{"id":6375,"date":"2026-02-04T17:26:24","date_gmt":"2026-02-04T09:26:24","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/"},"modified":"2026-02-04T17:26:24","modified_gmt":"2026-02-04T09:26:24","slug":"mastering-data-flow-diagram-balancing-a-comprehensive-guide","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/","title":{"rendered":"N\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u:<\/h4>\n

S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u<\/a> (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua m\u1ed9t h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u00e0nh th\u1ea1o ngh\u1ec7 thu\u1eadt c\u00e2n b\u1eb1ng. C\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 DFD lu\u00f4n nh\u1ea5t qu\u00e1n, ch\u00ednh x\u00e1c v\u00e0 d\u1ec5 hi\u1ec3u \u1edf m\u1ecdi c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. Trong h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y, ch\u00fang t\u00f4i s\u1ebd d\u1eabn d\u1eaft b\u1ea1n qua t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t bi\u1ec3u di\u1ec5n h\u00e0i h\u00f2a v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u.<\/p>\n

S\u1ef1 c\u00e2n b\u1eb1ng trong s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 v\u1ec1 vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 m\u1ea1ch l\u1ea1c \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau. M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u lu\u00f4n ch\u00ednh x\u00e1c, \u0111\u1ea7y \u0111\u1ee7 v\u00e0 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c t\u1ed1t trong to\u00e0n b\u1ed9 bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng.<\/p>\n

Khi b\u1ea1n m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea5p cao th\u00e0nh s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p h\u01a1n, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a qu\u00e1 tr\u00ecnh c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c trong s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i \u0111\u1ea7u v\u00e0o c\u1ee7a qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p cao ph\u1ea3i l\u00e0 \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00f9ng m\u1ed9t qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p th\u1ea5p, v\u00e0 t\u01b0\u01a1ng t\u1ef1 \u0111\u1ed1i v\u1edbi \u0111\u1ea7u ra.<\/p>\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 quan tr\u1ecdng:<\/p>\n

    \n
  1. T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong> N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau l\u00e0 nh\u1ea5t qu\u00e1n. Ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch t\u1eeb c\u1ea5p cao nh\u1ea5t (s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh) xu\u1ed1ng c\u1ea5p th\u1ea5p nh\u1ea5t.<\/li>\n
  2. T\u00ednh \u0111\u1ea7y \u0111\u1ee7:<\/strong> N\u00f3 gi\u00fap duy tr\u00ec t\u00ednh \u0111\u1ea7y \u0111\u1ee7 trong bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u. M\u1ecdi th\u00f4ng tin \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn \u1edf m\u1ed7i c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng.<\/li>\n
  3. T\u00ednh ch\u00ednh x\u00e1c:<\/strong> Vi\u1ec7c c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c trong bi\u1ec3u di\u1ec5n lu\u1ed3ng d\u1eef li\u1ec7u. N\u1ebfu m\u1ed9t \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ho\u1eb7c ph\u00e2n t\u00edch, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c th\u00eam m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 li\u00ean quan \u0111\u1ec3 duy tr\u00ec t\u00ednh ch\u00ednh x\u00e1c.<\/li>\n
  4. T\u00ednh kh\u1ea3 thi theo d\u00f5i:<\/strong> N\u00f3 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng theo d\u00f5i lu\u1ed3ng d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 s\u1ef1 sai l\u1ec7ch hay th\u00e0nh ph\u1ea7n thi\u1ebfu s\u00f3t n\u00e0o.<\/li>\n
  5. \u0110\u1ed9 d\u1ec5 hi\u1ec3u:<\/strong> C\u00e1c s\u01a1 \u0111\u1ed3 c\u00e2n b\u1eb1ng d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 di\u1ec5n gi\u1ea3i h\u01a1n. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 m\u01a1 h\u1ed3 n\u00e0o.<\/li>\n<\/ol>\n

    Vi\u1ec7c c\u00e2n b\u1eb1ng trong DFD l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 t\u00ednh m\u1ea1ch l\u1ea1c c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3, bi\u1ebfn ch\u00fang th\u00e0nh c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t lu\u1ed3ng th\u00f4ng tin b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 cho ph\u00e9p linh ho\u1ea1t trong vi\u1ec7c th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i m\u00e0 v\u1eabn duy tr\u00ec m\u1ed9t bi\u1ec3u di\u1ec5n c\u00f3 c\u1ea5u tr\u00fac v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u.<\/p>\n

    C\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong 10 b\u01b0\u1edbc<\/h2>\n

    B\u01b0\u1edbc 1: Ph\u00e1t tri\u1ec3n s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh<\/h4>\n

    B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan c\u1ea5p cao v\u1ec1 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. X\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh ch\u00ednh v\u00e0 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i tham gia.<\/p>\n

    B\u01b0\u1edbc 2: M\u1edf r\u1ed9ng sang s\u01a1 \u0111\u1ed3 c\u1ea5p 1<\/h4>\n

    V\u1edbi m\u1ed7i qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh, h\u00e3y t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1 t\u01b0\u01a1ng \u1ee9ng. X\u00e1c \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a m\u1ed7i qu\u00e1 tr\u00ecnh, \u0111\u1ea3m b\u1ea3o ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh.<\/p>\n

