{"id":3359,"date":"2026-02-25T01:51:42","date_gmt":"2026-02-25T01:51:42","guid":{"rendered":"https:\/\/www.diagrams-ai.com\/vn\/uml-sequence-diagrams-the-comprehensive-guide-to-interaction-modeling\/"},"modified":"2026-02-25T01:51:42","modified_gmt":"2026-02-25T01:51:42","slug":"uml-sequence-diagrams-the-comprehensive-guide-to-interaction-modeling","status":"publish","type":"post","link":"https:\/\/www.diagrams-ai.com\/vn\/uml-sequence-diagrams-the-comprehensive-guide-to-interaction-modeling\/","title":{"rendered":"S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a t\u01b0\u01a1ng t\u00e1c"},"content":{"rendered":"<h1>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a t\u01b0\u01a1ng t\u00e1c<\/h1>\n<p>Trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng. Trong s\u1ed1 c\u00e1c c\u00f4ng c\u1ee5 s\u1eb5n c\u00f3 trong kho v\u0169 kh\u00ed c\u1ee7a Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML),<strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/strong> n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1c h\u00e0nh vi \u0111\u1ed9ng. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y kh\u00e1m ph\u00e1 \u0111\u1ecbnh ngh\u0129a, m\u1ee5c \u0111\u00edch, k\u00fd hi\u1ec7u v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec?<\/h2>\n<p>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML l\u00e0 c\u00e1c s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c m\u00f4 t\u1ea3 chi ti\u1ebft c\u00e1ch th\u1ee9c th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c. Ch\u00fang ghi l\u1ea1i t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong b\u1ed1i c\u1ea3nh m\u1ed9t s\u1ef1 h\u1ee3p t\u00e1c. Kh\u00e1c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 t\u0129nh th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0<strong>t\u1eadp trung v\u00e0o th\u1eddi gian<\/strong>. Ch\u00fang tr\u1ef1c quan minh h\u1ecda th\u1ee9 t\u1ef1 t\u01b0\u01a1ng t\u00e1c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tr\u1ee5c \u0111\u1ee9ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u1eddi gian, cho th\u1ea5y ch\u00ednh x\u00e1c th\u00f4ng \u0111i\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 v\u00e0o th\u1eddi \u0111i\u1ec3m n\u00e0o.<\/p>\n<p>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 th\u01b0\u1eddng ghi l\u1ea1i:<\/p>\n<ul>\n<li>T\u01b0\u01a1ng t\u00e1c di\u1ec5n ra trong m\u1ed9t s\u1ef1 h\u1ee3p t\u00e1c nh\u1eb1m th\u1ef1c hi\u1ec7n m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ho\u1eb7c m\u1ed9t thao t\u00e1c.<\/li>\n<li>C\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ea5p cao gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 th\u1ed1ng, gi\u1eefa h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c, ho\u1eb7c gi\u1eefa c\u00e1c ti\u1ec3u h\u1ec7 th\u1ed1ng (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 h\u1ec7 th\u1ed1ng).