{"id":12223,"date":"2026-08-03T15:17:00","date_gmt":"2026-08-03T07:17:00","guid":{"rendered":"https:\/\/www.cybermedian.com\/vn\/use-case-driven-approach-guide\/"},"modified":"2026-09-03T22:38:39","modified_gmt":"2026-09-03T14:38:39","slug":"use-case-driven-approach-guide","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/vn\/use-case-driven-approach-guide\/","title":{"rendered":"L\u00e0m ch\u1ee7 Ph\u01b0\u01a1ng ph\u00e1p H\u01b0\u1edbng d\u1eabn b\u1edfi Use Case: H\u01b0\u1edbng d\u1eabn To\u00e0n di\u1ec7n v\u1ec1 Y\u00eau c\u1ea7u v\u00e0 Thi\u1ebft k\u1ebf"},"content":{"rendered":"<div>\n<div>\n<div>\n<div>\n<div>\n<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Trong k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m, vi\u1ec7c thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa nhu c\u1ea7u c\u1ee7a c\u00e1c b\u00ean li\u00ean quan v\u00e0 vi\u1ec7c tri\u1ec3n khai k\u1ef9 thu\u1eadt th\u01b0\u1eddng l\u00e0 giai \u0111o\u1ea1n kh\u00f3 kh\u0103n nh\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n. Ph\u01b0\u01a1ng ph\u00e1p <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\"><strong>Ph\u01b0\u01a1ng ph\u00e1p H\u01b0\u1edbng d\u1eabn b\u1edfi Use Case<\/strong>\u00a0<\/a>cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn c\u00f3 c\u1ea5u tr\u00fac v\u00e0 l\u1eb7p l\u1ea1i \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y. B\u1eb1ng c\u00e1ch t\u1eadp trung v\u00e0o <em>c\u00e1ch ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng<\/em>\u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c y\u00eau c\u1ea7u r\u00f5 r\u00e0ng, c\u00f3 th\u1ec3 ki\u1ec3m th\u1eed v\u00e0 c\u00f3 th\u1ec3 truy xu\u1ea5t tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c t\u00e0i li\u1ec7u thi\u1ebft k\u1ebf.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t quy tr\u00ecnh to\u00e0n di\u1ec7n v\u1ec1 <a href=\"https:\/\/www.visual-paradigm.com\/solution\/use-case-driven-agile-approach\/\">Ph\u01b0\u01a1ng ph\u00e1p H\u01b0\u1edbng d\u1eabn b\u1edfi Use Case<\/a>, di chuy\u1ec3n t\u1eeb c\u00e1c y\u00eau c\u1ea7u c\u1ea5p cao \u0111\u1ebfn thi\u1ebft k\u1ebf chi ti\u1ebft. Ch\u00fang ta s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t v\u00ed d\u1ee5 duy nh\u1ea5t \u0111ang ch\u1ea1y\u2014m\u1ed9t <strong>H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd \u0110\u01a1n h\u00e0ng Tr\u1ef1c tuy\u1ebfn<\/strong>\u2014\u0111\u1ec3 minh h\u1ecda cho t\u1eebng giai \u0111o\u1ea1n, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 r\u00f5 r\u00e0ng trong su\u1ed1t qu\u00e1 tr\u00ecnh.<\/p>\n<hr\/>\n<h2>T\u1ed5ng quan v\u1ec1 Ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p H\u01b0\u1edbng d\u1eabn b\u1edfi Use Case tu\u00e2n theo m\u1ed9t qu\u00e1 tr\u00ecnh ti\u1ebfn tri\u1ec3n t\u1ef1 nhi\u00ean t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi. M\u1ed7i giai \u0111o\u1ea1n tinh ch\u1ec9nh giai \u0111o\u1ea1n tr\u01b0\u1edbc \u0111\u00f3, t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 gi\u1ea3m s\u1ef1 m\u01a1 h\u1ed3.<\/p>\n<p id=\"evBQyyp\"><img alt=\"T\u1ed5ng quan v\u1ec1 Ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn: C\u00e1ch ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean Use Case v\u1edbi AI + VPasCode\" class=\"alignnone wp-image-19634 size-full\" decoding=\"async\" height=\"559\" loading=\"lazy\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704033c90ce.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704033c90ce.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704033c90ce-300x164.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704033c90ce-768x419.png 768w\" width=\"1024\"\/><\/p>\n<h3>T\u1ea1i sao th\u1ee9 t\u1ef1 n\u00e0y l\u1ea1i quan tr\u1ecdng?