![\"Cartoon](\"https:\/\/www.tech-posts.com\/wp-content\/uploads\/2026\/03\/event-driven-dfd-infographic-cartoon.jpg\"\/)
<\/figure>\n<\/div>\n\ud83d\udd0d Hi\u1ec3u v\u1ec1 S\u01a1 \u0111\u1ed3 Lu\u1ed3ng D\u1eef li\u1ec7u (DFD)<\/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 ‘lu\u1ed3ng’ 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 logic v\u00e0 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n, DFD t\u1eadp trung v\u00e0o chuy\u1ec3n \u0111\u1ed9ng v\u00e0 bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u. Ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u r\u00f5 ph\u1ea1m vi v\u00e0 ranh gi\u1edbi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng.<\/p>\n
C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a DFD<\/h3>\n
\u0110\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t s\u01a1 \u0111\u1ed3 h\u1ee3p l\u1ec7, b\u1ea1n ph\u1ea3i tu\u00e2n theo b\u1ed1n kh\u1ed1i x\u00e2y d\u1ef1ng c\u01a1 b\u1ea3n:<\/p>\n
- \n
- Th\u00e0nh ph\u1ea7n b\u00ean ngo\u00e0i (\ud83d\udc64):<\/strong> M\u1ed9t c\u00e1 nh\u00e2n, t\u1ed5 ch\u1ee9c ho\u1eb7c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. Trong b\u1ed1i c\u1ea3nh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng, m\u1ed9t API b\u00ean th\u1ee9 ba ho\u1eb7c m\u1ed9t thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn.<\/li>\n
- Quy tr\u00ecnh (\u2699\ufe0f):<\/strong> M\u1ed9t qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o th\u00e0nh d\u1eef li\u1ec7u \u0111\u1ea7u ra. Trong EDA, m\u1ed9t quy tr\u00ecnh th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n ho\u1eb7c m\u1ed9t th\u1ef1c th\u1ec3 th\u1ef1c thi quy t\u1eafc kinh doanh.<\/li>\n
- Kho d\u1eef li\u1ec7u (\ud83d\udcc2):<\/strong> M\u1ed9t kho l\u01b0u tr\u1eef n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef \u0111\u1ec3 s\u1eed d\u1ee5ng sau n\u00e0y. Trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, \u0111\u00e2y th\u01b0\u1eddng l\u00e0 nh\u1eadt k\u00fd s\u1ef1 ki\u1ec7n, c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c h\u00e0ng \u0111\u1ee3i tin nh\u1eafn.<\/li>\n
- Lu\u1ed3ng d\u1eef li\u1ec7u (\u27a1\ufe0f):<\/strong> S\u1ef1 di chuy\u1ec3n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n, quy tr\u00ecnh v\u00e0 kho l\u01b0u tr\u1eef. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho d\u1eef li\u1ec7u th\u1ef1c t\u1ebf ho\u1eb7c t\u00edn hi\u1ec7u k\u00edch ho\u1ea1t m\u1ed9t thay \u0111\u1ed5i.<\/li>\n<\/ul>\n
\ud83c\udf10 B\u1ed1i c\u1ea3nh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n<\/h2>\n
C\u00e1c DFD truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng gi\u1ea3 \u0111\u1ecbnh m\u00f4 h\u00ecnh y\u00eau c\u1ea7u – ph\u1ea3n h\u1ed3i \u0111\u1ed3ng b\u1ed9. Tuy nhi\u00ean, c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean t\u1eafc t\u00e1ch bi\u1ec7t. M\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea1o ra m\u1ed9t s\u1ef1 ki\u1ec7n, v\u00e0 m\u1ed9t nh\u00e0 ti\u00eau th\u1ee5 ph\u1ea3n \u1ee9ng l\u1ea1i n\u00f3, th\u01b0\u1eddng kh\u00f4ng c\u1ea7n bi\u1ebft ai l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n
Khi tr\u1ef1c quan h\u00f3a \u0111i\u1ec1u n\u00e0y b\u1eb1ng DFD, b\u1ea1n ph\u1ea3i thay \u0111\u1ed5i g\u00f3c nh\u00ecn. ‘Quy tr\u00ecnh’ kh\u00f4ng c\u00f2n ch\u1ec9 l\u00e0 m\u1ed9t b\u01b0\u1edbc trong chu\u1ed7i n\u1eefa; n\u00f3 l\u00e0 ph\u1ea3n \u1ee9ng tr\u01b0\u1edbc m\u1ed9t t\u00edn hi\u1ec7u d\u1eef li\u1ec7u c\u1ee5 th\u1ec3.<\/p>\n
\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a DFD d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n<\/h3>\n
- \n
- Lu\u1ed3ng b\u1ea5t \u0111\u1ed3ng b\u1ed9:<\/strong> C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i k\u00edch ho\u1ea1t ph\u1ea3n h\u1ed3i ngay l\u1eadp t\u1ee9c. C\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 tr\u1ec5 gi\u1eefa \u0111\u1ea7u v\u00e0o v\u00e0 vi\u1ec7c th\u1ef1c thi quy tr\u00ecnh.<\/li>\n
- Thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i:<\/strong> M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a m\u1ed9t s\u1ef1 ki\u1ec7n th\u01b0\u1eddng l\u00e0 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t kho d\u1eef li\u1ec7u. S\u01a1 \u0111\u1ed3 DFD ph\u1ea3i r\u00f5 r\u00e0ng ch\u1ec9 ra nh\u1eefng kho n\u00e0o \u0111ang \u0111\u01b0\u1ee3c thay \u0111\u1ed5i.<\/li>\n