<\/li>\n<\/ul>\n<h2>C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh: C\u00e1c chi\u1ec1u c\u1ee7a t\u01b0\u01a1ng t\u00e1c<\/h2>\n<p>\u0110\u1ec3 th\u00e0nh th\u1ea1o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, ng\u01b0\u1eddi ta ph\u1ea3i hi\u1ec3u c\u00e1ch ch\u00fang t\u1ed5 ch\u1ee9c th\u00f4ng tin. C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian, \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo hai chi\u1ec1u c\u1ee5 th\u1ec3:<\/p>\n<h3>1. Chi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng (ngang)<\/h3>\n<p>Tr\u1ee5c ngang hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c. Theo quy \u01b0\u1edbc, c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea t\u1eeb tr\u00e1i sang ph\u1ea3i d\u1ef1a tr\u00ean th\u1eddi \u0111i\u1ec3m ch\u00fang tham gia v\u00e0o chu\u1ed7i tin nh\u1eafn. Tuy nhi\u00ean, th\u1ee9 t\u1ef1 nghi\u00eam ng\u1eb7t kh\u00f4ng b\u1eaft bu\u1ed9c; c\u00e1c th\u00e0nh ph\u1ea7n tr\u00ean tr\u1ee5c ngang c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n theo b\u1ea5t k\u1ef3 th\u1ee9 t\u1ef1 n\u00e0o gi\u00fap t\u0103ng t\u00ednh d\u1ec5 \u0111\u1ecdc.<\/p>\n<h3>2. Chi\u1ec1u th\u1eddi gian (d\u1ecdc)<\/h3>\n<p>Tr\u1ee5c d\u1ecdc bi\u1ec3u di\u1ec5n th\u1eddi gian ti\u1ebfn d\u1ea7n xu\u1ed1ng trang. R\u1ea5t quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd r\u1eb1ng th\u1eddi gian trong s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn<strong>th\u1ee9 t\u1ef1<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ed9 d\u00e0i. Kho\u1ea3ng c\u00e1ch d\u1ecdc gi\u1eefa c\u00e1c tin nh\u1eafn th\u01b0\u1eddng kh\u00f4ng li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 d\u00e0i th\u1ef1c t\u1ebf c\u1ee7a t\u01b0\u01a1ng t\u00e1c, tr\u1eeb khi \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n c\u1ee5 th\u1ec3 b\u1eb1ng c\u00e1c tin nh\u1eafn th\u1eddi gian.<\/p>\n<h2>M\u1ee5c \u0111\u00edch c\u1ee7a s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n<p>T\u1ea1i sao m\u1ed9t nh\u00f3m n\u00ean d\u00e0nh th\u1eddi gian \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y? Ch\u00fang ph\u1ee5c v\u1ee5 nhi\u1ec1u m\u1ee5c \u0111\u00edch m\u00f4 h\u00ecnh h\u00f3a quan tr\u1ecdng:<\/p>\n<ul>\n<li><strong>T\u01b0\u01a1ng t\u00e1c c\u1ea5p cao:<\/strong>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee7 \u0111\u1ed9ng trong m\u1ed9t h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>Th\u1ef1c hi\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c th\u1ec3 hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3.<\/li>\n<li><strong>Th\u1ef1c hi\u1ec7n thao t\u00e1c:<\/strong>Chi ti\u1ebft h\u00f3a t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n m\u1ed9t thao t\u00e1c c\u1ee5 th\u1ec3.<\/li>\n<li><strong>T\u1ed5ng qu\u00e1t so v\u1edbi c\u1ee5 th\u1ec3:<\/strong> Ch\u00fang c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c t\u1ed5ng qu\u00e1t (hi\u1ec3n th\u1ecb t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng \u0111i kh\u1ea3 d\u0129) ho\u1eb7c c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 (ch\u1ec9 hi\u1ec3n th\u1ecb m\u1ed9t \u0111\u01b0\u1eddng \u0111i qua t\u01b0\u01a1ng t\u00e1c).<\/li>\n<\/ul>\n<h2>K\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n<p>Hi\u1ec3u r\u00f5 k\u00fd hi\u1ec7u chu\u1ea9n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ecdc v\u00e0 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Visual Paradigm v\u00e0 UML chu\u1ea9n.