{"id":10639,"date":"2026-03-05T05:50:58","date_gmt":"2026-03-04T21:50:58","guid":{"rendered":"https:\/\/www.archimetric.com\/vn\/understanding-use-case-diagrams-concepts-examples-and-relationships\/"},"modified":"2026-03-05T05:50:58","modified_gmt":"2026-03-04T21:50:58","slug":"understanding-use-case-diagrams-concepts-examples-and-relationships","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/vn\/understanding-use-case-diagrams-concepts-examples-and-relationships\/","title":{"rendered":"Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng: Kh\u00e1i ni\u1ec7m, v\u00ed d\u1ee5 v\u00e0 m\u1ed1i quan h\u1ec7"},"content":{"rendered":"<p dir=\"auto\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a> l\u00e0 m\u1ed9t ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ee7a <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\">Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t<\/a> (UML), cung c\u1ea5p m\u1ed9t bi\u1ec3u di\u1ec5n tr\u1ef1c quan v\u1ec1 c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng t\u1eeb g\u00f3c nh\u00ecn ng\u01b0\u1eddi d\u00f9ng. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o c\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, minh h\u1ecda c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a ch\u00fang th\u00f4ng qua m\u1ed9t v\u00ed d\u1ee5, v\u00e0 gi\u1ea3i th\u00edch c\u00e1ch c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n, m\u1edf r\u1ed9ng v\u00e0 bao g\u1ed3m li\u00ean quan \u0111\u1ebfn m\u1eabu tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/p>\n<h2>C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h2>\n<h3>Ng\u01b0\u1eddi d\u00f9ng<\/h3>\n<p dir=\"auto\">Ng\u01b0\u1eddi d\u00f9ng \u0111\u1ea1i di\u1ec7n cho ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. H\u1ecd c\u00f3 th\u1ec3 l\u00e0 ng\u01b0\u1eddi d\u00f9ng, c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng. Ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c h\u00ecnh ng\u01b0\u1eddi d\u1ea1ng que ho\u1eb7c c\u00e1c h\u1ed9p c\u00f3 nh\u00e3n n\u1eb1m b\u00ean ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng.<\/p>\n<h3>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p dir=\"auto\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ea1i di\u1ec7n cho c\u00e1c ch\u1ee9c n\u0103ng ho\u1eb7c d\u1ecbch v\u1ee5 do h\u1ec7 th\u1ed1ng cung c\u1ea5p. Ch\u00fang m\u00f4 t\u1ea3 c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 th\u1ed1ng nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3. C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c h\u00ecnh elip b\u00ean trong ranh gi\u1edbi h\u1ec7 th\u1ed1ng.<\/p>\n<h3>C\u00e1c m\u1ed1i quan h\u1ec7<\/h3>\n<p dir=\"auto\">C\u00e1c m\u1ed1i quan h\u1ec7 th\u1ec3 hi\u1ec7n c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, c\u0169ng nh\u01b0 c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. C\u00e1c m\u1ed1i quan h\u1ec7 ch\u00ednh trong s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0:<\/p>\n<ul>\n<li><strong>Li\u00ean k\u1ebft<\/strong>: M\u1ed9t \u0111\u01b0\u1eddng n\u1ed1i t\u1eeb ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, cho th\u1ea5y ng\u01b0\u1eddi d\u00f9ng tham gia v\u00e0o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u00f3.<\/li>\n<li><strong>Bao g\u1ed3m<\/strong>: M\u1ed9t m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n ch\u1ec9 t\u1eeb m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n \u0111\u1ebfn m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c bao g\u1ed3m, cho th\u1ea5y tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c bao g\u1ed3m l\u00e0 m\u1ed9t ph\u1ea7n b\u1eaft bu\u1ed9c c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n.