{"id":1742,"date":"2026-03-26T03:57:36","date_gmt":"2026-03-26T03:57:36","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/fix-flawed-use-case-models\/"},"modified":"2026-03-26T03:57:36","modified_gmt":"2026-03-26T03:57:36","slug":"fix-flawed-use-case-models","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/fix-flawed-use-case-models\/","title":{"rendered":"Kh\u1eafc ph\u1ee5c s\u1ef1 nh\u1ea7m l\u1eabn: C\u00e1ch s\u1eeda c\u00e1c m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u1ecb l\u1ed7i"},"content":{"rendered":"

Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng. Khi y\u00eau c\u1ea7u m\u01a1 h\u1ed3, m\u00e3 ngu\u1ed3n t\u1ea1o ra tr\u1edf n\u00ean d\u1ec5 g\u00e3y. M\u1ed9t trong nh\u1eefng t\u00e0i s\u1ea3n quan tr\u1ecdng nh\u1ea5t \u1edf giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ban \u0111\u1ea7u l\u00e0 m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. N\u00f3 t\u1ea1o ra s\u1ef1 k\u1ebft n\u1ed1i gi\u1eefa nhu c\u1ea7u c\u1ee7a c\u00e1c b\u00ean li\u00ean quan v\u00e0 vi\u1ec7c tri\u1ec3n khai k\u1ef9 thu\u1eadt. Tuy nhi\u00ean, c\u00e1c m\u00f4 h\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi sai s\u00f3t d\u1eabn \u0111\u1ebfn s\u1ef1 nh\u1ea7m l\u1eabn trong su\u1ed1t v\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n sau n\u00e0y. \ud83d\udcc9<\/p>\n

M\u1ed9t s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u1ecb l\u1ed7i kh\u00f4ng ch\u1ec9 tr\u00f4ng l\u1ed9n x\u1ed9n m\u00e0 c\u00f2n t\u1ea1o ra s\u1ef1 m\u01a1 h\u1ed3. C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng nh\u1eefng t\u00ednh n\u0103ng kh\u00f4ng c\u1ea7n thi\u1ebft, trong khi c\u00e1c ch\u1ee9c n\u0103ng quan tr\u1ecdng l\u1ea1i b\u1ecb b\u1ecf qua. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 kh\u1eafc ph\u1ee5c nh\u1eefng khi\u1ebfm khuy\u1ebft n\u00e0y. Ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch c\u1ea5u tr\u00fac c\u1ee7a m\u00f4 h\u00ecnh, x\u00e1c \u0111\u1ecbnh nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn v\u00e0 thi\u1ebft l\u1eadp quy tr\u00ecnh ki\u1ec3m tra. M\u1ee5c ti\u00eau l\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ecdi t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. \u2699\ufe0f<\/p>\n

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

\ud83d\udd0d Hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h2>\n

Tr\u01b0\u1edbc khi kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac mong mu\u1ed1n. M\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ea1i di\u1ec7n cho c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng t\u1eeb g\u00f3c nh\u00ecn c\u1ee7a c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt, m\u00e0 l\u00e0 b\u1ea3n v\u1ebd h\u00e0nh vi. C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh bao g\u1ed3m:<\/p>\n

    \n
  • Ng\u01b0\u1eddi tham gia:<\/strong>C\u00e1c th\u1ef1c th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. Ch\u00fang c\u00f3 th\u1ec3 l\u00e0 ng\u01b0\u1eddi d\u00f9ng con ng\u01b0\u1eddi ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c.<\/li>\n
  • Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong>Nh\u1eefng m\u1ee5c ti\u00eau ho\u1eb7c nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3 m\u00e0 h\u1ec7 th\u1ed1ng th\u1ef1c hi\u1ec7n cho m\u1ed9t ng\u01b0\u1eddi tham gia.<\/li>\n
  • Bi\u00ean gi\u1edbi h\u1ec7 th\u1ed1ng:<\/strong>M\u1ed9t h\u00ecnh h\u1ed9p ph\u00e2n bi\u1ec7t ph\u1ea7n b\u00ean trong h\u1ec7 th\u1ed1ng v\u00e0 ph\u1ea7n b\u00ean ngo\u00e0i.<\/li>\n
  • M\u1ed1i quan h\u1ec7:<\/strong>C\u00e1c \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa ng\u01b0\u1eddi tham gia v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u00e0 gi\u1eefa c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u1edbi nhau.<\/li>\n<\/ul>\n

    Khi b\u1ea5t k\u1ef3 th\u00e0nh ph\u1ea7n n\u00e0o trong s\u1ed1 n\u00e0y b\u1ecb sai l\u1ec7ch, m\u00f4 h\u00ecnh s\u1ebd m\u1ea5t \u0111i gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng. Nh\u1eefng l\u1ed7i th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c nh\u1ea7m l\u1eabn gi\u1eefa ai<\/em>v\u1edbi c\u00e1i g\u00ec<\/em>, ho\u1eb7c hi\u1ec3u sai tr\u00e1ch nhi\u1ec7m c\u1ee7a h\u1ec7 th\u1ed1ng. \ud83e\udde9<\/p>\n

    \u26a0\ufe0f Sai l\u1ea7m ph\u1ed5 bi\u1ebfn: S\u1ef1 m\u01a1 h\u1ed3 v\u1ec1 ng\u01b0\u1eddi tham gia<\/h2>\n

    Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y nh\u1ea7m l\u1eabn l\u00e0 li\u00ean quan \u0111\u1ebfn ng\u01b0\u1eddi tham gia. M\u1ed9t ng\u01b0\u1eddi tham gia \u0111\u1ea1i di\u1ec7n cho m\u1ed9t vai tr\u00f2, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t ng\u01b0\u1eddi c\u1ee5 th\u1ec3 hay m\u1ed9t thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng. Tuy nhi\u00ean, c\u00e1c nh\u00e0 m\u00f4 h\u00ecnh th\u01b0\u1eddng nh\u1ea7m l\u1eabn c\u00e1c ch\u1ee9c danh c\u1ee5 th\u1ec3 v\u1edbi vai tr\u00f2, ho\u1eb7c coi m\u1ed9t th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng nh\u01b0 ng\u01b0\u1eddi d\u00f9ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u1edf r\u1ed9ng ph\u1ea1m vi v\u00e0 hi\u1ec3u l\u1ea7m trong giao ti\u1ebfp.<\/p>\n

    \u274c V\u1ea5n \u0111\u1ec1: C\u1ee5 th\u1ec3 so v\u1edbi tr\u1eebu t\u01b0\u1ee3ng<\/h3>\n

    N\u1ebfu m\u1ed9t s\u01a1 \u0111\u1ed3 li\u1ec7t k\u00ea John Smith<\/em>l\u00e0 m\u1ed9t ng\u01b0\u1eddi tham gia, th\u00ec \u0111\u00f3 l\u00e0 sai. John Smith l\u00e0 m\u1ed9t th\u1ec3 hi\u1ec7n. Vai tr\u00f2 l\u00e0 Qu\u1ea3n tr\u1ecb vi\u00ean<\/em>. N\u1ebfu John r\u1eddi c\u00f4ng ty, y\u00eau c\u1ea7u v\u1eabn kh\u00f4ng bi\u1ebfn m\u1ea5t. H\u1ec7 th\u1ed1ng v\u1eabn c\u1ea7n m\u1ed9t Qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng \u0111\u00f3. Vi\u1ec7c x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh d\u1ef1a tr\u00ean nh\u1eefng c\u00e1 nh\u00e2n c\u1ee5 th\u1ec3 s\u1ebd g\u1eafn k\u1ebft thi\u1ebft k\u1ebf v\u1edbi con ng\u01b0\u1eddi thay v\u00ec ch\u1ee9c n\u0103ng.<\/p>\n

    \u274c V\u1ea5n \u0111\u1ec1: H\u1ec7 th\u1ed1ng l\u00e0m ng\u01b0\u1eddi tham gia<\/h3>\n

    M\u1ed9t l\u1ed7i kh\u00e1c l\u00e0 v\u1ebd m\u1ed9t ng\u01b0\u1eddi tham gia \u0111\u1ea1i di\u1ec7n cho ch\u00ednh h\u1ec7 th\u1ed1ng. M\u1ed9t h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u00ednh n\u00f3 trong b\u1ed1i c\u1ea3nh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. N\u00f3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i. N\u1ebfu m\u00f4 h\u00ecnh cho th\u1ea5y h\u1ec7 th\u1ed1ng t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u, \u0111\u00f3 l\u00e0 chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Chi ti\u1ebft n\u00e0y thu\u1ed9c v\u1ec1 s\u01a1 \u0111\u1ed3 l\u1edbp ho\u1eb7c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf \u0111\u00e2y.<\/p>\n

    \u2705 Gi\u1ea3i ph\u00e1p: X\u00e1c \u0111\u1ecbnh vai tr\u00f2 m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng<\/h3>\n

    \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, h\u00e3y xem x\u00e9t t\u1eebng h\u00ecnh ng\u01b0\u1eddi tham gia. H\u00e3y \u0111\u1eb7t ra nh\u1eefng c\u00e2u h\u1ecfi sau:<\/p>\n

      \n
    • Li\u00ean quan \u0111\u1ebfn th\u1ef1c th\u1ec3 n\u00e0y, n\u00f3 c\u00f3 t\u1ed3n t\u1ea1i b\u00ean ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng kh\u00f4ng?<\/li>\n
    • Th\u1ef1c th\u1ec3 n\u00e0y c\u00f3 kh\u1edfi t\u1ea1o m\u1ed9t y\u00eau c\u1ea7u hay nh\u1eadn k\u1ebft qu\u1ea3 kh\u00f4ng?<\/li>\n
    • \u0110\u00e2y l\u00e0 m\u1ed9t ng\u01b0\u1eddi c\u1ee5 th\u1ec3 hay m\u1ed9t nh\u00f3m ng\u01b0\u1eddi?<\/li>\n<\/ul>\n

      N\u1ebfu th\u1ef1c th\u1ec3 l\u00e0 m\u1ed9t ng\u01b0\u1eddi c\u1ee5 th\u1ec3, h\u00e3y \u0111\u1eb7t l\u1ea1i t\u00ean th\u00e0nh vai tr\u00f2 c\u1ee7a h\u1ecd. N\u1ebfu th\u1ef1c th\u1ec3 n\u1eb1m b\u00ean trong, h\u00e3y lo\u1ea1i b\u1ecf n\u00f3 kh\u1ecfi danh s\u00e1ch ng\u01b0\u1eddi tham gia. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 v\u1eabn h\u1ee3p l\u1ec7 ngay c\u1ea3 khi nh\u00e2n s\u1ef1 thay \u0111\u1ed5i ho\u1eb7c ki\u1ebfn tr\u00fac n\u1ed9i b\u1ed9 thay \u0111\u1ed5i. \ud83d\udee1\ufe0f<\/p>\n

      \ud83d\udccf Sai l\u1ea7m ph\u1ed5 bi\u1ebfn: Nh\u1ea7m l\u1eabn ranh gi\u1edbi h\u1ec7 th\u1ed1ng<\/h2>\n

      Ranh gi\u1edbi h\u1ec7 th\u1ed1ng x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi c\u1ee7a d\u1ef1 \u00e1n. T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u00ean trong h\u1ed9p \u0111\u1ec1u n\u1eb1m d\u01b0\u1edbi s\u1ef1 ki\u1ec3m so\u00e1t c\u1ee7a b\u1ea1n. T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u00ean ngo\u00e0i l\u00e0 m\u00f4i tr\u01b0\u1eddng. Nh\u1eefng sai s\u00f3t \u1edf \u0111\u00e2y d\u1eabn \u0111\u1ebfn m\u1edf r\u1ed9ng ph\u1ea1m vi ho\u1eb7c t\u00e0i li\u1ec7u y\u00eau c\u1ea7u kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7. \ud83d\udcd0<\/p>\n