- C\u01a1 ch\u1ebf k\u00edch ho\u1ea1t:<\/strong> C\u00e1c s\u1ef1 ki\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong h\u00e0ng \u0111\u1ee3i ho\u1eb7c nh\u1eadt k\u00fd tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5. \u0110i\u1ec1u n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 \u0111\u1ec7m v\u00e0 m\u1ed9t kho d\u1eef li\u1ec7u trong s\u01a1 \u0111\u1ed3.<\/li>\n<\/ul>\n
\ud83c\udfd7\ufe0f T\u00edch h\u1ee3p s\u1ef1 ki\u1ec7n v\u00e0o k\u00fd hi\u1ec7u DFD<\/h2>\n
K\u00fd hi\u1ec7u DFD ti\u00eau chu\u1ea9n kh\u00f4ng ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa ‘d\u1eef li\u1ec7u’ v\u00e0 ‘s\u1ef1 ki\u1ec7n’. Tuy nhi\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh k\u00fd hi\u1ec7u \u0111\u1ec3 bi\u1ec3u di\u1ec5n logic d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.<\/p>\n
Bi\u1ec3u di\u1ec5n s\u1ef1 ki\u1ec7n nh\u01b0 c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u<\/h3>\n
M\u1ed9t s\u1ef1 ki\u1ec7n v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t g\u00f3i d\u1eef li\u1ec7u bi\u1ec3u th\u1ecb m\u1ed9t s\u1ef1 thay \u0111\u1ed5i. Trong s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n, h\u00e3y g\u00e1n nh\u00e3n cho c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u b\u1eb1ng t\u00ean s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3 thay v\u00ec c\u00e1c thu\u1eadt ng\u1eef chung nh\u01b0 ‘\u0110\u1ea7u v\u00e0o’ hay ‘\u0110\u1ea7u ra’.<\/p>\n
- \n
- Nh\u00e3n x\u1ea5u:<\/strong>D\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng<\/li>\n
- Nh\u00e3n t\u1ed1t:<\/strong>S\u1ef1 ki\u1ec7n_NewOrderReceived<\/li>\n<\/ul>\n
Bi\u1ec3u di\u1ec5n c\u00e1c kho s\u1ef1 ki\u1ec7n<\/h3>\n
Trong m\u1ed9t h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, ‘Ngu\u1ed3n g\u1ed1c s\u1ef1 th\u1eadt’ th\u01b0\u1eddng l\u00e0 lu\u1ed3ng s\u1ef1 ki\u1ec7n. B\u1ea1n n\u00ean bi\u1ec3u di\u1ec5n lu\u1ed3ng n\u00e0y nh\u01b0 m\u1ed9t Kho d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y l\u00e0m r\u00f5 r\u1eb1ng s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u01b0\u1edbc khi x\u1eed l\u00fd.<\/p>\n
- \n
- Kho l\u01b0u tr\u1eef nh\u1eadt k\u00fd s\u1ef1 ki\u1ec7n:<\/strong>Ch\u1ec9 ra r\u1eb1ng c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c ghi l\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ki\u1ec3m tra v\u00e0 t\u00e1i ph\u00e1t.<\/li>\n
- Kho l\u01b0u tr\u1eef tr\u1ea1ng th\u00e1i:<\/strong>Ch\u1ec9 ra n\u01a1i l\u01b0u tr\u1eef tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng sau khi x\u1eed l\u00fd.<\/li>\n<\/ul>\n
\ud83d\udcc9 C\u00e1c m\u1ee9c \u0111\u1ed9 chi ti\u1ebft<\/h2>\n
C\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3u trong m\u1ed9t c\u00e1i nh\u00ecn duy nh\u1ea5t. C\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) d\u1ef1a v\u00e0o ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n c\u1ea5p \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p. \u0110i\u1ec1u n\u00e0y c\u0169ng \u00e1p d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 cho c\u00e1c ki\u1ebfn tr\u00fac d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n.<\/p>\n
M\u1ee9c 0: S\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh<\/h3>\n
S\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh hi\u1ec3n th\u1ecb h\u1ec7 th\u1ed1ng nh\u01b0 m\u1ed9t qu\u00e1 tr\u00ecnh duy nh\u1ea5t t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i. N\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c ranh gi\u1edbi.<\/p>\n
- \n
- Qu\u00e1 tr\u00ecnh duy nh\u1ea5t:<\/strong>Bi\u1ec3u di\u1ec5n to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng ho\u1eb7c b\u1ed9 ph\u1eadn ph\u1ee5.<\/li>\n
- C\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i:<\/strong>Hi\u1ec3n th\u1ecb t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i g\u1eedi ho\u1eb7c nh\u1eadn d\u1eef li\u1ec7u.<\/li>\n
- C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u ch\u00ednh:<\/strong>Hi\u1ec3n th\u1ecb c\u00e1c s\u1ef1 ki\u1ec7n c\u1ea5p cao \u0111ang v\u00e0o v\u00e0 ra kh\u1ecfi h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n
