{"id":646,"date":"2026-03-30T06:49:13","date_gmt":"2026-03-30T06:49:13","guid":{"rendered":"https:\/\/www.viz-tools.com\/vi\/troubleshooting-confusing-uml-activity-diagrams\/"},"modified":"2026-03-30T06:49:13","modified_gmt":"2026-03-30T06:49:13","slug":"troubleshooting-confusing-uml-activity-diagrams","status":"publish","type":"post","link":"https:\/\/www.viz-tools.com\/vi\/troubleshooting-confusing-uml-activity-diagrams\/","title":{"rendered":"Kh\u1eafc ph\u1ee5c c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML g\u00e2y nh\u1ea7m l\u1eabn: H\u01b0\u1edbng d\u1eabn cho nh\u00e0 ph\u00e1t tri\u1ec3n"},"content":{"rendered":"

S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i quan tr\u1ecdng gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 logic tri\u1ec3n khai c\u1ee5 th\u1ec3. Ch\u00fang m\u00f4 t\u1ea3 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n b\u00ean trong h\u1ec7 th\u1ed1ng, tr\u1ef1c quan h\u00f3a tr\u00ecnh t\u1ef1 c\u00e1c h\u00e0nh \u0111\u1ed9ng, quy\u1ebft \u0111\u1ecbnh v\u00e0 chuy\u1ec3n d\u1eef li\u1ec7u. Tuy nhi\u00ean, khi h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p, c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y th\u01b0\u1eddng tr\u1edf th\u00e0nh nh\u1eefng m\u1ea1ng l\u01b0\u1edbi r\u1ed1i ren c\u1ee7a c\u00e1c n\u00fat v\u00e0 c\u1ea1nh, che gi\u1ea5u nhi\u1ec1u h\u01a1n l\u00e0 l\u00e0m r\u00f5. Khi m\u1ed9t s\u01a1 \u0111\u1ed3 kh\u00f3 \u0111\u1ecdc, \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y s\u1ef1 s\u1ee5p \u0111\u1ed5 trong giao ti\u1ebfp gi\u1eefa c\u00e1c ki\u1ebfn tr\u00fac s\u01b0, nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 c\u00e1c b\u00ean li\u00ean quan. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, ph\u00e2n t\u00edch v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn xu\u1ea5t hi\u1ec7n trong c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng ph\u1ee9c t\u1ea1p.<\/p>\n

S\u1ef1 nh\u1ea7m l\u1eabn trong m\u00f4 h\u00ecnh h\u00f3a th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb thi\u1ebfu s\u1ef1 chu\u1ea9n h\u00f3a ho\u1eb7c nh\u1ea7m l\u1eabn gi\u1eefa c\u00e1c kh\u00e1i ni\u1ec7m UML kh\u00e1c nhau. D\u00f9 b\u1ea1n \u0111ang xem x\u00e9t m\u1ed9t thi\u1ebft k\u1ebf c\u0169 hay tinh ch\u1ec9nh quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ee7a m\u1ed9t d\u1ecbch v\u1ee5 vi m\u00f4 m\u1edbi, vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c chi ti\u1ebft v\u1ec1 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n, lu\u1ed3ng \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 t\u00ednh \u0111\u1ed3ng th\u1eddi l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. C\u00e1c ph\u1ea7n ti\u1ebfp theo s\u1ebd ph\u00e2n t\u00edch c\u00e1c khu v\u1ef1c k\u1ef9 thu\u1eadt c\u1ee5 th\u1ec3 m\u00e0 s\u01a1 \u0111\u1ed3 th\u01b0\u1eddng th\u1ea5t b\u1ea1i, \u0111\u1ed3ng th\u1eddi \u0111\u01b0a ra c\u00e1c chi\u1ebfn l\u01b0\u1ee3c th\u1ef1c t\u1ebf \u0111\u1ec3 kh\u00f4i ph\u1ee5c s\u1ef1 r\u00f5 r\u00e0ng.<\/p>\n

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\"Charcoal<\/figure>\n<\/div>\n

\ud83e\udde9 Hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac c\u1ee7a s\u1ef1 ph\u1ee9c t\u1ea1p<\/h2>\n

Tr\u01b0\u1edbc khi kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, ta c\u1ea7n hi\u1ec3u r\u00f5 c\u00e1c y\u1ebfu t\u1ed1 n\u1ec1n t\u1ea3ng t\u1ea1o n\u00ean s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng. S\u1ef1 r\u00f5 r\u00e0ng b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t chu\u1ea9n UML v\u1ec1 lo\u1ea1i n\u00fat v\u00e0 k\u1ebft n\u1ed1i. Nhi\u1ec1u \u0111i\u1ec3m g\u00e2y nh\u1ea7m l\u1eabn xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c tr\u1ed9n l\u1eabn c\u00e1c vai tr\u00f2 ng\u1eef ngh\u0129a.<\/p>\n