<\/p>\n<h3>Ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111\u01b0\u1eddng \u0111\u1eddi<\/h3>\n<ul>\n<li><strong>Ng\u01b0\u1eddi d\u00f9ng:<\/strong> \u0110\u1ea1i di\u1ec7n cho m\u1ed9t vai tr\u00f2 do m\u1ed9t th\u1ef1c th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u1ee7 th\u1ec3 (v\u00ed d\u1ee5: ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c ph\u1ea7n c\u1ee9ng b\u00ean ngo\u00e0i). Ng\u01b0\u1eddi d\u00f9ng n\u1eb1m ngo\u00e0i h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a.<\/li>\n<li><strong>\u0110\u01b0\u1eddng \u0111\u1eddi:<\/strong> \u0110\u1ea1i di\u1ec7n cho m\u1ed9t th\u00e0nh vi\u00ean ri\u00eang l\u1ebb trong t\u01b0\u01a1ng t\u00e1c. N\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n tr\u1ef1c quan b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t k\u00e9o d\u00e0i t\u1eeb m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li><strong>K\u00edch ho\u1ea1t (t\u1eadp trung ki\u1ec3m so\u00e1t):<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt m\u1ecfng tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi (c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 ki\u1ec7n th\u1ef1c thi). \u0110i\u1ec1u n\u00e0y ch\u1ec9 ra kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t thao t\u00e1c. Ph\u1ea7n tr\u00ean tr\u00f9ng v\u1edbi th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u, v\u00e0 ph\u1ea7n d\u01b0\u1edbi tr\u00f9ng v\u1edbi th\u1eddi \u0111i\u1ec3m ho\u00e0n th\u00e0nh.<\/li>\n<\/ul>\n<h3>Lo\u1ea1i tin nh\u1eafn<\/h3>\n<p>C\u00e1c tin nh\u1eafn x\u00e1c \u0111\u1ecbnh s\u1ef1 giao ti\u1ebfp gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi. C\u00e1c ki\u1ec3u m\u0169i t\u00ean kh\u00e1c nhau bi\u1ec3u th\u1ecb c\u00e1c lo\u1ea1i tin nh\u1eafn kh\u00e1c nhau:<\/p>\n<ul>\n<li><strong>Tin nh\u1eafn g\u1ecdi:<\/strong> \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c g\u1ecdi m\u1ed9t thao t\u00e1c tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch.<\/li>\n<li><strong>Tin nh\u1eafn tr\u1ea3 v\u1ec1:<\/strong> \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c truy\u1ec1n th\u00f4ng tin tr\u1edf l\u1ea1i ng\u01b0\u1eddi g\u1ecdi c\u1ee7a m\u1ed9t tin nh\u1eafn tr\u01b0\u1edbc \u0111\u00f3.<\/li>\n<li><strong>Tin nh\u1eafn t\u1ef1 th\u00e2n:<\/strong> \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c g\u1ecdi m\u1ed9t tin nh\u1eafn tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi.<\/li>\n<li><strong>Tin nh\u1eafn \u0111\u1ec7 quy:<\/strong> M\u1ed9t bi\u1ebfn th\u1ec3 c\u1ee7a tin nh\u1eafn t\u1ef1 th\u00e2n, trong \u0111\u00f3 m\u1ee5c ti\u00eau tr\u1ecf \u0111\u1ebfn m\u1ed9t k\u00edch ho\u1ea1t m\u1edbi n\u1eb1m tr\u00ean \u0111\u1ec9nh k\u00edch ho\u1ea1t hi\u1ec7n t\u1ea1i.<\/li>\n<li><strong>Tin nh\u1eafn t\u1ea1o:<\/strong> \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c kh\u1edfi t\u1ea1o m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch.<\/li>\n<li><strong>Tin nh\u1eafn h\u1ee7y:<\/strong> M\u1ed9t y\u00eau c\u1ea7u \u0111\u1ec3 k\u1ebft th\u00fac v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch.<\/li>\n<li><strong>Tin nh\u1eafn th\u1eddi gian:<\/strong> hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng kho\u1ea3ng th\u1eddi gian gi\u1eefa hai th\u1eddi \u0111i\u1ec3m g\u1ecdi m\u1ed9t tin nh\u1eafn.