{"id":12118,"date":"2026-05-19T14:24:52","date_gmt":"2026-05-19T06:24:52","guid":{"rendered":"https:\/\/www.cybermedian.com\/vn\/comprehensive-guide-to-uml-diagrams-2\/"},"modified":"2026-05-19T14:24:52","modified_gmt":"2026-05-19T06:24:52","slug":"comprehensive-guide-to-uml-diagrams-2","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/vn\/comprehensive-guide-to-uml-diagrams-2\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c s\u01a1 \u0111\u1ed3 UML"},"content":{"rendered":"<h2><strong><span>Gi\u1edbi thi\u1ec7u<\/span><\/strong><\/h2>\n<div><span>Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML) \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n ng\u1ea7m \u0111\u1ecbnh \u0111\u1ec3 tr\u1ef1c quan h\u00f3a, x\u00e1c \u0111\u1ecbnh v\u00e0 t\u00e0i li\u1ec7u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m tr\u00ean nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p. \u1ede c\u1ed1t l\u00f5i, UML kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t tri\u1ec3n c\u1ee9ng nh\u1eafc, m\u00e0 l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef tr\u1ef1c quan linh ho\u1ea1t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 tri\u1ec3n khai c\u1ee5 th\u1ec3. UML 2.0 h\u00f3a chu\u1ea9n h\u00f3a m\u1ee5c \u0111\u00edch n\u00e0y b\u1eb1ng c\u00e1ch t\u1ed5 ch\u1ee9c c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 th\u00e0nh hai nh\u00f3m b\u1ed5 tr\u1ee3: <\/span><strong><span>s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac<\/span><\/strong><span>, nh\u1eb1m ghi l\u1ea1i ki\u1ebfn tr\u00fac t\u0129nh v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 v\u1eadt l\u00fd c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng, v\u00e0 <\/span><strong><span>s\u01a1 \u0111\u1ed3 h\u00e0nh vi<\/span><\/strong><span>, nh\u1eb1m m\u00f4 h\u00ecnh h\u00f3a c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u00e1c, thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i v\u00e0 th\u1ef1c thi logic theo th\u1eddi gian. D\u1ef1a tr\u00ean c\u00e1c nguy\u00ean t\u1eafc n\u1ec1n t\u1ea3ng \u0111\u01b0\u1ee3c n\u00eau trong <\/span><em><span>UML 2.0 trong m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan<\/span><\/em><span> (O\u2019Reilly), h\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 m\u1ecdi lo\u1ea1i s\u01a1 \u0111\u1ed3 UML ch\u00ednh, c\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i, quy t\u1eafc k\u00fd hi\u1ec7u v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf. D\u00f9 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c ki\u1ebfn tr\u00fac tri\u1ec3n khai hay m\u00f4 h\u00ecnh h\u00f3a c\u00e1c quy tr\u00ecnh nghi\u1ec7p v\u1ee5 ph\u1ee9c t\u1ea1p, vi\u1ec7c hi\u1ec3u r\u00f5 khi n\u00e0o v\u00e0 c\u00e1ch \u00e1p d\u1ee5ng t\u1eebng s\u01a1 \u0111\u1ed3 s\u1ebd gi\u00fap b\u1ea1n truy\u1ec1n \u0111\u1ea1t c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u00e0 mang t\u00ednh chung m\u1ee5c \u0111\u00edch.<\/span><\/div>\n<hr\/>\n<h2>T\u1ed5ng quan<\/h2>\n<p>UML 2.0 ph\u00e2n lo\u1ea1i c\u00e1c s\u01a1 \u0111\u1ed3 th\u00e0nh\u00a0<strong>hai nh\u00f3m ch\u00ednh<\/strong>:<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i<\/th>\n<th>M\u1ee5c \u0111\u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>S\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac<\/strong><\/td>\n<td>Ghi l\u1ea1i t\u1ed5 ch\u1ee9c v\u1eadt l\u00fd c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n\u2014c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng li\u00ean h\u1ec7 v\u1edbi nhau<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u01a1 \u0111\u1ed3 h\u00e0nh vi<\/strong><\/td>\n<td>T\u1eadp trung v\u00e0o c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u00e1c, thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i v\u00e0 x\u1eed l\u00fd h\u00e0nh vi theo th\u1eddi gian<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p>\ud83d\udca1\u00a0<strong>Nguy\u00ean t\u1eafc ch\u00ednh<\/strong>: M\u1ed9t m\u00f4 h\u00ecnh UML bao g\u1ed3m m\u1ed9t ho\u1eb7c nhi\u1ec1u s\u01a1 \u0111\u1ed3. M\u1ed7i s\u01a1 \u0111\u1ed3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t\u00a0<em>g\u00f3c nh\u00ecn<\/em>\u00a0ho\u1eb7c\u00a0<em>l\u1ee3i \u00edch<\/em>\u00a0trong h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a. C\u00e1c th\u00e0nh ph\u1ea7n ri\u00eang l\u1ebb th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean nhi\u1ec1u s\u01a1 \u0111\u1ed3 kh\u00e1c nhau.<\/p>\n<\/blockquote>\n<hr\/>\n<h2>\ud83d\udd37 S\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac<\/h2>\n<p>C\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac m\u00f4 h\u00ecnh h\u00f3a ki\u1ebfn tr\u00fac t\u0129nh c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea1n\u2014\u0111i\u1ec1u g\u00ec ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1ch th\u1ee9c.<\/p>\n<h3>1. S\u01a1 \u0111\u1ed3 l\u1edbp<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: C\u00e1c l\u1edbp m\u00f4 h\u00ecnh, giao di\u1ec7n v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 t\u0129nh c\u1ee7a ch\u00fang.