    \n
  • Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n:<\/strong> \u0110\u1ea1i di\u1ec7n cho th\u1ee9 t\u1ef1 x\u1ea3y ra c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng. N\u00f3 di chuy\u1ec3n t\u1eeb m\u1ed9t h\u00e0nh \u0111\u1ed9ng sang h\u00e0nh \u0111\u1ed9ng kh\u00e1c d\u1ef1a tr\u00ean \u0111i\u1ec1u ki\u1ec7n ho\u00e0n th\u00e0nh.<\/li>\n
  • Lu\u1ed3ng \u0111\u1ed1i t\u01b0\u1ee3ng:<\/strong> \u0110\u1ea1i di\u1ec7n cho s\u1ef1 di chuy\u1ec3n d\u1eef li\u1ec7u ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng gi\u1eefa c\u00e1c ho\u1ea1t \u0111\u1ed9ng. N\u00f3 kh\u00f4ng tr\u1ef1c ti\u1ebfp \u0111\u1ecbnh ngh\u0129a th\u1ee9 t\u1ef1 th\u1ef1c thi nh\u01b0ng cho th\u1ea5y m\u1ed1i ph\u1ee5 thu\u1ed9c d\u1eef li\u1ec7u.<\/li>\n
  • N\u00fat kh\u1edfi \u0111\u1ea7u:<\/strong> \u0110i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u1ee7a ho\u1ea1t \u0111\u1ed9ng. M\u1ed7i ho\u1ea1t \u0111\u1ed9ng c\u1ea5p cao ch\u1ec9 n\u00ean c\u00f3 m\u1ed9t n\u00fat kh\u1edfi \u0111\u1ea7u.<\/li>\n
  • N\u00fat k\u1ebft th\u00fac ho\u1ea1t \u0111\u1ed9ng:<\/strong> Ch\u1ec9 ra \u0111i\u1ec3m k\u1ebft th\u00fac to\u00e0n b\u1ed9 ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec1u khi\u1ec3n ch\u1ea3y \u0111\u1ebfn \u0111\u00e2y khi t\u1ea5t c\u1ea3 logic \u0111\u00e3 ho\u00e0n th\u00e0nh.<\/li>\n
  • N\u00fat k\u1ebft th\u00fac lu\u1ed3ng:<\/strong> Ch\u1ec9 ra \u0111i\u1ec3m k\u1ebft th\u00fac c\u1ee7a m\u1ed9t \u0111\u01b0\u1eddng lu\u1ed3ng c\u1ee5 th\u1ec3. C\u00e1c \u0111\u01b0\u1eddng lu\u1ed3ng kh\u00e1c v\u1eabn c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c \u0111\u1ebfn n\u00fat k\u1ebft th\u00fac ri\u00eang c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n

    M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 coi n\u00fat k\u1ebft th\u00fac ho\u1ea1t \u0111\u1ed9ng v\u00e0 n\u00fat k\u1ebft th\u00fac lu\u1ed3ng l\u00e0 thay th\u1ebf \u0111\u01b0\u1ee3c cho nhau. Vi\u1ec7c s\u1eed d\u1ee5ng n\u00fat k\u1ebft th\u00fac ho\u1ea1t \u0111\u1ed9ng \u1edf gi\u1eefa s\u01a1 \u0111\u1ed3 s\u1ebd l\u00e0m d\u1eebng to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 h\u00e0nh vi mong mu\u1ed1n. Ng\u01b0\u1ee3c l\u1ea1i, s\u1eed d\u1ee5ng n\u00fat k\u1ebft th\u00fac lu\u1ed3ng \u0111\u1ec3 k\u1ebft th\u00fac m\u1ed9t nh\u00e1nh c\u1ee5 th\u1ec3 cho ph\u00e9p c\u00e1c nh\u00e1nh song song ti\u1ebfp t\u1ee5c \u0111\u1ed9c l\u1eadp.<\/p>\n

    \ud83d\udd04 C\u00e1c l\u1ed7i logic lu\u1ed3ng ph\u1ed5 bi\u1ebfn<\/h2>\n

    C\u00e1c l\u1ed7i logic trong s\u01a1 \u0111\u1ed3 th\u01b0\u1eddng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y cho \u0111\u1ebfn khi m\u00e3 \u0111\u01b0\u1ee3c vi\u1ebft. M\u1ed9t s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 tr\u00f4ng \u0111\u00fang v\u1ec1 m\u1eb7t ng\u1eef ph\u00e1p nh\u01b0ng l\u1ea1i kh\u00f4ng ph\u1ea3n \u00e1nh \u0111\u00fang c\u00e1c quy t\u1eafc kinh doanh th\u1ef1c t\u1ebf. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y th\u01b0\u1eddng th\u1ec3 hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng k\u1eb9t ch\u1ebft ho\u1eb7c c\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 \u0111\u1ea1t t\u1edbi.<\/p>\n

    K\u1eb9t ch\u1ebft v\u00e0 v\u00f2ng l\u1eb7p v\u00f4 h\u1ea1n<\/h3>\n

    K\u1eb9t ch\u1ebft x\u1ea3y ra khi hai ho\u1eb7c nhi\u1ec1u lu\u1ed3ng ch\u1edd nhau ho\u00e0n th\u00e0nh, t\u1ea1o th\u00e0nh m\u1ed9t v\u00f2ng l\u1eb7p kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1ed3ng th\u1eddi chia s\u1ebb t\u00e0i nguy\u00ean m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 \u0111\u1ed3ng b\u1ed9 h\u00f3a ph\u00f9 h\u1ee3p.<\/p>\n