<\/li>\n<\/ul>\n<h2>M\u00f4 h\u00ecnh h\u00f3a n\u00e2ng cao: C\u00e1c \u0111o\u1ea1n tu\u1ea7n t\u1ef1<\/h2>\n<p>UML 2.0 \u0111\u00e3 gi\u1edbi thi\u1ec7u<strong>C\u00e1c \u0111o\u1ea1n tu\u1ea7n t\u1ef1<\/strong> (hay c\u00f2n g\u1ecdi l\u00e0 c\u00e1c \u0111o\u1ea1n t\u01b0\u01a1ng t\u00e1c) \u0111\u1ec3 qu\u1ea3n l\u00fd logic ph\u1ee9c t\u1ea1p nh\u01b0 v\u00f2ng l\u1eb7p, nh\u00e1nh v\u00e0 l\u1ef1a ch\u1ecdn b\u00ean trong m\u1ed9t s\u01a1 \u0111\u1ed3. M\u1ed9t \u0111o\u1ea1n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u1ed9p bao quanh m\u1ed9t ph\u1ea7n c\u1ee7a t\u01b0\u01a1ng t\u00e1c.<\/p>\n<p>C\u00e1c to\u00e1n t\u1eed \u0111o\u1ea1n ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>alt (Thay th\u1ebf):<\/strong>M\u00f4 h\u00ecnh h\u00f3a nhi\u1ec1u \u0111o\u1ea1n, ch\u1ec9 c\u00f3 \u0111o\u1ea1n c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u00fang m\u1edbi \u0111\u01b0\u1ee3c th\u1ef1c thi (gi\u1ed1ng nh\u01b0 m\u1ed9t c\u00e2u l\u1ec7nh if\/else).<\/li>\n<li><strong>opt (T\u00f9y ch\u1ecdn):<\/strong>\u0110o\u1ea1n n\u00e0y ch\u1ec9 \u0111\u01b0\u1ee3c th\u1ef1c thi n\u1ebfu \u0111i\u1ec1u ki\u1ec7n l\u00e0 \u0111\u00fang.<\/li>\n<li><strong>par (Song song):<\/strong>C\u00e1c \u0111o\u1ea1n ch\u1ea1y song song.<\/li>\n<li><strong>loop (V\u00f2ng l\u1eb7p):<\/strong>\u0110o\u1ea1n n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c thi nhi\u1ec1u l\u1ea7n d\u1ef1a tr\u00ean m\u1ed9t \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7.<\/li>\n<li><strong>region (V\u00f9ng quan tr\u1ecdng):<\/strong>Ch\u1ec9 m\u1ed9t lu\u1ed3ng c\u00f3 th\u1ec3 th\u1ef1c thi \u0111o\u1ea1n n\u00e0y t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/li>\n<li><strong>neg (Ti\u00eau c\u1ef1c):<\/strong>Th\u1ec3 hi\u1ec7n m\u1ed9t t\u01b0\u01a1ng t\u00e1c kh\u00f4ng h\u1ee3p l\u1ec7.<\/li>\n<li><strong>ref (Tham chi\u1ebfu):<\/strong>Ch\u1ec9 \u0111\u1ebfn m\u1ed9t t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong s\u01a1 \u0111\u1ed3 kh\u00e1c, cho ph\u00e9p v\u1ebd s\u01a1 \u0111\u1ed3 theo m\u00f4-\u0111un.<\/li>\n<\/ul>\n<h2>V\u00ed d\u1ee5: T\u1eeb Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ebfn T\u00ecnh hu\u1ed1ng<\/h2>\n<p>M\u1ed9t \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 l\u1ea5p \u0111\u1ea7y kho\u1ea3ng c\u00e1ch gi\u1eefa y\u00eau c\u1ea7u v\u00e0 thi\u1ebft k\u1ebf. C\u00e1c y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c ghi l\u1ea1i d\u01b0\u1edbi d\u1ea1ng<strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong>, m\u00f4 t\u1ea3 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c t\u00e1c nh\u00e2n v\u00e0 h\u1ec7 th\u1ed1ng.<\/p>\n<p>M\u1ed9t<strong>T\u00ecnh hu\u1ed1ng<\/strong>l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng \u0111i ho\u1eb7c lu\u1ed3ng duy nh\u1ea5t qua m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. V\u00ed d\u1ee5, trong m\u1ed9t &#8220;H\u1ec7 th\u1ed1ng Kh\u00e1ch s\u1ea1n,&#8221; m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng chung c\u00f3 th\u1ec3 l\u00e0 &#8220;\u0110\u1eb7t ph\u00f2ng.