      \u274c V\u1ea5n \u0111\u1ec1: R\u00f2 r\u1ec9 tr\u00e1ch nhi\u1ec7m<\/h3>\n

      M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 \u0111\u1eb7t m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u00ean ngo\u00e0i ranh gi\u1edbi nh\u01b0ng th\u1ef1c t\u1ebf l\u1ea1i thu\u1ed9c v\u1ec1 b\u00ean trong. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t T\u1ea1o b\u00e1o c\u00e1o<\/em> tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u1ebd b\u00ean ngo\u00e0i h\u1ed9p h\u1ec7 th\u1ed1ng, \u0111i\u1ec1u \u0111\u00f3 ng\u1ee5 \u00fd h\u1ec7 th\u1ed1ng kh\u00f4ng t\u1ea1o ra n\u00f3. Tuy nhi\u00ean, h\u1ec7 th\u1ed1ng ph\u1ea3i t\u1ea1o d\u1eef li\u1ec7u cho b\u00e1o c\u00e1o. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00e0y ph\u1ea3i n\u1eb1m b\u00ean trong. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu G\u1eedi email<\/em> n\u1eb1m b\u00ean trong, nh\u01b0ng h\u1ec7 th\u1ed1ng ch\u1ec9 k\u00edch ho\u1ea1t m\u00e1y ch\u1ee7 email b\u00ean ngo\u00e0i, h\u00e0nh \u0111\u1ed9ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem l\u00e0 t\u01b0\u01a1ng t\u00e1c thay v\u00ec ch\u1ee9c n\u0103ng n\u1ed9i b\u1ed9.<\/p>\n

      \u274c V\u1ea5n \u0111\u1ec1: Thi\u1ebfu ph\u1ee5 thu\u1ed9c b\u00ean ngo\u00e0i<\/h3>\n

      Ng\u01b0\u1ee3c l\u1ea1i, \u0111\u00f4i khi m\u00f4 h\u00ecnh kh\u00f4ng th\u1ec3 hi\u1ec7n c\u00e1c ng\u01b0\u1eddi tham gia b\u00ean ngo\u00e0i cung c\u1ea5p d\u1eef li\u1ec7u. N\u1ebfu h\u1ec7 th\u1ed1ng ph\u1ee5 thu\u1ed9c v\u00e0o API b\u00ean th\u1ee9 ba \u0111\u1ec3 x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng, th\u00ec API \u0111\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n nh\u01b0 m\u1ed9t ng\u01b0\u1eddi tham gia ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi ranh gi\u1edbi h\u1ec7 th\u1ed1ng. B\u1ecf qua ph\u1ee5 thu\u1ed9c n\u00e0y s\u1ebd khi\u1ebfn m\u00f4 h\u00ecnh kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

      \u2705 Gi\u1ea3i ph\u00e1p: Ki\u1ec3m tra ranh gi\u1edbi<\/h3>\n

      \u00c1p d\u1ee5ng ki\u1ec3m tra ranh gi\u1edbi cho m\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. H\u1ecfi: H\u1ec7 th\u1ed1ng c\u00f3 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng n\u00e0y hay m\u1ed9t th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i th\u1ef1c hi\u1ec7n n\u00f3?<\/em><\/p>\n

        \n
      • H\u00e0nh \u0111\u1ed9ng h\u1ec7 th\u1ed1ng:<\/strong> B\u00ean trong h\u1ed9p. (v\u00ed d\u1ee5: X\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u)<\/li>\n
      • H\u00e0nh \u0111\u1ed9ng b\u00ean ngo\u00e0i:<\/strong> B\u00ean ngo\u00e0i h\u1ed9p. (v\u00ed d\u1ee5: Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1eadt kh\u1ea9u)<\/li>\n<\/ul>\n

        \u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c t\u01b0\u01a1ng t\u00e1c \u0111\u1ec1u v\u01b0\u1ee3t qua \u0111\u01b0\u1eddng ranh gi\u1edbi. M\u1ed9t ng\u01b0\u1eddi tham gia ph\u1ea3i k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. N\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng tr\u00f4i n\u1ed5i m\u00e0 kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i, n\u00f3 s\u1ebd b\u1ecb t\u00e1ch r\u1eddi v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n

        \ud83d\udd17 Sai l\u1ea7m ph\u1ed5 bi\u1ebfn: Qu\u1ea3n l\u00fd m\u1ed1i quan h\u1ec7 sai<\/h2>\n

        C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng hi\u1ebfm khi t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp. Ch\u00fang c\u00f3 li\u00ean h\u1ec7 v\u1edbi nhau. C\u00e1c m\u1ed1i quan h\u1ec7 ch\u00ednh l\u00e0 Bao g\u1ed3m<\/strong>, M\u1edf r\u1ed9ng<\/strong>, v\u00e0 T\u1ed5ng qu\u00e1t h\u00f3a<\/strong>. Vi\u1ec7c s\u1eed d\u1ee5ng sai c\u00e1c k\u1ebft n\u1ed1i n\u00e0y s\u1ebd t\u1ea1o ra l\u1ed7i logic trong y\u00eau c\u1ea7u.<\/p>\n

        \u274c V\u1ea5n \u0111\u1ec1: Nh\u1ea7m l\u1eabn gi\u1eefa Include v\u00e0 Extend<\/h3>\n