      \n
    • Nh\u1eadn di\u1ec7n:<\/strong> T\u00ecm ki\u1ebfm c\u00e1c chu tr\u00ecnh m\u00e0 kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng tho\u00e1t n\u00e0o ngo\u00e0i vi\u1ec7c ch\u1edd \u0111\u1ee3i.<\/li>\n
    • Gi\u1ea3i ph\u00e1p:<\/strong> \u0110\u1ea3m b\u1ea3o m\u1ecdi v\u00f2ng l\u1eb7p \u0111\u1ec1u c\u00f3 \u0111i\u1ec1u ki\u1ec7n tho\u00e1t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. S\u1eed d\u1ee5ng \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 tr\u00ean c\u00e1c n\u00fat quy\u1ebft \u0111\u1ecbnh \u0111\u1ec3 bu\u1ed9c qu\u00e1 tr\u00ecnh ti\u1ebfn tri\u1ec3n.<\/li>\n<\/ul>\n

      C\u00e1c \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng th\u1ec3 \u0111\u1ea1t t\u1edbi<\/h3>\n

      \u0110\u00f4i khi, m\u1ed9t nh\u00e1nh trong s\u01a1 \u0111\u1ed3 l\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ea1t t\u1edbi v\u1ec1 m\u1eb7t logic do c\u00e1c \u0111i\u1ec1u ki\u1ec7n tr\u01b0\u1edbc \u0111\u00f3. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra ti\u1ebfng \u1ed3n v\u00e0 g\u00e2y nh\u1ea7m l\u1eabn cho b\u1ea5t k\u1ef3 ai c\u1ed1 g\u1eafng hi\u1ec3u to\u00e0n b\u1ed9 quy tr\u00ecnh l\u00e0m vi\u1ec7c.<\/p>\n

        \n
      • Nh\u1eadn di\u1ec7n:<\/strong> Theo d\u00f5i \u0111\u01b0\u1eddng \u0111i t\u1eeb n\u00fat kh\u1edfi \u0111\u1ea7u. N\u1ebfu m\u1ed9t n\u00fat quy\u1ebft \u0111\u1ecbnh lu\u00f4n \u0111\u1ecbnh tuy\u1ebfn sang m\u1ed9t ph\u00eda, ph\u00eda c\u00f2n l\u1ea1i l\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ea1t t\u1edbi.<\/li>\n
      • Gi\u1ea3i ph\u00e1p:<\/strong> Lo\u1ea1i b\u1ecf nh\u00e1nh kh\u00f4ng th\u1ec3 \u0111\u1ea1t t\u1edbi ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 \u0111\u1ec3 l\u00e0m cho \u0111\u01b0\u1eddng \u0111i tr\u1edf n\u00ean kh\u1ea3 thi.<\/li>\n<\/ul>\n

        \ud83c\udfca Qu\u1ea3n l\u00fd c\u00e1c d\u1ea3i v\u00e0 ph\u00e2n v\u00f9ng<\/h2>\n

        C\u00e1c d\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nh\u00f3m c\u00e1c ho\u1ea1t \u0111\u1ed9ng theo tr\u00e1ch nhi\u1ec7m, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n c\u1ee5 th\u1ec3, th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng ho\u1eb7c b\u1ed9 ph\u1eadn. M\u1eb7c d\u00f9 h\u1eefu \u00edch cho vi\u1ec7c t\u1ed5 ch\u1ee9c, nh\u01b0ng vi\u1ec7c qu\u1ea3n l\u00fd d\u1ea3i k\u00e9m c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 l\u1ed9n x\u1ed9n v\u1ec1 m\u1eb7t th\u1ecb gi\u00e1c.<\/p>\n

        Chia qu\u00e1 m\u1ee9c<\/h3>\n

        T\u1ea1o qu\u00e1 nhi\u1ec1u d\u1ea3i s\u1ebd ph\u00e1 v\u1ee1 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n tr\u00ean trang. \u0110i\u1ec1u n\u00e0y bu\u1ed9c ng\u01b0\u1eddi \u0111\u1ecdc ph\u1ea3i nh\u1ea3y l\u00ean nh\u1ea3y xu\u1ed1ng s\u01a1 \u0111\u1ed3 \u0111\u1ec3 hi\u1ec3u m\u1ed9t chu\u1ed7i s\u1ef1 ki\u1ec7n duy nh\u1ea5t.<\/p>\n

