{"id":1782,"date":"2026-03-30T06:42:38","date_gmt":"2026-03-30T06:42:38","guid":{"rendered":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/"},"modified":"2026-03-30T06:42:38","modified_gmt":"2026-03-30T06:42:38","slug":"data-flow-diagrams-legacy-migration-guide","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/","title":{"rendered":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169"},"content":{"rendered":"

Chuy\u1ec3n c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh then ch\u1ed1t t\u1eeb c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u0169 sang c\u00e1c n\u1ec1n t\u1ea3ng hi\u1ec7n \u0111\u1ea1i l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn. \u0110\u1ed9 ph\u1ee9c t\u1ea1p th\u01b0\u1eddng kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf m\u00e3 ngu\u1ed3n, m\u00e0 c\u00f2n \u1edf logic \u1ea9n ch\u1ee9a quy\u1ebft \u0111\u1ecbnh c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng. S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd ki\u1ebfn tr\u00fac cho qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y. Ch\u00fang cung c\u1ea5p h\u00ecnh \u1ea3nh tr\u1ef1c quan v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u nh\u1eadp v\u00e0o, \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 xu\u1ea5t ra kh\u1ecfi h\u1ec7 th\u1ed1ng, tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c giai \u0111o\u1ea1n ph\u00e2n t\u00edch v\u00e0 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n

Khi l\u00e0m vi\u1ec7c v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng c\u0169, t\u00e0i li\u1ec7u th\u01b0\u1eddng kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c ho\u00e0n to\u00e0n kh\u00f4ng t\u1ed3n t\u1ea1i. Trong nh\u1eefng t\u00ecnh hu\u1ed1ng n\u00e0y, k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c l\u1ea1i tr\u1edf n\u00ean c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u00e1i t\u1ea1o l\u1ea1i c\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng d\u1eef li\u1ec7u. H\u01b0\u1edbng d\u1eabn n\u00e0y chi ti\u1ebft c\u00e1ch \u00e1p d\u1ee5ng DFD \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o chi\u1ebfn l\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c ch\u1eb7t ch\u1ebd, minh b\u1ea1ch v\u00e0 th\u00e0nh c\u00f4ng. Ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c l\u1edbp k\u1ef9 thu\u1eadt, quy tr\u00ecnh \u00e1nh x\u1ea1 v\u00e0 c\u00e1c b\u01b0\u1edbc x\u00e1c th\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u trong su\u1ed1t v\u00f2ng \u0111\u1eddi h\u1ec7 th\u1ed1ng.<\/p>\n

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

\ud83e\udde9 Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong b\u1ed1i c\u1ea3nh n\u00e0y<\/h2>\n

S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda v\u1ec1 d\u00f2ng ch\u1ea3y d\u1eef li\u1ec7u qua m\u1ed9t h\u1ec7 th\u1ed1ng th\u00f4ng tin. Kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 l\u01b0u \u0111\u1ed3, v\u1ed1n t\u1eadp trung v\u00e0o lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh logic, DFD nh\u1ea5n m\u1ea1nh v\u00e0o s\u1ef1 di chuy\u1ec3n c\u1ee7a d\u1eef li\u1ec7u. Trong b\u1ed1i c\u1ea3nh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169, c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y gi\u00fap c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n hi\u1ec3u r\u00f5 c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c module kh\u00e1c nhau v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i.<\/p>\n

C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a DFD lu\u00f4n gi\u1eef nguy\u00ean d\u00f9 c\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng c\u00f3 kh\u00e1c nhau:<\/p>\n

    \n
  • Quy tr\u00ecnh:<\/strong>S\u1ef1 bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o th\u00e0nh d\u1eef li\u1ec7u \u0111\u1ea7u ra. Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u0169, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ee7 t\u1ee5c l\u01b0u tr\u1eef, m\u1ed9t c\u00f4ng vi\u1ec7c h\u00e0ng lo\u1ea1t ho\u1eb7c m\u1ed9t quy t\u1eafc kinh doanh \u0111\u01b0\u1ee3c nh\u00fang trong m\u00e3 ngu\u1ed3n.<\/li>\n
  • Kho d\u1eef li\u1ec7u:<\/strong>M\u1ed9t kho l\u01b0u tr\u1eef n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u \u0111\u1ec3 truy xu\u1ea5t sau n\u00e0y. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7, m\u1ed9t t\u1ec7p ph\u1eb3ng ho\u1eb7c m\u1ed9t t\u1ec7p tu\u1ea7n t\u1ef1 tr\u00ean mainframe.<\/li>\n
  • Th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i:<\/strong>M\u1ed9t ngu\u1ed3n ho\u1eb7c \u0111\u00edch n\u1eb1m ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng. Bao g\u1ed3m ng\u01b0\u1eddi d\u00f9ng, c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c ho\u1eb7c c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd.<\/li>\n
  • Lu\u1ed3ng d\u1eef li\u1ec7u:<\/strong>S\u1ef1 di chuy\u1ec3n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c quy tr\u00ecnh, kho l\u01b0u tr\u1eef v\u00e0 th\u1ef1c th\u1ec3. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho c\u00e1c g\u00f3i d\u1eef li\u1ec7u ho\u1eb7c b\u1ea3n ghi th\u1ef1c s\u1ef1 \u0111ang \u0111\u01b0\u1ee3c chuy\u1ec3n giao.<\/li>\n<\/ul>\n

    Khi ph\u00e2n t\u00edch m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng c\u0169, vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y gi\u00fap \u0111\u1ed9i ng\u0169 \u00e1nh x\u1ea1 ch\u00ednh x\u00e1c tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i. M\u00f4 h\u00ecnh \u201cHi\u1ec7n t\u1ea1i\u201d n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac \u201cT\u01b0\u01a1ng lai\u201d.<\/p>\n