M\u1ee9c 1: Ph\u00e2n t\u00edch c\u1ea5p cao<\/h3>\n
M\u1ee9c 1 t\u00e1ch qu\u00e1 tr\u00ecnh duy nh\u1ea5t t\u1eeb M\u1ee9c 0 th\u00e0nh c\u00e1c qu\u00e1 tr\u00ecnh con ch\u00ednh ho\u1eb7c c\u00e1c b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n. \u0110\u00e2y l\u00e0 n\u01a1i b\u1ea1n b\u1eaft \u0111\u1ea7u th\u1ea5y logic d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n.<\/p>\n
- \n
- C\u00e1c b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n:<\/strong>M\u1ed7i qu\u00e1 tr\u00ecnh ch\u00ednh n\u00ean t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t lo\u1ea1i x\u1eed l\u00fd s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: \u201cX\u1eed l\u00fd thanh to\u00e1n\u201d, \u201cC\u1eadp nh\u1eadt kho h\u00e0ng\u201d, \u201cG\u1eedi th\u00f4ng b\u00e1o\u201d).<\/li>\n
- C\u00e1c kho n\u1ed9i b\u1ed9:<\/strong>B\u1ea1n s\u1ebd th\u1ea5y n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o v\u00e0 \u0111\u1ecdc t\u1eeb b\u00ean trong h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n
M\u1ee9c 2 v\u00e0 cao h\u01a1n<\/h3>\n
S\u1eed d\u1ee5ng ph\u00e2n r\u00e3 s\u00e2u h\u01a1n cho c\u00e1c qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p. Trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng c\u00f3 ngh\u0129a l\u00e0 chia nh\u1ecf m\u1ed9t b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n th\u00e0nh c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra, chuy\u1ec3n \u0111\u1ed5i v\u00e0 l\u01b0u tr\u1eef.<\/p>\n
- \n
- X\u00e1c th\u1ef1c:<\/strong>Ki\u1ec3m tra xem d\u1eef li\u1ec7u s\u1ef1 ki\u1ec7n c\u00f3 h\u1ee3p l\u1ec7 tr\u01b0\u1edbc khi x\u1eed l\u00fd.<\/li>\n
- Chuy\u1ec3n \u0111\u1ed5i:<\/strong> Chuy\u1ec3n \u0111\u1ed5i s\u1ef1 ki\u1ec7n th\u00f4 th\u00e0nh \u0111\u1ecbnh d\u1ea1ng ph\u00f9 h\u1ee3p v\u1edbi logic kinh doanh.<\/li>\n
- B\u1ec1n v\u1eefng:<\/strong> Ghi k\u1ebft qu\u1ea3 v\u00e0o kho d\u1eef li\u1ec7u ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n
\ud83d\udee0\ufe0f C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho DFD d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n<\/h2>\n
Duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a s\u01a1 \u0111\u1ed3 l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng \u0111\u1ec3 n\u00f3 v\u1eabn h\u1eefu \u00edch. S\u1eed d\u1ee5ng c\u00e1c h\u01b0\u1edbng d\u1eabn sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 r\u00f5 r\u00e0ng.<\/p>\n
1. Quy t\u1eafc \u0111\u1eb7t t\u00ean<\/h3>\n
T\u00ednh nh\u1ea5t qu\u00e1n gi\u00fap gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c. S\u1eed d\u1ee5ng \u0111\u1ecbnh d\u1ea1ng chu\u1ea9n \u0111\u1ec3 \u0111\u1eb7t t\u00ean c\u00e1c th\u00e0nh ph\u1ea7n.<\/p>\n
- \n
- Quy tr\u00ecnh:<\/strong> \u0110\u1ed9ng t\u1eeb + Danh t\u1eeb (v\u00ed d\u1ee5: \u201cT\u00ednh l\u00e3i su\u1ea5t\u201d, \u201cX\u00e1c th\u1ef1c \u0111\u0103ng nh\u1eadp\u201d).<\/li>\n
- D\u00f2ng d\u1eef li\u1ec7u:<\/strong> C\u1ee5m danh t\u1eeb ch\u1ec9 n\u1ed9i dung (v\u00ed d\u1ee5: \u201cT\u1ef7 l\u1ec7L\u00e3iSu\u1ea5t\u201d, \u201cTh\u00f4ng tin\u0110\u0103ngNh\u1eadp\u201d).<\/li>\n
- Kho l\u01b0u tr\u1eef:<\/strong>Danh t\u1eeb s\u1ed1 nhi\u1ec1u (v\u00ed d\u1ee5: \u201cT\u1eadp tin Kh\u00e1ch h\u00e0ng\u201d, \u201cNh\u1eadt k\u00fd Giao d\u1ecbch\u201d).<\/li>\n<\/ul>\n
2. C\u00e2n b\u1eb1ng<\/h3>\n
C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng gi\u1eefa c\u00e1c c\u1ea5p \u0111\u1ed9. N\u1ebfu s\u01a1 \u0111\u1ed3 c\u1ea5p 0 hi\u1ec3n th\u1ecb lu\u1ed3ng \u201c\u0110\u01a1n h\u00e0ng\u201d \u0111i v\u00e0o h\u1ec7 th\u1ed1ng, s\u01a1 \u0111\u1ed3 c\u1ea5p 1 ph\u1ea3i hi\u1ec3n th\u1ecb lu\u1ed3ng \u201c\u0110\u01a1n h\u00e0ng\u201d \u0111\u00f3 \u0111i v\u00e0o quy tr\u00ecnh c\u1ee5 th\u1ec3 x\u1eed l\u00fd n\u00f3. N\u1ebfu m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u xu\u1ea5t hi\u1ec7n \u1edf c\u1ea5p \u0111\u1ed9 th\u1ea5p h\u01a1n nh\u01b0ng kh\u00f4ng xu\u1ea5t hi\u1ec7n \u1edf c\u1ea5p \u0111\u1ed9 cha, th\u00ec \u0111\u00f3 l\u00e0 vi ph\u1ea1m quy t\u1eafc c\u00e2n b\u1eb1ng.<\/p>\n
3. Tr\u00e1nh c\u00e1c lu\u1ed3ng ma<\/h3>\n