<\/p>\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c l\u1edbp v\u1edbi thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c<\/p>\n<\/li>\n<li>\n<p>Giao di\u1ec7n v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 th\u1ef1c hi\u1ec7n<\/p>\n<\/li>\n<li>\n<p>C\u00e1c m\u1ed1i quan h\u1ec7 li\u00ean k\u1ebft, t\u1ed5ng h\u1ee3p, k\u1ebft h\u1ee3p v\u00e0 kh\u00e1i qu\u00e1t h\u00f3a<\/p>\n<\/li>\n<li>\n<p>C\u00e1c b\u1ed9 ch\u1ecdn t\u00ednh kh\u1ea3 ki\u1ebfn (<code data-backticks=\"1\">+<\/code>,\u00a0<code data-backticks=\"1\">-<\/code>,\u00a0<code data-backticks=\"1\">#<\/code>,\u00a0<code data-backticks=\"1\">~<\/code>)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c th\u00f4ng s\u1ed1 b\u1ed9i s\u1ed1 (<code data-backticks=\"1\">1<\/code>,\u00a0<code data-backticks=\"1\">0..*<\/code>,\u00a0<code data-backticks=\"1\">1..5<\/code>)<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<h2>C\u00e1c ki\u1ec3u d\u00e1ng v\u00e0 lo\u1ea1i l\u1edbp<\/h2>\n<p>S\u01a1 \u0111\u1ed3 s\u1eed d\u1ee5ng c\u00e1c ki\u1ec3u d\u00e1ng (\u0111\u01b0\u1ee3c ch\u1ec9 ra b\u1eb1ng v\u0103n b\u1ea3n b\u00ean trong c\u00e1c d\u1ea5u ngo\u1eb7c ch\u00e9o, nh\u01b0\u00a0<code data-backticks=\"1\">&lt;&lt;entity&gt;&gt;<\/code>) \u0111\u1ec3 ph\u00e2n lo\u1ea1i vai tr\u00f2 c\u1ee7a m\u1ed7i l\u1edbp:<\/p>\n<ul>\n<li>\n<p><strong>L\u1edbp ranh gi\u1edbi (<code data-backticks=\"1\">&lt;&lt;ranh gi\u1edbi&gt;&gt;<\/code>):<\/strong>\u00a0Ch\u00fang x\u1eed l\u00fd t\u01b0\u01a1ng t\u00e1c gi\u1eefa h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c t\u00e1c nh\u00e2n c\u1ee7a n\u00f3 (ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i).<\/p>\n<\/li>\n<li>\n<p><em>V\u00ed d\u1ee5:<\/em>\u00a0<code data-backticks=\"1\">C\u1eeda s\u1ed5B\u1ea3ng\u0110i\u1ec1uKhi\u1ec3n<\/code>\u00a0v\u00e0\u00a0<code data-backticks=\"1\">H\u1ed9pTho\u1ea1i<\/code>.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1edbp \u0111i\u1ec1u khi\u1ec3n (<code data-backticks=\"1\">&lt;&lt;\u0111i\u1ec1u khi\u1ec3n&gt;&gt;<\/code>):<\/strong>\u00a0Ch\u00fang qu\u1ea3n l\u00fd s\u1ef1 ph\u1ed1i h\u1ee3p, giao d\u1ecbch v\u00e0 lu\u1ed3ng logic kinh doanh c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n<\/li>\n<li>\n<p><em>V\u00ed d\u1ee5:<\/em>\u00a0<code data-backticks=\"1\">B\u1ed1i c\u1ea3nhV\u1ebd<\/code>\u00a0v\u00e0\u00a0<code data-backticks=\"1\">B\u1ed9\u0110i\u1ec1uKhi\u1ec3nD\u1eefLi\u1ec7u<\/code>.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1edbp th\u1ef1c th\u1ec3 (<code data-backticks=\"1\">&lt;&lt;th\u1ef1c th\u1ec3&gt;&gt;<\/code>):<\/strong>\u00a0Ch\u00fang \u0111\u1ea1i di\u1ec7n cho d\u1eef li\u1ec7u c\u1ed1t l\u00f5i ho\u1eb7c th\u00f4ng tin b\u1ec1n v\u1eefng m\u00e0 h\u1ec7 th\u1ed1ng theo d\u00f5i.<\/p>\n<\/li>\n<li>\n<p><em>V\u00ed d\u1ee5:<\/em>\u00a0<code data-backticks=\"1\">Khung<\/code>,\u00a0<code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>,\u00a0<code data-backticks=\"1\">S\u1ef1 ki\u1ec7n<\/code>,\u00a0<code data-backticks=\"1\">H\u00ecnh d\u1ea1ng<\/code>,\u00a0<code data-backticks=\"1\">H\u00ecnh tr\u00f2n<\/code>,\u00a0<code data-backticks=\"1\">H\u00ecnh ch\u1eef nh\u1eadt<\/code>,\u00a0<code data-backticks=\"1\">\u0110a gi\u00e1c<\/code>, v\u00e0\u00a0<code data-backticks=\"1\">\u0110i\u1ec3m<\/code>.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1edbp tr\u1eebu t\u01b0\u1ee3ng:<\/strong>\u00a0L\u1edbp\u00a0<code data-backticks=\"1\">H\u00ecnh d\u1ea1ng<\/code>\u00a0l\u1edbp \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kh\u00e1i ni\u1ec7m tr\u1eebu t\u01b0\u1ee3ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd c\u01a1 s\u1edf cho c\u00e1c h\u00ecnh d\u1ea1ng c\u1ee5 th\u1ec3 v\u00e0 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o tr\u1ef1c ti\u1ebfp.<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>C\u1ea5u t\u1ea1o c\u1ee7a m\u1ed9t l\u1edbp<\/h2>\n<p>M\u1ed9t h\u1ed9p l\u1edbp UML ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c ng\u0103n. Nh\u00ecn v\u00e0o l\u1edbp\u00a0<strong><code data-backticks=\"1\">H\u00ecnh tr\u00f2n<\/code><\/strong>\u00a0l\u1edbp nh\u01b0 m\u1ed9t v\u00ed d\u1ee5:<\/p>\n<ul>\n<li>\n<p><strong>T\u00ean l\u1edbp:<\/strong>\u00a0N\u1eb1m \u1edf ng\u0103n tr\u00ean (<code data-backticks=\"1\">H\u00ecnh tr\u00f2n<\/code>).<\/p>\n<\/li>\n<li>\n<p><strong>Thu\u1ed9c t\u00ednh:<\/strong>\u00a0N\u1eb1m \u1edf ng\u0103n gi\u1eefa, \u0111\u1ea1i di\u1ec7n cho c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">-b\u00e1n k\u00ednh : float<\/code>\u00a0(D\u1ea5u tr\u1eeb\u00a0<code data-backticks=\"1\">-<\/code>\u00a0ch\u1ec9 ra m\u1ed9t thu\u1ed9c t\u00ednh ri\u00eang t\u01b0).<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">-t\u00e2m : unsigned int<\/code><\/p>\n<\/li>\n<li>\n<p><strong>Thao t\u00e1c (Ph\u01b0\u01a1ng th\u1ee9c):<\/strong>\u00a0N\u1eb1m \u1edf ng\u0103n d\u01b0\u1edbi, \u0111\u1ea1i di\u1ec7n cho c\u00e1c h\u00e0nh vi ho\u1eb7c h\u00e0m.<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">+area(b\u00e1n k\u00ednh : float) : double<\/code>\u00a0(D\u1ea5u c\u1ed9ng\u00a0<code data-backticks=\"1\">+<\/code>\u00a0ch\u1ec9 ra m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c c\u00f4ng khai).