    B\u01b0\u1edbc 3: Duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u1ea7u v\u00e0o – \u0111\u1ea7u ra<\/h4>\n

    Khi m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh t\u1eeb c\u1ea5p cao sang c\u1ea5p th\u1ea5p, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra \u1edf c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c \u1edf c\u1ea5p th\u1ea5p. Kh\u00f4ng n\u00ean th\u00eam \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra n\u00e0o ngo\u00e0i nh\u1eefng th\u00e0nh ph\u1ea7n thu\u1ed9c v\u1ec1 qu\u00e1 tr\u00ecnh c\u1ea5p th\u1ea5p.<\/p>\n

    B\u01b0\u1edbc 4: Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7<\/h4>\n

    X\u00e1c minh r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u00f3 trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1. M\u1ecdi lu\u1ed3ng d\u1eef li\u1ec7u \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00e1c s\u01a1 \u0111\u1ed3 chi ti\u1ebft.<\/p>\n

    B\u01b0\u1edbc 5: Cho ph\u00e9p c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u1ea7n thi\u1ebft<\/h4>\n

    Nh\u1eadn th\u1ee9c r\u1eb1ng c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. N\u1ebfu ph\u00e1t hi\u1ec7n \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi, h\u00e3y th\u00eam v\u00e0o qu\u00e1 tr\u00ecnh li\u00ean quan \u1edf c\u1ea5p th\u1ea5p. \u0110\u1ea3m b\u1ea3o r\u1eb1ng s\u1ef1 thay \u0111\u1ed5i n\u00e0y \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong t\u1ea5t c\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p cao h\u01a1n.<\/p>\n

    B\u01b0\u1edbc 6: C\u00e2n b\u1eb1ng l\u1eb7p l\u1ea1i<\/h4>\n

    C\u00e2n b\u1eb1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. Khi b\u1ea1n di chuy\u1ec3n \u0111\u1ebfn c\u00e1c m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng th\u1ea5p h\u01a1n, h\u00e3y ki\u1ec3m tra v\u00e0 c\u00e2n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n ch\u00ednh x\u00e1c, v\u00e0 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u ch\u1ec9nh khi c\u1ea7n thi\u1ebft.<\/p>\n

    B\u01b0\u1edbc 7: T\u00e0i li\u1ec7u h\u00f3a c\u00e1c thay \u0111\u1ed5i<\/h4>\n

    H\u00e3y ghi ch\u00e9p r\u00f5 r\u00e0ng m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng. Ghi ch\u00fa l\u00fd do cho c\u00e1c thay \u0111\u1ed5i, d\u00f9 l\u00e0 vi\u1ec7c th\u00eam m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi hay lo\u1ea1i b\u1ecf m\u1ed9t lu\u1ed3ng c\u0169. T\u00e0i li\u1ec7u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng.<\/p>\n

    B\u01b0\u1edbc 8: X\u00e1c minh v\u00e0 xem x\u00e9t<\/h4>\n

    Ki\u1ec3m tra v\u00e0 xem x\u00e9t \u0111\u1ecbnh k\u1ef3 c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng c\u00f9ng c\u00e1c b\u00ean li\u00ean quan v\u00e0 th\u00e0nh vi\u00ean nh\u00f3m. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u c\u00f3 c\u00f9ng m\u1ed9t hi\u1ec3u bi\u1ebft v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c b\u1ea5t nh\u1ea5t ho\u1eb7c hi\u1ec3u l\u1ea7m.<\/p>\n

    B\u01b0\u1edbc 9: \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy xu\u1ea5t<\/h4>\n

    Duy tr\u00ec kh\u1ea3 n\u0103ng truy xu\u1ea5t trong su\u1ed1t c\u00e1c s\u01a1 \u0111\u1ed3. Ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u00f3 th\u1ec3 theo d\u00f5i m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u t\u1eeb s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh xu\u1ed1ng \u0111\u1ebfn m\u1ee9c th\u1ea5p nh\u1ea5t m\u00e0 kh\u00f4ng b\u1ecb nh\u1ea7m l\u1eabn. Kh\u1ea3 n\u0103ng truy xu\u1ea5t n\u00e2ng cao t\u00ednh r\u00f5 r\u00e0ng t\u1ed5ng th\u1ec3 c\u1ee7a bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng.<\/p>\n

    B\u01b0\u1edbc 10: Ho\u00e0n thi\u1ec7n v\u00e0 c\u00f4ng b\u1ed1<\/h4>\n

    Sau khi qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng ho\u00e0n t\u1ea5t, ho\u00e0n thi\u1ec7n c\u00e1c s\u01a1 \u0111\u1ed3 v\u00e0 c\u00f4ng b\u1ed1 ch\u00fang nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a t\u00e0i li\u1ec7u h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 DFD \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 cho ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng, thi\u1ebft k\u1ebf v\u00e0 giao ti\u1ebfp.<\/p>\n