M\u1ed9t lu\u1ed3ng ma l\u00e0 d\u1eef li\u1ec7u \u0111i v\u00e0o m\u1ed9t quy tr\u00ecnh nh\u01b0ng kh\u00f4ng \u0111\u00f3ng g\u00f3p v\u00e0o \u0111\u1ea7u ra ho\u1eb7c kh\u00f4ng k\u1ebft n\u1ed1i v\u1edbi kho l\u01b0u tr\u1eef. Trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi m\u1ed9t s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c ghi l\u1ea1i nh\u01b0ng ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c x\u1eed l\u00fd. \u0110\u1ea3m b\u1ea3o m\u1ecdi lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec1u c\u00f3 m\u1ee5c \u0111\u00edch.<\/p>\n
4. X\u1eed l\u00fd c\u00e1c v\u00f2ng ph\u1ea3n h\u1ed3i<\/h3>\n
C\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n th\u01b0\u1eddng c\u00f3 c\u00e1c v\u00f2ng ph\u1ea3n h\u1ed3i. V\u00ed d\u1ee5, m\u1ed9t quy tr\u00ecnh c\u1eadp nh\u1eadt m\u1ed9t kho l\u01b0u tr\u1eef, \u0111i\u1ec1u n\u00e0y k\u00edch ho\u1ea1t m\u1ed9t s\u1ef1 ki\u1ec7n m\u1edbi, s\u1ef1 ki\u1ec7n m\u1edbi n\u00e0y l\u1ea1i k\u00edch ho\u1ea1t m\u1ed9t quy tr\u00ecnh kh\u00e1c. C\u00e1c DFD bi\u1ec3u di\u1ec5n \u0111i\u1ec1u n\u00e0y nh\u01b0 m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u t\u1eeb kho l\u01b0u tr\u1eef quay tr\u1edf l\u1ea1i quy tr\u00ecnh. \u0110\u1ea3m b\u1ea3o c\u00e1c v\u00f2ng n\u00e0y r\u00f5 r\u00e0ng v\u00e0 kh\u00f4ng t\u1ea1o ra c\u00e1c chu tr\u00ecnh v\u00f4 h\u1ea1n m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac.<\/p>\n
\ud83c\udd9a So s\u00e1nh: DFD so v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c<\/h2>\n
Vi\u1ec7c ch\u1ecdn c\u00f4ng c\u1ee5 tr\u1ef1c quan h\u00f3a ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e2u h\u1ecfi b\u1ea1n \u0111ang c\u1ed1 g\u1eafng tr\u1ea3 l\u1eddi. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y so s\u00e1nh DFD v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 ph\u1ed5 bi\u1ebfn kh\u00e1c.<\/p>\n
\n\n
\n \nLo\u1ea1i s\u01a1 \u0111\u1ed3<\/th>\n Tr\u1ecdng t\u00e2m<\/th>\n D\u00f9ng t\u1ed1t nh\u1ea5t \u0111\u1ec3<\/th>\n H\u1ea1n ch\u1ebf<\/th>\n<\/tr>\n<\/thead>\n \n S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD)<\/strong><\/td>\n Chuy\u1ec3n \u0111\u1ed9ng v\u00e0 bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u<\/td>\n Ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng, ki\u1ebfn tr\u00fac d\u1eef li\u1ec7u<\/td>\n Kh\u00f4ng hi\u1ec3n th\u1ecb lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c th\u1eddi gian<\/td>\n<\/tr>\n \n S\u01a1 \u0111\u1ed3 lu\u1ed3ng<\/strong><\/td>\n L\u00f4gic v\u00e0 c\u00e1c \u0111\u01b0\u1eddng \u0111i ra quy\u1ebft \u0111\u1ecbnh<\/td>\n Thi\u1ebft k\u1ebf thu\u1eadt to\u00e1n, l\u00f4gic chi ti\u1ebft<\/td>\n C\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed9n x\u1ed9n trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n \n S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/strong><\/td>\n T\u01b0\u01a1ng t\u00e1c theo th\u1ee9 t\u1ef1 th\u1eddi gian<\/td>\n T\u01b0\u01a1ng t\u00e1c API, l\u1eddi g\u1ecdi \u0111\u1ed3ng b\u1ed9<\/td>\n \u00cdt hi\u1ec7u qu\u1ea3 h\u01a1n v\u1edbi c\u00e1c s\u1ef1 ki\u1ec7n b\u1ea5t \u0111\u1ed3ng b\u1ed9<\/td>\n<\/tr>\n \n S\u01a1 \u0111\u1ed3 th\u00e0nh ph\u1ea7n UML<\/strong><\/td>\n C\u1ea5u tr\u00fac v\u1eadt l\u00fd ho\u1eb7c logic<\/td>\n Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, tri\u1ec3n khai<\/td>\n Th\u01b0\u1eddng qu\u00e1 k\u1ef9 thu\u1eadt \u0111\u1ed1i v\u1edbi c\u00e1c b\u00ean li\u00ean quan kinh doanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u0110\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n trong vi\u1ec7c th\u1ec3 hi\u1ec7n d\u1eef li\u1ec7u \u0111\u1ebfn t\u1eeb \u0111\u00e2u v\u00e0 \u0111i \u0111\u1ebfn \u0111\u00e2u, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 c\u00e1c b\u1ea3n ghi ki\u1ec3m to\u00e1n.<\/p>\n
\u26a0\ufe0f Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 sai l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h2>\n
Vi\u1ec7c t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n, nh\u01b0ng l\u00e0m \u0111\u00fang \u0111\u00f2i h\u1ecfi s\u1ef1 k\u1ef7 lu\u1eadt. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh.<\/p>\n
- \n
- L\u00e0m qu\u00e1 ph\u1ee9c t\u1ea1p s\u01a1 \u0111\u1ed3 b\u1ed1i c\u1ea3nh:<\/strong>Kh\u00f4ng n\u00ean \u0111\u01b0a qu\u00e1 nhi\u1ec1u th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i. H\u00e3y t\u1eadp trung v\u00e0o c\u00e1c ngu\u1ed3n v\u00e0 \u0111i\u1ec3m \u0111\u1ebfn ch\u00ednh c\u1ee7a d\u1eef li\u1ec7u.<\/li>\n