<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">+chuVi()<\/code>,\u00a0<code data-backticks=\"1\">+thietLapTam()<\/code>, v\u00e0\u00a0<code data-backticks=\"1\">+thietLapBanKinh()<\/code>.<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>M\u1ed1i quan h\u1ec7 v\u00e0 li\u00ean k\u1ebft<\/h2>\n<p>C\u00e1c \u0111\u01b0\u1eddng v\u00e0 m\u0169i t\u00ean k\u1ebft n\u1ed1i c\u00e1c l\u1edbp x\u00e1c \u0111\u1ecbnh c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u00e0 ph\u1ee5 thu\u1ed9c l\u1eabn nhau:<\/p>\n<h3>T\u1ed5ng qu\u00e1t h\u00f3a (K\u1ebf th\u1eeba)<\/h3>\n<p>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi m\u1ed9t\u00a0<strong>\u0111\u1ea7u m\u0169i t\u00ean r\u1ed7ng<\/strong>\u00a0ch\u1ec9 v\u1ec1 ph\u00eda l\u1edbp cha. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i quan h\u1ec7 \u201cl\u00e0 m\u1ed9t\u201d trong \u0111\u00f3 l\u1edbp con k\u1ebf th\u1eeba thu\u1ed9c t\u00ednh v\u00e0 h\u00e0nh vi t\u1eeb l\u1edbp cha.<\/p>\n<ul>\n<li>\n<p><code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>\u00a0k\u1ebf th\u1eeba t\u1eeb\u00a0<code data-backticks=\"1\">Khung<\/code>.<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">C\u1eeda s\u1ed5 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/code>\u00a0v\u00e0\u00a0<code data-backticks=\"1\">H\u1ed9p tho\u1ea1i<\/code>\u00a0k\u1ebf th\u1eeba t\u1eeb\u00a0<code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>.<\/p>\n<\/li>\n<li>\n<p><code data-backticks=\"1\">H\u00ecnh tr\u00f2n<\/code>,\u00a0<code data-backticks=\"1\">H\u00ecnh ch\u1eef nh\u1eadt<\/code>, v\u00e0\u00a0<code data-backticks=\"1\">\u0110a gi\u00e1c<\/code>\u00a0k\u1ebf th\u1eeba t\u1eeb l\u1edbp tr\u1eebu t\u01b0\u1ee3ng\u00a0<code data-backticks=\"1\">H\u00ecnh d\u1ea1ng<\/code>\u00a0(V\u00ed d\u1ee5: m\u1ed9t H\u00ecnh tr\u00f2n\u00a0<em>l\u00e0 m\u1ed9t<\/em>\u00a0H\u00ecnh d\u1ea1ng).<\/p>\n<\/li>\n<\/ul>\n<h3>T\u1ed5 h\u1ee3p<\/h3>\n<p>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi m\u1ed9t\u00a0<strong>h\u00ecnh kim c\u01b0\u01a1ng r\u1ed7ng<\/strong>\u00a0\u1edf \u0111\u1ea7u ch\u1ee9a. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i quan h\u1ec7 \u201cc\u00f3-m\u1ed9t\u201d l\u1ecfng l\u1ebbo ho\u1eb7c m\u1ed1i quan h\u1ec7 to\u00e0n th\u1ec3-ph\u1ea7n, n\u01a1i ph\u1ea7n con c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u1edbi ph\u1ea7n cha.<\/p>\n<ul>\n<li>\n<p><code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>\u00a0t\u1ed5 h\u1ee3p\u00a0<code data-backticks=\"1\">H\u00ecnh d\u1ea1ng<\/code>\u00a0(s\u1ed1 l\u01b0\u1ee3ng\u00a0<code data-backticks=\"1\">1<\/code>\u00a0\u0111\u1ebfn\u00a0<code data-backticks=\"1\">*<\/code>). M\u1ed9t\u00a0<code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>\u00a0c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u h\u01a1n m\u1ed9t (<code data-backticks=\"1\">*<\/code>) h\u00ecnh d\u1ea1ng, nh\u01b0ng n\u1ebfu c\u1eeda s\u1ed5 b\u1ecb \u0111\u00f3ng l\u1ea1i, c\u00e1c h\u00ecnh d\u1ea1ng v\u1eabn c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u1ec1 m\u1eb7t kh\u00e1i ni\u1ec7m trong b\u1ed9 nh\u1edb ho\u1eb7c b\u1ed1i c\u1ea3nh kh\u00e1c.<\/p>\n<\/li>\n<\/ul>\n<h3>Th\u00e0nh ph\u1ea7n<\/h3>\n<p>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi m\u1ed9t\u00a0<strong>h\u00ecnh kim c\u01b0\u01a1ng \u0111\u1ea7y (\u0111en)<\/strong>\u00a0\u1edf \u0111\u1ea7u ch\u1ee9a. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i quan h\u1ec7 \u201cc\u00f3-m\u1ed9t\u201d m\u1ea1nh m\u1ebd v\u1edbi th\u1eddi gian s\u1ed1ng \u0111\u1ed3ng b\u1ed9 \u2013 n\u1ebfu container b\u1ecb ph\u00e1 h\u1ee7y, c\u00e1c ph\u1ea7n c\u0169ng s\u1ebd b\u1ecb ph\u00e1 h\u1ee7y theo.<\/p>\n<ul>\n<li>\n<p><code data-backticks=\"1\">H\u00ecnh tr\u00f2n<\/code>\u00a0\u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb\u00a0<code data-backticks=\"1\">\u0110i\u1ec3m<\/code>\u00a0\u0111\u1ed1i t\u01b0\u1ee3ng (s\u1ed1 l\u01b0\u1ee3ng\u00a0<code data-backticks=\"1\">1<\/code>\u00a0v\u1edbi\u00a0<code data-backticks=\"1\">*<\/code>). M\u1ed9t h\u00ecnh tr\u00f2n kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 t\u00e2m ho\u1eb7c c\u00e1c \u0111i\u1ec3m bi\u00ean; vi\u1ec7c ph\u00e1 h\u1ee7y h\u00ecnh tr\u00f2n s\u1ebd l\u00e0m m\u1ea5t c\u00e1c tham chi\u1ebfu \u0111i\u1ec3m c\u1ee5 th\u1ec3 n\u00e0y.<\/p>\n<\/li>\n<\/ul>\n<h3>S\u1ef1 ph\u1ee5 thu\u1ed9c<\/h3>\n<p>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t\u00a0<strong>m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n<\/strong>. N\u00f3 cho th\u1ea5y r\u1eb1ng m\u1ed9t l\u1edbp ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp kh\u00e1c, ngh\u0129a l\u00e0 m\u1ed9t thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi l\u1edbp m\u1ee5c ti\u00eau c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp ngu\u1ed3n.<\/p>\n<ul>\n<li>\n<p><code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>\u00a0c\u00f3 s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o\u00a0<code data-backticks=\"1\">S\u1ef1 ki\u1ec7n<\/code>\u00a0(\u0111\u01b0\u1ee3c ch\u1ec9 ra b\u1edfi m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n h\u01b0\u1edbng t\u1edbi\u00a0<code data-backticks=\"1\">S\u1ef1 ki\u1ec7n<\/code>). C\u1eeda s\u1ed5 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0\u00a0<code data-backticks=\"1\">handleEvent()<\/code>.