          \n
        • Nguy\u00ean t\u1eafc:<\/strong>H\u1ea1n ch\u1ebf s\u1ed1 l\u01b0\u1ee3ng d\u1ea3i ch\u1ec9 \u1edf c\u00e1c ranh gi\u1edbi ch\u1ee9c n\u0103ng ch\u00ednh. N\u1ebfu m\u1ed9t d\u1ea3i ch\u1ec9 ch\u1ee9a m\u1ed9t ho\u1ea1t \u0111\u1ed9ng, h\u00e3y c\u00e2n nh\u1eafc g\u1ed9p n\u00f3 v\u1edbi d\u1ea3i k\u1ec1 b\u00ean.<\/li>\n
        • Ch\u00e9o lu\u1ed3ng:<\/strong>T\u1ed1i thi\u1ec3u h\u00f3a s\u1ed1 l\u01b0\u1ee3ng \u0111\u01b0\u1eddng lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n ch\u00e9o gi\u1eefa c\u00e1c d\u1ea3i. Vi\u1ec7c ch\u00e9o qu\u00e1 nhi\u1ec1u khi\u1ebfn vi\u1ec7c theo d\u00f5i quy tr\u00ecnh tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/li>\n<\/ul>\n

          T\u00ean g\u1ecdi kh\u00f4ng nh\u1ea5t qu\u00e1n<\/h3>\n

          C\u00e1c nh\u00e3n tr\u00ean d\u1ea3i ph\u1ea3i nh\u1ea5t qu\u00e1n v\u1edbi thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ph\u1ea7n c\u00f2n l\u1ea1i t\u00e0i li\u1ec7u h\u1ec7 th\u1ed1ng. S\u1ef1 m\u01a1 h\u1ed3 trong t\u00ean d\u1ea3i d\u1eabn \u0111\u1ebfn nh\u1eefng c\u00e2u h\u1ecfi v\u1ec1 th\u00e0nh ph\u1ea7n n\u00e0o ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho m\u1ed9t h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3.<\/p>\n\n\n\n\n\n\n\n
          V\u1ea5n \u0111\u1ec1<\/th>\nT\u00e1c \u0111\u1ed9ng<\/th>\nGi\u1ea3i ph\u00e1p<\/th>\n<\/tr>\n<\/thead>\n
          Nh\u00e3n chung chung (v\u00ed d\u1ee5: \u201cH\u1ec7 th\u1ed1ng\u201d)<\/td>\nThi\u1ebfu r\u00f5 r\u00e0ng v\u1ec1 quy\u1ec1n s\u1edf h\u1eefu<\/td>\nS\u1eed d\u1ee5ng t\u00ean th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3<\/td>\n<\/tr>\n
          Tr\u00e1ch nhi\u1ec7m ch\u1ed3ng l\u1ea5n<\/td>\nS\u1ef1 nh\u1ea7m l\u1eabn v\u1ec1 vi\u1ec7c chuy\u1ec3n giao<\/td>\nX\u00e1c \u0111\u1ecbnh r\u00f5 ranh gi\u1edbi gi\u1eefa c\u00e1c d\u1ea3i<\/td>\n<\/tr>\n
          Thi\u1ebfu nh\u00e3n<\/td>\nKh\u00f4ng th\u1ec3 truy v\u1ebft tr\u00e1ch nhi\u1ec7m<\/td>\n\u0110\u1ea3m b\u1ea3o m\u1ed7i d\u1ea3i c\u00f3 m\u1ed9t \u0111\u1ecbnh danh duy nh\u1ea5t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u26a1 X\u1eed l\u00fd t\u00ednh \u0111\u1ed3ng th\u1eddi v\u00e0 song song<\/h2>\n

          C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng y\u00eau c\u1ea7u th\u1ef1c thi song song. UML bi\u1ec3u di\u1ec5n \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1c n\u00fat Fork v\u00e0 Join. Vi\u1ec7c s\u1eed d\u1ee5ng sai c\u00e1c n\u00fat n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y nh\u1ea7m l\u1eabn v\u1ec1 th\u1eddi gian v\u00e0 \u0111\u1ed3ng b\u1ed9.<\/p>\n

          N\u00fat Fork<\/h3>\n

          N\u00fat Fork chia m\u1ed9t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t th\u00e0nh hai ho\u1eb7c nhi\u1ec1u lu\u1ed3ng \u0111\u1ed3ng th\u1eddi. N\u00f3 kh\u00f4ng ng\u1ee5 \u00fd v\u1ec1 th\u1eddi gian; m\u00e0 ng\u1ee5 \u00fd v\u1ec1 t\u00ednh \u0111\u1ed3ng th\u1eddi. T\u1ea5t c\u1ea3 c\u00e1c nh\u00e1nh \u0111\u1ea7u ra \u0111\u1ec1u b\u1eaft \u0111\u1ea7u th\u1ef1c thi \u0111\u1ed3ng th\u1eddi khi \u0111\u1ebfn n\u00fat Fork.<\/p>\n

            \n
          • Ki\u1ec3m tra:<\/strong>\u0110\u1ea3m b\u1ea3o n\u00fat Fork \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng \u0111i tr\u01b0\u1edbc n\u00f3. N\u1ebfu kh\u00f4ng, t\u00ednh \u0111\u1ed3ng th\u1eddi s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u0111\u00fang c\u00e1ch.<\/li>\n
          • Ki\u1ec3m tra:<\/strong>X\u00e1c minh r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c lu\u1ed3ng \u0111\u1ea7u ra t\u1eeb n\u00fat Fork \u0111\u1ec1u h\u1ee3p l\u1ec7. C\u00e1c nh\u00e1nh ch\u1ebft sau n\u00fat Fork l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn.<\/li>\n<\/ul>\n