    \ud83d\udcc9 Th\u1ee9 b\u1eadc c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u<\/h2>\n

    \u0110\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p, DFD th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng kh\u00e1c nhau. M\u1ed7i c\u1ea5p \u0111\u1ed9 cung c\u1ea5p m\u1ed9t m\u1ee9c \u0111\u1ed9 chi ti\u1ebft kh\u00e1c nhau. Trong d\u1ef1 \u00e1n chuy\u1ec3n \u0111\u1ed5i, vi\u1ec7c \u0111i qua c\u00e1c c\u1ea5p \u0111\u1ed9 n\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng \u0111\u1ea3m b\u1ea3o kh\u00f4ng b\u1ecf s\u00f3t b\u1ea5t k\u1ef3 tuy\u1ebfn \u0111\u01b0\u1eddng d\u1eef li\u1ec7u quan tr\u1ecdng n\u00e0o.<\/p>\n

    1. S\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh (C\u1ea5p \u0111\u1ed9 0)<\/h3>\n

    S\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh cung c\u1ea5p m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng cao nh\u1ea5t. N\u00f3 th\u1ec3 hi\u1ec7n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng nh\u01b0 m\u1ed9t quy tr\u00ecnh duy nh\u1ea5t v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ee7a n\u00f3 v\u1edbi c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i. V\u1ec1 m\u1ee5c \u0111\u00edch chuy\u1ec3n \u0111\u1ed5i, s\u01a1 \u0111\u1ed3 n\u00e0y tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cD\u1eef li\u1ec7u n\u00e0o v\u00e0o h\u1ec7 th\u1ed1ng, v\u00e0 d\u1eef li\u1ec7u n\u00e0o ra kh\u1ecfi h\u1ec7 th\u1ed1ng?\u201d<\/p>\n

      \n
    • Ph\u1ea1m vi:<\/strong>X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi c\u1ee7a \u1ee9ng d\u1ee5ng c\u0169.<\/li>\n
    • \u0110\u1ea7u v\u00e0o:<\/strong>X\u00e1c \u0111\u1ecbnh t\u1ea5t c\u1ea3 c\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t b\u00ean ngo\u00e0i ho\u1eb7c ngu\u1ed3n d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o.<\/li>\n
    • \u0110\u1ea7u ra:<\/strong>X\u00e1c \u0111\u1ecbnh t\u1ea5t c\u1ea3 c\u00e1c b\u00e1o c\u00e1o, tin nh\u1eafn ho\u1eb7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c g\u1eedi ra.<\/li>\n<\/ul>\n

      2. S\u01a1 \u0111\u1ed3 c\u1ea5p \u0111\u1ed9 0 (Ph\u00e2n r\u00e3 ch\u1ee9c n\u0103ng)<\/h3>\n

      M\u1ee9c \u0111\u1ed9 n\u00e0y chia quy tr\u00ecnh duy nh\u1ea5t trong s\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh th\u00e0nh c\u00e1c ti\u1ec3u quy tr\u00ecnh ch\u00ednh. N\u00f3 ti\u1ebft l\u1ed9 c\u00e1c khu v\u1ef1c ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng c\u0169. V\u00ed d\u1ee5, m\u1ed9t h\u1ec7 th\u1ed1ng t\u00e0i ch\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh \u201cX\u1eed l\u00fd \u0111\u01a1n h\u00e0ng\u201d, \u201cH\u00f3a \u0111\u01a1n\u201d v\u00e0 \u201cQu\u1ea3n l\u00fd t\u1ed3n kho\u201d.<\/p>\n

        \n
      • R\u00f5 r\u00e0ng:<\/strong>Gi\u00fap c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u r\u00f5 c\u00e1c kh\u1ed1i ch\u1ee9c n\u0103ng ch\u00ednh.<\/li>\n
      • Ph\u00e2n r\u00e3:<\/strong> Chu\u1ea9n b\u1ecb n\u1ec1n t\u1ea3ng cho vi\u1ec7c ph\u00e2n t\u00edch s\u00e2u h\u01a1n \u1edf M\u1ee9c 1.<\/li>\n
      • Ph\u1ee5 thu\u1ed9c:<\/strong>Hi\u1ec3n th\u1ecb c\u00e1ch c\u00e1c ch\u1ee9c n\u0103ng c\u1ea5p cao t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau.<\/li>\n<\/ul>\n

        3. S\u01a1 \u0111\u1ed3 M\u1ee9c 1 v\u00e0 M\u1ee9c 2 (Logic chi ti\u1ebft)<\/h3>\n

        C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y \u0111i s\u00e2u v\u00e0o logic c\u1ee5 th\u1ec3 b\u00ean trong c\u00e1c qu\u00e1 tr\u00ecnh con ch\u00ednh. Ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ea7n hi\u1ec3u ch\u00ednh x\u00e1c c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i. M\u1ee9c \u0111\u1ed9 n\u00e0y r\u1ea5t quan tr\u1ecdng khi di chuy\u1ec3n logic kinh doanh ph\u1ee9c t\u1ea1p.<\/p>\n

          \n
        • \u0110\u1ed9 chi ti\u1ebft:<\/strong>Chi ti\u1ebft c\u00e1c ph\u00e9p t\u00ednh c\u1ee5 th\u1ec3, ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 v\u00e0 logic \u0111\u1ecbnh tuy\u1ebfn.<\/li>\n
        • Kho d\u1eef li\u1ec7u:<\/strong>X\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00e1c b\u1ea3ng ho\u1eb7c t\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c \u0111\u1ecdc ho\u1eb7c ghi.<\/li>\n
        • Lu\u1ed3ng logic:<\/strong>X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m ra quy\u1ebft \u0111\u1ecbnh b\u00ean trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n