<\/h3>\n<ol>\n<li><strong><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/use-case-diagram-tutorial\/\">Bi\u1ec3u \u0111\u1ed3 Use Case<\/a>:<\/strong> Cung c\u1ea5p m\u1ed9t danh m\u1ee5c \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1c kh\u1ea3 n\u0103ng v\u00e0 ph\u1ea1m vi. N\u00f3 nhanh ch\u00f3ng \u0111\u1ec3 qu\u00e9t v\u00e0 l\u00fd t\u01b0\u1edfng cho s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a c\u00e1c b\u00ean li\u00ean quan v\u1ec1 <em>c\u00e1i g\u00ec<\/em> m\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m.<\/li>\n<li><strong><a href=\"https:\/\/www.visual-paradigm.com\/guide\/use-case\/what-is-use-case-specification\/\">M\u00f4 t\u1ea3 Use Case<\/a>:<\/strong> Lo\u1ea1i b\u1ecf s\u1ef1 m\u01a1 h\u1ed3 b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh r\u00f5 c\u00e1c \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft, \u0111i\u1ec1u ki\u1ec7n h\u1eadu qu\u1ea3, c\u00e1c vai tr\u00f2 v\u00e0 m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean. N\u00f3 \u201c\u0111\u00f3ng b\u0103ng\u201d h\u1ee3p \u0111\u1ed3ng h\u00e0nh vi.<\/li>\n<li><strong><a href=\"https:\/\/www.visual-paradigm.com\/tutorials\/flowofeventeditor.jsp\">Lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/a>:<\/strong> Bi\u1ebfn h\u1ee3p \u0111\u1ed3ng th\u00e0nh c\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 v\u00e0 c\u00f3 th\u1ec3 ki\u1ec3m th\u1eed. \u0110i\u1ec1u n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 cho c\u1ea3 c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed v\u00e0 thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt.<\/li>\n<li><strong><a href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/diagrams\/Activity.html\">Ho\u1ea1t \u0111\u1ed9ng<\/a>\/<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">Bi\u1ec3u \u0111\u1ed3 Chu\u1ed7i<\/a>:<\/strong> \u0110\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i \u0111\u1ebfn m\u00e3 ngu\u1ed3n. N\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng tham gia, tr\u00e1ch nhi\u1ec7m c\u1ee7a ch\u00fang, c\u00e1c trao \u0111\u1ed5i th\u00f4ng \u0111i\u1ec7p v\u00e0 c\u00e1c quy t\u1eafc ph\u00e2n nh\u00e1nh ch\u00ednh x\u00e1c.<\/li>\n<\/ol>\n<hr\/>\n<h2>Giai \u0111o\u1ea1n 1: Bi\u1ec3u \u0111\u1ed3 Use Case (Y\u00eau c\u1ea7u)<\/h2>\n<p>Bi\u1ec3u \u0111\u1ed3 Use Case n\u1eafm b\u1eaft<strong>ai<\/strong> t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng (<strong>c\u00e1c t\u00e1c nh\u00e2n<\/strong>) v\u00e0<strong>c\u00e1i g\u00ec<\/strong> h\u1ecd c\u00f3 th\u1ec3 l\u00e0m (<strong>c\u00e1c use case<\/strong>), c\u00f9ng v\u1edbi c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang.<\/p>\n<h3>C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh<\/h3>\n<ul>\n<li><strong>T\u00e1c nh\u00e2n ch\u00ednh:<\/strong> Kh\u1edfi t\u1ea1o use case (\u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf b\u00ean tr\u00e1i).<\/li>\n<li><strong>T\u00e1c nh\u00e2n ph\u1ee5:<\/strong> H\u1ed7 tr\u1ee3 h\u1ec7 th\u1ed1ng ho\u1eb7c nh\u1eadn th\u00f4ng b\u00e1o (\u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf b\u00ean ph\u1ea3i).<\/li>\n<li><strong>Bi\u00ean gi\u1edbi h\u1ec7 th\u1ed1ng:<\/strong> H\u00ecnh ch\u1eef nh\u1eadt x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong><code data-backticks=\"1\">&lt;&lt;include&gt;&gt;<\/code>:<\/strong> \u0110\u1ea1i di\u1ec7n cho h\u00e0nh vi chia s\u1ebb b\u1eaft bu\u1ed9c. N\u1ebfu Use Case A bao g\u1ed3m Use Case B, B<em> ph\u1ea3i<\/em> x\u1ea3y ra th\u00ec A m\u1edbi ho\u00e0n th\u00e0nh.<\/li>\n<li><strong><code data-backticks=\"1\">&lt;&lt;extend&gt;&gt;<\/code>:<\/strong> \u0110\u1ea1i di\u1ec7n cho h\u00e0nh vi t\u00f9y ch\u1ecdn. Use Case B m\u1edf r\u1ed9ng Use Case A ch\u1ec9 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5: H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd \u0111\u01a1n h\u00e0ng tr\u1ef1c tuy\u1ebfn<\/h3>\n<p id=\"tvaWVJN\"><img alt=\"Bi\u1ec3u \u0111\u1ed3 Use Case cho h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd \u0111\u01a1n h\u00e0ng tr\u1ef1c tuy\u1ebfn, th\u1ec3 hi\u1ec7n t\u01b0\u01a1ng t\u00e1c gi\u1eefa Kh\u00e1ch h\u00e0ng v\u00e0 Kho h\u00e0ng.