            N\u00fat G\u1ed9p<\/h3>\n

            N\u00fat G\u1ed9p ch\u1edd cho t\u1ea5t c\u1ea3 c\u00e1c lu\u1ed3ng \u0111\u1ea7u v\u00e0o ho\u00e0n th\u00e0nh tr\u01b0\u1edbc khi cho ph\u00e9p lu\u1ed3ng \u0111\u1ea7u ra ti\u1ebfp t\u1ee5c. \u0110\u00e2y l\u00e0 m\u1ed9t \u0111i\u1ec3m \u0111\u1ed3ng b\u1ed9 h\u00f3a.<\/p>\n

              \n
            • Ki\u1ec3m tra:<\/strong> \u0110\u1ea3m b\u1ea3o n\u00fat g\u1ed9p nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn song song c\u1ea7n thi\u1ebft. N\u1ebfu m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn b\u1ecb thi\u1ebfu, lu\u1ed3ng s\u1ebd ch\u1edd v\u00f4 th\u1eddi h\u1ea1n.<\/li>\n
            • Ki\u1ec3m tra:<\/strong> Tr\u00e1nh s\u1eed d\u1ee5ng n\u00fat g\u1ed9p n\u1ebfu ch\u1ec9 c\u1ea7n m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ec3 ti\u1ebfp t\u1ee5c. \u0110\u00e2y l\u00e0 n\u00fat G\u1ed9p, ch\u1ee9 kh\u00f4ng ph\u1ea3i n\u00fat G\u1ed9p.<\/li>\n<\/ul>\n

              \ud83d\udea6 C\u00e1c n\u00fat Quy\u1ebft \u0111\u1ecbnh v\u00e0 c\u00e1c \u0111i\u1ec3m G\u1ed9p<\/h2>\n

              C\u00e1c n\u00fat quy\u1ebft \u0111\u1ecbnh \u0111\u01b0a v\u00e0o logic nh\u00e1nh d\u1ef1a tr\u00ean \u0111i\u1ec1u ki\u1ec7n. C\u00e1c n\u00fat g\u1ed9p k\u1ebft h\u1ee3p nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn tr\u1edf l\u1ea1i th\u00e0nh m\u1ed9t lu\u1ed3ng duy nh\u1ea5t. Nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c quy t\u1eafc kinh doanh nh\u01b0ng th\u01b0\u1eddng tr\u1edf n\u00ean l\u1ed9n x\u1ed9n.<\/p>\n

              \u0110i\u1ec1u ki\u1ec7n B\u1ea3o v\u1ec7<\/h3>\n

              M\u1ed7i lu\u1ed3ng \u0111\u1ea7u ra t\u1eeb n\u00fat quy\u1ebft \u0111\u1ecbnh n\u00ean c\u00f3 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 (bi\u1ec3u th\u1ee9c Boolean trong d\u1ea5u ngo\u1eb7c vu\u00f4ng). N\u1ebfu \u0111i\u1ec1u ki\u1ec7n b\u1ecb thi\u1ebfu, ng\u01b0\u1eddi \u0111\u1ecdc ph\u1ea3i suy \u0111o\u00e1n logic.<\/p>\n

                \n
              • Y\u00eau c\u1ea7u:<\/strong>T\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn t\u1eeb n\u00fat quy\u1ebft \u0111\u1ecbnh ph\u1ea3i lo\u1ea1i tr\u1eeb l\u1eabn nhau v\u00e0 bao qu\u00e1t to\u00e0n b\u1ed9.<\/li>\n
              • Y\u00eau c\u1ea7u:<\/strong>Kh\u00f4ng \u0111\u1ec3 l\u1ea1i m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n. S\u1eed d\u1ee5ng logic “else” b\u1eb1ng c\u00e1ch \u0111\u1eb7t \u0111i\u1ec1u ki\u1ec7n nh\u01b0 [true] tr\u00ean \u0111\u01b0\u1eddng d\u1eabn cu\u1ed1i c\u00f9ng.<\/li>\n<\/ul>\n

                T\u00ednh \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng d\u1eabn<\/h3>\n

                M\u1ed9t n\u00fat g\u1ed9p mong \u0111\u1ee3i t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ea7u v\u00e0o cu\u1ed1i c\u00f9ng ph\u1ea3i d\u1eabn \u0111\u1ebfn n\u00f3. N\u1ebfu m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn t\u00e1ch ra v\u00e0 kh\u00f4ng bao gi\u1edd quay l\u1ea1i, \u0111\u00f3 l\u00e0 l\u1ed7i logic. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu m\u1ed9t n\u00fat g\u1ed9p nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi logic quy\u1ebft \u0111\u1ecbnh, s\u01a1 \u0111\u1ed3 s\u1ebd kh\u00f4ng nh\u1ea5t qu\u00e1n.<\/p>\n