    B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c b\u01b0\u1edbc n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m v\u00e0 chuy\u00ean gia ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng, ch\u00ednh x\u00e1c v\u00e0 cung c\u1ea5p bi\u1ec3u di\u1ec5n to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng.<\/p>\n

    T\u00f3m t\u1eaft<\/h2>\n

    C\u00e2n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng v\u00e0 l\u1eb7p l\u1ea1i, b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c ph\u00e1t tri\u1ec3n s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh v\u00e0 m\u1edf r\u1ed9ng \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1 chi ti\u1ebft. H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc n\u00e0y nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra, ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7 v\u00e0 cho ph\u00e9p c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. B\u1ea3n ch\u1ea5t l\u1eb7p l\u1ea1i c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thay \u0111\u1ed5i \u0111\u01b0\u1ee3c ghi ch\u00e9p, x\u00e1c minh v\u00e0 xem x\u00e9t, d\u1eabn \u0111\u1ebfn m\u1ed9t b\u1ed9 s\u01a1 \u0111\u1ed3 DFD cu\u1ed1i c\u00f9ng mang l\u1ea1i t\u00ednh r\u00f5 r\u00e0ng, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t. D\u00f9 b\u1ea1n l\u00e0 k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m, chuy\u00ean gia ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng hay b\u00ean li\u00ean quan, vi\u1ec7c th\u00e0nh th\u1ea1o vi\u1ec7c c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u s\u1ebd n\u00e2ng cao kh\u1ea3 n\u0103ng hi\u1ec3u, giao ti\u1ebfp v\u00e0 thi\u1ebft k\u1ebf lu\u1ed3ng th\u00f4ng tin hi\u1ec7u qu\u1ea3 trong h\u1ec7 th\u1ed1ng.<\/p>\n

    Tr\u00ecnh ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u d\u1ec5 s\u1eed d\u1ee5ng c\u1ee7a Visual Paradigm<\/h2>\n

    Gi\u1edbi thi\u1ec7u:<\/h4>\n

    Kh\u01a1i d\u1eady s\u1ee9c m\u1ea1nh c\u1ee7a vi\u1ec7c tr\u1ef1c quan h\u00f3a lu\u1ed3ng th\u00f4ng tin trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD).Visual Paradigm<\/a> cung c\u1ea5p m\u1ed9t tr\u00ecnh ch\u1ec9nh s\u1eeda DFD th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea1o, cho ph\u00e9p b\u1ea1n d\u1ec5 d\u00e0ng v\u1ebd ra c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. D\u00f9 b\u1ea1n \u0111ang x\u00e1c \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra, hay x\u00e1c \u0111\u1ecbnh th\u00f4ng tin c\u1ea7n thi\u1ebft cho m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ee5 th\u1ec3, tr\u00ecnh ch\u1ec9nh s\u1eeda c\u1ee7a ch\u00fang t\u00f4i mang \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m li\u1ec1n m\u1ea1ch.<\/p>\n

    \"Easy-to-use<\/p>\n

    T\u00ednh n\u0103ng ch\u00ednh:<\/h4>\n
      \n
    1. T\u1ea1o h\u00ecnh d\u1ea1ng b\u1eb1ng thao t\u00e1c k\u00e9o v\u00e0 th\u1ea3:<\/strong> D\u1ec5 d\u00e0ng x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 DFD c\u1ee7a b\u1ea1n b\u1eb1ng giao di\u1ec7n k\u00e9o v\u00e0 th\u1ea3 tr\u1ef1c quan. Th\u00eam m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng c\u00e1c qu\u00e1 tr\u00ecnh, th\u1ef1c th\u1ec3 v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ea1o ra m\u1ed9t bi\u1ec3u di\u1ec5n to\u00e0n di\u1ec7n v\u1ec1 h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/li>\n
    2. \u0110\u1ecbnh v\u1ecb h\u00ecnh d\u1ea1ng ch\u00ednh x\u00e1c:<\/strong> \u0110\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1eebng pixel nh\u1edd c\u00e1c h\u01b0\u1edbng d\u1eabn c\u0103n ch\u1ec9nh. \u0110\u1eb7t c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c \u1edf v\u1ecb tr\u00ed b\u1ea1n mu\u1ed1n \u0111\u1ec3 c\u00f3 s\u01a1 \u0111\u1ed3 s\u1ea1ch s\u1ebd v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c.<\/li>\n
    3. Kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n:<\/strong> Ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n b\u1eb1ng c\u00e1ch t\u00e1i s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n trong c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n. Bi\u1ec3u di\u1ec5n hi\u1ec7u qu\u1ea3 c\u00e1c qu\u00e1 tr\u00ecnh ho\u1eb7c th\u1ef1c th\u1ec3 l\u1eb7p l\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u1ea7u.<\/li>\n
    4. \u0110\u01a1n gi\u1ea3n h\u00f3a m\u00f4 h\u00ecnh h\u00f3a:<\/strong> Visual Paradigm \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a, gi\u00fap n\u00f3 d\u1ec5 ti\u1ebfp c\u1eadn c\u1ea3 v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u l\u1eabn chuy\u00ean gia c\u00f3 kinh nghi\u1ec7m. T\u1ea1o s\u01a1 \u0111\u1ed3 DFD nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng c\u1ea7n h\u1ecdc qu\u00e1 nhi\u1ec1u.<\/li>\n<\/ol>\n