<\/p>\n<\/li>\n<\/ul>\n<h3>S\u1ef1 li\u00ean k\u1ebft<\/h3>\n<p>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n \u0111\u01a1n gi\u1ea3n. N\u00f3 cho th\u1ea5y m\u1ed1i quan h\u1ec7 c\u1ea5u tr\u00fac n\u01a1i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a m\u1ed9t l\u1edbp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a l\u1edbp kh\u00e1c.<\/p>\n<ul>\n<li>\n<p><code data-backticks=\"1\">H\u1ed9p tho\u1ea1i<\/code>\u00a0\u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi\u00a0<code data-backticks=\"1\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n d\u1eef li\u1ec7u<\/code>, ngh\u0129a l\u00e0 ch\u00fang giao ti\u1ebfp v\u1edbi nhau \u0111\u1ec3 trao \u0111\u1ed5i th\u00f4ng tin ho\u1eb7c ph\u1ed1i h\u1ee3p h\u00e0nh vi.<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>C\u00e1c th\u00e0nh ph\u1ea7n t\u00e0i li\u1ec7u<\/h2>\n<ul>\n<li>\n<p class=\"\"><strong>Ghi ch\u00fa:<\/strong>\u00a0S\u01a1 \u0111\u1ed3 c\u00f3 m\u1ed9t h\u1ed9p ghi ch\u00fa v\u1edbi g\u00f3c g\u1ea5p \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi l\u1edbp\u00a0<code data-backticks=\"1\">C\u1eeda s\u1ed5<\/code>\u00a0l\u1edbp. N\u00f3 cung c\u1ea5p ng\u1eef c\u1ea3nh d\u1ec5 \u0111\u1ecdc cho con ng\u01b0\u1eddi:\u00a0<em>\u201cC\u1eeda s\u1ed5 ch\u00ednh c\u1ee7a \u1ee9ng d\u1ee5ng.\u201d<\/em><\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"What is Class Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/12-uml-class-diagram-example.png\"\/><\/p>\n<ul>\n<li>\n<p>Thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng<\/p>\n<\/li>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c m\u00f4 h\u00ecnh mi\u1ec1n<\/p>\n<\/li>\n<li>\n<p>T\u1ea1o khung m\u00e3 ngu\u1ed3n<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>2. S\u01a1 \u0111\u1ed3 th\u00e0nh ph\u1ea7n<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Hi\u1ec3n th\u1ecb t\u1ed5 ch\u1ee9c v\u00e0 m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c c\u1ee7a c\u00e1c \u0111\u01a1n v\u1ecb tri\u1ec3n khai.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>Th\u00e0nh ph\u1ea7n (\u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1eb1ng ki\u1ec3u\u00a0<code data-backticks=\"1\">\u00abcomponent\u00bb<\/code>)<\/p>\n<\/li>\n<li>\n<p>Giao di\u1ec7n cung c\u1ea5p\/y\u00eau c\u1ea7u (k\u00fd hi\u1ec7u b\u00f3ng v\u00e0 \u1ed5 c\u1eafm)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c k\u1ebft n\u1ed1i l\u1eafp r\u00e1p v\u00e0 m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c<\/p>\n<\/li>\n<li>\n<p>Ngh\u1ec1 nghi\u1ec7p (\u0111\u1ea7u ra \u0111\u00e3 bi\u00ean d\u1ecbch: JAR, DLL, t\u1eadp th\u1ef1c thi)<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<h2 data-path-to-node=\"1\">Th\u00e0nh ph\u1ea7n v\u00e0 ranh gi\u1edbi m\u00f4-\u0111un<\/h2>\n<p data-path-to-node=\"2\">\u1ede trung t\u00e2m c\u1ee7a s\u01a1 \u0111\u1ed3 l\u00e0 kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t th\u00e0nh ph\u1ea7n, m\u1ed9t \u0111\u01a1n v\u1ecb \u0111\u1ed9c l\u1eadp v\u00e0 m\u00f4-\u0111un c\u1ee7a h\u1ec7 th\u1ed1ng, bao b\u1ecdc n\u1ed9i dung c\u1ee7a n\u00f3 v\u00e0 th\u1ec3 hi\u1ec7n h\u00e0nh vi th\u00f4ng qua c\u00e1c giao di\u1ec7n r\u00f5 r\u00e0ng. Bi\u00ean gi\u1edbi l\u1edbn b\u00ean ngo\u00e0i \u0111\u1ea1i di\u1ec7n cho th\u00e0nh ph\u1ea7n <b data-index-in-node=\"237\" data-path-to-node=\"2\">Terminal<\/b> th\u00e0nh ph\u1ea7n, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t h\u1ec7 con ho\u1eb7c h\u1ed9p ch\u1ee9a. B\u00ean trong h\u1ed9p ch\u1ee9a n\u00e0y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 nh\u1ecf h\u01a1n, chuy\u00ean bi\u1ec7t\u2014ch\u1eb3ng h\u1ea1n nh\u01b0<b data-index-in-node=\"374\" data-path-to-node=\"2\">SafetyInspection<\/b>, <b data-index-in-node=\"392\" data-path-to-node=\"2\">Staff<\/b>, <b data-index-in-node=\"399\" data-path-to-node=\"2\">Defect<\/b>, v\u00e0 <b data-index-in-node=\"411\" data-path-to-node=\"2\">Map<\/b>. M\u1ed7i \u0111\u01a1n v\u1ecb n\u1ed9i b\u1ed9 n\u00e0y \u0111\u1ea1i di\u1ec7n cho m\u1ed9t ph\u1ea7n m\u1ec1m m\u00f4-\u0111un ho\u1eb7c logic qu\u1ea3n l\u00fd d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c tr\u00e1ch nhi\u1ec7m c\u1ee7a Terminal.<\/p>\n<h2 data-path-to-node=\"3\">Giao di\u1ec7n nh\u01b0 h\u1ee3p \u0111\u1ed3ng<\/h2>\n<p data-path-to-node=\"4\">C\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng c\u00f4ng khai logic n\u1ed9i b\u1ed9 c\u1ee7a ch\u00fang tr\u1ef1c ti\u1ebfp; thay v\u00e0o \u0111\u00f3, ch\u00fang t\u01b0\u01a1ng t\u00e1c th\u00f4ng qua c\u00e1c giao di\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 c\u00e1c h\u1ee3p \u0111\u1ed3ng ki\u1ebfn tr\u00fac.