          \ud83d\udd04 Quy tr\u00ecnh di chuy\u1ec3n s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD)<\/h2>\n

          Vi\u1ec7c t\u00edch h\u1ee3p DFD v\u00e0o quy tr\u00ecnh di chuy\u1ec3n \u0111\u00f2i h\u1ecfi m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac. Quy tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng m\u1edbi ph\u1ea3n \u00e1nh \u0111\u00fang kh\u1ea3 n\u0103ng ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u0169 trong khi c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec.<\/p>\n

          Giai \u0111o\u1ea1n 1: Ph\u00e1t hi\u1ec7n v\u00e0 t\u00e1i t\u1ea1o ng\u01b0\u1ee3c \ud83d\udd0d<\/h3>\n

          B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 l\u00e0m r\u00f5 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng hi\u1ec7n t\u1ea1i. V\u00ec t\u00e0i li\u1ec7u c\u0169 th\u01b0\u1eddng \u0111\u00e3 l\u1ed7i th\u1eddi, nh\u00f3m ph\u1ea3i ph\u00e2n t\u00edch m\u00e3 ngu\u1ed3n v\u00e0 l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 suy ra lu\u1ed3ng d\u1eef li\u1ec7u.<\/p>\n

            \n
          • Ph\u00e2n t\u00edch m\u00e3 ngu\u1ed3n:<\/strong>Xem x\u00e9t m\u00e3 ngu\u1ed3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1ecdc v\u00e0 ghi.<\/li>\n
          • Xem x\u00e9t l\u01b0\u1ee3c \u0111\u1ed3 c\u01a1 s\u1edf d\u1eef li\u1ec7u:<\/strong>Li\u00ean k\u1ebft c\u00e1c b\u1ea3ng v\u1edbi c\u00e1c kho d\u1eef li\u1ec7u trong s\u01a1 \u0111\u1ed3.<\/li>\n
          • Ph\u00e2n t\u00edch nh\u1eadt k\u00fd:<\/strong>Xem x\u00e9t nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u01b0\u01a1ng t\u00e1c b\u00ean ngo\u00e0i v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t d\u1eef li\u1ec7u.<\/li>\n
          • Ph\u1ecfng v\u1ea5n c\u00e1c b\u00ean li\u00ean quan:<\/strong>X\u00e1c nh\u1eadn c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1edbi nh\u1eefng ng\u01b0\u1eddi d\u00f9ng l\u00e2u n\u0103m c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n

            Giai \u0111o\u1ea1n 2: T\u00e0i li\u1ec7u h\u00f3a v\u00e0 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a \ud83d\udcdd<\/h3>\n

            M\u1ed9t khi c\u00e1c \u0111\u01b0\u1eddng \u0111i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a m\u1ed9t c\u00e1ch ch\u00ednh th\u1ee9c. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t ngu\u1ed3n th\u00f4ng tin duy nh\u1ea5t cho nh\u00f3m di chuy\u1ec3n.<\/p>\n

              \n
            • T\u1ea1o s\u01a1 \u0111\u1ed3 DFD hi\u1ec7n t\u1ea1i (As-Is):<\/strong>T\u00e0i li\u1ec7u h\u00f3a tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/li>\n
            • X\u00e1c \u0111\u1ecbnh c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u b\u1ecb b\u1ecf r\u01a1i:<\/strong>T\u00ecm c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c \u0111i\u1ec3m \u0111\u1ebfn n\u00e0o \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n
            • Nh\u1ea5n m\u1ea1nh c\u00e1c r\u1ee7i ro:<\/strong> Ghi ch\u00fa c\u00e1c khu v\u1ef1c n\u01a1i t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u b\u1ecb \u0111e d\u1ecda trong qu\u00e1 tr\u00ecnh chuy\u1ec3n giao.<\/li>\n
            • Ti\u00eau chu\u1ea9n h\u00f3a k\u00fd hi\u1ec7u:<\/strong> \u0110\u1ea3m b\u1ea3o to\u00e0n b\u1ed9 \u0111\u1ed9i ng\u0169 s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t k\u00fd hi\u1ec7u v\u00e0 quy \u01b0\u1edbc.<\/li>\n<\/ul>\n

              Giai \u0111o\u1ea1n 3: Ph\u00e2n t\u00edch kho\u1ea3ng tr\u1ed1ng v\u00e0 Chuy\u1ec3n \u0111\u1ed5i \ud83d\udee0\ufe0f<\/h3>\n

              Khi s\u01a1 \u0111\u1ed3 ‘Hi\u1ec7n t\u1ea1i’ \u0111\u00e3 ho\u00e0n t\u1ea5t, \u0111\u1ed9i ng\u0169 s\u1ebd thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac ‘T\u01b0\u01a1ng lai’. Giai \u0111o\u1ea1n n\u00e0y bao g\u1ed3m vi\u1ec7c so s\u00e1nh c\u00e1c lu\u1ed3ng c\u0169 v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng m\u1edbi.<\/p>\n

                \n
              • Chuy\u1ec3n \u0111\u1ed5i t\u1eeb c\u0169 sang m\u1edbi:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1ch m\u1ed7i quy tr\u00ecnh c\u0169 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang n\u1ec1n t\u1ea3ng m\u1edbi.<\/li>\n
              • T\u1ed1i \u01b0u h\u00f3a lu\u1ed3ng:<\/strong> Lo\u1ea1i b\u1ecf c\u00e1c b\u01b0\u1edbc kh\u00f4ng c\u1ea7n thi\u1ebft ho\u1eb7c c\u00e1c kho d\u1eef li\u1ec7u tr\u00f9ng l\u1eb7p.<\/li>\n
              • X\u00e1c \u0111\u1ecbnh giao di\u1ec7n:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c d\u1ecbch v\u1ee5 m\u1edbi s\u1ebd giao ti\u1ebfp v\u1edbi c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i.<\/li>\n
              • X\u00e1c minh logic:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c quy t\u1eafc kinh doanh \u0111\u01b0\u1ee3c duy tr\u00ec nh\u1ea5t qu\u00e1n trong su\u1ed1t qu\u00e1 tr\u00ecnh di d\u1eddi.<\/li>\n<\/ul>\n