      T\u1ea1i sao ch\u1ecdn Visual Paradigm?<\/h4>\n

      Tr\u00ecnh ch\u1ec9nh s\u1eeda DFD c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, chuy\u00ean gia ph\u00e2n t\u00edch v\u00e0 c\u00e1c b\u00ean li\u00ean quan. D\u00f9 b\u1ea1n \u0111ang h\u00ecnh th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng m\u1edbi hay tinh ch\u1ec9nh m\u1ed9t h\u1ec7 th\u1ed1ng hi\u1ec7n c\u00f3, tr\u00ecnh ch\u1ec9nh s\u1eeda c\u1ee7a Visual Paradigm trang b\u1ecb cho b\u1ea1n m\u1ed9t b\u1ed9 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 c\u00f3 tr\u1ea3i nghi\u1ec7m m\u00f4 h\u00ecnh h\u00f3a kh\u00f4ng v\u01b0\u1edbng m\u1eafc.<\/p>\n

      Bi\u1ebfn \u00fd t\u01b0\u1edfng c\u1ee7a b\u1ea1n th\u00e0nh c\u00e1c bi\u1ec3u di\u1ec5n tr\u1ef1c quan v\u1edbi tr\u00ecnh ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u d\u1ec5 s\u1eed d\u1ee5ng c\u1ee7a Visual Paradigm \u2013 n\u01a1i s\u1ef1 \u0111\u01a1n gi\u1ea3n h\u00f2a quy\u1ec7n v\u1edbi s\u1ef1 tinh t\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Gi\u1edbi thi\u1ec7u: S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua m\u1ed9t h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u00e0nh th\u1ea1o ngh\u1ec7 thu\u1eadt c\u00e2n b\u1eb1ng. C\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 DFD lu\u00f4n nh\u1ea5t qu\u00e1n, ch\u00ednh x\u00e1c v\u00e0 d\u1ec5 hi\u1ec3u \u1edf m\u1ecdi c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. Trong h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y, ch\u00fang t\u00f4i s\u1ebd d\u1eabn d\u1eaft b\u1ea1n qua t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t bi\u1ec3u di\u1ec5n h\u00e0i h\u00f2a v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. S\u1ef1 c\u00e2n b\u1eb1ng trong s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 v\u1ec1 vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 m\u1ea1ch l\u1ea1c \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau. M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u lu\u00f4n ch\u00ednh x\u00e1c, \u0111\u1ea7y \u0111\u1ee7 v\u00e0 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c t\u1ed1t trong to\u00e0n b\u1ed9 bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. Khi b\u1ea1n m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea5p cao th\u00e0nh s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p h\u01a1n, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a qu\u00e1 tr\u00ecnh c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c trong s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i \u0111\u1ea7u v\u00e0o c\u1ee7a qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p cao ph\u1ea3i l\u00e0 \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00f9ng m\u1ed9t qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p th\u1ea5p, v\u00e0 t\u01b0\u01a1ng t\u1ef1 \u0111\u1ed1i v\u1edbi \u0111\u1ea7u ra. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 quan tr\u1ecdng: T\u00ednh nh\u1ea5t qu\u00e1n: N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau l\u00e0 nh\u1ea5t qu\u00e1n. Ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch t\u1eeb c\u1ea5p cao nh\u1ea5t (s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh) xu\u1ed1ng c\u1ea5p th\u1ea5p nh\u1ea5t. T\u00ednh \u0111\u1ea7y \u0111\u1ee7: N\u00f3 gi\u00fap duy tr\u00ec t\u00ednh \u0111\u1ea7y \u0111\u1ee7 trong bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u. M\u1ecdi th\u00f4ng tin \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn \u1edf m\u1ed7i c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. T\u00ednh ch\u00ednh x\u00e1c: Vi\u1ec7c c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c trong bi\u1ec3u di\u1ec5n lu\u1ed3ng d\u1eef li\u1ec7u. N\u1ebfu m\u1ed9t \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ho\u1eb7c ph\u00e2n t\u00edch, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c th\u00eam m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 li\u00ean quan \u0111\u1ec3 duy tr\u00ec t\u00ednh ch\u00ednh x\u00e1c. T\u00ednh kh\u1ea3 thi theo d\u00f5i: N\u00f3 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng theo d\u00f5i lu\u1ed3ng d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 s\u1ef1 sai l\u1ec7ch hay th\u00e0nh ph\u1ea7n thi\u1ebfu s\u00f3t n\u00e0o. \u0110\u1ed9 d\u1ec5 hi\u1ec3u: C\u00e1c s\u01a1 \u0111\u1ed3 c\u00e2n b\u1eb1ng d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 di\u1ec5n gi\u1ea3i h\u01a1n. