ec7:<\/strong>M\u01b0\u1ee3n<\/li>\n
                  • S\u1ed1 l\u01b0\u1ee3ng:<\/strong>Nhi\u1ec1u-\u0111\u1ebfn-nhi\u1ec1u (0..* \u0111\u1ebfn 0..*)<\/li>\n<\/ul>\n

                    L\u01b0u \u00fd s\u1ef1 tinh t\u1ebf. R\u00e0ng bu\u1ed9c \u201cb\u1ea3n sao c\u1ee5 th\u1ec3\u201d c\u00f3 th\u1ec3 y\u00eau c\u1ea7u m\u1ed9t l\u1edbp ri\u00eang bi\u1ec7t nh\u01b0 \u201cM\u01b0\u1ee3n\u201d \u0111\u1ec3 x\u1eed l\u00fd tr\u1ea1ng th\u00e1i giao d\u1ecbch, thay v\u00ec m\u1ed9t li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp gi\u1eefa S\u00e1ch v\u00e0 Th\u00e0nh vi\u00ean. \u0110\u00e2y l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh quan tr\u1ecdng khi chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n th\u00e0nh s\u01a1 \u0111\u1ed3.<\/p>\n

                    \ud83e\uddec X\u1eed l\u00fd k\u1ebf th\u1eeba v\u00e0 \u0111a h\u00ecnh<\/h2>\n

                    C\u00e1c t\u00e0i li\u1ec7u th\u01b0\u1eddng m\u00f4 t\u1ea3 c\u00e1c danh m\u1ee5c v\u00e0 c\u00e1c danh m\u1ee5c con. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y s\u1ef1 k\u1ebf th\u1eeba. H\u00e3y t\u00ecm c\u00e1c c\u1ee5m t\u1eeb nh\u01b0 \u201cl\u00e0 m\u1ed9t lo\u1ea1i c\u1ee7a,\u201d \u201c\u0111\u1eb7c h\u00f3a t\u1eeb,\u201d ho\u1eb7c \u201ck\u1ebf th\u1eeba t\u1eeb.\u201d<\/p>\n

                      \n
                    • T\u1ed5ng qu\u00e1t h\u00f3a:<\/strong>L\u1edbp cha \u0111\u1ea1i di\u1ec7n cho c\u00e1c thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c chung.<\/li>\n
                    • \u0110\u1eb7c h\u00f3a:<\/strong>L\u1edbp con th\u00eam c\u00e1c thu\u1ed9c t\u00ednh c\u1ee5 th\u1ec3 ho\u1eb7c ghi \u0111\u00e8 c\u00e1c thao t\u00e1c.<\/li>\n<\/ul>\n

                      C\u1ea3nh b\u00e1o:<\/strong>Kh\u00f4ng t\u1ea1o c\u00e1c c\u1ea5u tr\u00fac k\u1ebf th\u1eeba tr\u1eeb khi c\u00f3 m\u1ed1i quan h\u1ec7 \u201cl\u00e0 m\u1ed9t\u201d r\u00f5 r\u00e0ng. C\u00e1c m\u1ed1i quan h\u1ec7 \u201cc\u00f3 m\u1ed9t\u201d n\u00ean \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a b\u1eb1ng li\u00ean k\u1ebft, ch\u1ee9 kh\u00f4ng ph\u1ea3i k\u1ebf th\u1eeba. V\u00ed d\u1ee5, m\u1ed9t \u201cXe h\u01a1i\u201d c\u00f3 m\u1ed9t \u201c\u0110\u1ed9ng c\u01a1,\u201d nh\u01b0ng m\u1ed9t \u201cXe h\u01a1i\u201d kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u201c\u0110\u1ed9ng c\u01a1.\u201d<\/p>\n