\" class=\"alignnone size-full wp-image-19640\" decoding=\"async\" height=\"874\" loading=\"lazy\" sizes=\"auto, (max-width: 1917px) 100vw, 1917px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e.png 1917w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e-300x137.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e-1024x467.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e-768x350.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70411b9ee3e-1536x700.png 1536w\" width=\"1917\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\nskinparam linetype ortho\r\nskinparam defaultFontSize 14\r\nskinparam defaultFontColor #333333\r\nskinparam vpDiagramType UseCaseDiagram\r\nskinparam actor {\r\n  BackgroundColor #E8F5E9\r\n}\r\nskinparam usecase {\r\n  BackgroundColor #BBDEFB\r\n  BorderColor #1976D2\r\n  ArrowColor #1976D2\r\n}\r\n\r\nleft to right direction\r\nactor \"Customern(Primary)\" as cust\r\nactor \"Warehousen(Secondary)\" as wh\r\n\r\nrectangle \"Order Management System\" {\r\n  usecase \"Place Order\" as UC1\r\n  usecase \"Cancel Order\" as UC2\r\n  usecase \"Track Order\" as UC3\r\n  usecase \"Login\" as UC4\r\n  usecase \"Print Invoice\" as UC5\r\n}\r\n\r\ncust -[#black]- UC1\r\ncust -[#black]- UC2\r\ncust -[#black]- UC3\r\nUC1 -[#crimson]- wh\r\nUC2 -[#crimson]- wh\r\nUC1 ...&gt; UC4 : &lt;&lt;include&gt;&gt;\r\nUC2 ...&gt; UC4 : &lt;&lt;include&gt;&gt;\r\nUC3 ...&gt; UC4 : &lt;&lt;include&gt;&gt;\r\nUC1 &lt;... UC5 : &lt;&lt;extend&gt;&gt;\r\n@enduml\r\n<\/code><\/pre>\n<p><strong>Ph\u00e2n t\u00edch bi\u1ec3u \u0111\u1ed3:<\/strong><\/p>\n<ul>\n<li>Bi\u1ec3u \u0111\u1ed3<strong>Kh\u00e1ch h\u00e0ng<\/strong>\u00a0kh\u1edfi t\u1ea1o vi\u1ec7c \u0111\u1eb7t h\u00e0ng, h\u1ee7y \u0111\u01a1n v\u00e0 theo d\u00f5i \u0111\u01a1n h\u00e0ng.<\/li>\n<li>Kho h\u00e0ng<strong>Kho h\u00e0ng<\/strong>\u00a0tham gia v\u00e0o vi\u1ec7c \u0111\u1eb7t v\u00e0 h\u1ee7y \u0111\u01a1n h\u00e0ng (c\u00f3 th\u1ec3 \u0111\u1ec3 c\u1eadp nh\u1eadt t\u1ed3n kho).<\/li>\n<li><strong>\u0110\u0103ng nh\u1eadp<\/strong>\u00a0\u0111\u01b0\u1ee3c bao g\u1ed3m trong c\u00e1c ch\u1ee9c n\u0103ng \u0110\u1eb7t h\u00e0ng, H\u1ee7y \u0111\u01a1n v\u00e0 Theo d\u00f5i \u0111\u01a1n h\u00e0ng, c\u00f3 ngh\u0129a l\u00e0 x\u00e1c th\u1ef1c l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi c\u00e1c h\u00e0nh \u0111\u1ed9ng n\u00e0y.<\/li>\n<li><strong>In h\u00f3a \u0111\u01a1n<\/strong>\u00a0m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng \u0110\u1eb7t h\u00e0ng, c\u00f3 ngh\u0129a \u0111\u00e2y l\u00e0 b\u01b0\u1edbc t\u00f9y ch\u1ecdn c\u00f3 th\u1ec3 x\u1ea3y ra sau khi \u0111\u01a1n h\u00e0ng \u0111\u01b0\u1ee3c \u0111\u1eb7t.<\/li>\n<\/ul>\n<hr\/>\n<h2>Giai \u0111o\u1ea1n 2: M\u00f4 t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng (Quy c\u00e1ch)<\/h2>\n<p>Bi\u1ec3u \u0111\u1ed3 ch\u1ec9 n\u00eau t\u00ean c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0ng thi\u1ebfu chi ti\u1ebft. B\u1ea3ng <a href=\"https:\/\/www.visual-paradigm.com\/features\/use-case-description\/\">M\u00f4 t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>quy \u0111\u1ecbnh h\u1ee3p \u0111\u1ed3ng ch\u00ednh x\u00e1c cho t\u1eebng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<h3>V\u00ed d\u1ee5: UC-01 \u0110\u1eb7t h\u00e0ng<\/h3>\n<table>\n<thead>\n<tr>\n<th>Tr\u01b0\u1eddng<\/th>\n<th>Gi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>ID tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong><\/td>\n<td>UC-01<\/td>\n<\/tr>\n<tr>\n<td><strong>T\u00ean<\/strong><\/td>\n<td>\u0110\u1eb7t h\u00e0ng<\/td>\n<\/tr>\n<tr>\n<td><strong>Di\u1ec5n vi\u00ean