                \ud83d\udee1\ufe0f X\u1eed l\u00fd ngo\u1ea1i l\u1ec7 trong quy tr\u00ecnh l\u00e0m vi\u1ec7c<\/h2>\n

                C\u00e1c quy tr\u00ecnh chu\u1ea9n th\u01b0\u1eddng hi\u1ebfm khi di\u1ec5n ra \u0111\u00fang nh\u01b0 k\u1ebf ho\u1ea1ch. M\u1ed9t s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng v\u1eefng ch\u1eafc ph\u1ea3i t\u00ednh \u0111\u1ebfn c\u00e1c ngo\u1ea1i l\u1ec7. Tuy nhi\u00ean, x\u1eed l\u00fd ngo\u1ea1i l\u1ec7 th\u01b0\u1eddng b\u1ecb ch\u00f4n v\u00f9i ho\u1eb7c b\u1ecf qua, d\u1eabn \u0111\u1ebfn c\u00e1c m\u00f4 h\u00ecnh kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

                K\u1ebft th\u00fac Ho\u1ea1t \u0111\u1ed9ng so v\u1edbi K\u1ebft th\u00fac Lu\u1ed3ng<\/h3>\n

                Khi x\u1ea3y ra l\u1ed7i, to\u00e0n b\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u00f3 d\u1eebng l\u1ea1i hay ch\u1ec9 \u0111\u01b0\u1eddng d\u1eabn hi\u1ec7n t\u1ea1i? S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng.<\/p>\n

                  \n
                • K\u1ebft th\u00fac Ho\u1ea1t \u0111\u1ed9ng:<\/strong> D\u1eebng t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9. D\u00f9ng cho c\u00e1c l\u1ed7i nghi\u00eam tr\u1ecdng m\u00e0 quy tr\u00ecnh kh\u00f4ng th\u1ec3 ti\u1ebfp t\u1ee5c.<\/li>\n
                • K\u1ebft th\u00fac Lu\u1ed3ng:<\/strong> Ch\u1ec9 d\u1eebng nh\u00e1nh n\u00e0y. D\u00f9ng cho c\u00e1c b\u01b0\u1edbc t\u00f9y ch\u1ecdn ho\u1eb7c l\u1ed7i c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c.<\/li>\n<\/ul>\n

                  C\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u1ecb ng\u1eaft qu\u00e3ng<\/h3>\n

                  \u0110\u00f4i khi m\u1ed9t ho\u1ea1t \u0111\u1ed9ng b\u1ecb ng\u1eaft qu\u00e3ng b\u1edfi m\u1ed9t s\u1ef1 ki\u1ec7n tr\u01b0\u1edbc khi ho\u00e0n th\u00e0nh t\u1ef1 nhi\u00ean. UML cho ph\u00e9p c\u00e1c v\u00f9ng c\u00f3 th\u1ec3 b\u1ecb ng\u1eaft. Nh\u1eefng v\u00f9ng n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng \u0111\u1ec3 ch\u1ec9 ra n\u01a1i ngo\u1ea1i l\u1ec7 c\u00f3 th\u1ec3 bu\u1ed9c chuy\u1ec3n sang x\u1eed l\u00fd l\u1ed7i.<\/p>\n

                    \n
                  • D\u1ea5u hi\u1ec7u th\u1ecb gi\u00e1c:<\/strong> S\u1eed d\u1ee5ng m\u1ed9t h\u1ed9p n\u00e9t \u0111\u1ee9t \u0111\u1ec3 ch\u1ec9 v\u00f9ng c\u00f3 th\u1ec3 b\u1ecb ng\u1eaft.<\/li>\n
                  • K\u00edch ho\u1ea1t:<\/strong> \u0110\u1ea3m b\u1ea3o s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t vi\u1ec7c ng\u1eaft qu\u00e3ng \u0111\u01b0\u1ee3c ghi r\u00f5 r\u00e0ng.<\/li>\n<\/ul>\n

                    \ud83d\udccb Danh s\u00e1ch ki\u1ec3m tra ch\u1ea9n \u0111o\u00e1n cho vi\u1ec7c xem x\u00e9t s\u01a1 \u0111\u1ed3<\/h2>\n