                      \u2705 Ki\u1ec3m tra x\u00e1c th\u1ef1c v\u00e0 nh\u1ea5t qu\u00e1n<\/h2>\n

                      Sau khi s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c ph\u00e1c th\u1ea3o, b\u1ea1n ph\u1ea3i ki\u1ec3m tra l\u1ea1i n\u00f3 v\u1edbi v\u0103n b\u1ea3n g\u1ed1c. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00f4ng c\u00f3 g\u00ec b\u1ecb b\u1ecf s\u00f3t v\u00e0 kh\u00f4ng c\u00f3 gi\u1ea3 \u0111\u1ecbnh n\u00e0o \u0111\u01b0\u1ee3c \u0111\u01b0a ra sai l\u1ec7ch.<\/p>\n

                        \n
                      • T\u00ednh truy xu\u1ea5t \u0111\u01b0\u1ee3c:<\/strong>M\u1ed7i l\u1edbp trong s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y trong y\u00eau c\u1ea7u kh\u00f4ng?<\/li>\n
                      • T\u00ednh \u0111\u1ea7y \u0111\u1ee7:<\/strong>T\u1ea5t c\u1ea3 c\u00e1c m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong v\u0103n b\u1ea3n c\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n tr\u1ef1c quan kh\u00f4ng?<\/li>\n
                      • M\u00e2u thu\u1eabn:<\/strong>S\u01a1 \u0111\u1ed3 c\u00f3 cho ph\u00e9p m\u1ed9t tr\u1ea1ng th\u00e1i m\u00e0 v\u0103n b\u1ea3n c\u1ea5m kh\u00f4ng? (v\u00ed d\u1ee5: V\u0103n b\u1ea3n n\u00f3i \u201c\u0110\u01a1n h\u00e0ng ph\u1ea3i c\u00f3 \u0111\u1ecba ch\u1ec9,\u201d S\u01a1 \u0111\u1ed3 cho ph\u00e9p \u0111\u1ecba ch\u1ec9 r\u1ed7ng).<\/li>\n
                      • \u0110\u1ed9 chi ti\u1ebft:<\/strong>C\u00e1c l\u1edbp qu\u00e1 l\u1edbn hay qu\u00e1 nh\u1ecf? \u0110\u1ed9 chi ti\u1ebft \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec.<\/li>\n<\/ul>\n

                        Giai \u0111o\u1ea1n x\u00e1c minh n\u00e0y kh\u00f4ng nh\u1eb1m m\u1ee5c \u0111\u00edch ho\u00e0n h\u1ea3o; n\u00f3 nh\u1eb1m m\u1ee5c \u0111\u00edch \u0111\u1ed3ng b\u1ed9 h\u00f3a. N\u00f3 \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh tr\u1ef1c quan \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t h\u1ee3p \u0111\u1ed3ng \u0111\u00e1ng tin c\u1eady cho \u0111\u1ed9i ph\u00e1t tri\u1ec3n.<\/p>\n

                        \ud83d\udcca B\u1ea3n \u0111\u1ed3 c\u00e1c ch\u1ec9 b\u00e1o v\u0103n b\u1ea3n sang c\u00e1c th\u00e0nh ph\u1ea7n UML<\/h2>\n