- Nh\u1ea7m l\u1eabn \u0111i\u1ec1u khi\u1ec3n v\u1edbi d\u1eef li\u1ec7u:<\/strong>M\u1ed9t t\u00edn hi\u1ec7u cho bi\u1ebft m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea7n ch\u1ea1y kh\u00f4ng ph\u1ea3i l\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u. Lu\u1ed3ng d\u1eef li\u1ec7u mang th\u00f4ng tin. N\u1ebfu m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi b\u1ed9 \u0111\u1ebfm th\u1eddi gian, b\u1ed9 \u0111\u1ebfm th\u1eddi gian l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i, nh\u01b0ng lu\u1ed3ng d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00e0 t\u00edn hi\u1ec7u \u201cTimeTick\u201d ch\u1ee9a d\u1eef li\u1ec7u th\u1eddi gian \u0111\u00e1nh d\u1ea5u.<\/li>\n
- B\u1ecf qua c\u00e1c kho d\u1eef li\u1ec7u:<\/strong>Trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, l\u1edbp l\u01b0u tr\u1eef b\u1ec1n v\u1eefng l\u00e0 r\u1ea5t quan tr\u1ecdng. N\u1ebfu b\u1ea1n b\u1ecf qua c\u00e1c kho d\u1eef li\u1ec7u, b\u1ea1n s\u1ebd m\u1ea5t kh\u1ea3 n\u0103ng theo d\u00f5i c\u00e1c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i.<\/li>\n
- B\u1ecf qua c\u00e1c h\u00e0ng \u0111\u1ee3i b\u1ea5t \u0111\u1ed3ng b\u1ed9:<\/strong> N\u1ebfu c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c x\u1ebfp h\u00e0ng, h\u00e3y bi\u1ec3u di\u1ec5n h\u00e0ng \u0111\u1ee3i nh\u01b0 m\u1ed9t kho d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y l\u00e0m n\u1ed5i b\u1eadt kh\u1ea3 n\u0103ng \u0111\u1ec7m v\u00e0 ti\u1ec1m n\u0103ng g\u00e2y ch\u1eadm tr\u1ec5.<\/li>\n<\/ul>\n
\ud83d\ude80 Quy tr\u00ecnh tri\u1ec3n khai<\/h2>\n
Th\u1ef1c hi\u1ec7n theo c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac n\u00e0y \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n cho m\u1ed9t h\u1ec7 th\u1ed1ng m\u1edbi.<\/p>\n
B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i<\/h3>\n
Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c ngu\u1ed3n s\u1ef1 ki\u1ec7n. Bao g\u1ed3m ng\u01b0\u1eddi d\u00f9ng con ng\u01b0\u1eddi, c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c, c\u1ea3m bi\u1ebfn v\u00e0 b\u1ed9 l\u1eadp l\u1ecbch t\u1ef1 \u0111\u1ed9ng.<\/p>\n
B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi h\u1ec7 th\u1ed1ng<\/h3>\n
V\u1ebd m\u1ed9t h\u00ecnh tr\u00f2n ho\u1eb7c h\u00ecnh ch\u1eef nh\u1eadt \u0111\u1ea1i di\u1ec7n cho h\u1ec7 th\u1ed1ng. \u0110\u1eb7t t\u1ea5t c\u1ea3 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i ranh gi\u1edbi n\u00e0y.<\/p>\n
B\u01b0\u1edbc 3: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u c\u1ea5p cao<\/h3>\n
V\u1ebd c\u00e1c m\u0169i t\u00ean gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 v\u00e0 ranh gi\u1edbi h\u1ec7 th\u1ed1ng. \u0110\u1eb7t nh\u00e3n cho c\u00e1c m\u0169i t\u00ean n\u00e0y b\u1eb1ng t\u00ean s\u1ef1 ki\u1ec7n ho\u1eb7c g\u00f3i d\u1eef li\u1ec7u \u0111ang \u0111\u01b0\u1ee3c trao \u0111\u1ed5i.<\/p>\n
B\u01b0\u1edbc 4: Ph\u00e2n t\u00edch th\u00e0nh c\u00e1c qu\u00e1 tr\u00ecnh<\/h3>\n
Chia v\u00f2ng tr\u00f2n h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c qu\u00e1 tr\u00ecnh ch\u00ednh. \u0110\u1ea3m b\u1ea3o m\u1ed7i qu\u00e1 tr\u00ecnh x\u1eed l\u00fd m\u1ed9t lo\u1ea1i s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n
B\u01b0\u1edbc 5: X\u00e1c \u0111\u1ecbnh c\u00e1c kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u<\/h3>\n
X\u00e1c \u0111\u1ecbnh n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef. Trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng l\u00e0 Nh\u1eadt k\u00fd S\u1ef1 ki\u1ec7n ho\u1eb7c C\u01a1 s\u1edf d\u1eef li\u1ec7u Tr\u1ea1ng th\u00e1i. V\u1ebd ch\u00fang b\u00ean trong ranh gi\u1edbi h\u1ec7 th\u1ed1ng.<\/p>\n
B\u01b0\u1edbc 6: X\u00e1c minh v\u00e0 c\u00e2n b\u1eb1ng<\/h3>\n
Xem x\u00e9t s\u01a1 \u0111\u1ed3. Ki\u1ec3m tra xem m\u1ed7i \u0111\u1ea7u v\u00e0o \u0111\u1ec1u c\u00f3 \u0111\u1ea7u ra. Ki\u1ec3m tra xem t\u1ea5t c\u1ea3 c\u00e1c kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. \u0110\u1ea3m b\u1ea3o lu\u1ed3ng d\u1eef li\u1ec7u ph\u00f9 h\u1ee3p gi\u1eefa M\u1ee9c 0 v\u00e0 M\u1ee9c 1.<\/p>\n