<\/li>\n<li><strong>M\u1edf r\u1ed9ng<\/strong>: M\u1ed9t m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n ch\u1ec9 t\u1eeb m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u1edf r\u1ed9ng \u0111\u1ebfn m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n, cho th\u1ea5y tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u1edf r\u1ed9ng th\u00eam h\u00e0nh vi t\u00f9y ch\u1ecdn v\u00e0o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh.<\/li>\n<\/ul>\n<h2>V\u00ed d\u1ee5: H\u1ec7 th\u1ed1ng ATM<\/h2>\n<p dir=\"auto\">H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9t h\u1ec7 th\u1ed1ng ATM (m\u00e1y r\u00fat ti\u1ec1n t\u1ef1 \u0111\u1ed9ng) \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang v\u1edbi m\u1eabu tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/p>\n<h3>S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p dir=\"auto\">S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cho h\u1ec7 th\u1ed1ng ATM \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u00ean d\u01b0\u1edbi:<\/p>\n<p dir=\"auto\"><a href=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2025\/02\/sample_use_case_diagram_19967.png\"><img alt=\"Use Case Diagram notations guide - Visual Paradigm\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2025\/02\/sample_use_case_diagram_19967.png\"\/><\/a><\/p>\n<p dir=\"auto\"><strong>Ng\u01b0\u1eddi d\u00f9ng<\/strong>:<\/p>\n<ul>\n<li>Ng\u01b0\u1eddi d\u00f9ng<\/li>\n<\/ul>\n<p dir=\"auto\"><strong>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\u0110\u0103ng nh\u1eadp<\/li>\n<li>R\u00fat ti\u1ec1n<\/li>\n<li>Ki\u1ec3m tra s\u1ed1 d\u01b0<\/li>\n<li>\u1ee6ng h\u1ed9 ti\u1ec1n cho t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n<\/li>\n<li>Chuy\u1ec3n ti\u1ec1n<\/li>\n<li>Thanh to\u00e1n h\u00f3a \u0111\u01a1n<\/li>\n<\/ul>\n<p dir=\"auto\"><strong>M\u1ed1i quan h\u1ec7<\/strong>:<\/p>\n<ul>\n<li>Use case &#8220;\u0110\u0103ng nh\u1eadp&#8221; l\u00e0 m\u1ed9t use case c\u01a1 b\u1ea3n bao g\u1ed3m c\u00e1c use case kh\u00e1c nh\u01b0 &#8220;R\u00fat ti\u1ec1n m\u1eb7t&#8221;, &#8220;Ki\u1ec3m tra s\u1ed1 d\u01b0&#8221;, &#8220;\u1ee6ng h\u1ed9 ti\u1ec1n cho t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n&#8221;, &#8220;Chuy\u1ec3n ti\u1ec1n&#8221;, v\u00e0 &#8220;Thanh to\u00e1n h\u00f3a \u0111\u01a1n&#8221;.<\/li>\n<li>Use case &#8220;\u0110\u0103ng nh\u1eadp&#8221; c\u00f3 c\u00e1c \u0111i\u1ec3m m\u1edf r\u1ed9ng \u0111\u1ec3 x\u1eed l\u00fd m\u1eadt kh\u1ea9u kh\u00f4ng h\u1ee3p l\u1ec7 v\u00e0 th\u1eddi gian h\u1ebft phi\u00ean.<\/li>\n<\/ul>\n<h3>M\u1eabu use case<\/h3>\n<p dir=\"auto\">C\u00e1c m\u1eabu use case cung c\u1ea5p t\u00e0i li\u1ec7u chi ti\u1ebft v\u1ec1 t\u1eebng use case, bao g\u1ed3m m\u00f4 t\u1ea3, ng\u01b0\u1eddi tham gia, \u0111i\u1ec1u ki\u1ec7n ti\u1ec1n \u0111\u1ec1, \u0111i\u1ec1u ki\u1ec7n h\u1eadu qu\u1ea3 v\u00e0 lu\u1ed3ng s\u1ef1 ki\u1ec7n.<\/p>\n<p dir=\"auto\"><strong>V\u00ed d\u1ee5: M\u1eabu use case cho &#8220;\u0110\u0103ng nh\u1eadp&#8221;<\/strong><\/p>\n<ul>\n<li><strong>T\u00ean use case<\/strong>: \u0110\u0103ng nh\u1eadp<\/li>\n<li><strong>Ng\u01b0\u1eddi tham gia<\/strong>: Ng\u01b0\u1eddi d\u00f9ng<\/li>\n<li><strong>\u0110i\u1ec1u ki\u1ec7n ti\u1ec1n \u0111\u1ec1<\/strong>: Ng\u01b0\u1eddi d\u00f9ng \u0111ang \u1edf m\u00e1y ATM.<\/li>\n<li><strong>\u0110i\u1ec1u ki\u1ec7n h\u1eadu qu\u1ea3<\/strong>: Ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 \u0111\u0103ng nh\u1eadp, ho\u1eb7c m\u1ed9t th\u00f4ng b\u00e1o l\u1ed7i \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/li>\n<li><strong>Lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/strong>:\n<ol>\n<li>Ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0a th\u1ebb ATM v\u00e0o m\u00e1y.<\/li>\n<li>H\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u nh\u1eadp m\u1eadt kh\u1ea9u.<\/li>\n<li>Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1eadt kh\u1ea9u.