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 m\u01a1 h\u1ed3 n\u00e0o. Vi\u1ec7c c\u00e2n b\u1eb1ng trong DFD l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 t\u00ednh m\u1ea1ch l\u1ea1c c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3, bi\u1ebfn ch\u00fang th\u00e0nh c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t lu\u1ed3ng th\u00f4ng tin b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 cho ph\u00e9p linh ho\u1ea1t trong vi\u1ec7c th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i m\u00e0 v\u1eabn duy tr\u00ec m\u1ed9t bi\u1ec3u di\u1ec5n c\u00f3 c\u1ea5u tr\u00fac v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. C\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong 10 b\u01b0\u1edbc B\u01b0\u1edbc 1: Ph\u00e1t tri\u1ec3n s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan c\u1ea5p cao v\u1ec1 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. X\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh ch\u00ednh v\u00e0 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i tham gia. B\u01b0\u1edbc 2: M\u1edf r\u1ed9ng sang s\u01a1 \u0111\u1ed3 c\u1ea5p 1 V\u1edbi m\u1ed7i qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh, h\u00e3y t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1 t\u01b0\u01a1ng \u1ee9ng. X\u00e1c \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a m\u1ed7i qu\u00e1 tr\u00ecnh, \u0111\u1ea3m b\u1ea3o ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh. B\u01b0\u1edbc 3: Duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u1ea7u v\u00e0o – \u0111\u1ea7u ra Khi m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh t\u1eeb c\u1ea5p cao sang c\u1ea5p th\u1ea5p, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra \u1edf c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c \u1edf c\u1ea5p th\u1ea5p. Kh\u00f4ng n\u00ean th\u00eam \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra n\u00e0o ngo\u00e0i nh\u1eefng th\u00e0nh ph\u1ea7n thu\u1ed9c v\u1ec1 qu\u00e1 tr\u00ecnh c\u1ea5p th\u1ea5p. B\u01b0\u1edbc 4: Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7 X\u00e1c minh r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u00f3 trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1. M\u1ecdi lu\u1ed3ng d\u1eef li\u1ec7u \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00e1c s\u01a1 \u0111\u1ed3 chi ti\u1ebft. B\u01b0\u1edbc 5: Cho ph\u00e9p c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u1ea7n thi\u1ebft Nh\u1eadn th\u1ee9c r\u1eb1ng c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. N\u1ebfu ph\u00e1t hi\u1ec7n \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi, h\u00e3y th\u00eam v\u00e0o qu\u00e1 tr\u00ecnh li\u00ean quan \u1edf c\u1ea5p th\u1ea5p. \u0110\u1ea3m b\u1ea3o r\u1eb1ng s\u1ef1 thay \u0111\u1ed5i n\u00e0y \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong t\u1ea5t c\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p cao h\u01a1n. B\u01b0\u1edbc 6: C\u00e2n b\u1eb1ng l\u1eb7p l\u1ea1i C\u00e2n b\u1eb1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. Khi b\u1ea1n di chuy\u1ec3n \u0111\u1ebfn c\u00e1c m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng th\u1ea5p h\u01a1n, h\u00e3y ki\u1ec3m tra v\u00e0 c\u00e2n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n ch\u00ednh x\u00e1c, v\u00e0 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u ch\u1ec9nh khi c\u1ea7n thi\u1ebft. B\u01b0\u1edbc 7: T\u00e0i li\u1ec7u h\u00f3a c\u00e1c thay \u0111\u1ed5i H\u00e3y ghi ch\u00e9p r\u00f5 r\u00e0ng m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng. Ghi ch\u00fa l\u00fd do cho c\u00e1c thay \u0111\u1ed5i, d\u00f9 l\u00e0 vi\u1ec7c th\u00eam m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi hay lo\u1ea1i b\u1ecf m\u1ed9t lu\u1ed3ng c\u0169. T\u00e0i li\u1ec7u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. B\u01b0\u1edbc 8: X\u00e1c minh v\u00e0 xem x\u00e9t Ki\u1ec3m tra v\u00e0 xem x\u00e9t \u0111\u1ecbnh k\u1ef3 c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng c\u00f9ng c\u00e1c b\u00ean li\u00ean quanN\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_eb_attr":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-6375","post","type-post","status-publish","format-standard","hentry","category-dfd"],"yoast_head":"\nN\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n - Visual Paradigm Guides Vietnamese<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"N\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n - Visual Paradigm Guides Vietnamese\" \/>\n<meta property=\"og:description\" content=\"Gi\u1edbi thi\u1ec7u: S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua m\u1ed9t h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u00e0nh th\u1ea1o ngh\u1ec7 thu\u1eadt c\u00e2n b\u1eb1ng. C\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 DFD lu\u00f4n nh\u1ea5t qu\u00e1n, ch\u00ednh x\u00e1c v\u00e0 d\u1ec5 hi\u1ec3u \u1edf m\u1ecdi c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. Trong h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y, ch\u00fang t\u00f4i s\u1ebd d\u1eabn d\u1eaft b\u1ea1n qua t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t bi\u1ec3u di\u1ec5n h\u00e0i h\u00f2a v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. S\u1ef1 c\u00e2n b\u1eb1ng trong s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 v\u1ec1 vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 m\u1ea1ch l\u1ea1c \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau. M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u lu\u00f4n ch\u00ednh x\u00e1c, \u0111\u1ea7y \u0111\u1ee7 v\u00e0 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c t\u1ed1t trong to\u00e0n b\u1ed9 bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. Khi b\u1ea1n m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea5p cao th\u00e0nh s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p h\u01a1n, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a qu\u00e1 tr\u00ecnh c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c trong s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i \u0111\u1ea7u v\u00e0o c\u1ee7a qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p cao ph\u1ea3i l\u00e0 \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00f9ng m\u1ed9t qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p th\u1ea5p, v\u00e0 t\u01b0\u01a1ng t\u1ef1 \u0111\u1ed1i v\u1edbi \u0111\u1ea7u ra. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 quan tr\u1ecdng: T\u00ednh nh\u1ea5t qu\u00e1n: N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau l\u00e0 nh\u1ea5t qu\u00e1n. Ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch t\u1eeb c\u1ea5p cao nh\u1ea5t (s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh) xu\u1ed1ng c\u1ea5p th\u1ea5p nh\u1ea5t. T\u00ednh \u0111\u1ea7y \u0111\u1ee7: N\u00f3 gi\u00fap duy tr\u00ec t\u00ednh \u0111\u1ea7y \u0111\u1ee7 trong bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u. M\u1ecdi th\u00f4ng tin \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn \u1edf m\u1ed7i c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. T\u00ednh ch\u00ednh x\u00e1c: Vi\u1ec7c c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c trong bi\u1ec3u di\u1ec5n lu\u1ed3ng d\u1eef li\u1ec7u. N\u1ebfu m\u1ed9t \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ho\u1eb7c ph\u00e2n t\u00edch, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c th\u00eam m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 li\u00ean quan \u0111\u1ec3 duy tr\u00ec t\u00ednh ch\u00ednh x\u00e1c. T\u00ednh kh\u1ea3 thi theo d\u00f5i: N\u00f3 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng theo d\u00f5i lu\u1ed3ng d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 s\u1ef1 sai l\u1ec7ch hay th\u00e0nh ph\u1ea7n thi\u1ebfu s\u00f3t n\u00e0o. \u0110\u1ed9 d\u1ec5 hi\u1ec3u: C\u00e1c s\u01a1 \u0111\u1ed3 c\u00e2n b\u1eb1ng d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 di\u1ec5n gi\u1ea3i h\u01a1n. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 m\u01a1 h\u1ed3 n\u00e0o. Vi\u1ec7c c\u00e2n b\u1eb1ng trong DFD l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 t\u00ednh m\u1ea1ch l\u1ea1c c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3, bi\u1ebfn ch\u00fang th\u00e0nh c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t lu\u1ed3ng th\u00f4ng tin b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 cho ph\u00e9p linh ho\u1ea1t trong vi\u1ec7c th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i m\u00e0 v\u1eabn duy tr\u00ec m\u1ed9t bi\u1ec3u di\u1ec5n c\u00f3 c\u1ea5u tr\u00fac v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. C\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong 10 b\u01b0\u1edbc B\u01b0\u1edbc 1: Ph\u00e1t tri\u1ec3n s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan c\u1ea5p cao v\u1ec1 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. X\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh ch\u00ednh v\u00e0 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i tham gia. B\u01b0\u1edbc 2: M\u1edf r\u1ed9ng sang s\u01a1 \u0111\u1ed3 c\u1ea5p 1 V\u1edbi m\u1ed7i qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh, h\u00e3y t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1 t\u01b0\u01a1ng \u1ee9ng. X\u00e1c \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a m\u1ed7i qu\u00e1 tr\u00ecnh, \u0111\u1ea3m b\u1ea3o ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh. B\u01b0\u1edbc 3: Duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u1ea7u v\u00e0o – \u0111\u1ea7u ra Khi m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh t\u1eeb c\u1ea5p cao sang c\u1ea5p th\u1ea5p, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra \u1edf c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c \u1edf c\u1ea5p th\u1ea5p. Kh\u00f4ng n\u00ean th\u00eam \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra n\u00e0o ngo\u00e0i nh\u1eefng th\u00e0nh ph\u1ea7n thu\u1ed9c v\u1ec1 qu\u00e1 tr\u00ecnh c\u1ea5p th\u1ea5p. B\u01b0\u1edbc 4: Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7 X\u00e1c minh r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u00f3 trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1. M\u1ecdi lu\u1ed3ng d\u1eef li\u1ec7u \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00e1c s\u01a1 \u0111\u1ed3 chi ti\u1ebft. B\u01b0\u1edbc 5: Cho ph\u00e9p c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u1ea7n thi\u1ebft Nh\u1eadn th\u1ee9c r\u1eb1ng c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. N\u1ebfu ph\u00e1t hi\u1ec7n \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi, h\u00e3y th\u00eam v\u00e0o qu\u00e1 tr\u00ecnh li\u00ean quan \u1edf c\u1ea5p th\u1ea5p. \u0110\u1ea3m b\u1ea3o r\u1eb1ng s\u1ef1 thay \u0111\u1ed5i n\u00e0y \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong t\u1ea5t c\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p cao h\u01a1n. B\u01b0\u1edbc 6: C\u00e2n b\u1eb1ng l\u1eb7p l\u1ea1i C\u00e2n