\ud83d\udcc8 L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c tr\u1ef1c quan h\u00f3a logic d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n<\/h2>\n
T\u1ea1i sao l\u1ea1i \u0111\u1ea7u t\u01b0 th\u1eddi gian \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y? L\u1ee3i \u00edch c\u1ee7a ch\u00fang v\u01b0\u1ee3t xa vi\u1ec7c t\u00e0i li\u1ec7u h\u00f3a.<\/p>\n
- \n
- Giao ti\u1ebfp:<\/strong> Cung c\u1ea5p m\u1ed9t ng\u00f4n ng\u1eef chung cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, nh\u00e0 ph\u00e2n t\u00edch v\u00e0 ch\u1ee7 doanh nghi\u1ec7p.<\/li>\n
- Ph\u00e2n t\u00edch kho\u1ea3ng tr\u1ed1ng:<\/strong> Nh\u1ea5n m\u1ea1nh c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u b\u1ecb thi\u1ebfu ho\u1eb7c c\u00e1c qu\u00e1 tr\u00ecnh b\u1ecb t\u00e1ch r\u1eddi, c\u00f3 th\u1ec3 ch\u1ec9 ra l\u1ed7i.<\/li>\n
- L\u1eadp k\u1ebf ho\u1ea1ch m\u1edf r\u1ed9ng:<\/strong> Gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m ngh\u1ebdn n\u01a1i kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u b\u1ecb qu\u00e1 t\u1ea3i ho\u1eb7c c\u00e1c qu\u00e1 tr\u00ecnh qu\u00e1 tu\u1ea7n t\u1ef1.<\/li>\n
- Ki\u1ec3m to\u00e1n b\u1ea3o m\u1eadt:<\/strong> Hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng n\u01a1i d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m \u0111i v\u00e0o v\u00e0 r\u1eddi kh\u1ecfi h\u1ec7 th\u1ed1ng, h\u1ed7 tr\u1ee3 tu\u00e2n th\u1ee7 b\u1ea3o m\u1eadt.<\/li>\n<\/ul>\n
\ud83d\udd12 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 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u sau c\u00f9ng. Khi v\u1ebd s\u01a1 \u0111\u1ed3 DFD c\u1ee7a b\u1ea1n, h\u00e3y c\u00e2n nh\u1eafc \u0111\u1ebfn t\u00e1c \u0111\u1ed9ng b\u1ea3o m\u1eadt c\u1ee7a t\u1eebng lu\u1ed3ng.<\/p>\n
- \n
- M\u00e3 h\u00f3a:<\/strong> Nh\u00e3n c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u ch\u1ee9a th\u00f4ng tin nh\u1ea1y c\u1ea3m (v\u00ed d\u1ee5: m\u1eadt kh\u1ea9u, th\u1ebb t\u00edn d\u1ee5ng) l\u00e0 \u0111\u00e3 m\u00e3 h\u00f3a.<\/li>\n
- X\u00e1c th\u1ef1c:<\/strong> Ch\u1ec9 ra c\u00e1c th\u1ef1c th\u1ec3 n\u00e0o c\u1ea7n x\u00e1c th\u1ef1c tr\u01b0\u1edbc khi g\u1eedi lu\u1ed3ng d\u1eef li\u1ec7u.<\/li>\n
- Ki\u1ec3m so\u00e1t truy c\u1eadp:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u n\u00e0o b\u1ecb gi\u1edbi h\u1ea1n cho c\u00e1c qu\u00e1 tr\u00ecnh ho\u1eb7c th\u1ef1c th\u1ec3 c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n
V\u00ed d\u1ee5, m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n l\u00e0 \u201cAuthCredentials\u201d kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c ch\u1ec9 tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1ed9t th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i c\u00f4ng khai m\u00e0 kh\u00f4ng c\u00f3 m\u1ed9t qu\u00e1 tr\u00ecnh x\u1eed l\u00fd x\u00e1c minh tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n
\ud83d\udd04 B\u1ea3o tr\u00ec v\u00e0 qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n<\/h2>\n
C\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng. S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) kh\u00f4ng ph\u1ea3i l\u00e0 t\u00e0i li\u1ec7u t\u0129nh; n\u00f3 l\u00e0 m\u1ed9t t\u00e1c ph\u1ea9m s\u1ed1ng \u0111\u1ed9ng.<\/p>\n
- \n
- Qu\u1ea3n l\u00fd thay \u0111\u1ed5i:<\/strong>Khi th\u00eam m\u1ed9t lo\u1ea1i s\u1ef1 ki\u1ec7n m\u1edbi, h\u00e3y c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 ngay l\u1eadp t\u1ee9c.<\/li>\n
- Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong> Gi\u1eef l\u1ea1i c\u00e1c phi\u00ean b\u1ea3n tr\u01b0\u1edbc c\u1ee7a s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD). \u0110i\u1ec1u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng.<\/li>\n
- V\u00f2ng ki\u1ec3m tra:<\/strong>L\u00ean l\u1ecbch ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u c\u00f9ng v\u1edbi \u0111\u1ed9i ph\u00e1t tri\u1ec3n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u00e3 th\u1ef1c t\u1ebf.<\/li>\n<\/ul>\n
\ud83d\udcdd T\u00f3m t\u1eaft nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n