&#8221; M\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 s\u1ebd minh h\u1ecda t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 c\u1ee7a vi\u1ec7c \u0111\u1eb7t ph\u00f2ng th\u00e0nh c\u00f4ng: \u0111\u1ed1i t\u01b0\u1ee3ng <em>C\u1eeda s\u1ed5 \u0110\u1eb7t ph\u00f2ng<\/em>b\u1eaft \u0111\u1ea7u m\u1ed9t chu\u1ed7i tin nh\u1eafn \u0111\u1ec3 ki\u1ec3m tra kh\u1ea3 n\u0103ng s\u1eb5n s\u00e0ng, t\u1ea1o \u0111\u1eb7t ch\u1ed7 v\u00e0 x\u00e1c nh\u1eadn v\u1edbi ng\u01b0\u1eddi d\u00f9ng. C\u00e1ch nh\u00ecn \u0111\u1ed9ng n\u00e0y b\u1ed5 sung cho c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp t\u0129nh b\u1eb1ng c\u00e1ch th\u1ec3 hi\u1ec7n<em>c\u00e1ch<\/em>c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng h\u1ee3p t\u00e1c v\u1edbi nhau.<\/p>\n<h2>Nguy\u00ean t\u1eafc: M\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1edbc khi vi\u1ebft m\u00e3<\/h2>\n<p>M\u1ed9t c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn n\u1ea3y sinh:<em>&#8220;T\u1ea1i sao kh\u00f4ng ch\u1ec9 vi\u1ebft m\u00e3 thu\u1eadt to\u00e1n thay v\u00ec v\u1ebd n\u00f3?&#8221;<\/em>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u00e0 l\u00fd do v\u00ec sao n\u00ean m\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1edbc:<\/p>\n<ul>\n<li><strong>M\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng:<\/strong> M\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 t\u1ed1t n\u1eb1m \u1edf m\u1ee9c \u0111\u1ed9 h\u01a1i cao h\u01a1n m\u00e3 th\u1ef1c t\u1ebf, cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan r\u00f5 r\u00e0ng m\u00e0 kh\u00f4ng b\u1ecb r\u1ed1i r\u1eafm b\u1edfi c\u00e1c quy t\u1eafc c\u00fa ph\u00e1p.<\/li>\n<li><strong>T\u00ednh trung l\u1eadp ng\u00f4n ng\u1eef:<\/strong>C\u00e1c s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3u b\u1edfi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n b\u1ea5t k\u1ec3 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u01b0a th\u00edch c\u1ee7a h\u1ecd.<\/li>\n<li><strong>H\u1ee3p t\u00e1c:<\/strong>Nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng ph\u1ea3i l\u1eadp tr\u00ecnh vi\u00ean (nh\u01b0 c\u00e1c nh\u00e0 ph\u00e2n t\u00edch kinh doanh) c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 \u0111\u00f3ng g\u00f3p v\u00e0o c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, l\u00e0m cho ch\u00fang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 giao ti\u1ebfp tuy\u1ec7t v\u1eddi cho nh\u00f3m.<\/li>\n<li><strong>Ki\u1ec3m th\u1eed v\u00e0 UX:<\/strong>Ch\u00fang v\u00f4 c\u00f9ng qu\u00fd gi\u00e1 trong vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch c\u00e1c k\u1ecbch b\u1ea3n ki\u1ec3m th\u1eed v\u00e0 ph\u00e1c th\u1ea3o giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n<p>B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0<strong>Visual Paradigm Community Edition<\/strong>, c\u00e1c \u0111\u1ed9i c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 tr\u1ef1c quan, tu\u00e2n th\u1ee7 chu\u1ea9n, bi\u1ebfn c\u00e1c d\u1ef1 \u00e1n ph\u1ea7n m\u1ec1m th\u00e0nh nh\u1eefng tri\u1ec3n khai th\u00e0nh c\u00f4ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a t\u01b0\u01a1ng t\u00e1c Trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng. Trong s\u1ed1 c\u00e1c c\u00f4ng c\u1ee5 s\u1eb5n c\u00f3 trong kho v\u0169 kh\u00ed c\u1ee7a Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML),S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 n\u1ed5i b\u1eadt nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1c h\u00e0nh vi \u0111\u1ed9ng. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y kh\u00e1m ph\u00e1 \u0111\u1ecbnh ngh\u0129a, m\u1ee5c \u0111\u00edch, k\u00fd hi\u1ec7u v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 hi\u1ec7u qu\u1ea3. S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec? S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML l\u00e0 c\u00e1c s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c m\u00f4 t\u1ea3 chi ti\u1ebft c\u00e1ch th\u1ee9c th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c. Ch\u00fang ghi l\u1ea1i t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong b\u1ed1i c\u1ea3nh m\u1ed9t s\u1ef1 h\u1ee3p t\u00e1c. Kh\u00e1c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 t\u0129nh th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0t\u1eadp trung v\u00e0o th\u1eddi gian. Ch\u00fang tr\u1ef1c quan minh h\u1ecda th\u1ee9 t\u1ef1 t\u01b0\u01a1ng t\u00e1c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tr\u1ee5c \u0111\u1ee9ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u1eddi gian, cho th\u1ea5y ch\u00ednh x\u00e1c th\u00f4ng \u0111i\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 v\u00e0o th\u1eddi \u0111i\u1ec3m n\u00e0o. S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 th\u01b0\u1eddng ghi l\u1ea1i: T\u01b0\u01a1ng t\u00e1c di\u1ec5n ra trong m\u1ed9t s\u1ef1 h\u1ee3p t\u00e1c nh\u1eb1m th\u1ef1c hi\u1ec7n m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ho\u1eb7c m\u1ed9t thao t\u00e1c. C\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ea5p cao gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 th\u1ed1ng, gi\u1eefa h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c, ho\u1eb7c gi\u1eefa c\u00e1c ti\u1ec3u h\u1ec7 th\u1ed1ng (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 h\u1ec7 th\u1ed1ng). C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh: C\u00e1c chi\u1ec1u c\u1ee7a t\u01b0\u01a1ng t\u00e1c \u0110\u1ec3 th\u00e0nh th\u1ea1o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, ng\u01b0\u1eddi ta ph\u1ea3i hi\u1ec3u c\u00e1ch ch\u00fang t\u1ed5 ch\u1ee9c th\u00f4ng tin. C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian, \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo hai chi\u1ec1u c\u1ee5 th\u1ec3: 1. Chi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng (ngang) Tr\u1ee5c ngang hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c. Theo quy \u01b0\u1edbc, c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea t\u1eeb tr\u00e1i sang ph\u1ea3i d\u1ef1a tr\u00ean th\u1eddi \u0111i\u1ec3m ch\u00fang tham gia v\u00e0o chu\u1ed7i tin nh\u1eafn. Tuy nhi\u00ean, th\u1ee9 t\u1ef1 nghi\u00eam ng\u1eb7t kh\u00f4ng b\u1eaft bu\u1ed9c; c\u00e1c th\u00e0nh ph\u1ea7n tr\u00ean tr\u1ee5c ngang c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n theo b\u1ea5t k\u1ef3 th\u1ee9 t\u1ef1 n\u00e0o gi\u00fap t\u0103ng t\u00ednh d\u1ec5 \u0111\u1ecdc. 2. Chi\u1ec1u th\u1eddi gian (d\u1ecdc) Tr\u1ee5c d\u1ecdc bi\u1ec3u di\u1ec5n th\u1eddi gian ti\u1ebfn d\u1ea7n xu\u1ed1ng trang. R\u1ea5t quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd r\u1eb1ng th\u1eddi gian trong s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfnth\u1ee9 