        \u0110\u00e2y l\u00e0 l\u1ed7i k\u1ef9 thu\u1eadt nghi\u00eam tr\u1ecdng nh\u1ea5t trong m\u00f4 h\u00ecnh h\u00f3a. C\u1ea3 hai m\u1ed1i quan h\u1ec7 \u0111\u1ec1u k\u1ebft n\u1ed1i c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, nh\u01b0ng ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau.<\/p>\n

          \n
        • Include:<\/strong>H\u00e0nh vi b\u1eaft bu\u1ed9c. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng Aph\u1ea3i<\/em>th\u1ef1c hi\u1ec7n Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a n\u00f3. \u0110\u00e2y l\u00e0 m\u1ed9t t\u1eadp con. (v\u00ed d\u1ee5: \u0110\u1eb7t h\u00e0ng<\/em> bao g\u1ed3m<\/strong> X\u00e1c th\u1ef1c thanh to\u00e1n<\/em>).<\/li>\n
        • Extend:<\/strong>H\u00e0nh vi t\u00f9y ch\u1ecdn. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng Ac\u00f3 th\u1ec3<\/em>th\u1ef1c hi\u1ec7n Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3. N\u00f3 b\u1ed5 sung ch\u1ee9c n\u0103ng. (v\u00ed d\u1ee5: \u0110\u1eb7t h\u00e0ng<\/em> m\u1edf r\u1ed9ng<\/strong> \u00c1p d\u1ee5ng gi\u1ea3m gi\u00e1<\/em>).<\/li>\n<\/ul>\n

          N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng Include<\/strong> cho c\u00e1c b\u01b0\u1edbc t\u00f9y ch\u1ecdn, b\u1ea1n bu\u1ed9c h\u1ec7 th\u1ed1ng ph\u1ea3i th\u1ef1c hi\u1ec7n ch\u00fang m\u1ed7i khi, ngay c\u1ea3 khi kh\u00f4ng c\u1ea7n thi\u1ebft. N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng Extend<\/strong> cho c\u00e1c b\u01b0\u1edbc b\u1eaft bu\u1ed9c, b\u1ea1n c\u00f3 nguy c\u01a1 t\u00ednh n\u0103ng b\u1ecb b\u1ecf qua trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n.<\/p>\n

          \u274c V\u1ea5n \u0111\u1ec1: Ph\u1ee5 thu\u1ed9c v\u00f2ng l\u1eb7p<\/h3>\n

          C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng n\u00ean ph\u1ee5 thu\u1ed9c l\u1eabn nhau theo v\u00f2ng l\u1eb7p. N\u1ebfu Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A bao g\u1ed3m Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B, v\u00e0 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B l\u1ea1i bao g\u1ed3m Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A, lu\u1ed3ng th\u1ef1c hi\u1ec7n s\u1ebd kh\u00f4ng x\u00e1c \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t ngh\u1ecbch l\u00fd logic l\u00e0m d\u1eebng l\u1ea1i qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n.<\/p>\n

          \u2705 Gi\u1ea3i ph\u00e1p: B\u1ea3ng x\u00e1c minh m\u1ed1i quan h\u1ec7<\/h3>\n

          S\u1eed d\u1ee5ng danh s\u00e1ch ki\u1ec3m tra sau \u0111\u1ec3 x\u00e1c minh c\u00e1c m\u1ed1i quan h\u1ec7 tr\u01b0\u1edbc khi ho\u00e0n thi\u1ec7n s\u01a1 \u0111\u1ed3.<\/p>\n\n\n\n\n\n\n\n
          Lo\u1ea1i m\u1ed1i quan h\u1ec7<\/th>\nB\u1eaft bu\u1ed9c hay t\u00f9y ch\u1ecdn?<\/th>\nH\u01b0\u1edbng c\u1ee7a ph\u1ee5 thu\u1ed9c<\/th>\nV\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n
          Bao g\u1ed3m<\/strong><\/td>\nB\u1eaft bu\u1ed9c<\/td>\nTr\u01b0\u1eddng h\u1ee3p c\u01a1 s\u1edf ph\u1ee5 thu\u1ed9c v\u00e0o tr\u01b0\u1eddng h\u1ee3p \u0111\u01b0\u1ee3c bao g\u1ed3m<\/td>\n\u0110\u0103ng nh\u1eadp bao g\u1ed3m X\u00e1c minh th\u00f4ng tin \u0111\u0103ng nh\u1eadp<\/td>\n<\/tr>\n
          M\u1edf r\u1ed9ng<\/strong><\/td>\nT\u00f9y ch\u1ecdn<\/td>\nTr\u01b0\u1eddng h\u1ee3p \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng ph\u1ee5 thu\u1ed9c v\u00e0o tr\u01b0\u1eddng h\u1ee3p c\u01a1 s\u1edf<\/td>\nThanh to\u00e1n m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng B\u1ecdc qu\u00e0<\/td>\n<\/tr>\n
          T\u1ed5ng qu\u00e1t h\u00f3a<\/strong><\/td>\nK\u1ebf th\u1eeba<\/td>\nCon k\u1ebf th\u1eeba h\u00e0nh vi c\u1ee7a Cha<\/td>\nNg\u01b0\u1eddi d\u00f9ng kh\u00e1ch l\u00e0 m\u1ed9t lo\u1ea1i ng\u01b0\u1eddi d\u00f9ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Xem x\u00e9t t\u1eebng \u0111\u01b0\u1eddng n\u1ed1i gi\u1eefa hai tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. N\u1ebfu k\u1ebft n\u1ed1i l\u00e0 b\u1eaft bu\u1ed9c, th\u00ec ph\u1ea3i l\u00e0 Bao g\u1ed3m. N\u1ebfu l\u00e0 \u0111i\u1ec1u ki\u1ec7n, th\u00ec ph\u1ea3i l\u00e0 M\u1edf r\u1ed9ng. Lo\u1ea1i b\u1ecf ngay l\u1eadp t\u1ee9c b\u1ea5t k\u1ef3 m\u0169i t\u00ean v\u00f2ng tr\u00f2n n\u00e0o. \ud83d\udd00<\/p>\n