ch\u00ednh<\/strong><\/td>\n<td>Kh\u00e1ch h\u00e0ng<\/td>\n<\/tr>\n<tr>\n<td><strong>Di\u1ec5n vi\u00ean ph\u1ee5<\/strong><\/td>\n<td>Kho h\u00e0ng<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft<\/strong><\/td>\n<td>Kh\u00e1ch h\u00e0ng \u0111\u00e3 \u0111\u0103ng nh\u1eadp; gi\u1ecf h\u00e0ng ch\u1ee9a \u00edt nh\u1ea5t m\u1ed9t m\u1eb7t h\u00e0ng; h\u00e0ng h\u00f3a c\u00f2n trong kho<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u1eadu \u0111i\u1ec1u ki\u1ec7n (Th\u00e0nh c\u00f4ng)<\/strong><\/td>\n<td>\u0110\u01a1n h\u00e0ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef v\u1edbi tr\u1ea1ng th\u00e1i <code data-backticks=\"1\">\u0111\u00e3 x\u00e1c nh\u1eadn<\/code>; thanh to\u00e1n \u0111\u00e3 \u0111\u01b0\u1ee3c ghi nh\u1eadn; s\u1ed1 theo d\u00f5i \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u1eadu \u0111i\u1ec1u ki\u1ec7n (L\u1ed7i)<\/strong><\/td>\n<td>Kh\u00f4ng t\u1ea1o \u0111\u01a1n h\u00e0ng; gi\u1ecf h\u00e0ng kh\u00f4ng thay \u0111\u1ed5i; ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o l\u00fd do<\/td>\n<\/tr>\n<tr>\n<td><strong>Lu\u1ed3ng ch\u00ednh<\/strong><\/td>\n<td>\u2192 Xem Giai \u0111o\u1ea1n 3<\/td>\n<\/tr>\n<tr>\n<td><strong>Lu\u1ed3ng thay th\u1ebf \/ Lu\u1ed3ng ngo\u1ea1i l\u1ec7<\/strong><\/td>\n<td>H\u00e0ng t\u1ed3n kho kh\u00f4ng \u0111\u1ee7; thanh to\u00e1n b\u1ecb t\u1eeb ch\u1ed1i<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean<\/strong><\/td>\n<td>Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>M\u1ee5c \u0111\u00edch:<\/strong>\u00a0Giai \u0111o\u1ea1n n\u00e0y x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec ph\u1ea3i \u0111\u00fang\u00a0<em>tr\u01b0\u1edbc<\/em>\u00a0khi k\u1ecbch b\u1ea3n s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c th\u1ef1c thi (ti\u1ec1n \u0111i\u1ec1u ki\u1ec7n) v\u00e0 nh\u1eefng g\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o\u00a0<em>sau<\/em>\u00a0(h\u1eadu \u0111i\u1ec1u ki\u1ec7n), thi\u1ebft l\u1eadp c\u00e1c ti\u00eau ch\u00ed th\u00e0nh c\u00f4ng\/l\u1ed7i r\u00f5 r\u00e0ng.<\/p>\n<hr\/>\n<h2>Giai \u0111o\u1ea1n 3: <a href=\"https:\/\/guides.visual-paradigm.com\/mastering-use-case-elaboration-flow-of-events-and-sequence-diagrams\/\">Lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/a> (C\u00e1c k\u1ecbch b\u1ea3n)<\/h2>\n<p>\u0110\u00e2y l\u00e0 tr\u00e1i tim h\u00e0nh vi c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn. K\u1ecbch b\u1ea3n s\u1eed d\u1ee5ng \u201c\u0110\u1eb7t h\u00e0ng\u201d \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng th\u00e0nh m\u1ed9t\u00a0<strong>k\u1ecbch b\u1ea3n k\u1ecbch b\u1ea3n<\/strong>\u2014m\u1ed9t chu\u1ed7i c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 \u0111\u01b0\u1ee3c vi\u1ebft tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 s\u01a1 \u0111\u1ed3 thi\u1ebft k\u1ebf chi ti\u1ebft n\u00e0o \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n<h3>K\u1ecbch b\u1ea3n th\u00e0nh c\u00f4ng ch\u00ednh (Lu\u1ed3ng c\u01a1 b\u1ea3n)<\/h3>\n<ol>\n<li>Kh\u00e1ch h\u00e0ng \u0111\u0103ng nh\u1eadp.<\/li>\n<li>Kh\u00e1ch h\u00e0ng g\u1eedi gi\u1ecf h\u00e0ng v\u1edbi c\u00e1c m\u1eb7t h\u00e0ng \u0111\u00e3 ch\u1ecdn.<\/li>\n<li>H\u1ec7 th\u1ed1ng x\u00e1c th\u1ef1c n\u1ed9i dung gi\u1ecf h\u00e0ng v\u00e0 t\u00ecnh tr\u1ea1ng s\u1eb5n c\u00f3 c\u1ee7a h\u00e0ng t\u1ed3n kho.<\/li>\n<li>H\u1ec7 th\u1ed1ng t\u00ednh ph\u00ed t\u1ed5ng s\u1ed1 ti\u1ec1n th\u00f4ng qua c\u1ed5ng thanh to\u00e1n.<\/li>\n<li>H\u1ec7 th\u1ed1ng l\u01b0u \u0111\u01a1n h\u00e0ng v\u1edbi tr\u1ea1ng th\u00e1i\u00a0<code data-backticks=\"1\">\u0111\u00e3 x\u00e1c nh\u1eadn<\/code>.<\/li>\n<li>H\u1ec7 th\u1ed1ng tr\u1ea3 v\u1ec1 x\u00e1c nh\u1eadn \u0111\u01a1n h\u00e0ng k\u00e8m theo m\u00e3 \u0111\u01a1n h\u00e0ng.