<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"5,0,0\">C\u00e1c giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p:<\/b>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng &#8220;k\u1eb9o m\u00fat&#8221; ho\u1eb7c h\u00ecnh tr\u00f2n, nh\u1eefng giao di\u1ec7n n\u00e0y cho th\u1ea5y c\u00e1c d\u1ecbch v\u1ee5, d\u1eef li\u1ec7u ho\u1eb7c thao t\u00e1c m\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n tri\u1ec3n khai v\u00e0 cung c\u1ea5p cho m\u00f4i tr\u01b0\u1eddng xung quanh. V\u00ed d\u1ee5, th\u00e0nh ph\u1ea7n Terminal b\u00ean ngo\u00e0i ph\u01a1i b\u00e0y c\u00e1c giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p b\u00ean ngo\u00e0i nh\u01b0 <b data-index-in-node=\"259\" data-path-to-node=\"5,0,0\">Tr\u1ea1ng th\u00e1i<\/b>, <b data-index-in-node=\"266\" data-path-to-node=\"5,0,0\">Chi ti\u1ebft<\/b>, v\u00e0 <b data-index-in-node=\"279\" data-path-to-node=\"5,0,0\">M\u1ee5c ki\u1ec3m tra<\/b>, cho th\u1ea5y nh\u1eefng g\u00ec kh\u00e1ch h\u00e0ng b\u00ean ngo\u00e0i c\u00f3 th\u1ec3 y\u00eau c\u1ea7u t\u1eeb n\u00f3.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"5,1,0\">C\u00e1c giao di\u1ec7n c\u1ea7n thi\u1ebft:<\/b>\u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng &#8220;\u1ed5 c\u1eafm&#8221; ho\u1eb7c h\u00ecnh b\u00e1n nguy\u1ec7t, nh\u1eefng giao di\u1ec7n n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ecbch v\u1ee5 ho\u1eb7c d\u1eef li\u1ec7u m\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ea7n t\u1eeb m\u1ed9t th\u1ef1c th\u1ec3 kh\u00e1c \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch. \u1ede ph\u00eda b\u00ean ph\u1ea3i s\u01a1 \u0111\u1ed3, th\u00e0nh ph\u1ea7n Terminal ph\u01a1i b\u00e0y r\u00f5 r\u00e0ng c\u00e1c giao di\u1ec7n c\u1ea7n thi\u1ebft cho <b data-index-in-node=\"270\" data-path-to-node=\"5,1,0\">T\u00e0i kho\u1ea3n<\/b> v\u00e0 <b data-index-in-node=\"282\" data-path-to-node=\"5,1,0\">ID Ki\u1ec3m tra<\/b>, cho th\u1ea5y s\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a n\u00f3 v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"6\">C\u00e1c c\u1ed5ng v\u00e0 d\u00e2y n\u1ed1i n\u1ed9i b\u1ed9<\/h2>\n<p data-path-to-node=\"7\">\u0110\u1ec3 qu\u1ea3n l\u00fd lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 \u0111i\u1ec1u khi\u1ec3n trong khi duy tr\u00ec t\u00ednh \u0111\u00f3ng g\u00f3i, h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng c\u00e1c c\u1ed5ng v\u00e0 m\u1ed1i quan h\u1ec7 \u1ee7y quy\u1ec1n.<\/p>\n<ul data-path-to-node=\"8\">\n<li>\n<p data-path-to-node=\"8,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"8,0,0\">C\u1ed5ng:<\/b> Nh\u1eefng h\u00ecnh vu\u00f4ng nh\u1ecf n\u1eb1m tr\u00ean bi\u00ean c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ea1i di\u1ec7n cho c\u00e1c c\u1ed5ng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c ri\u00eang bi\u1ec7t, th\u00f4ng qua \u0111\u00f3 c\u1ea5u tr\u00fac n\u1ed9i b\u1ed9 c\u1ee7a th\u00e0nh ph\u1ea7n k\u1ebft n\u1ed1i v\u1edbi th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i. C\u00e1c c\u1ed5ng cho ph\u00e9p m\u1ed9t th\u00e0nh ph\u1ea7n t\u00e1ch bi\u1ec7t d\u00e2y n\u1ed1i n\u1ed9i b\u1ed9 kh\u1ecfi m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i, ngh\u0129a l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf ho\u1eb7c s\u1eeda \u0111\u1ed5i m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i c\u00e1ch th\u00e0nh ph\u1ea7n cha xu\u1ea5t hi\u1ec7n \u0111\u1ed1i v\u1edbi b\u00ean ngo\u00e0i.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"8,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"8,1,0\">\u1ee6y quy\u1ec1n v\u00e0 L\u1eafp r\u00e1p:<\/b>B\u00ean trong Terminal, c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i k\u1ebft c\u00e1c giao di\u1ec7n n\u00e0y \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac l\u1eafp r\u00e1p. M\u1ed9t giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p tr\u00ean c\u1ed5ng b\u00ean ngo\u00e0i \u1ee7y quy\u1ec1n c\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn tr\u1ef1c ti\u1ebfp \u0111\u1ebfn giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p c\u1ee7a th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 (nh\u01b0 \u0111\u01b0\u1ee3c th\u1ea5y v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u1eabn <b data-index-in-node=\"250\" data-path-to-node=\"8,1,0\">Tr\u1ea1ng th\u00e1i<\/b> v\u00e0 <b data-index-in-node=\"260\" data-path-to-node=\"8,1,0\">Chi ti\u1ebft<\/b> d\u1eabn v\u00e0o <b data-index-in-node=\"287\" data-path-to-node=\"8,1,0\">Ki\u1ec3m tra An to\u00e0n<\/b>). Ng\u01b0\u1ee3c l\u1ea1i, c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 n\u1ed1i c\u00e1c giao di\u1ec7n \u1ed5 c\u1eafm c\u1ea7n thi\u1ebft tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c giao di\u1ec7n k\u1eb9o m\u00fat \u0111\u01b0\u1ee3c cung c\u1ea5p c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n k\u1ec1 b\u00ean. V\u00ed d\u1ee5, th\u00e0nh ph\u1ea7n <b data-index-in-node=\"467\" data-path-to-node=\"8,1,0\">Ki\u1ec3m tra An to\u00e0n<\/b> ph\u1ee5 thu\u1ed9c v\u00e0o giao di\u1ec7n <b data-index-in-node=\"508\" data-path-to-node=\"8,1,0\">Ki\u1ec3m tra vi\u00ean<\/b> \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi <b data-index-in-node=\"540\" data-path-to-node=\"8,1,0\">Nh\u00e2n vi\u00ean<\/b>, c\u00e1i <b data-index-in-node=\"551\" data-path-to-node=\"8,1,0\">Chi ti\u1ebft l\u1ed7i<\/b> giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi <b data-index-in-node=\"588\" data-path-to-node=\"8,1,0\">L\u1ed7i<\/b>, v\u00e0 c\u00e1i <b data-index-in-node=\"604\" data-path-to-node=\"8,1,0\">V\u1ecb tr\u00ed<\/b> giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi <b data-index-in-node=\"635\" data-path-to-node=\"8,1,0\">B\u1ea3n \u0111\u1ed3<\/b>, t\u1ea1o ra m\u1ed9t h\u1ec7 sinh th\u00e1i n\u1ed9i b\u1ed9 \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p ch\u1eb7t ch\u1ebd nh\u01b0ng li\u00ean k\u1ebft l\u1ecfng l\u1ebbo.