          \ud83d\udcc9 Sai l\u1ea7m ph\u1ed5 bi\u1ebfn: M\u1edf r\u1ed9ng ph\u1ea1m vi<\/h2>\n

          Sai l\u1ec7ch ph\u1ea1m vi x\u1ea3y ra khi c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng tr\u1edf n\u00ean qu\u00e1 chi ti\u1ebft ho\u1eb7c qu\u00e1 tr\u1eebu t\u01b0\u1ee3ng. M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00ean \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u1ee5c ti\u00eau duy nh\u1ea5t v\u00e0 c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c. N\u00f3 kh\u00f4ng n\u00ean l\u00e0 m\u1ed9t lu\u1ed3ng quy tr\u00ecnh, c\u0169ng kh\u00f4ng n\u00ean l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m m\u01a1 h\u1ed3.<\/p>\n

          \u274c V\u1ea5n \u0111\u1ec1: Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t quy tr\u00ecnh<\/h3>\n

          M\u1ed9t sai l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 \u0111\u1eb7t t\u00ean cho m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u1eb1ng c\u1ee5m \u0111\u1ed9ng t\u1eeb ng\u1ee5 \u00fd m\u1ed9t quy tr\u00ecnh d\u00e0i. V\u00ed d\u1ee5, Qu\u1ea3n l\u00fd h\u1ed3 s\u01a1 nh\u00e2n vi\u00ean<\/em> l\u00e0 qu\u00e1 r\u1ed9ng. N\u00f3 ng\u1ee5 \u00fd vi\u1ec7c t\u1ea1o, c\u1eadp nh\u1eadt, x\u00f3a v\u00e0 xem. Th\u1ef1c t\u1ebf \u0111\u00e2y l\u00e0 b\u1ed1n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c nhau.<\/p>\n

          Khi m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng qu\u00e1 r\u1ed9ng, vi\u1ec7c ki\u1ec3m th\u1eed s\u1ebd tr\u1edf n\u00ean kh\u00f3 kh\u0103n. Khi n\u00f3 qu\u00e1 h\u1eb9p (v\u00ed d\u1ee5, Nh\u1ea5n n\u00fat A<\/em>), \u0111\u00f3 l\u00e0 m\u1ed9t t\u01b0\u01a1ng t\u00e1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u1ee5c ti\u00eau.<\/p>\n

          \u274c V\u1ea5n \u0111\u1ec1: B\u1ecf qua nhu c\u1ea7u phi ch\u1ee9c n\u0103ng<\/h3>\n

          C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1eadp trung v\u00e0o ch\u1ee9c n\u0103ng. Tuy nhi\u00ean, hi\u1ec7u su\u1ea5t, b\u1ea3o m\u1eadt v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c. M\u1eb7c d\u00f9 ch\u00fang kh\u00f4ng xu\u1ea5t hi\u1ec7n nh\u01b0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ri\u00eang bi\u1ec7t, nh\u01b0ng ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ecbnh ngh\u0129a c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. V\u00ed d\u1ee5, X\u1eed l\u00fd giao d\u1ecbch<\/em> ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a v\u1edbi r\u00e0ng bu\u1ed9c l\u00e0 ho\u00e0n th\u00e0nh trong v\u00f2ng 2 gi\u00e2y. N\u1ebfu m\u00f4 h\u00ecnh b\u1ecf qua \u0111i\u1ec1u n\u00e0y, tri\u1ec3n khai k\u1ef9 thu\u1eadt s\u1ebd th\u1ea5t b\u1ea1i.<\/p>\n

          \u2705 Gi\u1ea3i ph\u00e1p: Quy t\u1eafc M\u1ee5c ti\u00eau \u0110\u01a1n nh\u1ea5t<\/h3>\n

          \u00c1p d\u1ee5ng Quy t\u1eafc M\u1ee5c ti\u00eau \u0110\u01a1n nh\u1ea5t cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Li\u1ec7u tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00e0y c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh trong m\u1ed9t b\u01b0\u1edbc t\u1eeb g\u00f3c nh\u00ecn c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng? N\u1ebfu kh\u00f4ng, h\u00e3y chia nh\u1ecf n\u00f3. \ud83e\uddf1<\/p>\n

            \n
          • X\u1ea5u:<\/strong>Qu\u1ea3n l\u00fd t\u1ed3n kho<\/li>\n
          • H\u00e0ng:<\/strong>Th\u00eam m\u1ee5c t\u1ed3n kho<\/li>\n
          • H\u00e0ng:<\/strong>C\u1eadp nh\u1eadt m\u1ee5c t\u1ed3n kho<\/li>\n
          • H\u00e0ng:<\/strong>X\u00f3a m\u1ee5c t\u1ed3n kho<\/li>\n<\/ul>\n

            \u0110\u1ed9 chi ti\u1ebft n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng n\u1ed7 l\u1ef1c m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. N\u00f3 c\u0169ng l\u00e0m cho vi\u1ec7c ki\u1ec3m th\u1eed tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. M\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng tr\u1edf th\u00e0nh m\u1ed9t tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed ri\u00eang bi\u1ec7t.<\/p>\n

            \ud83d\udee1\ufe0f Quy tr\u00ecnh x\u00e1c th\u1ef1c v\u00e0 xem x\u00e9t<\/h2>\n

