{"id":11104,"date":"2026-01-10T07:26:19","date_gmt":"2026-01-09T23:26:19","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/beginners-guide-to-yourdon-demarco-dfd-diagrams\/"},"modified":"2026-01-10T07:26:19","modified_gmt":"2026-01-09T23:26:19","slug":"beginners-guide-to-yourdon-demarco-dfd-diagrams","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/beginners-guide-to-yourdon-demarco-dfd-diagrams\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 ghi ch\u00e9p lu\u1ed3ng d\u1eef li\u1ec7u b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco, mang t\u00ean theo c\u00e1c nh\u00e0 s\u00e1ng t\u1ea1o l\u00e0 Edward Yourdon v\u00e0 Tom DeMarco, cung c\u1ea5p m\u1ed9t c\u00e1ch c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n qua h\u1ec7 th\u1ed1ng. Trong h\u01b0\u1edbng d\u1eabn d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u \u0111\u1ebfn b\u1ea1n c\u00e1c s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco v\u00e0 ch\u1ec9 cho b\u1ea1n c\u00e1ch t\u1ea1o ch\u00fang b\u1eb1ng Visual Paradigm Online, t\u1eadn d\u1ee5ng b\u1ed9 s\u01b0u t\u1eadp m\u1eabu phong ph\u00fa c\u1ee7a n\u00f3.<\/p>\n<h2>S\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco l\u00e0 g\u00ec?<\/h2>\n<p>S\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 chuy\u1ec3n giao trong m\u1ed9t h\u1ec7 th\u1ed1ng. N\u00f3 gi\u00fap c\u00e1c nh\u00e0 ph\u00e2n t\u00edch, nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u r\u00f5 c\u00e1c kh\u00eda c\u1ea1nh ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng, l\u00e0m n\u1ed5i b\u1eadt ngu\u1ed3n d\u1eef li\u1ec7u, c\u00e1c qu\u00e1 tr\u00ecnh, kho l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u0111i\u1ec3m \u0111\u1ebfn d\u1eef li\u1ec7u. C\u00e1c s\u01a1 \u0111\u1ed3 DFD th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng \u0111\u1ec3 ghi l\u1ea1i v\u00e0 truy\u1ec1n \u0111\u1ea1t lu\u1ed3ng d\u1eef li\u1ec7u c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p><img alt=\"Yourdon DeMarco DFD Software\" decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/yourdon-demarco-dfd-software.png\"\/><\/p>\n<h2>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco:<\/h2>\n<ol>\n<li><strong>C\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i:<\/strong> \u0110\u00e2y l\u00e0 c\u00e1c th\u1ef1c th\u1ec3 n\u1eb1m ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng, t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. Ch\u00fang c\u00f3 th\u1ec3 l\u00e0 ng\u01b0\u1eddi d\u00f9ng, c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c ho\u1eb7c ngu\u1ed3n d\u1eef li\u1ec7u.<\/li>\n<li><strong>C\u00e1c qu\u00e1 tr\u00ecnh:<\/strong> C\u00e1c qu\u00e1 tr\u00ecnh bi\u1ec3u di\u1ec5n c\u00e1c ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c bi\u1ebfn \u0111\u1ed5i x\u1ea3y ra trong h\u1ec7 th\u1ed1ng. M\u1ed7i qu\u00e1 tr\u00ecnh nh\u1eadn d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o, th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 thao t\u00e1c v\u00e0 t\u1ea1o ra d\u1eef li\u1ec7u \u0111\u1ea7u ra.<\/li>\n<li><strong>C\u00e1c kho d\u1eef li\u1ec7u:<\/strong> C\u00e1c kho d\u1eef li\u1ec7u bi\u1ec3u di\u1ec5n c\u00e1c kho l\u01b0u tr\u1eef n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u00ean trong h\u1ec7 th\u1ed1ng. Ch\u00fang c\u00f3 th\u1ec3 l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u, t\u1ec7p tin ho\u1eb7c b\u1ea5t k\u1ef3 h\u00ecnh th\u1ee9c l\u01b0u tr\u1eef d\u1eef li\u1ec7u n\u00e0o kh\u00e1c.<\/li>\n<li><strong>Lu\u1ed3ng d\u1eef li\u1ec7u:<\/strong> C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u m\u00f4 t\u1ea3 s\u1ef1 di chuy\u1ec3n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i, c\u00e1c qu\u00e1 tr\u00ecnh v\u00e0 c\u00e1c kho d\u1eef li\u1ec7u. C\u00e1c m\u0169i t\u00ean bi\u1ec3u th\u1ecb h\u01b0\u1edbng di chuy\u1ec3n c\u1ee7a d\u1eef li\u1ec7u.