t\u1ef1, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ed9 d\u00e0i. Kho\u1ea3ng c\u00e1ch d\u1ecdc gi\u1eefa c\u00e1c tin nh\u1eafn th\u01b0\u1eddng kh\u00f4ng li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 d\u00e0i th\u1ef1c t\u1ebf c\u1ee7a t\u01b0\u01a1ng t\u00e1c, tr\u1eeb khi \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n c\u1ee5 th\u1ec3 b\u1eb1ng c\u00e1c tin nh\u1eafn th\u1eddi gian. M\u1ee5c \u0111\u00edch c\u1ee7a s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 T\u1ea1i sao m\u1ed9t nh\u00f3m n\u00ean d\u00e0nh th\u1eddi gian \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y? Ch\u00fang ph\u1ee5c v\u1ee5 nhi\u1ec1u m\u1ee5c \u0111\u00edch m\u00f4 h\u00ecnh h\u00f3a quan tr\u1ecdng: T\u01b0\u01a1ng t\u00e1c c\u1ea5p cao:M\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee7 \u0111\u1ed9ng trong m\u1ed9t h\u1ec7 th\u1ed1ng. Th\u1ef1c hi\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:M\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c th\u1ec3 hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3. Th\u1ef1c hi\u1ec7n thao t\u00e1c:Chi ti\u1ebft h\u00f3a t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n m\u1ed9t thao t\u00e1c c\u1ee5 th\u1ec3. T\u1ed5ng qu\u00e1t so v\u1edbi c\u1ee5 th\u1ec3: Ch\u00fang c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c t\u1ed5ng qu\u00e1t (hi\u1ec3n th\u1ecb t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng \u0111i kh\u1ea3 d\u0129) ho\u1eb7c c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 (ch\u1ec9 hi\u1ec3n th\u1ecb m\u1ed9t \u0111\u01b0\u1eddng \u0111i qua t\u01b0\u01a1ng t\u00e1c). K\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 Hi\u1ec3u r\u00f5 k\u00fd hi\u1ec7u chu\u1ea9n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ecdc v\u00e0 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Visual Paradigm v\u00e0 UML chu\u1ea9n. Ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111\u01b0\u1eddng \u0111\u1eddi Ng\u01b0\u1eddi d\u00f9ng: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t vai tr\u00f2 do m\u1ed9t th\u1ef1c th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u1ee7 th\u1ec3 (v\u00ed d\u1ee5: ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c ph\u1ea7n c\u1ee9ng b\u00ean ngo\u00e0i). Ng\u01b0\u1eddi d\u00f9ng n\u1eb1m ngo\u00e0i h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a. \u0110\u01b0\u1eddng \u0111\u1eddi: \u0110\u1ea1i di\u1ec7n cho m\u1ed9t th\u00e0nh vi\u00ean ri\u00eang l\u1ebb trong t\u01b0\u01a1ng t\u00e1c. N\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n tr\u1ef1c quan b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t k\u00e9o d\u00e0i t\u1eeb m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c ng\u01b0\u1eddi d\u00f9ng. K\u00edch ho\u1ea1t (t\u1eadp trung ki\u1ec3m so\u00e1t): \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt m\u1ecfng tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi (c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 ki\u1ec7n th\u1ef1c thi). \u0110i\u1ec1u n\u00e0y ch\u1ec9 ra kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t thao t\u00e1c. Ph\u1ea7n tr\u00ean tr\u00f9ng v\u1edbi th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u, v\u00e0 