<\/li>\n<li>H\u1ec7 th\u1ed1ng th\u00f4ng b\u00e1o cho Kho h\u00e0ng \u0111\u1ec3 l\u1ea5y h\u00e0ng, \u0111\u00f3ng g\u00f3i v\u00e0 v\u1eadn chuy\u1ec3n.<\/li>\n<\/ol>\n<h3>C\u00e1c k\u1ecbch b\u1ea3n thay th\u1ebf<\/h3>\n<ul>\n<li><strong>3a. H\u00e0ng t\u1ed3n kho kh\u00f4ng \u0111\u1ee7:<\/strong> H\u1ec7 th\u1ed1ng b\u00e1o c\u00e1o c\u00e1c m\u1eb7t h\u00e0ng kh\u00f4ng kh\u1ea3 d\u1ee5ng v\u00e0 quay l\u1ea1i gi\u1ecf h\u00e0ng.<\/li>\n<li><strong>4a. Thanh to\u00e1n b\u1ecb t\u1eeb ch\u1ed1i:<\/strong> H\u1ec7 th\u1ed1ng th\u00f4ng b\u00e1o cho kh\u00e1ch h\u00e0ng v\u00e0 kh\u00f4ng t\u1ea1o \u0111\u01a1n h\u00e0ng.<\/li>\n<\/ul>\n<p><strong>Quy \u01b0\u1edbc ch\u00ednh:<\/strong> M\u1ed7i k\u1ecbch b\u1ea3n \u00e1nh x\u1ea1 tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1ed9t b\u01b0\u1edbc trong m\u00f4 t\u1ea3. C\u00e1c lu\u1ed3ng n\u00e0y tr\u1edf th\u00e0nh c\u01a1 s\u1edf cho c\u00e1c bi\u1ec3u \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng v\u00e0 Chu\u1ed7i trong giai \u0111o\u1ea1n ti\u1ebfp theo.<\/p>\n<hr\/>\n<h2>Giai \u0111o\u1ea1n 4: Thi\u1ebft k\u1ebf chi ti\u1ebft (Bi\u1ec3u \u0111\u1ed3 Chu\u1ed7i &amp; Bi\u1ec3u \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng)<\/h2>\n<p>\u1ede giai \u0111o\u1ea1n n\u00e0y, b\u1ea1n ch\u1ecdn k\u00fd hi\u1ec7u d\u1ef1a tr\u00ean kh\u00eda c\u1ea1nh n\u00e0o c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e0 b\u1ea1n mu\u1ed1n nh\u1ea5n m\u1ea1nh.<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">Bi\u1ec3u \u0111\u1ed3 Chu\u1ed7i<\/a>:<\/strong> Nh\u1ea5n m\u1ea1nh<strong>\u0111\u01b0\u1eddng \u0111\u1eddi, th\u1ee9 t\u1ef1 tin nh\u1eafn v\u00e0 tr\u00e1ch nhi\u1ec7m gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng<\/strong>. L\u00fd t\u01b0\u1edfng \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c l\u1edbp v\u00e0 ph\u01b0\u01a1ng th\u1ee9c.<\/li>\n<li><strong>Bi\u1ec3u \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng:<\/strong> Nh\u1ea5n m\u1ea1nh<strong>lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh th\u00f4ng qua c\u00e1c l\u00e0n\/ph\u00e2n c\u00f4ng<\/strong>. L\u00fd t\u01b0\u1edfng \u0111\u1ec3 t\u00e0i li\u1ec7u h\u00f3a c\u00e1c quy tr\u00ecnh v\u00e0 tr\u00e1ch nhi\u1ec7m vai tr\u00f2.<\/li>\n<\/ul>\n<h3>4A. <a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">Bi\u1ec3u \u0111\u1ed3 Chu\u1ed7i<\/a> (G\u00f3c \u0111\u1ed9 T\u01b0\u01a1ng t\u00e1c)<\/h3>\n<p id=\"AXQWPIw\"><img alt=\"Bi\u1ec3u \u0111\u1ed3 tr\u00ecnh t\u1ef1 minh h\u1ecda quy tr\u00ecnh \u0110\u1eb7t h\u00e0ng v\u1edbi c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa Kh\u00e1ch h\u00e0ng, D\u1ecbch v\u1ee5 \u0110\u01a1n h\u00e0ng, C\u1ed5ng thanh to\u00e1n v\u00e0 C\u01a1 s\u1edf d\u1eef li\u1ec7u \u0110\u01a1n h\u00e0ng.\" class=\"alignnone size-full wp-image-19639\" decoding=\"async\" height=\"875\" loading=\"lazy\" sizes=\"auto, (max-width: 1917px) 100vw, 1917px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272.png 1917w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272-300x137.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272-1024x467.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272-768x351.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7040f350272-1536x701.png 1536w\" width=\"1917\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\ntitle Place Order Sequence Diagram\r\nskinparam linetype ortho\r\nskinparam defaultFontSize 14\r\nskinparam defaultFontColor #333333\r\nskinparam sequenceParticipant underline\r\nskinparam vpDiagramType InteractionDiagram\r\nskinparam {\r\n  FontSize 14\r\n  ArrowColor #4A4A4A\r\n  ArrowFontColor #4A4A4A\r\n  BackgroundColor #FFFFFF\r\n  BorderColor #DEDEDE\r\n  FontColor #333333\r\n  Participant {\r\n    BorderColor #0077B6\r\n    BackgroundColor #F0F8FF\r\n    FontColor #005691\r\n  }\r\n  Actor {\r\n    BorderColor #6A057F\r\n    BackgroundColor #F5EEF8\r\n    FontColor #510363\r\n  }\r\n  Sequence {\r\n    ArrowThickness 2\r\n    LifeLineBorderColor #444444\r\n    LifeLineBackgroundColor #F7F7F7\r\n    BoxBorderColor #AAAAAA\r\n    BoxBackgroundColor #FFFFFF\r\n    BoxFontColor #333333\r\n  }\r\n}\r\n\r\nactor \"Customer\" as USR\r\nparticipant \"Order Service\" as OS\r\nparticipant \"Payment Gateway\" as PG\r\ndatabase \"Order DB\" as DB\r\n\r\nactivate USR\r\nUSR -&gt; OS : submitOrder(items)\r\nactivate OS\r\nalt Validation &amp; Payment\r\n  OS -&gt; OS : validateCart(items)\r\n  OS -&gt; PG : charge(total)\r\n  activate PG\r\n  PG --&gt; OS : paymentOk\r\n  deactivate PG\r\n  OS -&gt; DB : saveOrder(status=confirmed)\r\n  activate DB\r\n  DB --&gt; OS : orderId\r\n  deactivate DB\r\n  OS --&gt; USR : orderConfirmation(orderId)\r\nelse Insufficient Stock\r\n  OS -&gt; DB : checkStock(items)\r\n  activate DB\r\n  DB --&gt; OS : stockUnavailable\r\n  deactivate DB\r\n  OS --&gt; USR : error(\"Out of stock\")\r\nelse Payment Failed\r\n  PG --&gt; OS : paymentFailed\r\n  OS --&gt; USR : error(\"Payment declined\")\r\nend\r\ndeactivate OS\r\n@enduml\r\n<\/code><\/pre>\n<p><strong>C\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh:<\/strong><\/p>\n<ul>\n<li><strong>L\u1eddi g\u1ecdi \u0111\u1ed3ng b\u1ed9:<\/strong> M\u0169i t\u00ean li\u1ec1n ( <code data-backticks=\"1\">-&gt;<\/code>).<\/li>\n<li><strong>Ph\u1ea3n h\u1ed3i:<\/strong> M\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n ( <code data-backticks=\"1\">--&gt;<\/code>).<\/li>\n<li><strong>Thanh k\u00edch ho\u1ea1t:<\/strong> Hi\u1ec3n th\u1ecb v\u00f2ng \u0111\u1eddi x\u1eed l\u00fd c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n<li><strong><code data-backticks=\"1\">alt<\/code> Ph\u00e2n \u0111o\u1ea1n k\u1ebft h\u1ee3p:<\/strong> Bao b\u1ecdc ba k\u1ecbch b\u1ea3n (Th\u00e0nh c\u00f4ng, Thi\u1ebfu h\u00e0ng, Thanh to\u00e1n th\u1ea5t b\u1ea1i), tr\u1ef1c ti\u1ebfp ph\u1ea3n \u00e1nh D\u00f2ng s\u1ef1 ki\u1ec7n t\u1eeb Giai \u0111o\u1ea1n 3.<\/li>\n<\/ul>\n<h3>4B. <a href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/diagrams\/Activity.html\">S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng<\/a> (G\u00f3c \u0111\u1ed9 quy tr\u00ecnh)<\/h3>\n<p id=\"OlDcrcu\"><img alt=\"Giao di\u1ec7n VPasCode hi\u1ec3n th\u1ecb Bi\u1ec3u \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng \u0110\u1eb7t h\u00e0ng v\u1edbi c\u00e1c l\u00e0n (swimlanes) cho Kh\u00e1ch h\u00e0ng, H\u1ec7 th\u1ed1ng v\u00e0 Kho h\u00e0ng.\" class=\"alignnone size-full wp-image-19641\" decoding=\"async\" height=\"874\" loading=\"lazy\" sizes=\"auto, (max-width: 1918px) 100vw, 1918px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1.png 1918w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1-300x137.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1-1024x467.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1-768x350.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a70415b23cc1-1536x700.png 1536w\" width=\"1918\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\n&lt;style&gt;\r\n  element { MaximumWidth 150 }\r\n  start   { Backgroundcolor #00695C }\r\n  stop    { Backgroundcolor #C2185B }\r\n  activity{ Backgroundcolor #81D4FA; MaximumWidth 150 }\r\n  diamond { Backgroundcolor #FFB74D; MaximumWidth 80 }\r\n  arrow   { LineColor #424242; Fontcolor #000000 }\r\n  swimlane{ Fontcolor #000000; FontSize 14 }\r\n&lt;\/style&gt;\r\ntitle S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng \u0110\u1eb7t h\u00e0ng\r\n\r\n|#F0F8FF|Kh\u00e1ch h\u00e0ng|\r\nstart\r\n:\u0110\u0103ng nh\u1eadp;\r\n:Duy\u1ec7t qua danh m\u1ee5c;\r\n:Th\u00eam m\u1ee5c v\u00e0o gi\u1ecf h\u00e0ng;\r\n\r\nif (S\u1eb5n s\u00e0ng thanh to\u00e1n?) then (c\u00f3)\r\n  :Ti\u1ebfn h\u00e0nh thanh to\u00e1n;\r\nelse (kh\u00f4ng)\r\n  :Quay l\u1ea1i duy\u1ec7t m\u1ee5c;\r\n  