<\/li>\n<\/ol>\n<h2>T\u1ea1o s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco b\u1eb1ng Visual Paradigm Online<\/h2>\n<p>Visual Paradigm Online l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 v\u1ebd s\u01a1 \u0111\u1ed3 m\u1ea1nh m\u1ebd, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea1o s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch b\u1eaft \u0111\u1ea7u:<\/p>\n<ol>\n<li><strong>\u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n Visual Paradigm Online:<\/strong>\n<ul>\n<li>Truy c\u1eadp trang web Visual Paradigm Online v\u00e0 \u0111\u0103ng k\u00fd t\u00e0i kho\u1ea3n mi\u1ec5n ph\u00ed n\u1ebfu b\u1ea1n ch\u01b0a c\u00f3.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ch\u1ecdn m\u1ed9t m\u1eabu s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco:<\/strong>\n<ul>\n<li>Sau khi \u0111\u0103ng nh\u1eadp, ch\u1ecdn \u201cT\u1ea1o s\u01a1 \u0111\u1ed3\u201d t\u1eeb b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li>Ch\u1ecdn danh m\u1ee5c \u201cS\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u\u201d, v\u00e0 b\u1ea1n s\u1ebd t\u00ecm th\u1ea5y nhi\u1ec1u m\u1eabu s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco \u0111\u1ec3 b\u1eaft \u0111\u1ea7u.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Th\u00eam v\u00e0 t\u00f9y ch\u1ec9nh c\u00e1c th\u00e0nh ph\u1ea7n:<\/strong>\n<ul>\n<li>K\u00e9o v\u00e0 th\u1ea3 c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i, c\u00e1c qu\u00e1 tr\u00ecnh, kho d\u1eef li\u1ec7u v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u l\u00ean b\u1ea3ng v\u1ebd c\u1ee7a b\u1ea1n.<\/li>\n<li>Nh\u1ea5p \u0111\u00fap v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ec3 \u0111\u1ed5i t\u00ean v\u00e0 th\u00eam m\u00f4 t\u1ea3.<\/li>\n<\/ul>\n<\/li>\n<li><strong>K\u1ebft n\u1ed1i c\u00e1c th\u00e0nh ph\u1ea7n:<\/strong>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1c m\u0169i t\u00ean \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i, c\u00e1c qu\u00e1 tr\u00ecnh v\u00e0 c\u00e1c kho d\u1eef li\u1ec7u.<\/li>\n<li>Ch\u1ec9 ra h\u01b0\u1edbng di chuy\u1ec3n d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ea7u m\u0169i t\u00ean.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u00e0i li\u1ec7u h\u00f3a s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n:<\/strong>\n<ul>\n<li>Visual Paradigm Online cho ph\u00e9p b\u1ea1n th\u00eam t\u00e0i li\u1ec7u v\u00e0 nh\u1eadn x\u00e9t v\u00e0o s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n \u0111\u1ec3 cung c\u1ea5p b\u1ed1i c\u1ea3nh v\u00e0 gi\u1ea3i th\u00edch.<\/li>\n<\/ul>\n<\/li>\n<li><strong>H\u1ee3p t\u00e1c v\u00e0 chia s\u1ebb:<\/strong>\n<ul>\n<li>H\u1ee3p t\u00e1c v\u1edbi c\u00e1c th\u00e0nh vi\u00ean trong nh\u00f3m b\u1eb1ng c\u00e1ch m\u1eddi h\u1ecd xem ho\u1eb7c ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n.<\/li>\n<li>Chia s\u1ebb s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c b\u00ean li\u00ean quan \u0111\u1ec3 nh\u1eadn ph\u1ea3n h\u1ed3i v\u00e0 xem x\u00e9t.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>H\u1ecdc th\u00f4ng qua v\u00ed d\u1ee5<\/h2>\n<p><a href=\"http:\/\/online.visual-paradigm.com\">Visual Paradigm Online<\/a> cung c\u1ea5p m\u1ed9t b\u1ed9 s\u01b0u t\u1eadp l\u1edbn c\u00e1c <a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/yourdon-demarco-dfd-software\/\">m\u1eabu c\u00f3 s\u1eb5n<\/a> cho s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco. H\u1ecdc th\u00f4ng qua v\u00ed d\u1ee5 l\u00e0 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t khi t\u1ea1o s\u01a1 \u0111\u1ed3 DFD. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng ph\u1ed5 bi\u1ebfn m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c m\u1eabu:<img alt=\"\" class=\"alignnone size-full wp-image-20502\" decoding=\"async\" height=\"751\" loading=\"lazy\" sizes=\"auto, (max-width: 959px) 100vw, 959px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593.png 959w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593-300x235.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593-768x601.png 768w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593-150x117.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_650be1366a593-400x313.png 400w\" width=\"959\"\/><\/p>\n<ol>\n<li><strong>H\u1ec7 th\u1ed1ng x\u1eed l\u00fd \u0111\u01a1n h\u00e0ng:<\/strong> Kh\u00e1m ph\u00e1 m\u1ed9t m\u1eabu cho h\u1ec7 th\u1ed1ng x\u1eed l\u00fd \u0111\u01a1n h\u00e0ng \u0111\u1ec3 hi\u1ec3u c\u00e1ch c\u00e1c \u0111\u01a1n h\u00e0ng kh\u00e1ch h\u00e0ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd, t\u1eeb nh\u1eadp \u0111\u01a1n \u0111\u1ebfn giao h\u00e0ng.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n:<\/strong> S\u1eed d\u1ee5ng m\u1ed9t m\u1eabu cho h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n \u0111\u1ec3 xem c\u00e1ch c\u00e1c cu\u1ed1n s\u00e1ch, \u0111\u1ed9c gi\u1ea3 v\u00e0 ho\u1ea1t \u0111\u1ed9ng th\u01b0 vi\u1ec7n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng theo d\u00f5i t\u1ed3n kho:<\/strong> Xem x\u00e9t m\u1ed9t m\u1eabu cho h\u1ec7 th\u1ed1ng theo d\u00f5i t\u1ed3n kho \u0111\u1ec3 h\u1ecdc c\u00e1ch d\u1eef li\u1ec7u t\u1ed3n kho l\u01b0u th\u00f4ng qua c\u00e1c quy tr\u00ecnh kh\u00e1c nhau.<\/li>\n<\/ol>\n<p>B\u1eb1ng c\u00e1ch xem x\u00e9t c\u00e1c m\u1eabu n\u00e0y v\u00e0 t\u00f9y ch\u1ec9nh ch\u00fang cho c\u00e1c d\u1ef1 \u00e1n c\u1ee7a ri\u00eang b\u1ea1n, b\u1ea1n c\u00f3 th\u1ec3 nhanh ch\u00f3ng n\u1eafm b\u1eaft c\u00e1c nguy\u00ean t\u1eafc t\u1ea1o s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco v\u00e0 \u00e1p d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0o c\u00f4ng t\u00e1c ph\u00e2n t\u00edch v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>S\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a lu\u1ed3ng d\u1eef li\u1ec7u trong m\u1ed9t h\u1ec7 th\u1ed1ng. Visual Paradigm Online \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y nh\u1edd b\u1ed9 s\u01b0u t\u1eadp m\u1eabu phong ph\u00fa, gi\u00fap ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u d\u1ec5 d\u00e0ng h\u1ecdc h\u1ecfi v\u00e0 \u00e1p d\u1ee5ng c\u00e1c kh\u00e1i ni\u1ec7m DFD m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. B\u1eaft \u0111\u1ea7u kh\u00e1m ph\u00e1 v\u00e0 t\u1ea1o s\u01a1 \u0111\u1ed3 DFD ngay h\u00f4m nay \u0111\u1ec3 n\u00e2ng cao k\u1ef9 n\u0103ng ph\u00e2n t\u00edch v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 ghi ch\u00e9p lu\u1ed3ng d\u1eef li\u1ec7u b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco, mang t\u00ean theo c\u00e1c nh\u00e0 s\u00e1ng t\u1ea1o l\u00e0 Edward Yourdon v\u00e0 Tom DeMarco, cung c\u1ea5p m\u1ed9t c\u00e1ch c\u00f3 c\u1ea5u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11105,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[42],"tags":[],"class_list":["post-11104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagram","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco - Visual Paradigm Blog<\/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:\/\/blog.visual-paradigm.com\/vn\/beginners-guide-to-yourdon-demarco-dfd-diagrams\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 s\u01a1 \u0111\u1ed3 DFD c\u1ee7a Yourdon DeMarco - Visual Paradigm Blog\" \/>\n<meta property=\"og:description\" content=\"Gi\u1edbi thi\u1ec7u S\u01a1 \u0111\u1ed3 lu\u1ed3ng d\u1eef li\u1ec7u (DFD) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 ghi ch\u00e9p lu\u1ed3ng d\u1eef li\u1ec7u b\u00ean trong m\u1ed9t h\u1ec7 th\u1ed1ng. 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