<\/li>\n<li>H\u1ec7 th\u1ed1ng x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u.<\/li>\n<li>N\u1ebfu m\u1eadt kh\u1ea9u \u0111\u00fang, h\u1ec7 th\u1ed1ng s\u1ebd \u0111\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>N\u1ebfu m\u1eadt kh\u1ea9u sai, h\u1ec7 th\u1ed1ng x\u1eed l\u00fd m\u1eadt kh\u1ea9u kh\u00f4ng h\u1ee3p l\u1ec7 (m\u1edf r\u1ed9ng).<\/li>\n<li>N\u1ebfu phi\u00ean h\u1ebft h\u1ea1n, h\u1ec7 th\u1ed1ng x\u1eed l\u00fd h\u1ebft th\u1eddi gian phi\u00ean (m\u1edf r\u1ed9ng).<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<p dir=\"auto\"><strong>\u0110i\u1ec3m m\u1edf r\u1ed9ng<\/strong>:<\/p>\n<ul>\n<li><strong>M\u1eadt kh\u1ea9u kh\u00f4ng h\u1ee3p l\u1ec7<\/strong>:\n<ul>\n<li><strong>\u0110i\u1ec1u ki\u1ec7n<\/strong>: M\u1eadt kh\u1ea9u nh\u1eadp v\u00e0o kh\u00f4ng \u0111\u00fang.<\/li>\n<li><strong>Lu\u1ed3ng<\/strong>:\n<ol>\n<li>H\u1ec7 th\u1ed1ng hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i.<\/li>\n<li>H\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u.<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>H\u1ebft th\u1eddi gian phi\u00ean<\/strong>:\n<ul>\n<li><strong>\u0110i\u1ec1u ki\u1ec7n<\/strong>: Ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh.<\/li>\n<li><strong>Lu\u1ed3ng<\/strong>:\n<ol>\n<li>H\u1ec7 th\u1ed1ng \u0111\u0103ng xu\u1ea5t ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>H\u1ec7 th\u1ed1ng hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o h\u1ebft th\u1eddi gian.<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h3>\n<p dir=\"auto\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 m\u00f4 h\u00ecnh h\u00f3a h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch hi\u1ec3n th\u1ecb c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian. Ch\u00fang t\u1eadp trung v\u00e0o th\u1ee9 t\u1ef1 c\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c trao \u0111\u1ed5i gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p dir=\"auto\"><strong>V\u00ed d\u1ee5: S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho \u201c\u0110\u0103ng nh\u1eadp\u201d<\/strong><\/p>\n<p dir=\"auto\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u201c\u0110\u0103ng nh\u1eadp\u201d \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u00ean d\u01b0\u1edbi:<\/p>\n<p dir=\"auto\"><img decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2025\/02\/img_67a0838ad45d2.png\"\/><\/p>\n<p dir=\"auto\"><strong>\u0110\u1ed1i t\u01b0\u1ee3ng<\/strong>:<\/p>\n<ul>\n<li>Ng\u01b0\u1eddi d\u00f9ng<\/li>\n<li>M\u00e1y ATM<\/li>\n<li>H\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng<\/li>\n<\/ul>\n<p dir=\"auto\"><strong>Tin nh\u1eafn<\/strong>:<\/p>\n<ol>\n<li>Ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0a th\u1ebb ATM v\u00e0o.<\/li>\n<li>M\u00e1y ATM g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng \u0111\u1ec3 x\u00e1c th\u1ef1c th\u1ebb.<\/li>\n<li>H\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng x\u00e1c th\u1ef1c th\u1ebb v\u00e0 g\u1eedi ph\u1ea3n h\u1ed3i v\u1ec1 m\u00e1y ATM.<\/li>\n<li>M\u00e1y ATM y\u00eau c\u1ea7u nh\u1eadp m\u1eadt kh\u1ea9u.<\/li>\n<li>Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1eadt kh\u1ea9u.<\/li>\n<li>M\u00e1y ATM g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng \u0111\u1ec3 x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u.<\/li>\n<li>H\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u v\u00e0 g\u1eedi ph\u1ea3n h\u1ed3i v\u1ec1 m\u00e1y ATM.<\/li>\n<li>N\u1ebfu m\u1eadt kh\u1ea9u \u0111\u00fang, m\u00e1y ATM \u0111\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>N\u1ebfu m\u1eadt kh\u1ea9u sai, m\u00e1y ATM x\u1eed l\u00fd m\u1eadt kh\u1ea9u kh\u00f4ng h\u1ee3p l\u1ec7 (m\u1edf r\u1ed9ng).<\/li>\n<li>N\u1ebfu phi\u00ean h\u1ebft h\u1ea1n, m\u00e1y ATM x\u1eed l\u00fd h\u1ebft th\u1eddi gian phi\u00ean (m\u1edf r\u1ed9ng).