stop\r\nendif\r\n\r\n|#E8F5E9|H\u1ec7 th\u1ed1ng|\r\n:X\u00e1c th\u1ef1c gi\u1ecf h\u00e0ng;\r\n:X\u1eed l\u00fd thanh to\u00e1n;\r\n\r\nif (Thanh to\u00e1n \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t?) then (c\u00f3)\r\n  :T\u1ea1o \u0111\u01a1n h\u00e0ng (tr\u1ea1ng th\u00e1i=\u0111\u00e3 x\u00e1c nh\u1eadn);\r\nelse (kh\u00f4ng)\r\n  :Th\u00f4ng b\u00e1o thanh to\u00e1n th\u1ea5t b\u1ea1i;\r\nendif\r\n\r\n|#F5EEF8|Kho h\u00e0ng|\r\nif (Thanh to\u00e1n \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t?) then (c\u00f3)\r\n  :Ch\u1ecdn v\u00e0 \u0111\u00f3ng g\u00f3i m\u1ee5c h\u00e0ng;\r\n  :Giao h\u00e0ng;\r\n  :G\u1eedi s\u1ed1 theo d\u00f5i;\r\n  stop\r\nelse (kh\u00f4ng)\r\n  stop\r\nendif\r\n@enduml\r\n<\/code><\/pre>\n<p id=\"JVZgQMi\"><img alt=\"Bi\u1ec3u \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng \u0110\u1eb7t h\u00e0ng minh h\u1ecda lu\u1ed3ng quy tr\u00ecnh qua c\u00e1c l\u00e0n (swimlanes) c\u1ee7a Kh\u00e1ch h\u00e0ng, H\u1ec7 th\u1ed1ng v\u00e0 Kho h\u00e0ng.\" class=\"alignnone size-full wp-image-19642\" decoding=\"async\" height=\"917\" loading=\"lazy\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7041742d648.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7041742d648.png 843w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7041742d648-276x300.png 276w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a7041742d648-768x835.png 768w\" width=\"843\"\/><strong>Kh\u00e1i ni\u1ec7m ch\u00ednh:<\/strong><\/p>\n<ul>\n<li><strong><a href=\"https:\/\/guides.visual-paradigm.com\/a-guide-to-swimlane-activity-diagrams\/\">K\u00eanh b\u01a1i<\/a>:<\/strong> G\u00e1n m\u1ed7i h\u00e0nh \u0111\u1ed9ng cho b\u00ean ch\u1ecbu tr\u00e1ch nhi\u1ec7m (Kh\u00e1ch h\u00e0ng, H\u1ec7 th\u1ed1ng, Kho h\u00e0ng).<\/li>\n<li><strong>N\u00fat quy\u1ebft \u0111\u1ecbnh:<\/strong>\u00a0<code data-backticks=\"1\">if\/then\/else\/endif<\/code> c\u1ea5u tr\u00fac m\u00e3 h\u00f3a c\u00e1c k\u1ecbch b\u1ea3n ph\u00e2n nh\u00e1nh.<\/li>\n<li><strong>\u0110\u00e1nh d\u1ea5u b\u1eaft \u0111\u1ea7u\/k\u1ebft th\u00fac:<\/strong> X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi \u0111\u1ea7u v\u00e0 cu\u1ed1i c\u1ee7a quy tr\u00ecnh.<\/li>\n<\/ul>\n<hr\/>\n<h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh v\u1ec1 PlantUML<\/h2>\n<p>\u0110\u1ec3 m\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y b\u1eb1ng PlantUML, h\u00e3y nh\u1edb c\u00e1c nguy\u00ean t\u1eafc c\u00fa ph\u00e1p sau:<\/p>\n<ol>\n<li><strong><a href=\"https:\/\/www.visual-paradigm.com\/solution\/free-use-case-tool\/\">S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>:<\/strong>\n<ul>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">usecase<\/code> cho c\u00e1c ch\u1ee9c n\u0103ng.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">...&gt;<\/code> cho <code data-backticks=\"1\">&lt;&lt;include&gt;&gt;<\/code> c\u00e1c m\u1ed1i quan h\u1ec7.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">&lt;...<\/code> cho <code data-backticks=\"1\">&lt;&lt;m\u1edf r\u1ed9ng&gt;&gt;<\/code> c\u00e1c m\u1ed1i quan h\u1ec7.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">h\u00ecnh ch\u1eef nh\u1eadt \"T\u00ean h\u1ec7 th\u1ed1ng\" {}<\/code> \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Bi\u1ec3u \u0111\u1ed3 tr\u00ecnh t\u1ef1:<\/strong>\n<ul>\n<li>X\u00e1c \u0111\u1ecbnh ng\u01b0\u1eddi tham gia b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <code data-backticks=\"1\">actor<\/code>,\u00a0<code data-backticks=\"1\">participant<\/code>, ho\u1eb7c <code data-backticks=\"1\">database<\/code>.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">-&gt;<\/code> cho c\u00e1c l\u1eddi g\u1ecdi \u0111\u1ed3ng b\u1ed9 v\u00e0 <code data-backticks=\"1\">--&gt;<\/code> cho c\u00e1c ph\u1ea3n h\u1ed3i.