                \u26a0\ufe0f Nh\u1eefng th\u00e1ch th\u1ee9c ph\u1ed5 bi\u1ebfn trong s\u01a1 \u0111\u1ed3 DFD h\u1ec7 th\u1ed1ng c\u0169<\/h2>\n

                L\u00e0m vi\u1ec7c v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u0169 mang l\u1ea1i nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1eb7c bi\u1ec7t. C\u00e1c s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp v\u1edbi m\u00e3 ngu\u1ed3n, ho\u1eb7c m\u00e3 ngu\u1ed3n c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3n \u00e1nh \u0111\u00fang th\u1ef1c t\u1ebf kinh doanh. Nh\u1eadn di\u1ec7n nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y s\u1edbm s\u1ebd ng\u0103n ng\u1eeba nh\u1eefng l\u1ed7i t\u1ed1n k\u00e9m.<\/p>\n\n\n\n\n\n\n\n\n\n
                Th\u00e1ch th\u1ee9c<\/th>\nT\u00e1c \u0111\u1ed9ng \u0111\u1ebfn qu\u00e1 tr\u00ecnh di d\u1eddi<\/th>\nChi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u<\/th>\n<\/tr>\n<\/thead>\n
                H\u1ec7 th\u1ed1ng b\u00f3ng ma<\/strong><\/td>\nC\u00e1c b\u1ea3ng t\u00ednh th\u1ee7 c\u00f4ng ho\u1eb7c c\u00f4ng c\u1ee5 ph\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u01b0\u1ee3t qua h\u1ec7 th\u1ed1ng ch\u00ednh.<\/td>\nPh\u1ecfng v\u1ea5n ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 t\u00ecm ngu\u1ed3n d\u1eef li\u1ec7u kh\u00f4ng ch\u00ednh th\u1ee9c.<\/td>\n<\/tr>\n
                Logic \u0111\u01b0\u1ee3c ghi c\u1ee9ng<\/strong><\/td>\nC\u00e1c quy t\u1eafc kinh doanh \u0111\u01b0\u1ee3c nh\u00fang trong m\u00e3 ngu\u1ed3n thay v\u00ec c\u1ea5u h\u00ecnh.<\/td>\nTheo d\u00f5i c\u00e1c \u0111\u01b0\u1eddng \u0111i th\u1ef1c thi m\u00e3 \u0111\u1ec3 tr\u00edch xu\u1ea5t logic.<\/td>\n<\/tr>\n
                C\u00e1c h\u00f2m d\u1eef li\u1ec7u<\/strong><\/td>\nD\u1eef li\u1ec7u r\u1ea3i r\u00e1c tr\u00ean nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00f4ng t\u01b0\u01a1ng th\u00edch.<\/td>\nT\u1ea1o m\u00f4 h\u00ecnh d\u1eef li\u1ec7u th\u1ed1ng nh\u1ea5t tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh \u00e1nh x\u1ea1.<\/td>\n<\/tr>\n
                T\u00e0i li\u1ec7u kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7<\/strong><\/td>\nThi\u1ebfu s\u01a1 \u0111\u1ed3 ho\u1eb7c m\u00f4 t\u1ea3 \u0111\u00e3 l\u1ed7i th\u1eddi.<\/td>\nTh\u1ef1c hi\u1ec7n k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i t\u00e0i li\u1ec7u.<\/td>\n<\/tr>\n
                N\u1ee3 k\u1ef9 thu\u1eadt<\/strong><\/td>\nC\u00e1c c\u1ea5u tr\u00fac c\u0169 k\u1ef9 kh\u00f4ng hi\u1ec7u qu\u1ea3 ho\u1eb7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/td>\nT\u00e1i c\u1ea5u tr\u00fac trong qu\u00e1 tr\u00ecnh di d\u1eddi thay v\u00ec di chuy\u1ec3n nguy\u00ean b\u1ea3n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                \ud83d\uddfa\ufe0f Chi\u1ebfn l\u01b0\u1ee3c \u00e1nh x\u1ea1: T\u1eeb c\u0169 k\u1ef9 \u0111\u1ebfn hi\u1ec7n \u0111\u1ea1i<\/h2>\n

                Chuy\u1ec3n \u0111\u1ed5i m\u1ed9t s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u c\u0169 k\u1ef9 sang ki\u1ebfn tr\u00fac hi\u1ec7n \u0111\u1ea1i \u0111\u00f2i h\u1ecfi c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u00e1nh x\u1ea1 c\u1ee5 th\u1ec3. M\u1ee5c ti\u00eau l\u00e0 b\u1ea3o to\u00e0n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u trong khi th\u00edch nghi v\u1edbi c\u00e1c m\u1eabu ki\u1ebfn tr\u00fac m\u1edbi.<\/p>\n

                \u00c1nh x\u1ea1 tr\u1ef1c ti\u1ebfp (Di chuy\u1ec3n nguy\u00ean b\u1ea3n)<\/h3>\n

                Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u1ed1 g\u1eafng sao ch\u00e9p c\u1ea5u tr\u00fac DFD hi\u1ec7n c\u00f3 m\u1ed9t c\u00e1ch g\u1ea7n nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng m\u1edbi. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y h\u1eefu \u00edch khi logic kinh doanh ph\u1ee9c t\u1ea1p v\u00e0 thay \u0111\u1ed5i n\u00f3 s\u1ebd g\u00e2y r\u1ee7i ro.<\/p>\n

                  \n
                • \u01afu \u0111i\u1ec3m:<\/strong>R\u1ee7i ro suy gi\u1ea3m ch\u1ee9c n\u0103ng th\u1ea5p; quen thu\u1ed9c v\u1edbi ng\u01b0\u1eddi d\u00f9ng.<\/li>\n
                • Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Kh\u00f4ng t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c l\u1ee3i \u00edch c\u1ee7a c\u00f4ng ngh\u1ec7 m\u1edbi; mang theo c\u00e1c b\u1ea5t hi\u1ec7u qu\u1ea3 t\u1eeb h\u1ec7 th\u1ed1ng c\u0169.<\/li>\n<\/ul>\n

                  \u00c1nh x\u1ea1 \u0111\u00e3 t\u00e1i c\u1ea5u tr\u00fac<\/h3>\n

                  Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00e2n t\u00edch DFD \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m b\u1ea5t hi\u1ec7u qu\u1ea3. C\u00e1c quy tr\u00ecnh \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c l\u1ea1i, v\u00e0 c\u00e1c kho d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u1ea1i cho n\u1ec1n t\u1ea3ng m\u1edbi.<\/p>\n

                    \n
                  • \u01afu \u0111i\u1ec3m:<\/strong>C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng; lo\u1ea1i b\u1ecf n\u1ee3 k\u1ef9 thu\u1eadt.<\/li>\n
                  • Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>R\u1ee7i ro cao h\u01a1n; y\u00eau c\u1ea7u ki\u1ec3m th\u1eed v\u00e0 x\u00e1c th\u1ef1c k\u1ef9 l\u01b0\u1ee1ng.<\/li>\n<\/ul>\n

                    \u00c1nh x\u1ea1 k\u1ebft h\u1ee3p<\/h3>\n

                    S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p. C\u00e1c lu\u1ed3ng ch\u00ednh y\u1ebfu \u0111\u01b0\u1ee3c gi\u1eef nguy\u00ean, trong khi c\u00e1c lu\u1ed3ng kh\u00f4ng quan tr\u1ecdng ho\u1eb7c ph\u1ee5 tr\u1ee3 \u0111\u01b0\u1ee3c hi\u1ec7n \u0111\u1ea1i h\u00f3a.<\/p>\n

                      \n
                    • \u01afu \u0111i\u1ec3m:<\/strong>C\u00e2n b\u1eb1ng gi\u1eefa r\u1ee7i ro v\u00e0 \u0111\u1ed5i m\u1edbi.<\/li>\n
                    • Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Y\u00eau c\u1ea7u qu\u1ea3n l\u00fd thay \u0111\u1ed5i c\u1ea9n tr\u1ecdng.<\/li>\n<\/ul>\n

                      \u2705 C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho t\u00e0i li\u1ec7u<\/h2>\n

                      Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u ch\u1ec9 l\u00e0 m\u1ed9t n\u1eeda cu\u1ed9c chi\u1ebfn. Duy tr\u00ec ch\u00fang trong su\u1ed1t v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 th\u1ed1ng nh\u1ea5t trong \u0111\u1ed9i nh\u00f3m.<\/p>\n

                        \n
                      • Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong>Xem s\u01a1 \u0111\u1ed3 nh\u01b0 m\u00e3 ngu\u1ed3n. L\u01b0u tr\u1eef ch\u00fang trong kho \u0111\u1ec3 theo d\u00f5i c\u00e1c thay \u0111\u1ed5i theo th\u1eddi gian.<\/li>\n
                      • Quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean:<\/strong>S\u1eed d\u1ee5ng t\u00ean r\u00f5 r\u00e0ng, m\u00f4 t\u1ea3 cho t\u1ea5t c\u1ea3 c\u00e1c quy tr\u00ecnh v\u00e0 kho d\u1eef li\u1ec7u.<\/li>\n
                      • T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c k\u00fd hi\u1ec7u v\u00e0 k\u00fd ph\u00e1p \u0111\u01b0\u1ee3c duy tr\u00ec nh\u1ea5t qu\u00e1n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3.<\/li>\n
                      • Kh\u1ea3 n\u0103ng truy c\u1eadp:<\/strong>Cung c\u1ea5p s\u01a1 \u0111\u1ed3 cho t\u1ea5t c\u1ea3 c\u00e1c b\u00ean li\u00ean quan, ch\u1ee9 kh\u00f4ng ch\u1ec9 nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt.<\/li>\n
                      • V\u00f2ng ki\u1ec3m tra:<\/strong>L\u00ean l\u1ecbch ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 khi y\u00eau c\u1ea7u thay \u0111\u1ed5i.<\/li>\n<\/ul>\n

                        \ud83e\uddea X\u00e1c th\u1ef1c v\u00e0 Ki\u1ec3m th\u1eed<\/h2>\n

                        Giai \u0111o\u1ea1n cu\u1ed1i c\u00f9ng khi s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) trong qu\u00e1 tr\u00ecnh di d\u1eddi l\u00e0 x\u00e1c th\u1ef1c. H\u1ec7 th\u1ed1ng m\u1edbi ph\u1ea3i t\u1ea1o ra c\u00f9ng m\u1ed9t \u0111\u1ea7u ra cho c\u00f9ng m\u1ed9t \u0111\u1ea7u v\u00e0o nh\u01b0 h\u1ec7 th\u1ed1ng c\u0169.<\/p>\n