            T\u1ea1o m\u1ed9t m\u00f4 h\u00ecnh l\u00e0 m\u1ed9t vi\u1ec7c; x\u00e1c minh n\u00f3 l\u00e0 m\u1ed9t vi\u1ec7c kh\u00e1c. M\u1ed9t m\u00f4 h\u00ecnh c\u00f3 khuy\u1ebft \u0111i\u1ec3m ch\u1eafc ch\u1eafn s\u1ebd b\u1ed9c l\u1ed9 trong giai \u0111o\u1ea1n l\u1eadp tr\u00ecnh, d\u1eabn \u0111\u1ebfn ph\u1ea3i l\u00e0m l\u1ea1i. M\u1ed9t quy tr\u00ecnh xem x\u00e9t c\u00f3 c\u1ea5u tr\u00fac s\u1ebd gi\u1ea3m thi\u1ec3u r\u1ee7i ro n\u00e0y.<\/p>\n

            1. C\u00e1c bu\u1ed5i \u0111i d\u1ea1o v\u1edbi b\u00ean li\u00ean quan<\/h3>\n

            Tr\u00ecnh b\u00e0y s\u01a1 \u0111\u1ed3 cho c\u00e1c b\u00ean li\u00ean quan kinh doanh. Y\u00eau c\u1ea7u h\u1ecd theo d\u00f5i lu\u1ed3ng. C\u00e2u chuy\u1ec7n c\u00f3 h\u1ee3p l\u00fd v\u1edbi h\u1ecd kh\u00f4ng? N\u1ebfu h\u1ecd kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0m g\u00ec, th\u00ec s\u01a1 \u0111\u1ed3 ch\u01b0a r\u00f5 r\u00e0ng \u0111\u1ee7. H\u1ecd kh\u00f4ng n\u00ean c\u1ea7n \u0111\u1ebfn thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt \u0111\u1ec3 hi\u1ec3u s\u01a1 \u0111\u1ed3.<\/p>\n

            2. Ki\u1ec3m tra t\u00ednh kh\u1ea3 thi c\u1ee7a nh\u00e0 ph\u00e1t tri\u1ec3n<\/h3>\n

            Y\u00eau c\u1ea7u m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ea5p cao xem x\u00e9t m\u00f4 h\u00ecnh. H\u1ecd c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c gi\u1edbi h\u1ea1n k\u1ef9 thu\u1eadt m\u00e0 nh\u00e0 ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 b\u1ecf s\u00f3t. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c, m\u00f4 h\u00ecnh ph\u1ea3i ph\u1ea3n \u00e1nh t\u00e1c \u0111\u1ed9ng v\u1ec1 \u0111\u1ed9 tr\u1ec5.<\/p>\n

            3. Ki\u1ec3m tra t\u00ednh nh\u1ea5t qu\u00e1n<\/h3>\n

            \u0110\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c. N\u1ebfu s\u01a1 \u0111\u1ed3 l\u1edbp hi\u1ec3n th\u1ecb m\u1ed9t Ng\u01b0\u1eddi d\u00f9ng<\/em> th\u1ef1c th\u1ec3, s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ea3i c\u00f3 m\u1ed9t Ng\u01b0\u1eddi d\u00f9ng<\/em> t\u00e1c nh\u00e2n. N\u1ebfu l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u thay \u0111\u1ed5i, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng n\u00ean thay \u0111\u1ed5i tr\u1eeb khi m\u1ee5c ti\u00eau kinh doanh thay \u0111\u1ed5i. Gi\u1eef cho m\u00f4 h\u00ecnh ch\u1ee9c n\u0103ng \u1ed5n \u0111\u1ecbnh.<\/p>\n

            \ud83d\udccb Danh s\u00e1ch ki\u1ec3m tra kh\u1eafc ph\u1ee5c<\/h2>\n

            Khi b\u1ea1n ph\u00e1t hi\u1ec7n khuy\u1ebft \u0111i\u1ec3m, h\u00e3y tu\u00e2n theo tr\u00ecnh t\u1ef1 kh\u1eafc ph\u1ee5c n\u00e0y. \u0110\u1eebng c\u1ed1 g\u1eafng s\u1eeda t\u1ea5t c\u1ea3 c\u00f9ng m\u1ed9t l\u00fac. C\u00e1ch ly l\u1ed7i.<\/p>\n

              \n
            • B\u01b0\u1edbc 1: X\u00e1c minh c\u00e1c t\u00e1c nh\u00e2n.<\/strong> Ch\u00fang c\u00f3 ph\u1ea3i l\u00e0 vai tr\u00f2 kh\u00f4ng? Ch\u00fang c\u00f3 ph\u1ea3i b\u00ean ngo\u00e0i kh\u00f4ng? \u0110\u1ed5i t\u00ean c\u00e1c t\u00ean c\u1ee5 th\u1ec3 th\u00e0nh c\u00e1c vai tr\u00f2 chung.<\/li>\n
            • B\u01b0\u1edbc 2: Ki\u1ec3m tra ranh gi\u1edbi.<\/strong> Di chuy\u1ec3n c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0o trong ho\u1eb7c ra ngo\u00e0i d\u1ef1a tr\u00ean tr\u00e1ch nhi\u1ec7m.<\/li>\n
            • B\u01b0\u1edbc 3: Ki\u1ec3m tra c\u00e1c m\u1ed1i quan h\u1ec7.<\/strong> Thay th\u1ebf c\u00e1c m\u1ed1i quan h\u1ec7 Includes sai b\u1eb1ng Extends ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i. Ph\u00e1 v\u1ee1 c\u00e1c m\u1ed1i quan h\u1ec7 v\u00f2ng l\u1eb7p.<\/li>\n
            • B\u01b0\u1edbc 4: Tinh ch\u1ec9nh \u0111\u1ed9 chi ti\u1ebft.<\/strong> Chia c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng r\u1ed9ng th\u00e0nh c\u00e1c m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3.<\/li>\n
            • B\u01b0\u1edbc 5: T\u00e0i li\u1ec7u r\u00e0ng bu\u1ed9c.<\/strong>Th\u00eam ghi ch\u00fa v\u1ec1 c\u00e1c y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t ho\u1eb7c b\u1ea3o m\u1eadt \u0111i k\u00e8m v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