ph\u1ea7n d\u01b0\u1edbi tr\u00f9ng v\u1edbi th\u1eddi \u0111i\u1ec3m ho\u00e0n th\u00e0nh. Lo\u1ea1i tin nh\u1eafn C\u00e1c tin nh\u1eafn x\u00e1c \u0111\u1ecbnh s\u1ef1 giao ti\u1ebfp gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi. C\u00e1c ki\u1ec3u m\u0169i t\u00ean kh\u00e1c nhau bi\u1ec3u th\u1ecb c\u00e1c lo\u1ea1i tin nh\u1eafn kh\u00e1c nhau: Tin nh\u1eafn g\u1ecdi: \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c g\u1ecdi m\u1ed9t thao t\u00e1c tr\u00ean \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch. Tin nh\u1eafn tr\u1ea3 v\u1ec1: \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c truy\u1ec1n th\u00f4ng tin tr\u1edf l\u1ea1i ng\u01b0\u1eddi g\u1ecdi c\u1ee7a m\u1ed9t tin nh\u1eafn tr\u01b0\u1edbc \u0111\u00f3. Tin nh\u1eafn t\u1ef1 th\u00e2n: \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c g\u1ecdi m\u1ed9t tin nh\u1eafn tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi. Tin nh\u1eafn \u0111\u1ec7 quy: M\u1ed9t bi\u1ebfn th\u1ec3 c\u1ee7a tin nh\u1eafn t\u1ef1 th\u00e2n, trong \u0111\u00f3 m\u1ee5c ti\u00eau tr\u1ecf \u0111\u1ebfn m\u1ed9t k\u00edch ho\u1ea1t m\u1edbi n\u1eb1m tr\u00ean \u0111\u1ec9nh k\u00edch ho\u1ea1t hi\u1ec7n t\u1ea1i. Tin nh\u1eafn t\u1ea1o: \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c kh\u1edfi t\u1ea1o m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch. Tin nh\u1eafn h\u1ee7y: M\u1ed9t y\u00eau c\u1ea7u \u0111\u1ec3 k\u1ebft th\u00fac v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u01b0\u1eddng \u0111\u1eddi \u0111\u00edch. Tin nh\u1eafn th\u1eddi gian: hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng kho\u1ea3ng th\u1eddi gian gi\u1eefa hai th\u1eddi \u0111i\u1ec3m g\u1ecdi m\u1ed9t tin nh\u1eafn. M\u00f4 h\u00ecnh h\u00f3a n\u00e2ng cao: C\u00e1c \u0111o\u1ea1n tu\u1ea7n t\u1ef1 UML 2.0 \u0111\u00e3 gi\u1edbi thi\u1ec7uC\u00e1c \u0111o\u1ea1n tu\u1ea7n t\u1ef1 (hay c\u00f2n g\u1ecdi l\u00e0 c\u00e1c \u0111o\u1ea1n t\u01b0\u01a1ng t\u00e1c) \u0111\u1ec3 qu\u1ea3n l\u00fd logic ph\u1ee9c t\u1ea1p nh\u01b0 v\u00f2ng l\u1eb7p, nh\u00e1nh v\u00e0 l\u1ef1a ch\u1ecdn b\u00ean trong m\u1ed9t s\u01a1 \u0111\u1ed3. M\u1ed9t \u0111o\u1ea1n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u1ed9p bao quanh m\u1ed9t ph\u1ea7n c\u1ee7a t\u01b0\u01a1ng t\u00e1c. C\u00e1c to\u00e1n t\u1eed \u0111o\u1ea1n ph\u1ed5 bi\u1ebfn bao g\u1ed3m: alt (Thay<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n","_yoast_wpseo_metadesc":"N\u1eafm v\u1eefng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML v\u1edbi h\u01b0\u1edbng d\u1eabn n\u00e0y. H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u, t\u01b0\u01a1ng t\u00e1c, \u0111o\u1ea1n m\u00e3 v\u00e0 c\u00e1ch m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 b\u1eb1ng Visual Paradigm.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[56],"tags":[],"class_list":["post-3359","post","type-post","status-publish","format-standard","hentry","category-uml"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n<\/title>\n<meta name=\"description\" content=\"N\u1eafm v\u1eefng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML v\u1edbi h\u01b0\u1edbng d\u1eabn n\u00e0y. 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