                        S\u1eed d\u1ee5ng b\u1ea3ng sau nh\u01b0 m\u1ed9t h\u01b0\u1edbng d\u1eabn tham kh\u1ea3o nhanh khi ph\u00e2n t\u00edch v\u0103n b\u1ea3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n s\u01a1 \u0111\u1ed3.<\/p>\n\n\n\n\n\n\n\n\n\n\n
                        C\u1ee5m t\u1eeb \/ Kh\u00e1i ni\u1ec7m v\u0103n b\u1ea3n<\/th>\nTh\u00e0nh ph\u1ea7n UML<\/th>\nV\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n
                        Danh t\u1eeb<\/strong> (v\u00ed d\u1ee5: Kh\u00e1ch h\u00e0ng, H\u00f3a \u0111\u01a1n)<\/td>\nL\u1edbp<\/strong><\/td>\nclass Kh\u00e1chHang { }<\/code><\/td>\n<\/tr>\n
                        T\u00ednh t\u1eeb \/ Ki\u1ec3u d\u1eef li\u1ec7u<\/strong> (v\u00ed d\u1ee5: email, gi\u00e1)<\/td>\nThu\u1ed9c t\u00ednh<\/strong><\/td>\n- email: Chu\u1ed7i<\/code><\/td>\n<\/tr>\n
                        \u0110\u1ed9ng t\u1eeb<\/strong> (v\u00ed d\u1ee5: t\u00ednh to\u00e1n, l\u01b0u)<\/td>\nThao t\u00e1c<\/strong><\/td>\n+ t\u00ednhT\u1ed5ng(): float<\/code><\/td>\n<\/tr>\n
                        \u201cC\u00f3 m\u1ed9t\u201d \/ \u201cCh\u1ee9a\u201d<\/strong><\/td>\nLi\u00ean k\u1ebft \/ Th\u00e0nh ph\u1ea7n<\/strong><\/td>\n\u0110\u01b0\u1eddng n\u1ed1i c\u00f3 h\u00ecnh kim c\u01b0\u01a1ng ho\u1eb7c m\u0169i t\u00ean h\u1edf<\/td>\n<\/tr>\n
                        \u201cL\u00e0 m\u1ed9t\u201d \/ \u201cLo\u1ea1i con c\u1ee7a\u201d<\/strong><\/td>\nK\u1ebf th\u1eeba<\/strong><\/td>\n\u0110\u01b0\u1eddng n\u1ed1i v\u1edbi tam gi\u00e1c r\u1ed7ng<\/td>\n<\/tr>\n
                        C\u00e1c l\u01b0\u1ee3ng t\u1eeb<\/strong> (v\u00ed d\u1ee5: m\u1ed9t, nhi\u1ec1u, t\u1ea5t c\u1ea3)<\/td>\n\u0110a d\u1ea1ng<\/strong><\/td>\n1<\/code>, 0..*<\/code>, 1..3<\/code><\/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 nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 kinh nghi\u1ec7m c\u0169ng c\u00f3 th\u1ec3 m\u1eafc sai l\u1ea7m khi d\u1ecbch v\u0103n b\u1ea3n. H\u00e3y l\u01b0u \u00fd nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn n\u00e0y.<\/p>\n

                          \n
                        • M\u00f4 h\u00ecnh h\u00f3a qu\u00e1 m\u1ee9c:<\/strong> T\u1ea1o m\u1ed9t l\u1edbp cho m\u1ed7i danh t\u1eeb, k\u1ec3 c\u1ea3 \u0111\u1ed9ng t\u1eeb ho\u1eb7c tr\u1ea1ng th\u00e1i t\u1ea1m th\u1eddi. Ch\u1ec9 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c th\u1ef1c th\u1ec3 c\u00f3 tr\u1ea1ng th\u00e1i b\u1ec1n v\u1eefng.<\/li>\n
                        • B\u1ecf qua c\u00e1c r\u00e0ng bu\u1ed9c:<\/strong> Kh\u00f4ng bi\u1ec3u di\u1ec5n c\u00e1c tr\u01b0\u1eddng b\u1eaft bu\u1ed9c ho\u1eb7c c\u00e1c r\u00e0ng bu\u1ed9c duy nh\u1ea5t. S\u01a1 \u0111\u1ed3 ph\u1ea3i ph\u1ea3n \u00e1nh c\u00e1c quy t\u1eafc c\u1ee7a mi\u1ec1n.<\/li>\n
                        • Tr\u1ed9n l\u1eabn c\u00e1c m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng:<\/strong> K\u1ebft h\u1ee3p c\u00e1c b\u1ea3ng c\u01a1 s\u1edf d\u1eef li\u1ec7u, c\u00e1c m\u00e0n h\u00ecnh giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00e1c l\u1edbp logic kinh doanh trong m\u1ed9t s\u01a1 \u0111\u1ed3. Gi\u1eef m\u00f4 h\u00ecnh mi\u1ec1n ri\u00eang bi\u1ec7t v\u1edbi chi ti\u1ebft tri\u1ec3n khai k\u1ef9 thu\u1eadt.<\/li>\n
                        • Gi\u1ea3 \u0111\u1ecbnh c\u00e1c m\u1ed1i quan h\u1ec7:<\/strong> Gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng m\u1ed1i quan h\u1ec7 t\u1ed3n t\u1ea1i m\u00e0 kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng v\u0103n b\u1ea3n. N\u1ebfu v\u0103n b\u1ea3n kh\u00f4ng n\u00f3i hai l\u1edbp t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau, \u0111\u1eebng v\u1ebd \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa ch\u00fang.<\/li>\n
                        • Nh\u1ea7m l\u1eabn gi\u1eefa t\u0129nh v\u00e0 \u0111\u1ed9ng:<\/strong> C\u1ed1 g\u1eafng th\u1ec3 hi\u1ec7n th\u1ee9 t\u1ef1 ho\u1eb7c lu\u1ed3ng trong s\u01a1 \u0111\u1ed3 l\u1edbp. S\u01a1 \u0111\u1ed3 l\u1edbp th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac, ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u00e0nh vi theo th\u1eddi gian.<\/li>\n<\/ul>\n