S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1c quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n cung c\u1ea5p b\u1ea3n \u0111\u1ed3 r\u00f5 r\u00e0ng v\u1ec1 s\u1ef1 di chuy\u1ec3n th\u00f4ng tin. B\u1eb1ng c\u00e1ch coi s\u1ef1 ki\u1ec7n nh\u01b0 lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 kho l\u01b0u tr\u1eef s\u1ef1 ki\u1ec7n nh\u01b0 kho d\u1eef li\u1ec7u, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t m\u00f4 h\u00ecnh v\u1eefng ch\u1eafc cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n
Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb bao g\u1ed3m:<\/p>\n
- \n
- T\u1eadp trung v\u00e0o s\u1ef1 di chuy\u1ec3n d\u1eef li\u1ec7u, ch\u1ee9 kh\u00f4ng ph\u1ea3i logic \u0111i\u1ec1u khi\u1ec3n.<\/li>\n
- \u0110\u00e1nh nh\u00e3n c\u00e1c lu\u1ed3ng b\u1eb1ng t\u00ean s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3.<\/li>\n
- S\u1eed d\u1ee5ng c\u00e1c c\u1ea5p \u0111\u1ed9 ph\u00e2n c\u1ea5p \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/li>\n
- \u0110\u1ea3m b\u1ea3o s\u1ef1 c\u00e2n b\u1eb1ng nghi\u00eam ng\u1eb7t gi\u1eefa c\u00e1c c\u1ea5p \u0111\u1ed9 s\u01a1 \u0111\u1ed3.<\/li>\n
- Bi\u1ec3u di\u1ec5n h\u00e0ng \u0111\u1ee3i v\u00e0 nh\u1eadt k\u00fd nh\u01b0 c\u00e1c kho d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n
\u00c1p d\u1ee5ng c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 k\u1ef7 lu\u1eadt n\u00e0y \u0111\u1ea3m b\u1ea3o ki\u1ebfn tr\u00fac c\u1ee7a b\u1ea1n v\u1eabn d\u1ec5 hi\u1ec3u, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u kinh doanh. S\u01a1 \u0111\u1ed3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf h\u01b0\u1edbng d\u1eabn qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi ch\u00fang \u0111\u1ebfn s\u1ea3n xu\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"
Trong ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m hi\u1ec7n \u0111\u1ea1i, c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ebfm khi ho\u1ea1t \u0111\u1ed9ng theo tr\u00ecnh t\u1ef1 tuy\u1ebfn t\u00ednh. Thay v\u00e0o \u0111\u00f3, ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c k\u00edch th\u00edch, thay…<\/p>\n","protected":false},"author":1,"featured_media":1951,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Tr\u1ef1c quan h\u00f3a quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u. M\u1ed9t h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 c\u00e1c c\u1ea5p \u0111\u1ed9 DFD, k\u00fd hi\u1ec7u v\u00e0 tr\u1ef1c quan h\u00f3a ki\u1ebfn tr\u00fac.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[90],"tags":[87,89],"class_list":["post-1950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dfd","tag-academic","tag-dfd"],"yoast_head":"\n
Tr\u1ef1c quan h\u00f3a quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u. 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M\u1ed9t h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 c\u00e1c c\u1ea5p \u0111\u1ed9 DFD, k\u00fd hi\u1ec7u v\u00e0 tr\u1ef1c quan h\u00f3a ki\u1ebfn tr\u00fac.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/\" \/>\n<meta property=\"og:site_name\" content=\"Tech Posts Vietnamese - Latest Trends in AI, Software, and Digital Innovation\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-21T18:16:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tech-posts.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/event-driven-dfd-infographic-cartoon.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.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.tech-posts.com\/vi\/#\/schema\/person\/476bc4d637daf851268987c1f86e31bd\"},\"headline\":\"H\u01b0\u1edbng d\u1eabn DFD: Tr\u1ef1c quan h\u00f3a quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u\",\"datePublished\":\"2026-03-21T18:16:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/\"},\"wordCount\":4418,\"publisher\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tech-posts.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/event-driven-dfd-infographic-cartoon.jpg\",\"keywords\":[\"academic\",\"dfd\"],\"articleSection\":[\"DFD\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/\",\"url\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/\",\"name\":\"Tr\u1ef1c quan h\u00f3a quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u\",\"isPartOf\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tech-posts.