<\/li>\n<\/ol>\n<h2>C\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c s\u01a1 \u0111\u1ed3<\/h2>\n<h3>S\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n v\u00e0 bao g\u1ed3m<\/h3>\n<p dir=\"auto\">S\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p &#8220;\u0110\u0103ng nh\u1eadp&#8221; l\u00e0 m\u1ed9t s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n bao g\u1ed3m c\u00e1c s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nh\u01b0 &#8220;R\u00fat ti\u1ec1n&#8221;, &#8220;Ki\u1ec3m tra s\u1ed1 d\u01b0&#8221;, &#8220;T\u00e0i tr\u1ee3 cho t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n&#8221;, &#8220;Chuy\u1ec3n ti\u1ec1n&#8221; v\u00e0 &#8220;Thanh to\u00e1n h\u00f3a \u0111\u01a1n.&#8221; \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i \u0111\u0103ng nh\u1eadp tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 h\u00e0nh \u0111\u1ed9ng n\u00e0o trong s\u1ed1 n\u00e0y. M\u1ed1i quan h\u1ec7 bao g\u1ed3m \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t m\u0169i t\u00ean n\u00e9t \u0111\u1ee9t ch\u1ec9 t\u1eeb s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00e1c s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p \u0111\u01b0\u1ee3c bao g\u1ed3m.<\/p>\n<h3>M\u1edf r\u1ed9ng<\/h3>\n<p dir=\"auto\">S\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p &#8220;\u0110\u0103ng nh\u1eadp&#8221; c\u00f3 c\u00e1c \u0111i\u1ec3m m\u1edf r\u1ed9ng \u0111\u1ec3 x\u1eed l\u00fd m\u1eadt kh\u1ea9u kh\u00f4ng h\u1ee3p l\u1ec7 v\u00e0 th\u1eddi gian h\u1ebft phi\u00ean. M\u1ed1i quan h\u1ec7 m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t m\u0169i t\u00ean n\u00e9t \u0111\u1ee9t ch\u1ec9 t\u1eeb s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p m\u1edf r\u1ed9ng \u0111\u1ebfn s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n. C\u00e1c s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p m\u1edf r\u1ed9ng th\u00eam h\u00e0nh vi t\u00f9y ch\u1ecdn v\u00e0o s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<h3>M\u1eabu s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h3>\n<p dir=\"auto\">C\u00e1c m\u1eabu s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p cung c\u1ea5p m\u00f4 t\u1ea3 chi ti\u1ebft v\u1ec1 s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p, bao g\u1ed3m lu\u1ed3ng s\u1ef1 ki\u1ec7n. S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 tr\u1ef1c quan h\u00f3a h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p b\u1eb1ng c\u00e1ch hi\u1ec3n th\u1ecb c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng theo th\u1eddi gian. Lu\u1ed3ng s\u1ef1 ki\u1ec7n trong m\u1eabu s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng \u1ee9ng v\u1edbi tr\u00ecnh t\u1ef1 tin nh\u1eafn trong s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p dir=\"auto\">S\u01a1 \u0111\u1ed3 s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 ghi l\u1ea1i c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng t\u1eeb g\u00f3c nh\u00ecn ng\u01b0\u1eddi d\u00f9ng. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh v\u1ec1 ng\u01b0\u1eddi d\u00f9ng, s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p v\u00e0 m\u1ed1i quan h\u1ec7, \u0111\u1ed3ng th\u1eddi t\u00edch h\u1ee3p s\u01a1 \u0111\u1ed3 s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p v\u1edbi c\u00e1c m\u1eabu s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, b\u1ea1n c\u00f3 th\u1ec3 m\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 h\u00e0nh vi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. V\u00ed d\u1ee5 v\u1ec1 h\u1ec7 th\u1ed1ng ATM minh h\u1ecda c\u00e1ch c\u00e1c s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p c\u01a1 b\u1ea3n, s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p m\u1edf r\u1ed9ng v\u00e0 