                          \ud83d\udee0 Ho\u00e0n thi\u1ec7n m\u00f4 h\u00ecnh<\/h2>\n

                          B\u01b0\u1edbc cu\u1ed1i c\u00f9ng l\u00e0 \u0111\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 s\u1ea1ch s\u1ebd v\u00e0 d\u1ec5 \u0111\u1ecdc. M\u1ed9t m\u00f4 h\u00ecnh qu\u00e1 ph\u1ee9c t\u1ea1p l\u00e0 v\u00f4 d\u1ee5ng. \u00c1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc n\u00e0y:<\/p>\n

                            \n
                          • S\u1eafp x\u1ebfp nh\u00f3m:<\/strong> S\u1eed d\u1ee5ng g\u00f3i ho\u1eb7c ng\u0103n \u0111\u1ec3 nh\u00f3m c\u00e1c l\u1edbp li\u00ean quan m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd.<\/li>\n
                          • \u0110\u1eb7t t\u00ean:<\/strong> \u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 t\u00ean l\u1edbp v\u00e0 thu\u1ed9c t\u00ednh nh\u1ea5t qu\u00e1n v\u1edbi thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u00e0i li\u1ec7u y\u00eau c\u1ea7u. Tr\u00e1nh d\u00f9ng thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt tr\u1eeb khi ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi ng\u00f4n ng\u1eef mi\u1ec1n.<\/li>\n
                          • \u0110\u1ed9 hi\u1ec3n th\u1ecb:<\/strong> R\u00f5 r\u00e0ng \u0111\u00e1nh d\u1ea5u c\u00e1c th\u00e0nh vi\u00ean c\u00f4ng khai (+) v\u00e0 ri\u00eang t\u01b0 (-) n\u1ebfu s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c d\u00e0nh cho ng\u01b0\u1eddi ph\u00e1t tri\u1ec3n.<\/li>\n
                          • T\u00e0i li\u1ec7u:<\/strong>Th\u00eam ghi ch\u00fa ho\u1eb7c nh\u1eadn x\u00e9t v\u00e0o s\u01a1 \u0111\u1ed3 \u0111\u1ec3 gi\u1ea3i th\u00edch c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee9c t\u1ea1p m\u00e0 kh\u00f4ng th\u1ec3 th\u1ea5y ngay l\u1eadp t\u1ee9c t\u1eeb c\u00e1c \u0111\u01b0\u1eddng n\u00e9t v\u00e0 h\u00ecnh h\u1ed9p.<\/li>\n<\/ul>\n

                            B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac n\u00e0y, b\u1ea1n s\u1ebd bi\u1ebfn v\u0103n b\u1ea3n m\u01a1 h\u1ed3 th\u00e0nh m\u1ed9t h\u01b0\u1edbng d\u1eabn c\u1ea5u tr\u00fac ch\u00ednh x\u00e1c. \u0110i\u1ec1u n\u00e0y gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3, \u0111\u1ed3ng b\u1ed9 h\u00f3a \u0111\u1ed9i nh\u00f3m v\u00e0 t\u1ea1o n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho vi\u1ec7c tri\u1ec3n khai ph\u1ea7n m\u1ec1m. M\u1ee5c ti\u00eau kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ebd m\u1ed9t b\u1ee9c tranh, m\u00e0 l\u00e0 t\u1ea1o ra m\u1ed9t t\u00e0i li\u1ec7u c\u1ee5 th\u1ec3 \u0111\u1ec3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n.<\/p>\n