<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"What is Component Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/02-component-diagram-overview.png\"\/><\/p>\n<ul>\n<li>\n<p>L\u00ean k\u1ebf ho\u1ea1ch ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng theo m\u00f4-\u0111un<\/p>\n<\/li>\n<li>\n<p>Qu\u1ea3n l\u00fd c\u00e1c ph\u1ee5 thu\u1ed9c x\u00e2y d\u1ef1ng<\/p>\n<\/li>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c th\u01b0 vi\u1ec7n th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>3. S\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh<em>(\u0110\u01b0\u1ee3c th\u00eam v\u00e0o UML 2.0)<br \/>\n<\/em><\/h3>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c b\u1ed9 ph\u1eadn (c\u00e1c thu\u1ed9c t\u00ednh c\u00f3 m\u1ed1i quan h\u1ec7 to\u00e0n b\u1ed9-b\u1ed9 ph\u1eadn)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c c\u1ed5ng (\u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c giao di\u1ec7n cung c\u1ea5p\/y\u00eau c\u1ea7u)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c k\u1ebft n\u1ed1i (c\u00e1c li\u00ean k\u1ebft th\u1eddi gian ch\u1ea1y gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c l\u1ea7n xu\u1ea5t hi\u1ec7n h\u1ee3p t\u00e1c<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>: M\u00f4 h\u00ecnh h\u00f3a m\u1ed9t <code data-backticks=\"1\">Xe h\u01a1i<\/code>:<\/p>\n<h2 data-path-to-node=\"1\">Ph\u00e2n lo\u1ea1i bao b\u1ecdc (L\u1edbp)<\/h2>\n<p data-path-to-node=\"2\">H\u00ecnh ch\u1eef nh\u1eadt b\u00ean ngo\u00e0i \u0111\u1ea1i di\u1ec7n cho ph\u00e2n lo\u1ea1i ch\u1ee9a, trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 <b data-index-in-node=\"76\" data-path-to-node=\"2\">Xe h\u01a1i<\/b> l\u1edbp. Trong s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh, ranh gi\u1edbi n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t h\u1ed9p ch\u1ee9a bao b\u1ecdc c\u1ea5u h\u00ecnh th\u1eddi gian ch\u1ea1y n\u1ed9i b\u1ed9 c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 x\u00e1c \u0111\u1ecbnh b\u1ed1i c\u1ea3nh trong \u0111\u00f3 c\u00e1c th\u1ec3 hi\u1ec7n ri\u00eang l\u1ebb ph\u1ed1i h\u1ee3p v\u1edbi nhau \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch h\u00e0nh vi r\u1ed9ng h\u01a1n, che gi\u1ea5u \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u1ec1 c\u00e1ch m\u1ed9t chi\u1ebfc \u201cXe h\u01a1i\u201d ho\u1ea1t \u0111\u1ed9ng b\u00ean trong \u0111\u1ed1i v\u1edbi c\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i.<\/p>\n<h2 data-path-to-node=\"3\">C\u00e1c b\u1ed9 ph\u1eadn (C\u1ea5u tr\u00fac b\u00ean trong)<\/h2>\n<p data-path-to-node=\"4\">C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt b\u00ean trong ranh gi\u1edbi Xe h\u01a1i \u0111\u1ea1i di\u1ec7n cho<b data-index-in-node=\"58\" data-path-to-node=\"4\">C\u00e1c b\u1ed9 ph\u1eadn<\/b>. M\u1ed9t b\u1ed9 ph\u1eadn gi\u1ea3i th\u00edch vai tr\u00f2 do m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c th\u1ec3 hi\u1ec7n th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh th\u1ef1c thi b\u1ed9 ph\u00e2n lo\u1ea1i ch\u1ee9a n\u00f3. Thay v\u00ec hi\u1ec3n th\u1ecb m\u1ed1i quan h\u1ec7 t\u0129nh th\u1eddi \u0111i\u1ec3m bi\u00ean d\u1ecbch (gi\u1ed1ng nh\u01b0 s\u01a1 \u0111\u1ed3 l\u1edbp ti\u00eau chu\u1ea9n), c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y ch\u1ec9 ra c\u00e1c th\u1ec3 hi\u1ec7n th\u1eddi gian ch\u1ea1y l\u1ea5p \u0111\u1ea7y c\u00e1c v\u1ecb tr\u00ed ki\u1ebfn tr\u00fac c\u1ee5 th\u1ec3:<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"5,0,0\"><code data-index-in-node=\"0\" data-path-to-node=\"5,0,0\">-t : H\u1ed9p s\u1ed1<\/code><\/b>: M\u1ed9t th\u1ec3 hi\u1ec7n \u0111\u00f3ng vai tr\u00f2 h\u1ec7 th\u1ed1ng h\u1ed9p s\u1ed1.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"5,1,0\"><code data-index-in-node=\"0\" data-path-to-node=\"5,1,0\">-e : \u0110\u1ed9ng c\u01a1<\/code><\/b>: M\u1ed9t th\u1ec3 hi\u1ec7n \u0111\u00f3ng vai tr\u00f2 ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng c\u01a1.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"5,2,0\"><code data-index-in-node=\"0\" data-path-to-node=\"5,2,0\">-s : H\u1ec7 th\u1ed1ng l\u00e1i<\/code><\/b>: M\u1ed9t th\u1ec3 hi\u1ec7n \u0111\u00f3ng vai tr\u00f2 c\u01a1 c\u1ea5u l\u00e1i.