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">activate<\/code> v\u00e0 <code data-backticks=\"1\">deactivate<\/code> \u0111\u1ec3 hi\u1ec3n th\u1ecb v\u00f2ng \u0111\u1eddi \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">alt<\/code>,\u00a0<code data-backticks=\"1\">else<\/code>, v\u00e0 <code data-backticks=\"1\">k\u1ebft th\u00fac<\/code> cho c\u00e1c \u0111o\u1ea1n k\u1ebft h\u1ee3p bi\u1ec3u di\u1ec5n c\u00e1c lu\u1ed3ng thay th\u1ebf.<\/li>\n<\/ul>\n<\/li>\n<li><strong>S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng:<\/strong>\n<ul>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">|#color|LaneName|<\/code> \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u00e0n.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">:action;<\/code> cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">if\/else\/endif<\/code> cho c\u00e1c n\u00fat quy\u1ebft \u0111\u1ecbnh.<\/li>\n<li>S\u1eed d\u1ee5ng <code data-backticks=\"1\">start<\/code> v\u00e0 <code data-backticks=\"1\">stop<\/code> \u0111\u1ec3 \u0111\u00e1nh d\u1ea5u ranh gi\u1edbi quy tr\u00ecnh.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr\/>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p <a href=\"https:\/\/blog.visual-paradigm.com\/use-case-diagram-tutorial\/\">l\u1ea5y tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0m trung t\u00e2m<\/a> kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt t\u00e0i li\u1ec7u; \u0111\u00f3 l\u00e0 m\u1ed9t khung cho s\u1ef1 tinh ti\u1ebfn d\u1ea7n d\u1ea7n. B\u1eb1ng c\u00e1ch b\u1eaft \u0111\u1ea7u v\u1edbi b\u1ee9c tranh t\u1ed5ng th\u1ec3 (<a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2575_usecasediagr.html\">S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>) v\u00e0 \u0111i s\u00e2u v\u00e0o c\u00e1c h\u00e0nh vi c\u1ee5 th\u1ec3 (Lu\u1ed3ng s\u1ef1 ki\u1ec7n) v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c k\u1ef9 thu\u1eadt (<a href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/diagrams\/Sequence.html\">S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/a>\/<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/activity-diagram-tutorial\/\">S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng<\/a>), c\u00e1c nh\u00f3m c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi d\u00f2ng m\u00e3 \u0111\u1ec1u c\u00f3 th\u1ec3 truy ng\u01b0\u1ee3c l\u1ea1i m\u1ed9t nhu c\u1ea7u ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh.<\/p>\n<p class=\"\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u1ea3m thi\u1ec3u r\u1ee7i ro hi\u1ec3u l\u1ea7m gi\u1eefa c\u00e1c b\u00ean li\u00ean quan v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c ki\u1ec3m tra d\u1ec5 d\u00e0ng h\u01a1n th\u00f4ng qua c\u00e1c k\u1ecbch b\u1ea3n r\u00f5 r\u00e0ng, v\u00e0 d\u1eabn \u0111\u1ebfn thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng m\u1ea1nh m\u1ebd, l\u1ea5y ng\u01b0\u1eddi d\u00f9ng l\u00e0m trung t\u00e2m. D\u00f9 b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed \u0111\u01a1n gi\u1ea3n hay m\u1ed9t h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p ph\u1ee9c t\u1ea1p, vi\u1ec7c tu\u00e2n th\u1ee7 qu\u00e1 tr\u00ecnh c\u00f3 c\u1ea5u tr\u00fac n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u r\u00f5 r\u00e0ng h\u01a1n v\u00e0 ph\u1ea7n m\u1ec1m ch\u1ea5t l\u01b0\u1ee3ng cao h\u01a1n.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u Trong k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m, vi\u1ec7c thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa nhu c\u1ea7u c\u1ee7a c\u00e1c b\u00ean li\u00ean quan<\/p>\n","protected":false},"author":11,"featured_media":12224,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[80,3],"tags":[],"class_list":["post-12223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-chatbot","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - 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