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/03\/event-driven-dfd-infographic-cartoon.jpg\",\"datePublished\":\"2026-03-21T18:16:11+00:00\",\"description\":\"H\u1ecdc c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u. 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M\u1ed9t h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 c\u00e1c c\u1ea5p \u0111\u1ed9 DFD, k\u00fd hi\u1ec7u v\u00e0 tr\u1ef1c quan h\u00f3a ki\u1ebfn tr\u00fac.","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.tech-posts.com\/vi\/event-driven-process-visualization-data-flow-diagrams\/","og_locale":"vi_VN","og_type":"article","og_title":"Tr\u1ef1c quan h\u00f3a quy tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u","og_description":"H\u1ecdc c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n b\u1eb1ng s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u. 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- Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong> Gi\u1eef l\u1ea1i c\u00e1c phi\u00ean b\u1ea3n tr\u01b0\u1edbc c\u1ee7a s\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD). \u0110i\u1ec1u n\u00e0y gi\u00fap hi\u1ec3u r\u00f5 qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng.<\/li>\n
- X\u00e1c th\u1ef1c:<\/strong> Ch\u1ec9 ra c\u00e1c th\u1ef1c th\u1ec3 n\u00e0o c\u1ea7n x\u00e1c th\u1ef1c tr\u01b0\u1edbc khi g\u1eedi lu\u1ed3ng d\u1eef li\u1ec7u.<\/li>\n
- Ph\u00e2n t\u00edch kho\u1ea3ng tr\u1ed1ng:<\/strong> Nh\u1ea5n m\u1ea1nh c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u b\u1ecb thi\u1ebfu ho\u1eb7c c\u00e1c qu\u00e1 tr\u00ecnh b\u1ecb t\u00e1ch r\u1eddi, c\u00f3 th\u1ec3 ch\u1ec9 ra l\u1ed7i.<\/li>\n
- Nh\u1ea7m l\u1eabn \u0111i\u1ec1u khi\u1ec3n v\u1edbi d\u1eef li\u1ec7u:<\/strong>M\u1ed9t t\u00edn hi\u1ec7u cho bi\u1ebft m\u1ed9t qu\u00e1 tr\u00ecnh c\u1ea7n ch\u1ea1y kh\u00f4ng ph\u1ea3i l\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u. Lu\u1ed3ng d\u1eef li\u1ec7u mang th\u00f4ng tin. N\u1ebfu m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi b\u1ed9 \u0111\u1ebfm th\u1eddi gian, b\u1ed9 \u0111\u1ebfm th\u1eddi gian l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i, nh\u01b0ng lu\u1ed3ng d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00e0 t\u00edn hi\u1ec7u \u201cTimeTick\u201d ch\u1ee9a d\u1eef li\u1ec7u th\u1eddi gian \u0111\u00e1nh d\u1ea5u.<\/li>\n
- D\u00f2ng d\u1eef li\u1ec7u:<\/strong> C\u1ee5m danh t\u1eeb ch\u1ec9 n\u1ed9i dung (v\u00ed d\u1ee5: \u201cT\u1ef7 l\u1ec7L\u00e3iSu\u1ea5t\u201d, \u201cTh\u00f4ng tin\u0110\u0103ngNh\u1eadp\u201d).<\/li>\n
- Chuy\u1ec3n \u0111\u1ed5i:<\/strong> Chuy\u1ec3n \u0111\u1ed5i s\u1ef1 ki\u1ec7n th\u00f4 th\u00e0nh \u0111\u1ecbnh d\u1ea1ng ph\u00f9 h\u1ee3p v\u1edbi logic kinh doanh.<\/li>\n
- C\u00e1c kho n\u1ed9i b\u1ed9:<\/strong>B\u1ea1n s\u1ebd th\u1ea5y n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o v\u00e0 \u0111\u1ecdc t\u1eeb b\u00ean trong h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n
- C\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i:<\/strong>Hi\u1ec3n th\u1ecb t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i g\u1eedi ho\u1eb7c nh\u1eadn d\u1eef li\u1ec7u.<\/li>\n
- Kho l\u01b0u tr\u1eef tr\u1ea1ng th\u00e1i:<\/strong>Ch\u1ec9 ra n\u01a1i l\u01b0u tr\u1eef tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng sau khi x\u1eed l\u00fd.<\/li>\n<\/ul>\n
- Nh\u00e3n t\u1ed1t:<\/strong>S\u1ef1 ki\u1ec7n_NewOrderReceived<\/li>\n<\/ul>\n
- Thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i:<\/strong> M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a m\u1ed9t s\u1ef1 ki\u1ec7n th\u01b0\u1eddng l\u00e0 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t kho d\u1eef li\u1ec7u. S\u01a1 \u0111\u1ed3 DFD ph\u1ea3i r\u00f5 r\u00e0ng ch\u1ec9 ra nh\u1eefng kho n\u00e0o \u0111ang \u0111\u01b0\u1ee3c thay \u0111\u1ed5i.<\/li>\n
- Quy tr\u00ecnh (\u2699\ufe0f):<\/strong> M\u1ed9t qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o th\u00e0nh d\u1eef li\u1ec7u \u0111\u1ea7u ra. Trong EDA, m\u1ed9t quy tr\u00ecnh th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n ho\u1eb7c m\u1ed9t th\u1ef1c th\u1ec3 th\u1ef1c thi quy t\u1eafc kinh doanh.<\/li>\n