                        \u0110i\u1ec1u tra d\u1eef li\u1ec7u<\/h3>\n

                        Ti\u1ebfn h\u00e0nh c\u00e1c bu\u1ed5i \u0111i th\u1ef1c t\u1ebf n\u01a1i \u0111\u1ed9i ng\u0169 theo d\u00f5i m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 qua h\u1ec7 th\u1ed1ng m\u1edbi v\u00e0 so s\u00e1nh v\u1edbi s\u01a1 \u0111\u1ed3 DFD.<\/p>\n

                          \n
                        • X\u00e1c minh \u0110\u1ea7u v\u00e0o:<\/strong>\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u v\u00e0o qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c thu th\u1eadp ch\u00ednh x\u00e1c.<\/li>\n
                        • X\u00e1c minh \u0110\u1ea7u ra:<\/strong>\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u r\u1eddi kh\u1ecfi qu\u00e1 tr\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi mong \u0111\u1ee3i.<\/li>\n
                        • X\u00e1c minh Kho l\u01b0u tr\u1eef:<\/strong>\u0110\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef theo \u0111\u1ecbnh d\u1ea1ng \u0111\u00fang.<\/li>\n<\/ul>\n

                          So s\u00e1nh T\u1ef1 \u0111\u1ed9ng<\/h3>\n

                          S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 \u0111\u1ec3 so s\u00e1nh \u0111\u1ea7u ra c\u1ee7a h\u1ec7 th\u1ed1ng c\u0169 v\u00e0 h\u1ec7 th\u1ed1ng m\u1edbi v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed gi\u1ed1ng nhau.<\/p>\n

                            \n
                          • Ki\u1ec3m th\u1eed h\u1ed3i quy:<\/strong>Ch\u1ea1y c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed l\u1ecbch s\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng m\u1ea5t ch\u1ee9c n\u0103ng n\u00e0o.<\/li>\n
                          • Ph\u00e2n t\u00edch ch\u00eanh l\u1ec7ch:<\/strong>X\u00e1c \u0111\u1ecbnh b\u1ea5t k\u1ef3 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0o v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng.<\/li>\n
                          • \u0110\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t chu\u1ea9n:<\/strong>\u0110\u1ea3m b\u1ea3o c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi nhanh h\u01a1n c\u00e1c lu\u1ed3ng c\u0169.<\/li>\n<\/ul>\n

                            \ud83d\udd17 T\u00edch h\u1ee3p v\u1edbi c\u00e1c t\u00e0i li\u1ec7u kh\u00e1c<\/h2>\n

                            S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) kh\u00f4ng t\u1ed3n t\u1ea1i m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. Ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi c\u00e1c t\u00e0i li\u1ec7u kh\u00e1c \u0111\u1ec3 cung c\u1ea5p b\u1ee9c tranh to\u00e0n di\u1ec7n.<\/p>\n

                              \n
                            • T\u1eeb \u0111i\u1ec3n d\u1eef li\u1ec7u:<\/strong>X\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac v\u00e0 \u00fd ngh\u0129a c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tham chi\u1ebfu trong s\u01a1 \u0111\u1ed3 DFD.<\/li>\n
                            • T\u00e0i li\u1ec7u ki\u1ec3m so\u00e1t giao di\u1ec7n:<\/strong>X\u00e1c \u0111\u1ecbnh chi ti\u1ebft k\u1ef9 thu\u1eadt c\u1ee7a c\u00e1c t\u00edch h\u1ee3p b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong s\u01a1 \u0111\u1ed3.<\/li>\n
                            • M\u00f4 h\u00ecnh quy tr\u00ecnh kinh doanh<\/strong> \u0110\u1ed3ng b\u1ed9 h\u00f3a s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u1edbi c\u00e1c quy tr\u00ecnh kinh doanh c\u1ea5p cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 nh\u1ea5t qu\u00e1n.<\/li>\n
                            • Ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt:<\/strong>\u0110\u1ea3m b\u1ea3o c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u b\u1ea3o m\u1eadt, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi th\u00f4ng tin nh\u1ea1y c\u1ea3m.<\/li>\n<\/ul>\n

                              \ud83d\udcc8 \u0110o l\u01b0\u1eddng th\u00e0nh c\u00f4ng<\/h2>\n

                              L\u00e0m sao b\u1ea1n bi\u1ebft vi\u1ec7c di d\u1eddi \u0111\u00e3 th\u00e0nh c\u00f4ng? S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111o l\u01b0\u1eddng k\u1ebft qu\u1ea3.<\/p>\n

                                \n
                              • \u0110\u1ed9 \u0111\u1ea7y \u0111\u1ee7:<\/strong>Ch\u00fang ta \u0111\u00e3 ghi nh\u1eadn \u0111\u1ea7y \u0111\u1ee7 t\u1ea5t c\u1ea3 c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong h\u1ec7 th\u1ed1ng c\u0169 ch\u01b0a?<\/li>\n
                              • \u0110\u1ed9 ch\u00ednh x\u00e1c:<\/strong>C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi logic kinh doanh d\u1ef1 ki\u1ebfn kh\u00f4ng?<\/li>\n
                              • Hi\u1ec7u qu\u1ea3:<\/strong>Ch\u00fang ta \u0111\u00e3 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng b\u01b0\u1edbc \u0111i ho\u1eb7c c\u00e1c kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p ch\u01b0a?<\/li>\n
                              • Kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec:<\/strong>S\u01a1 \u0111\u1ed3 m\u1edbi c\u00f3 d\u1ec5 \u0111\u1ecdc v\u00e0 c\u1eadp nh\u1eadt h\u01a1n s\u01a1 \u0111\u1ed3 c\u0169 kh\u00f4ng?<\/li>\n<\/ul>\n