              \ud83d\ude80 Chi\u1ebfn l\u01b0\u1ee3c ph\u00f2ng ng\u1eeba<\/h2>\n

              Sau khi m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i trong t\u01b0\u01a1ng lai? Ph\u00f2ng ng\u1eeba \u0111\u00f2i h\u1ecfi s\u1ef1 k\u1ef7 lu\u1eadt v\u00e0 c\u00e1c quy tr\u00ecnh v\u1eadn h\u00e0nh chu\u1ea9n.<\/p>\n

              Thi\u1ebft l\u1eadp quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean<\/h3>\n

              \u00c1p d\u1ee5ng quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nghi\u00eam ng\u1eb7t. T\u1ea5t c\u1ea3 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ea3i b\u1eaft \u0111\u1ea7u b\u1eb1ng \u0111\u1ed9ng t\u1eeb v\u00e0 k\u1ebft th\u00fac b\u1eb1ng danh t\u1eeb (v\u00ed d\u1ee5, Truy xu\u1ea5t h\u00f3a \u0111\u01a1n<\/em>). T\u1ea5t c\u1ea3 c\u00e1c t\u00e1c nh\u00e2n ph\u1ea3i l\u00e0 danh t\u1eeb \u0111\u1ea1i di\u1ec7n cho vai tr\u00f2 (v\u00ed d\u1ee5, K\u1ebf to\u00e1n vi\u00ean<\/em>). S\u1ef1 nh\u1ea5t qu\u00e1n n\u00e0y gi\u00fap vi\u1ec7c qu\u00e9t s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n

              X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi s\u1edbm<\/h3>\n

              Tr\u01b0\u1edbc khi v\u1ebd h\u1ed9p \u0111\u1ea7u ti\u00ean, h\u00e3y x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi h\u1ec7 th\u1ed1ng. Li\u1ec7t k\u00ea nh\u1eefng g\u00ec r\u00f5 r\u00e0ng n\u1eb1m ngo\u00e0i ph\u1ea1m vi. N\u1ebfu m\u1ed9t y\u00eau c\u1ea7u n\u1eb1m ngo\u00e0i ranh gi\u1edbi, h\u00e3y ghi nh\u1eadn n\u00f3 nh\u01b0 m\u1ed9t ph\u1ee5 thu\u1ed9c b\u00ean ngo\u00e0i, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 m\u1edf r\u1ed9ng ph\u1ea1m vi trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/p>\n

              Tinh ch\u1ec9nh theo t\u1eebng b\u01b0\u1edbc l\u1eb7p<\/h3>\n

              \u0110\u1eebng mong \u0111\u1ee3i b\u1ea3n nh\u00e1p \u0111\u1ea7u ti\u00ean l\u00e0 ho\u00e0n h\u1ea3o. M\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1i nh\u00ecn t\u1ed5ng quan c\u1ea5p cao. Th\u00eam chi ti\u1ebft \u1edf c\u00e1c l\u1ea7n l\u1eb7p ti\u1ebfp theo. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n ph\u00e1t hi\u1ec7n l\u1ed7i ph\u1ea1m vi tr\u01b0\u1edbc khi t\u1ed1n th\u1eddi gian v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7 chi ti\u1ebft.<\/p>\n

              Ti\u00eau chu\u1ea9n h\u00f3a c\u00e1c m\u1ed1i quan h\u1ec7<\/h3>\n

              C\u00f9ng nhau quy\u1ebft \u0111\u1ecbnh \u0111i\u1ec1u g\u00ec \u0111\u00f3 l\u00e0 Bao g\u1ed3m<\/strong> v\u00e0 M\u1edf r\u1ed9ng<\/strong> c\u00f3 ngh\u0129a l\u00e0 g\u00ec. M\u1ed9t s\u1ed1 nh\u00f3m coi Bao g\u1ed3m l\u00e0 b\u1eaft bu\u1ed9c<\/em>, nh\u1eefng nh\u00f3m kh\u00e1c coi l\u00e0 th\u01b0\u1eddng g\u1eb7p<\/em>. \u0110\u1ed3ng thu\u1eadn v\u1ec1 \u0111\u1ecbnh ngh\u0129a chu\u1ea9n \u0111\u1ec3 tr\u00e1nh hi\u1ec3u l\u1ea7m gi\u1eefa c\u00e1c th\u00e0nh vi\u00ean trong nh\u00f3m. Ghi l\u1ea1i \u0111\u1ecbnh ngh\u0129a n\u00e0y trong t\u1eeb \u0111i\u1ec3n d\u1ef1 \u00e1n.<\/p>\n

              \ud83e\udde9 Ph\u00e2n t\u00edch t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/h2>\n

              H\u00e3y xem x\u00e9t m\u1ed9t t\u00ecnh hu\u1ed1ng khi m\u1ed9t h\u1ec7 th\u1ed1ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed \u0111ang \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a. B\u1ea3n nh\u00e1p ban \u0111\u1ea7u hi\u1ec3n th\u1ecb m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng g\u1ecdi l\u00e0 X\u1eed l\u00fd thanh to\u00e1n<\/em>. N\u00f3 bao g\u1ed3m X\u00e1c th\u1ef1c th\u1ebb<\/em> v\u00e0 N\u1ea1p ti\u1ec1n t\u00e0i kho\u1ea3n<\/em>. N\u00f3 c\u0169ng m\u1edf r\u1ed9ng \u00c1p d\u1ee5ng m\u00e3 gi\u1ea3m gi\u00e1<\/em>.<\/p>\n