b\u1eb1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. Khi b\u1ea1n di chuy\u1ec3n \u0111\u1ebfn c\u00e1c m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng th\u1ea5p h\u01a1n, h\u00e3y ki\u1ec3m tra v\u00e0 c\u00e2n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n ch\u00ednh x\u00e1c, v\u00e0 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u ch\u1ec9nh khi c\u1ea7n thi\u1ebft. B\u01b0\u1edbc 7: T\u00e0i li\u1ec7u h\u00f3a c\u00e1c thay \u0111\u1ed5i H\u00e3y ghi ch\u00e9p r\u00f5 r\u00e0ng m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng. Ghi ch\u00fa l\u00fd do cho c\u00e1c thay \u0111\u1ed5i, d\u00f9 l\u00e0 vi\u1ec7c th\u00eam m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi hay lo\u1ea1i b\u1ecf m\u1ed9t lu\u1ed3ng c\u0169. T\u00e0i li\u1ec7u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. 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Visual Paradigm Guides Vietnamese","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:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/","og_locale":"vi_VN","og_type":"article","og_title":"N\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n - Visual Paradigm Guides Vietnamese","og_description":"Gi\u1edbi thi\u1ec7u: S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1ch th\u00f4ng tin di chuy\u1ec3n qua m\u1ed9t h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u00e0nh th\u1ea1o ngh\u1ec7 thu\u1eadt c\u00e2n b\u1eb1ng. C\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 DFD lu\u00f4n nh\u1ea5t qu\u00e1n, ch\u00ednh x\u00e1c v\u00e0 d\u1ec5 hi\u1ec3u \u1edf m\u1ecdi c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. Trong h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y, ch\u00fang t\u00f4i s\u1ebd d\u1eabn d\u1eaft b\u1ea1n qua t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t bi\u1ec3u di\u1ec5n h\u00e0i h\u00f2a v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. S\u1ef1 c\u00e2n b\u1eb1ng trong s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 v\u1ec1 vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 m\u1ea1ch l\u1ea1c \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau. M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u lu\u00f4n ch\u00ednh x\u00e1c, \u0111\u1ea7y \u0111\u1ee7 v\u00e0 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c t\u1ed1t trong to\u00e0n b\u1ed9 bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. Khi b\u1ea1n m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea5p cao th\u00e0nh s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p h\u01a1n, b\u1ea1n c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a qu\u00e1 tr\u00ecnh c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c trong s\u01a1 \u0111\u1ed3 c\u1ea5p th\u1ea5p. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed7i \u0111\u1ea7u v\u00e0o c\u1ee7a qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p cao ph\u1ea3i l\u00e0 \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00f9ng m\u1ed9t qu\u00e1 tr\u00ecnh \u1edf c\u1ea5p th\u1ea5p, v\u00e0 t\u01b0\u01a1ng t\u1ef1 \u0111\u1ed1i v\u1edbi \u0111\u1ea7u ra. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c c\u00e2n b\u1eb1ng l\u00e0 quan tr\u1ecdng: T\u00ednh nh\u1ea5t qu\u00e1n: N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00e1c nhau l\u00e0 nh\u1ea5t qu\u00e1n. Ng\u01b0\u1eddi d\u00f9ng n\u00ean c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch t\u1eeb c\u1ea5p cao nh\u1ea5t (s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh) xu\u1ed1ng c\u1ea5p th\u1ea5p nh\u1ea5t. T\u00ednh \u0111\u1ea7y \u0111\u1ee7: N\u00f3 gi\u00fap duy tr\u00ec t\u00ednh \u0111\u1ea7y \u0111\u1ee7 trong bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u. M\u1ecdi th\u00f4ng tin \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn \u1edf m\u1ed7i c\u1ea5p \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. T\u00ednh ch\u00ednh x\u00e1c: Vi\u1ec7c c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c trong bi\u1ec3u di\u1ec5n lu\u1ed3ng d\u1eef li\u1ec7u. N\u1ebfu m\u1ed9t \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ho\u1eb7c ph\u00e2n t\u00edch, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c th\u00eam m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 li\u00ean quan \u0111\u1ec3 duy tr\u00ec t\u00ednh ch\u00ednh x\u00e1c. T\u00ednh kh\u1ea3 thi theo d\u00f5i: N\u00f3 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng theo d\u00f5i lu\u1ed3ng d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 s\u1ef1 sai l\u1ec7ch hay th\u00e0nh ph\u1ea7n thi\u1ebfu s\u00f3t n\u00e0o. \u0110\u1ed9 d\u1ec5 hi\u1ec3u: C\u00e1c s\u01a1 \u0111\u1ed3 c\u00e2n b\u1eb1ng d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 di\u1ec5n gi\u1ea3i h\u01a1n. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 m\u01a1 h\u1ed3 n\u00e0o. Vi\u1ec7c c\u00e2n b\u1eb1ng trong DFD l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 t\u00ednh m\u1ea1ch l\u1ea1c c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3, bi\u1ebfn ch\u00fang th\u00e0nh c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t lu\u1ed3ng th\u00f4ng tin b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 cho ph\u00e9p linh ho\u1ea1t trong vi\u1ec7c th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i m\u00e0 v\u1eabn duy tr\u00ec m\u1ed9t bi\u1ec3u di\u1ec5n c\u00f3 c\u1ea5u tr\u00fac v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1ec1 lu\u1ed3ng d\u1eef li\u1ec7u. C\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u trong 10 b\u01b0\u1edbc B\u01b0\u1edbc 1: Ph\u00e1t tri\u1ec3n s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan c\u1ea5p cao v\u1ec1 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. X\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh ch\u00ednh v\u00e0 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i tham gia. B\u01b0\u1edbc 2: M\u1edf r\u1ed9ng sang s\u01a1 \u0111\u1ed3 c\u1ea5p 1 V\u1edbi m\u1ed7i qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh, h\u00e3y t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1 t\u01b0\u01a1ng \u1ee9ng. X\u00e1c \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a m\u1ed7i qu\u00e1 tr\u00ecnh, \u0111\u1ea3m b\u1ea3o ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh. B\u01b0\u1edbc 3: Duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u1ea7u v\u00e0o – \u0111\u1ea7u ra Khi m\u1edf r\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh t\u1eeb c\u1ea5p cao sang c\u1ea5p th\u1ea5p, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra \u1edf c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c \u1edf c\u1ea5p th\u1ea5p. Kh\u00f4ng n\u00ean th\u00eam \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra n\u00e0o ngo\u00e0i nh\u1eefng th\u00e0nh ph\u1ea7n thu\u1ed9c v\u1ec1 qu\u00e1 tr\u00ecnh c\u1ea5p th\u1ea5p. B\u01b0\u1edbc 4: Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7 X\u00e1c minh r\u1eb1ng t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u00f3 trong s\u01a1 \u0111\u1ed3 ng\u1eef c\u1ea3nh \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p 1. M\u1ecdi lu\u1ed3ng d\u1eef li\u1ec7u \u0111i v\u00e0o ho\u1eb7c \u0111i ra kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00e1c s\u01a1 \u0111\u1ed3 chi ti\u1ebft. B\u01b0\u1edbc 5: Cho ph\u00e9p c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u1ea7n thi\u1ebft Nh\u1eadn th\u1ee9c r\u1eb1ng c\u00e1c \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf. N\u1ebfu ph\u00e1t hi\u1ec7n \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra m\u1edbi, h\u00e3y th\u00eam v\u00e0o qu\u00e1 tr\u00ecnh li\u00ean quan \u1edf c\u1ea5p th\u1ea5p. \u0110\u1ea3m b\u1ea3o r\u1eb1ng s\u1ef1 thay \u0111\u1ed5i n\u00e0y \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong t\u1ea5t c\u1ea3 c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5p cao h\u01a1n. B\u01b0\u1edbc 6: C\u00e2n b\u1eb1ng l\u1eb7p l\u1ea1i C\u00e2n b\u1eb1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. Khi b\u1ea1n di chuy\u1ec3n \u0111\u1ebfn c\u00e1c m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng th\u1ea5p h\u01a1n, h\u00e3y ki\u1ec3m tra v\u00e0 c\u00e2n b\u1eb1ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n ch\u00ednh x\u00e1c, v\u00e0 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u ch\u1ec9nh khi c\u1ea7n thi\u1ebft. B\u01b0\u1edbc 7: T\u00e0i li\u1ec7u h\u00f3a c\u00e1c thay \u0111\u1ed5i H\u00e3y ghi ch\u00e9p r\u00f5 r\u00e0ng m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng. Ghi ch\u00fa l\u00fd do cho c\u00e1c thay \u0111\u1ed5i, d\u00f9 l\u00e0 vi\u1ec7c th\u00eam m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u m\u1edbi hay lo\u1ea1i b\u1ecf m\u1ed9t lu\u1ed3ng c\u0169. T\u00e0i li\u1ec7u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng. B\u01b0\u1edbc 8: X\u00e1c minh v\u00e0 xem x\u00e9t Ki\u1ec3m tra v\u00e0 xem x\u00e9t \u0111\u1ecbnh k\u1ef3 c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng c\u00f9ng c\u00e1c b\u00ean li\u00ean quanN\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n","og_url":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/","og_site_name":"Visual Paradigm Guides Vietnamese","article_published_time":"2026-02-04T09:26:24+00:00","og_image":[{"url":"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/10\/01-data-flow-diagram.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"vpadmin","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"6 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/#article","isPartOf":{"@id":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/"},"headline":"N\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n","datePublished":"2026-02-04T09:26:24+00:00","mainEntityOfPage":{"@id":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/"},"wordCount":2761,"commentCount":0,"image":{"@id":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/10\/01-data-flow-diagram.png","articleSection":["DFD"],"inLanguage":"vi","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/","url":"https:\/\/guides.visual-paradigm.com\/vn\/mastering-data-flow-diagram-balancing-a-comprehensive-guide\/","name":"N\u1eafm v\u1eefng s\u1ef1 c\u00e2n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n - 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