                            \ud83d\ude80 Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n l\u01b0u \u00fd<\/h2>\n
                              \n
                            • B\u1eaft \u0111\u1ea7u t\u1eeb v\u0103n b\u1ea3n. Tr\u00edch xu\u1ea5t danh t\u1eeb l\u00e0m l\u1edbp v\u00e0 \u0111\u1ed9ng t\u1eeb l\u00e0m m\u1ed1i quan h\u1ec7.<\/li>\n
                            • Ph\u00e2n bi\u1ec7t gi\u1eefa li\u00ean k\u1ebft, t\u00edch h\u1ee3p v\u00e0 k\u1ebft h\u1ee3p d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc s\u1edf h\u1eefu.<\/li>\n
                            • X\u00e1c minh t\u1eebng y\u1ebfu t\u1ed1 \u0111\u1ed1i chi\u1ebfu v\u1edbi y\u00eau c\u1ea7u ngu\u1ed3n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c.<\/li>\n
                            • Gi\u1eef t\u1eadp trung v\u00e0o c\u1ea5u tr\u00fac, ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u00e0nh vi hay chi ti\u1ebft tri\u1ec3n khai.<\/li>\n
                            • S\u1eed d\u1ee5ng b\u1ed9i s\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c r\u00e0ng bu\u1ed9c s\u1ed1 l\u01b0\u1ee3ng ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c m\u1ed1i quan h\u1ec7.<\/li>\n<\/ul>\n

                              Chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00e0i li\u1ec7u y\u00eau c\u1ea7u th\u00e0nh s\u01a1 \u0111\u1ed3 l\u1edbp UML l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn chi ti\u1ebft v\u00e0 hi\u1ec3u s\u00e2u s\u1eafc v\u1ec1 logic mi\u1ec1n. Khi th\u1ef1c hi\u1ec7n \u0111\u00fang, n\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 duy tr\u00ec v\u00e0 m\u1edf r\u1ed9ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

                              Ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u00fd t\u01b0\u1edfng tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh c\u00e1c c\u1ea5u tr\u00fac c\u1ee5 th\u1ec3. M\u1ed9t trong nh\u1eefng b\u01b0\u1edbc chuy\u1ec3n quan…<\/p>\n","protected":false},"author":1,"featured_media":118,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Chuy\u1ec3n \u0111\u1ed5i T\u00e0i li\u1ec7u Y\u00eau c\u1ea7u th\u00e0nh S\u01a1 \u0111\u1ed3 L\u1edbp UML: H\u01b0\u1edbng d\u1eabn \ud83c\udfd7\ufe0f","_yoast_wpseo_metadesc":"Chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00e0i li\u1ec7u y\u00eau c\u1ea7u v\u0103n b\u1ea3n th\u00e0nh s\u01a1 \u0111\u1ed3 l\u1edbp UML ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn chi ti\u1ebft cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 v\u1ec1 vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a y\u00eau c\u1ea7u v\u00e0 m\u1ed1i quan h\u1ec7.","inline_featured_image":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[4],"tags":[5,7],"class_list":["post-117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-class-diagram"],"yoast_head":"\nChuy\u1ec3n \u0111\u1ed5i T\u00e0i li\u1ec7u Y\u00eau c\u1ea7u th\u00e0nh S\u01a1 \u0111\u1ed3 L\u1edbp UML: H\u01b0\u1edbng d\u1eabn \ud83c\udfd7\ufe0f<\/title>\n<meta name=\"description\" content=\"Chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00e0i li\u1ec7u y\u00eau c\u1ea7u v\u0103n b\u1ea3n th\u00e0nh s\u01a1 \u0111\u1ed3 l\u1edbp UML ch\u00ednh x\u00e1c. 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