              Ph\u00e2n t\u00edch:<\/strong><\/p>\n

                \n
              • X\u1eed l\u00fd thanh to\u00e1n<\/em> qu\u00e1 r\u1ed9ng. N\u00f3 n\u00ean \u0111\u01b0\u1ee3c chia th\u00e0nh Kh\u1edfi t\u1ea1o thanh to\u00e1n<\/em> v\u00e0 X\u00e1c nh\u1eadn thanh to\u00e1n<\/em>.<\/li>\n
              • X\u00e1c minh th\u1ebb<\/em> l\u00e0 b\u01b0\u1edbc b\u1eaft bu\u1ed9c. Gi\u1eef nguy\u00ean l\u00e0 Include.<\/li>\n
              • \u00c1p d\u1ee5ng m\u00e3 gi\u1ea3m gi\u00e1<\/em> l\u00e0 t\u00f9y ch\u1ecdn. Gi\u1eef nguy\u00ean l\u00e0 Extend.<\/li>\n
              • Ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n n\u00ean l\u00e0 Kh\u00e1ch h\u00e0ng<\/em>, kh\u00f4ng ph\u1ea3i Ng\u01b0\u1eddi mua<\/em>.<\/li>\n<\/ul>\n

                B\u1eb1ng c\u00e1ch tinh ch\u1ec9nh \u0111i\u1ec1u n\u00e0y, \u0111\u1ed9i ph\u00e1t tri\u1ec3n bi\u1ebft ch\u00ednh x\u00e1c m\u00e3 n\u00e0o c\u1ea7n vi\u1ebft. S\u1eed d\u1ee5ng Kh\u1edfi t\u1ea1o thanh to\u00e1n<\/em> tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng k\u00edch ho\u1ea1t giao di\u1ec7n. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng X\u00e1c nh\u1eadn thanh to\u00e1n<\/em> x\u1eed l\u00fd giao d\u1ecbch. Logic \u00c1p d\u1ee5ng m\u00e3 gi\u1ea3m gi\u00e1<\/em> l\u00e0 t\u00f9y ch\u1ecdn v\u00e0 ch\u1ec9 ch\u1ea1y khi \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng.<\/p>\n

                \ud83d\udcdd Nh\u1eefng suy ngh\u0129 cu\u1ed1i c\u00f9ng v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a m\u00f4 h\u00ecnh<\/h2>\n

                M\u1ed9t m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 c\u00f4ng c\u1ee5 giao ti\u1ebfp. Gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 n\u1eb1m \u1edf s\u1ef1 r\u00f5 r\u00e0ng m\u00e0 n\u00f3 mang l\u1ea1i cho c\u00e1c y\u00eau c\u1ea7u ph\u1ee9c t\u1ea1p. Khi m\u00f4 h\u00ecnh c\u00f3 l\u1ed7i, giao ti\u1ebfp s\u1ebd b\u1ecb gi\u00e1n \u0111o\u1ea1n. Vi\u1ec7c kh\u1eafc ph\u1ee5c nh\u1eefng l\u1ed7i n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd c\u00e1c \u0111\u01b0\u1eddng \u0111\u00fang c\u00e1ch; m\u00e0 c\u00f2n l\u00e0 \u0111\u1ea3m b\u1ea3o logic kinh doanh \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c.<\/p>\n

                B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t, x\u00e1c \u0111\u1ecbnh vai tr\u00f2 ch\u00ednh x\u00e1c v\u00e0 x\u00e1c minh c\u00e1c m\u1ed1i quan h\u1ec7, b\u1ea1n t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m b\u1ec1n v\u1eefng. C\u00f4ng s\u1ee9c b\u1ecf ra \u0111\u1ec3 kh\u1eafc ph\u1ee5c l\u1ed7i trong m\u00f4 h\u00ecnh ngay b\u00e2y gi\u1edd s\u1ebd ti\u1ebft ki\u1ec7m r\u1ea5t nhi\u1ec1u th\u1eddi gian trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai. H\u00e3y t\u1eadp trung v\u00e0o m\u1ee5c ti\u00eau, ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00fa ph\u00e1p. \u0110\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 ph\u1ea3n \u00e1nh \u0111\u00fang s\u1ef1 th\u1eadt v\u1ec1 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng. \ud83c\udfaf<\/p>\n

                C\u00e1c cu\u1ed9c ki\u1ec3m to\u00e1n \u0111\u1ecbnh k\u1ef3 m\u00f4 h\u00ecnh gi\u00fap n\u00f3 lu\u00f4n ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u0111ang thay \u0111\u1ed5i. Khi d\u1ef1 \u00e1n ph\u00e1t tri\u1ec3n, h\u00e3y xem x\u00e9t l\u1ea1i c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Lo\u1ea1i b\u1ecf nh\u1eefng tr\u01b0\u1eddng h\u1ee3p l\u1ed7i th\u1eddi v\u00e0 th\u00eam nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u1edbi. Gi\u1eef cho m\u00f4 h\u00ecnh lu\u00f4n s\u1ed1ng \u0111\u1ed9ng. M\u1ed9t m\u00f4 h\u00ecnh t\u0129nh s\u1ebd tr\u1edf th\u00e0nh di t\u00edch. M\u1ed9t m\u00f4 h\u00ecnh ho\u1ea1t \u0111\u1ed9ng s\u1ebd v\u1eabn l\u00e0 kim ch\u1ec9 nam. \ud83c\udf31<\/p>\n","protected":false},"excerpt":{"rendered":"

                Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng. Khi y\u00eau c\u1ea7u m\u01a1 h\u1ed3, m\u00e3 ngu\u1ed3n t\u1ea1o ra tr\u1edf n\u00ean d\u1ec5 g\u00e3y. M\u1ed9t trong nh\u1eefng t\u00e0i s\u1ea3n quan tr\u1ecdng…<\/p>\n","protected":false},"author":1,"featured_media":1743,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u1eeda l\u1ed7i M\u00f4 h\u00ecnh Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng: H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 to\u00e0n di\u1ec7n \ud83d\udee0\ufe0f","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch nh\u1eadn di\u1ec7n v\u00e0 s\u1eeda ch\u1eefa c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn trong s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. 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