                    Khi xem x\u00e9t m\u1ed9t s\u01a1 \u0111\u1ed3 \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 nh\u1ea7m l\u1eabn, h\u00e3y s\u1eed d\u1ee5ng danh s\u00e1ch ki\u1ec3m tra n\u00e0y \u0111\u1ec3 h\u1ec7 th\u1ed1ng h\u00f3a vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1. B\u1ea3ng n\u00e0y gi\u00fap chu\u1ea9n h\u00f3a quy tr\u00ecnh xem x\u00e9t.<\/p>\n\n\n\n\n\n\n\n\n\n\n
                    Lo\u1ea1i<\/th>\nC\u00e2u h\u1ecfi c\u1ea7n \u0111\u1eb7t ra<\/th>\n\u0110\u1ea1t\/Th\u1ea5t b\u1ea1i<\/th>\n<\/tr>\n<\/thead>\n
                    B\u1eaft \u0111\u1ea7u\/K\u1ebft th\u00fac<\/td>\nC\u00f3 \u0111\u00fang m\u1ed9t n\u00fat kh\u1edfi \u0111\u1ea7u kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n
                    Lu\u1ed3ng<\/td>\nT\u1ea5t c\u1ea3 c\u00e1c lu\u1ed3ng c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n
                    L\u00f4gic<\/td>\nT\u1ea5t c\u1ea3 c\u00e1c n\u00fat quy\u1ebft \u0111\u1ecbnh c\u00f3 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n
                    \u0110\u1ed3ng th\u1eddi<\/td>\nT\u1ea5t c\u1ea3 c\u00e1c nh\u00e1nh t\u00e1ch ra c\u00f3 n\u1ed1i l\u1ea1i \u0111\u00fang c\u00e1ch kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n
                    C\u00e1c l\u00e0n \u0111\u01b0\u1eddng<\/td>\nC\u00e1c tr\u00e1ch nhi\u1ec7m c\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch r\u00f5 r\u00e0ng kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n
                    Nh\u00e3n<\/td>\nC\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0 n\u00fat c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean r\u00f5 r\u00e0ng kh\u00f4ng?<\/td>\nC\u00f3 \/ Kh\u00f4ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                    \ud83e\uddf9 C\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u00e1i c\u1ea5u tr\u00fac \u0111\u1ec3 t\u0103ng t\u00ednh r\u00f5 r\u00e0ng<\/h2>\n

                    Sau khi ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1, vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac s\u01a1 \u0111\u1ed3 l\u00e0 c\u1ea7n thi\u1ebft. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a logic, m\u00e0 l\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1ch bi\u1ec3u di\u1ec5n logic \u0111\u00f3.<\/p>\n

                    Nh\u00f3m v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng con<\/h3>\n

                    N\u1ebfu m\u1ed9t ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean qu\u00e1 d\u00e0y \u0111\u1eb7c, h\u00e3y \u0111\u00f3ng g\u00f3i n\u00f3 th\u00e0nh m\u1ed9t ho\u1ea1t \u0111\u1ed9ng con. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n hi\u1ec3n th\u1ecb lu\u1ed3ng c\u1ea5p cao trong s\u01a1 \u0111\u1ed3 ch\u00ednh v\u00e0 lu\u1ed3ng chi ti\u1ebft trong m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1ed3ng gh\u00e9p.<\/p>\n

                      \n
                    • L\u1ee3i \u00edch:<\/strong>Gi\u1ea3m ti\u1ebfng \u1ed3n th\u1ecb gi\u00e1c tr\u00ean s\u01a1 \u0111\u1ed3 cha.<\/li>\n
                    • L\u1ee3i \u00edch:<\/strong> Cho ph\u00e9p c\u00e1c m\u1ee9c \u0111\u1ed9 chi ti\u1ebft kh\u00e1c nhau cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng kh\u00e1c nhau.<\/li>\n<\/ul>\n

                      Quy t\u1eafc \u0111\u1eb7t t\u00ean<\/h3>\n

                      \u0110\u1eb7t t\u00ean nh\u1ea5t qu\u00e1n gi\u00fap gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c. \u00c1p d\u1ee5ng \u0111\u1ecbnh d\u1ea1ng chu\u1ea9n cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

                        \n
                      • \u0110\u1ecbnh d\u1ea1ng:<\/strong>\u0110\u1ed9ng t\u1eeb + Danh t\u1eeb (v\u00ed d\u1ee5: \u201cT\u00ednh thu\u1ebf\u201d, \u201cX\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng\u201d).<\/li>\n
                      • Nh\u1ea5t qu\u00e1n:<\/strong>Kh\u00f4ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa \u201cT\u00ednh to\u00e1n\u201d v\u00e0 \u201cPh\u00e9p t\u00ednh\u201d cho c\u00f9ng m\u1ed9t kh\u00e1i ni\u1ec7m.<\/li>\n<\/ul>\n

                        \ud83d\udd0d Nh\u1eadn di\u1ec7n m\u1eabu trong th\u1ef1c t\u1ebf<\/h2>\n

                        C\u00e1c m\u1eabu xu\u1ea5t hi\u1ec7n khi xem x\u00e9t nhi\u1ec1u s\u01a1 \u0111\u1ed3. Nh\u1eadn di\u1ec7n nh\u1eefng m\u1eabu n\u00e0y gi\u00fap d\u1ef1 \u0111o\u00e1n n\u01a1i d\u1ec5 x\u1ea3y ra s\u1ef1 nh\u1ea7m l\u1eabn.<\/p>\n