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"6\">K\u00fd hi\u1ec7u d\u1ea5u hai ch\u1ea5m cho th\u1ea5y \u0111\u00e2y l\u00e0 c\u00e1c vai tr\u00f2 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c \u0111\u1ecbnh ki\u1ec3u b\u1edfi c\u00e1c l\u1edbp t\u01b0\u01a1ng \u1ee9ng, x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o ph\u1ea3i t\u1ed3n t\u1ea1i b\u00ean trong m\u1ed9t chi\u1ebfc Xe h\u01a1i ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h2 data-path-to-node=\"7\">C\u1ed5ng v\u00e0 ranh gi\u1edbi<\/h2>\n<p data-path-to-node=\"8\">Nh\u1eefng h\u00ecnh vu\u00f4ng nh\u1ecf \u0111\u01b0\u1ee3c nh\u00fang tr\u00ean c\u1ea3 ranh gi\u1edbi b\u1ed9 ph\u00e2n lo\u1ea1i b\u00ean ngo\u00e0i v\u00e0 ranh gi\u1edbi c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong \u0111\u1ea1i di\u1ec7n cho<b data-index-in-node=\"108\" data-path-to-node=\"8\">C\u1ed5ng<\/b>. C\u1ed5ng l\u00e0 c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c ri\u00eang bi\u1ec7t t\u00e1ch bi\u1ec7t c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i kh\u1ecfi m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i c\u1ee7a n\u00f3.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\">C\u00e1c c\u1ed5ng b\u00ean ngo\u00e0i tr\u00ean ranh gi\u1edbi Xe h\u01a1i\u2014v\u00ed d\u1ee5 nh\u01b0<b data-index-in-node=\"43\" data-path-to-node=\"9,0,0\"><code data-index-in-node=\"43\" data-path-to-node=\"9,0,0\">: B\u00e1nh xe<\/code><\/b>, <b data-index-in-node=\"52\" data-path-to-node=\"9,0,0\"><code data-index-in-node=\"52\" data-path-to-node=\"9,0,0\">: B\u00e0n \u0111\u1ea1p ga<\/code><\/b>, v\u00e0<b data-index-in-node=\"69\" data-path-to-node=\"9,0,0\"><code data-index-in-node=\"69\" data-path-to-node=\"9,0,0\">: V\u00f4 l\u0103ng<\/code><\/b>\u2014cho th\u1ea5y c\u00e1ch Xe h\u01a1i t\u01b0\u01a1ng t\u00e1c v\u1edbi th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i ho\u1eb7c m\u00f4i tr\u01b0\u1eddng v\u1eadt l\u00fd m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9<i data-index-in-node=\"178\" data-path-to-node=\"9,0,0\">b\u1ed9 ph\u1eadn n\u00e0o b\u00ean trong<\/i>\u0111ang x\u1eed l\u00fd nh\u1eefng t\u01b0\u01a1ng t\u00e1c \u0111\u00f3.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\">C\u00e1c c\u1ed5ng tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong (nh\u01b0 c\u00e1c c\u1ed5ng tr\u00ean kh\u1ed1i H\u1ed9p s\u1ed1 ho\u1eb7c \u0110\u1ed9ng c\u01a1) \u0111i\u1ec1u khi\u1ec3n c\u00e1ch c\u00e1c h\u1ec7 th\u1ed1ng con n\u00e0y giao ti\u1ebfp v\u1edbi nhau ho\u1eb7c v\u1edbi ranh gi\u1edbi cha.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"10\">C\u00e1c k\u1ebft n\u1ed1i v\u00e0 d\u00e2y d\u1eabn b\u00ean trong<\/h2>\n<p data-path-to-node=\"11\">Nh\u1eefng \u0111\u01b0\u1eddng n\u00e9t li\u1ec1n n\u1ed1i c\u00e1c c\u1ed5ng v\u1edbi nhau \u0111\u1ea1i di\u1ec7n cho<b data-index-in-node=\"53\" data-path-to-node=\"11\">C\u00e1c k\u1ebft n\u1ed1i<\/b>. C\u00e1c k\u1ebft n\u1ed1i x\u00e1c \u0111\u1ecbnh c\u00e1c con \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn ho\u1eb7c gi\u1eefa m\u1ed9t b\u1ed9 ph\u1eadn v\u00e0 m\u1ed9t c\u1ed5ng b\u00ean ngo\u00e0i trong th\u1eddi gian ch\u1ea1y.<\/p>\n<ul data-path-to-node=\"12\">\n<li>\n<p data-path-to-node=\"12,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"12,0,0\">C\u00e1c k\u1ebft n\u1ed1i \u1ee7y quy\u1ec1n:<\/b>K\u1ebft n\u1ed1i c\u1ed5ng b\u00ean ngo\u00e0i c\u1ee7a container tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u1ed5ng b\u00ean trong c\u1ee7a m\u1ed9t b\u1ed9 ph\u1eadn. V\u00ed d\u1ee5, c\u1ed5ng b\u00ean ngo\u00e0i<b data-index-in-node=\"125\" data-path-to-node=\"12,0,0\"><code data-index-in-node=\"125\" data-path-to-node=\"12,0,0\">: V\u00e0nh xe<\/code><\/b> c\u1ed5ng k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u00e0o <b data-index-in-node=\"163\" data-path-to-node=\"12,0,0\">H\u1ed9p s\u1ed1<\/b>, v\u00e0 b\u00ean ngo\u00e0i <b data-index-in-node=\"194\" data-path-to-node=\"12,0,0\"><code data-index-in-node=\"194\" data-path-to-node=\"12,0,0\">: V\u00f4 l\u0103ng<\/code><\/b> k\u1ebft n\u1ed1i th\u1eb3ng t\u1edbi <b data-index-in-node=\"233\" data-path-to-node=\"12,0,0\">H\u1ec7 th\u1ed1ng l\u00e1i<\/b>. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c k\u00edch th\u00edch b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u01a1n tru \u0111\u1ebfn t\u00e1c nh\u00e2n n\u1ed9i b\u1ed9 ph\u00f9 h\u1ee3p.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"12,1,0\">C\u00e1c b\u1ed9 n\u1ed1i l\u1eafp r\u00e1p:<\/b> K\u1ebft n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong v\u1edbi nhau \u0111\u1ec3 cho ph\u00e9p h\u1ee3p t\u00e1c. B\u1ed9 n\u1ed1i gi\u1eefa <b data-index-in-node=\"100\" data-path-to-node=\"12,1,0\">H\u1ed9p s\u1ed1<\/b> v\u00e0 <b data-index-in-node=\"121\" data-path-to-node=\"12,1,0\">\u0110\u1ed9ng c\u01a1<\/b> cho th\u1ea5y hai vai tr\u00f2 ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh ri\u00eang bi\u1ec7t n\u00e0y trao \u0111\u1ed5i tr\u1ef1c ti\u1ebfp t\u00edn hi\u1ec7u, d\u1eef li\u1ec7u ho\u1eb7c l\u1ef1c c\u01a1 h\u1ecdc \u0111\u1ec3 xe ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t th\u1ec3 th\u1ed1ng nh\u1ea5t.<\/p>\n<\/li>\n<\/ul>\n<p id=\"RfTJiln\"><img alt=\"\" class=\"alignnone size-full wp-image-18820\" decoding=\"async\" height=\"227\" loading=\"lazy\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0c014d248a2.