                                \ud83d\udee1\ufe0f C\u00e1c y\u1ebfu t\u1ed1 b\u1ea3o m\u1eadt trong s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD)<\/h2>\n

                                B\u1ea3o m\u1eadt ph\u1ea3i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD). M\u1ed7i lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111i\u1ec3m ti\u1ec1m \u1ea9n b\u1ecb x\u00e2m nh\u1eadp.<\/p>\n

                                  \n
                                • M\u00e3 h\u00f3a:<\/strong>Ghi ch\u00fa c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u y\u00eau c\u1ea7u m\u00e3 h\u00f3a khi truy\u1ec1n t\u1ea3i ho\u1eb7c khi l\u01b0u tr\u1eef.<\/li>\n
                                • X\u00e1c th\u1ef1c:<\/strong>X\u00e1c \u0111\u1ecbnh c\u00e1c th\u1ef1c th\u1ec3 n\u00e0o c\u1ea7n x\u00e1c th\u1ef1c tr\u01b0\u1edbc khi truy c\u1eadp d\u1eef li\u1ec7u.<\/li>\n
                                • Ki\u1ec3m to\u00e1n:<\/strong>X\u00e1c \u0111\u1ecbnh c\u00e1c lu\u1ed3ng n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c ghi l\u1ea1i v\u00ec m\u1ee5c \u0111\u00edch tu\u00e2n th\u1ee7.<\/li>\n
                                • Ki\u1ec3m so\u00e1t truy c\u1eadp:<\/strong>X\u00e1c \u0111\u1ecbnh ai c\u00f3 th\u1ec3 \u0111\u1ecdc ho\u1eb7c ghi v\u00e0o c\u00e1c kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

                                  \ud83e\udd1d H\u1ee3p t\u00e1c v\u00e0 giao ti\u1ebfp<\/h2>\n

                                  S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) l\u00e0 c\u00f4ng c\u1ee5 giao ti\u1ebfp. Ch\u00fang gi\u00fap l\u1ea5p \u0111\u1ea7y kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c b\u00ean li\u00ean quan v\u1ec1 kinh doanh v\u00e0 c\u00e1c \u0111\u1ed9i k\u1ef9 thu\u1eadt.<\/p>\n

                                    \n
                                  • Ng\u00f4n ng\u1eef tr\u1ef1c quan:<\/strong>C\u00e1c b\u00ean li\u00ean quan c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c lu\u1ed3ng d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ecdc m\u00e3 ngu\u1ed3n.<\/li>\n
                                  • Hi\u1ec3u bi\u1ebft chung:<\/strong>Gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3 v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n.<\/li>\n
                                  • V\u00f2ng ph\u1ea3n h\u1ed3i:<\/strong> Cho ph\u00e9p c\u00e1c b\u00ean li\u00ean quan x\u00e1c nh\u1eadn m\u00f4 h\u00ecnh tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u vi\u1ebft m\u00e3.<\/li>\n<\/ul>\n

                                    \ud83d\udd2e B\u1ea3o v\u1ec7 s\u01a1 \u0111\u1ed3 kh\u1ecfi t\u01b0\u01a1ng lai<\/h2>\n

                                    C\u00e1c h\u1ec7 th\u1ed1ng c\u0169 th\u01b0\u1eddng \u0111\u01b0\u1ee3c thay th\u1ebf, nh\u01b0ng lu\u1ed3ng d\u1eef li\u1ec7u c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo th\u1eddi gian. Thi\u1ebft k\u1ebf quy tr\u00ecnh DFD \u0111\u1ec3 th\u00edch \u1ee9ng v\u1edbi nh\u1eefng thay \u0111\u1ed5i trong t\u01b0\u01a1ng lai.<\/p>\n

                                      \n
                                    • T\u00ednh \u0111\u1ed9c l\u1eadp:<\/strong>Thi\u1ebft k\u1ebf c\u00e1c quy tr\u00ecnh \u0111\u1ec3 \u0111\u1ed9c l\u1eadp v\u1edbi nhau m\u1ed7i khi c\u00f3 th\u1ec3.<\/li>\n
                                    • Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong>L\u00ean k\u1ebf ho\u1ea1ch cho kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u t\u0103ng l\u00ean trong c\u00e1c lu\u1ed3ng m\u1edbi.<\/li>\n
                                    • T\u00ednh linh ho\u1ea1t:<\/strong>Cho ph\u00e9p th\u00eam c\u00e1c kho d\u1eef li\u1ec7u m\u1edbi ho\u1eb7c c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng m\u00f4 h\u00ecnh.<\/li>\n<\/ul>\n

                                      \ud83d\udcdd Nh\u1eefng suy ngh\u0129 cu\u1ed1i c\u00f9ng v\u1ec1 tri\u1ec3n khai<\/h2>\n

                                      Vi\u1ec7c di d\u1eddi m\u1ed9t h\u1ec7 th\u1ed1ng c\u0169 l\u00e0 m\u1ed9t h\u00e0nh tr\u00ecnh kh\u00e1m ph\u00e1. C\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cung c\u1ea5p b\u1ea3n \u0111\u1ed3 cho h\u00e0nh tr\u00ecnh n\u00e0y. B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng hi\u1ec7n t\u1ea1i m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng, l\u00ean k\u1ebf ho\u1ea1ch cho tr\u1ea1ng th\u00e1i t\u01b0\u01a1ng lai v\u00e0 x\u00e1c nh\u1eadn qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro v\u00e0 t\u1ed1i \u0111a h\u00f3a gi\u00e1 tr\u1ecb.<\/p>\n