s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p bao g\u1ed3m li\u00ean quan \u0111\u1ebfn m\u1eabu s\u1eed d\u1ee5ng tr\u01b0\u1eddng h\u1ee3p v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c y\u00eau c\u1ea7u v\u00e0 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ol>\n<li>\n<p dir=\"auto\"><strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 Visual Paradigm<\/strong><\/p>\n<ul>\n<li>B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch r\u1eb1ng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c nh\u1ea5n m\u1ea1nh th\u1ee9 t\u1ef1 th\u1eddi gian c\u1ee7a c\u00e1c tin nh\u1eafn. N\u00f3 chi ti\u1ebft c\u00e1ch s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 m\u00f4 t\u1ea3 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 l\u1edbp tham gia v\u00e0o m\u1ed9t t\u00ecnh hu\u1ed1ng v\u00e0 tr\u00ecnh t\u1ef1 tin nh\u1eafn \u0111\u01b0\u1ee3c trao \u0111\u1ed5i gi\u1eefa ch\u00fang.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\" rel=\"noopener\" target=\"_blank\">11<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec?<\/strong><\/p>\n<ul>\n<li>H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1, gi\u1ea3i th\u00edch r\u1eb1ng ch\u00fang 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, bao g\u1ed3m tin nh\u1eafn n\u00e0o \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 khi n\u00e0o. N\u00f3 c\u0169ng th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1ch s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo th\u1eddi gian.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec?<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\" rel=\"noopener\" target=\"_blank\">12<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1?<\/strong><\/p>\n<ul>\n<li>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc n\u00e0y ch\u1ec9 c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML b\u1eb1ng Visual Paradigm. N\u00f3 bao g\u1ed3m h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng tr\u00ecnh ch\u1ec9nh s\u1eeda \u0111\u1ec3 x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u1edbi c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi v\u00e0 tin nh\u1eafn.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\/7025_drawingseque.html\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1?<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\/7025_drawingseque.html\" rel=\"noopener\" target=\"_blank\">13<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML?<\/strong><\/p>\n<ul>\n<li>H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 c\u00e1ch v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML, b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u01a1n gi\u1ea3n v\u00e0 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ed9ng li\u00ean quan \u0111\u1ebfn m\u1ed9t l\u1edbp \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/tutorials\/how-to-draw-uml-sequence-diagram.jsp\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML?<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/tutorials\/how-to-draw-uml-sequence-diagram.jsp\" rel=\"noopener\" target=\"_blank\">14<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>H\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 Visual Paradigm<\/strong><\/p>\n<ul>\n<li>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec v\u00e0 cung c\u1ea5p c\u00e1c h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc v\u1ec1 c\u00e1ch v\u1ebd m\u1ed9t s\u01a1 \u0111\u1ed3 nh\u01b0 v\u1eady. N\u00f3 c\u0169ng khuy\u1ebfn kh\u00edch ng\u01b0\u1eddi d\u00f9ng t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 c\u1ee7a ri\u00eang m\u00ecnh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Visual Paradigm Online.