                        Ch\u1ea1y tu\u1ea7n t\u1ef1 so v\u1edbi ch\u1ea1y song song<\/h3>\n

                        C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n th\u01b0\u1eddng m\u00f4 h\u00ecnh h\u00f3a quy tr\u00ecnh d\u01b0\u1edbi d\u1ea1ng tu\u1ea7n t\u1ef1 khi ch\u00fang n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n song song. N\u1ebfu hai h\u00e0nh \u0111\u1ed9ng kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ea7u ra c\u1ee7a nhau, ch\u00fang n\u00ean \u0111\u01b0\u1ee3c t\u00e1ch nh\u00e1nh. Vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u00e1c v\u1ee5 \u0111\u1ed9c l\u1eadp theo c\u00e1ch tu\u1ea7n t\u1ef1 s\u1ebd t\u1ea1o ra c\u00e1c \u0111i\u1ec3m ngh\u1ebdn kh\u00f4ng c\u1ea7n thi\u1ebft trong bi\u1ec3u di\u1ec5n h\u00ecnh \u1ea3nh.<\/p>\n

                        Ho\u1ea1t \u0111\u1ed9ng l\u1ed3ng gh\u00e9p<\/h3>\n

                        Vi\u1ec7c l\u1ed3ng gh\u00e9p s\u00e2u c\u00e1c ho\u1ea1t \u0111\u1ed9ng s\u1ebd t\u1ea1o ra hi\u1ec7u \u1ee9ng \u201cb\u00fan\u201d khi\u1ebfn lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n kh\u00f3 theo d\u00f5i. H\u1ea1n ch\u1ebf \u0111\u1ed9 s\u00e2u l\u1ed3ng gh\u00e9p \u1edf m\u1ee9c hai ho\u1eb7c ba c\u1ea5p. N\u1ebfu s\u00e2u h\u01a1n, h\u00e3y c\u00e2n nh\u1eafc chia logic th\u00e0nh c\u00e1c s\u01a1 \u0111\u1ed3 ri\u00eang bi\u1ec7t.<\/p>\n

                        \ud83d\ude80 Ti\u1ebfn b\u01b0\u1edbc v\u1edbi m\u00f4 h\u00ecnh h\u00f3a t\u1ed1t h\u01a1n<\/h2>\n

                        S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng r\u00f5 r\u00e0ng kh\u00f4ng ch\u1ec9 li\u00ean quan \u0111\u1ebfn th\u1ea9m m\u1ef9; ch\u00fang li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c. Khi m\u1ed9t s\u01a1 \u0111\u1ed3 g\u00e2y nh\u1ea7m l\u1eabn, vi\u1ec7c tri\u1ec3n khai c\u00f3 kh\u1ea3 n\u0103ng s\u1ebd k\u1ebf th\u1eeba s\u1ef1 m\u01a1 h\u1ed3 \u0111\u00f3. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n UML, qu\u1ea3n l\u00fd t\u00ednh \u0111\u1ed3ng th\u1eddi m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng v\u00e0 duy tr\u00ec c\u00e1c lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng nh\u1ea5t qu\u00e1n, b\u1ea1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00f4 h\u00ecnh v\u1eabn l\u00e0 ngu\u1ed3n th\u00f4ng tin \u0111\u00e1ng tin c\u1eady.<\/p>\n

                        L\u00ean l\u1ecbch ki\u1ec3m tra s\u01a1 \u0111\u1ed3 \u0111\u1ecbnh k\u1ef3 b\u1eb1ng danh s\u00e1ch ki\u1ec3m tra \u0111\u01b0\u1ee3c cung c\u1ea5p. Khuy\u1ebfn kh\u00edch c\u00e1c th\u00e0nh vi\u00ean trong nh\u00f3m \u0111\u1eb7t c\u00e2u h\u1ecfi cho t\u1eebng n\u00fat v\u00e0 k\u1ebft n\u1ed1i. S\u1ef1 ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng n\u00e0y ng\u0103n ng\u1eeba t\u00edch t\u1ee5 n\u1ee3 k\u1ef9 thu\u1eadt trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, c\u00e1c s\u01a1 \u0111\u1ed3 c\u0169ng c\u1ea7n ph\u00e1t tri\u1ec3n theo, duy tr\u00ec t\u00ednh r\u00f5 r\u00e0ng v\u00e0 h\u1eefu \u00edch trong su\u1ed1t v\u00f2ng \u0111\u1eddi ph\u1ea7n m\u1ec1m.<\/p>\n","protected":false},"excerpt":{"rendered":"

                        S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i quan tr\u1ecdng gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 logic tri\u1ec3n khai c\u1ee5 th\u1ec3. Ch\u00fang m\u00f4 t\u1ea3 lu\u1ed3ng \u0111i\u1ec1u…<\/p>\n","protected":false},"author":1,"featured_media":647,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Kh\u1eafc ph\u1ee5c c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML g\u00e2y nh\u1ea7m l\u1eabn: M\u1ed9t h\u01b0\u1edbng d\u1eabn","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch s\u1eeda c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML l\u1ed9n x\u1ed9n. 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M\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u1ec1 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n, lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u1ed7i logic.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.viz-tools.com\/vi\/troubleshooting-confusing-uml-activity-diagrams\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kh\u1eafc ph\u1ee5c c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML g\u00e2y nh\u1ea7m l\u1eabn: M\u1ed9t h\u01b0\u1edbng d\u1eabn\" \/>\n<meta property=\"og:description\" content=\"H\u1ecdc c\u00e1ch s\u1eeda c\u00e1c s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng UML l\u1ed9n x\u1ed9n. 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