                                      H\u00e3y nh\u1edb r\u1eb1ng m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng. N\u00f3 c\u1ea7n thay \u0111\u1ed5i theo s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110\u1ea7u t\u01b0 th\u1eddi gian v\u00e0o vi\u1ec7c ghi ch\u00e9p ch\u00ednh x\u00e1c s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch l\u1edbn trong vi\u1ec7c gi\u1ea3m l\u1ed7i, c\u1ea3i thi\u1ec7n giao ti\u1ebfp r\u00f5 r\u00e0ng v\u00e0 chuy\u1ec3n \u0111\u1ed5i tr\u01a1n tru h\u01a1n. M\u1ee5c ti\u00eau kh\u00f4ng ch\u1ec9 l\u00e0 di chuy\u1ec3n d\u1eef li\u1ec7u, m\u00e0 c\u00f2n l\u00e0 truy\u1ec1n \u0111\u1ea1t s\u1ef1 hi\u1ec3u bi\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                      Chuy\u1ec3n c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh then ch\u1ed1t t\u1eeb c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u0169 sang c\u00e1c n\u1ec1n t\u1ea3ng hi\u1ec7n \u0111\u1ea1i l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn. \u0110\u1ed9 ph\u1ee9c t\u1ea1p th\u01b0\u1eddng kh\u00f4ng…<\/p>\n","protected":false},"author":1,"featured_media":1783,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[96],"tags":[89,95],"class_list":["post-1782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dfd","tag-academic","tag-dfd"],"yoast_head":"\nS\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.\" \/>\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-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca\" \/>\n<meta property=\"og:description\" content=\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"Viz Note Vietnamese - AI Insights & Software Industry Updates\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-30T06:42:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"22 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/d69595112293b803501f7b381be28255\"},\"headline\":\"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169\",\"datePublished\":\"2026-03-30T06:42:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\"},\"wordCount\":4510,\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg\",\"keywords\":[\"academic\",\"dfd\"],\"articleSection\":[\"DFD\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\",\"url\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\",\"name\":\"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg\",\"datePublished\":\"2026-03-30T06:42:38+00:00\",\"description\":\"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage\",\"url\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg\",\"contentUrl\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.viz-note.com\/vi\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#website\",\"url\":\"https:\/\/www.viz-note.com\/vi\/\",\"name\":\"Viz Note Vietnamese - AI Insights & Software Industry Updates\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.viz-note.com\/vi\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#organization\",\"name\":\"Viz Note Vietnamese - AI Insights & Software Industry Updates\",\"url\":\"https:\/\/www.viz-note.com\/vi\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/cropped-viz-note-logo.png\",\"contentUrl\":\"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/cropped-viz-note-logo.png\",\"width\":512,\"height\":512,\"caption\":\"Viz Note Vietnamese - AI Insights & Software Industry Updates\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/vi\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/d69595112293b803501f7b381be28255\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.viz-note.com\"],\"url\":\"https:\/\/www.viz-note.com\/vi\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca","description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/","og_locale":"vi_VN","og_type":"article","og_title":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca","og_description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.","og_url":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/","og_site_name":"Viz Note Vietnamese - AI Insights & Software Industry Updates","article_published_time":"2026-03-30T06:42:38+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"vpadmin","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"22 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#article","isPartOf":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/d69595112293b803501f7b381be28255"},"headline":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169","datePublished":"2026-03-30T06:42:38+00:00","mainEntityOfPage":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/"},"wordCount":4510,"publisher":{"@id":"https:\/\/www.viz-note.com\/vi\/#organization"},"image":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg","keywords":["academic","dfd"],"articleSection":["DFD"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/","url":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/","name":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u cho h\u01b0\u1edbng d\u1eabn di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 \ud83d\udcca","isPartOf":{"@id":"https:\/\/www.viz-note.com\/vi\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage"},"image":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg","datePublished":"2026-03-30T06:42:38+00:00","description":"H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 b\u1ea3n \u0111\u1ed3 h\u00f3a, ph\u00e2n t\u00edch v\u00e0 di d\u1eddi h\u1ec7 th\u1ed1ng c\u0169 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 CNTT.","breadcrumb":{"@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#primaryimage","url":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg","contentUrl":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/dfd-legacy-system-migration-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.viz-note.com\/vi\/data-flow-diagrams-legacy-migration-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.viz-note.com\/vi\/"},{"@type":"ListItem","position":2,"name":"S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i h\u1ec7 th\u1ed1ng c\u0169"}]},{"@type":"WebSite","@id":"https:\/\/www.viz-note.com\/vi\/#website","url":"https:\/\/www.viz-note.com\/vi\/","name":"Viz Note Vietnamese - AI Insights & Software Industry Updates","description":"","publisher":{"@id":"https:\/\/www.viz-note.com\/vi\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.viz-note.com\/vi\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.viz-note.com\/vi\/#organization","name":"Viz Note Vietnamese - AI Insights & Software Industry Updates","url":"https:\/\/www.viz-note.com\/vi\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.viz-note.com\/vi\/#\/schema\/logo\/image\/","url":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/cropped-viz-note-logo.png","contentUrl":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2025\/03\/cropped-viz-note-logo.png","width":512,"height":512,"caption":"Viz Note Vietnamese - AI Insights & Software Industry Updates"},"image":{"@id":"https:\/\/www.viz-note.com\/vi\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/d69595112293b803501f7b381be28255","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.viz-note.com\/vi\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.viz-note.com"],"url":"https:\/\/www.viz-note.com\/vi\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/posts\/1782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/comments?post=1782"}],"version-history":[{"count":0,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/posts\/1782\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/media\/1783"}],"wp:attachment":[{"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/media?parent=1782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/categories?post=1782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.viz-note.com\/vi\/wp-json\/wp\/v2\/tags?post=1782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}