<\/li>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/sequence-diagram-tutorial\/\">H\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/sequence-diagram-tutorial\/\" rel=\"noopener\" target=\"_blank\">15<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong Visual Paradigm<\/strong><\/p>\n<ul>\n<li>Ch\u01b0\u01a1ng n\u00e0y t\u1eadp trung v\u00e0o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong Visual Paradigm, gi\u1ea3i th\u00edch c\u00e1ch v\u1ebd ch\u00fang v\u00e0 m\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a ch\u00fang l\u00e0 th\u1ec3 hi\u1ec7n c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng theo th\u1ee9 t\u1ef1 tu\u1ea7n t\u1ef1.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 trong Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\" rel=\"noopener\" target=\"_blank\">16<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 S\u01a1 \u0111\u1ed3 UML \u2013 Visual Paradigm<\/strong><\/p>\n<ul>\n<li>B\u00e0i vi\u1ebft n\u00e0y th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1ch s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 m\u00f4 ph\u1ecfng s\u1ef1 h\u1ee3p t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng d\u1ef1a tr\u00ean th\u1ee9 t\u1ef1 th\u1eddi gian, cho th\u1ea5y c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c trong m\u1ed9t t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/diagrams\/Sequence.html\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 S\u01a1 \u0111\u1ed3 UML \u2013 Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/diagrams\/Sequence.html\" rel=\"noopener\" target=\"_blank\">17<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>V\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 C\u1ed9ng \u0111\u1ed3ng Visual Paradigm<\/strong><\/p>\n<ul>\n<li>V\u00ed d\u1ee5 n\u00e0y minh h\u1ecda m\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 m\u00f4 t\u1ea3 chi ti\u1ebft c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c, bao g\u1ed3m th\u00f4ng \u0111i\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 khi n\u00e0o. N\u00f3 c\u0169ng gi\u1ea3i th\u00edch c\u00e1ch s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo th\u1eddi gian.<\/li>\n<li><a href=\"https:\/\/circle.visual-paradigm.com\/sequence-diagram-example\/\">V\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u2013 C\u1ed9ng \u0111\u1ed3ng Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/circle.visual-paradigm.com\/sequence-diagram-example\/\" rel=\"noopener\" target=\"_blank\">18<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p dir=\"auto\"><strong>S\u1eed d\u1ee5ng tham chi\u1ebfu \u2013 C\u1ed9ng \u0111\u1ed3ng Visual Paradigm<\/strong><\/p>\n<ul>\n<li>V\u00ed d\u1ee5 n\u00e0y hi\u1ec3n th\u1ecb m\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 tham chi\u1ebfu \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 \u201cTra c\u1ee9u s\u1ed1 d\u01b0\u201d v\u00e0 \u201cT\u00e0i kho\u1ea3n n\u1ee3.\u201d N\u00f3 gi\u1ea3i th\u00edch c\u00e1ch chu\u1ed7i b\u1eaft \u0111\u1ea7u v\u00e0 ti\u1ebfn tri\u1ec3n qua c\u00e1c t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau.<\/li>\n<li><a href=\"https:\/\/circle.visual-paradigm.com\/using-references\/\">S\u1eed d\u1ee5ng tham chi\u1ebfu \u2013 C\u1ed9ng \u0111\u1ed3ng Visual Paradigm<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/circle.visual-paradigm.com\/using-references\/\" rel=\"noopener\" target=\"_blank\">19<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ee7a Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML),<\/p>\n","protected":false},"author":3479,"featured_media":10640,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/images.visual-paradigm.com\/docs\/vp_user_guide\/11\/94\/2575\/2745\/sample_use_case_diagram_19967.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-10639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - 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