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0c014d248a2.png 574w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0c014d248a2-300x119.png 300w\" width=\"574\"\/><\/p>\n<p><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c m\u1eabu thi\u1ebft k\u1ebf<\/p>\n<\/li>\n<li>\n<p>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c h\u1ee3p t\u00e1c n\u1ed9i b\u1ed9 ph\u1ee9c t\u1ea1p<\/p>\n<\/li>\n<li>\n<p>C\u1ea7u n\u1ed1i gi\u1eefa thi\u1ebft k\u1ebf l\u1edbp v\u00e0 tri\u1ec3n khai th\u00e0nh ph\u1ea7n<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>4. S\u01a1 \u0111\u1ed3 tri\u1ec3n khai<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m v\u00e0o m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi ph\u1ea7n c\u1ee9ng.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c n\u00fat (thi\u1ebft b\u1ecb, m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi)<\/p>\n<\/li>\n<li>\n<p>Th\u00e0nh ph\u1ea7n (\u0111\u01a1n v\u1ecb tri\u1ec3n khai)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng gi\u1eefa c\u00e1c n\u00fat<\/p>\n<\/li>\n<li>\n<p>Th\u00f4ng s\u1ed1 tri\u1ec3n khai (chi ti\u1ebft c\u1ea5u h\u00ecnh)<\/p>\n<\/li>\n<\/ul>\n<h2><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/h2>\n<h3 data-path-to-node=\"1\">C\u00e1c n\u00fat v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u1eadt l\u00fd<\/h3>\n<p data-path-to-node=\"2\">Kh\u00e1c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 thi\u1ebft k\u1ebf logic m\u00f4 h\u00ecnh h\u00f3a b\u1ed1 c\u1ee5c m\u00e3 ngu\u1ed3n ho\u1eb7c c\u1ea5u tr\u00fac l\u1edbp, s\u01a1 \u0111\u1ed3 tri\u1ec3n khai t\u1eadp trung v\u00e0o topography ph\u1ea7n c\u1ee9ng. C\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng ch\u00ednh l\u00e0 <b data-index-in-node=\"164\" data-path-to-node=\"2\">C\u00e1c n\u00fat<\/b>, \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n tr\u1ef1c quan d\u01b0\u1edbi d\u1ea1ng c\u00e1c kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng ba chi\u1ec1u. C\u00e1c n\u00fat minh h\u1ecda c\u00e1c t\u00e0i nguy\u00ean t\u00ednh to\u00e1n v\u1eadt l\u00fd ho\u1eb7c m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi n\u01a1i c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m th\u1ef1c s\u1ef1 ch\u1ea1y:<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">&lt;&lt;processor&gt;&gt;<\/code> C\u00e1c n\u00fat:<\/b> C\u00e1c kh\u1ed1i \u0111\u01b0\u1ee3c \u0111\u1ecbnh ki\u1ec3u v\u1edbi <code data-index-in-node=\"44\" data-path-to-node=\"3,0,0\">&lt;&lt;processor&gt;&gt;<\/code> (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"67\" data-path-to-node=\"3,0,0\">M\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m<\/b>, <b data-index-in-node=\"83\" data-path-to-node=\"3,0,0\">M\u00e1y ch\u1ee7 ch\u00ednh<\/b>, v\u00e0 c\u00e1c kh\u1ed1i <b data-index-in-node=\"111\" data-path-to-node=\"3,0,0\">M\u00e1y ch\u1ee7<\/b> kh\u1ed1i) \u0111\u1ea1i di\u1ec7n cho c\u00e1c n\u00fat c\u00f3 kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n, b\u1ed9 nh\u1edb v\u00e0 s\u1ee9c m\u1ea1nh x\u1eed l\u00fd \u0111\u1ee7 \u0111\u1ec3 th\u1ef1c thi c\u00e1c t\u1eadp tin nh\u1ecb ph\u00e2n ph\u1ea7n m\u1ec1m.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\"><code data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">&lt;&lt;network&gt;&gt;<\/code> C\u00e1c n\u00fat:<\/b> Kh\u1ed1i h\u00ecnh ch\u1eef nh\u1eadt \u0111\u01b0\u1ee3c ghi nh\u00e3n <b data-index-in-node=\"46\" data-path-to-node=\"3,1,0\">M\u1ea1ng c\u1ee5c b\u1ed9<\/b> \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ecbnh tuy\u1ebfn thay v\u00ec m\u1ed9t m\u00e1y t\u00ednh ri\u00eang l\u1ebb. N\u00f3 th\u1ec3 hi\u1ec7n n\u1ec1n t\u1ea3ng v\u1eadt l\u00fd cho ph\u00e9p c\u00e1c b\u1ed9 x\u1eed l\u00fd k\u1ebft n\u1ed1i trao \u0111\u1ed5i lu\u1ed3ng g\u00f3i d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,2,0\">C\u00e1c n\u00fat thi\u1ebft b\u1ecb:<\/b> C\u00e1c n\u00fat kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ki\u1ec3u nh\u01b0 <b data-index-in-node=\"39\" data-path-to-node=\"3,2,0\">Internet<\/b> v\u00e0 <b data-index-in-node=\"52\" data-path-to-node=\"3,2,0\">B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn modem<\/b> \u0111\u1ea1i di\u1ec7n cho c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng bi\u00ean ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u1eadt l\u00fd b\u00ean ngo\u00e0i c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp b\u00ean ngo\u00e0i v\u00e0o m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng c\u1ed1t l\u00f5i.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">C\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 c\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng<\/h2>\n<p data-path-to-node=\"5\">C\u00e1c \u0111\u01b0\u1eddng li\u1ec1n n\u1ed1i c\u00e1c kh\u1ed1i ba chi\u1ec1u \u0111\u1ea1i di\u1ec7n cho <b data-index-in-node=\"65\" data-path-to-node=\"5\">C\u00e1c m\u1ed1i li\u00ean k\u1ebft<\/b>. Trong s\u01a1 \u0111\u1ed3 tri\u1ec3n khai, c\u00e1c m\u1ed1i li\u00ean k\u1ebft n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng v\u1eadt l\u00fd, c\u00e1c li\u00ean k\u1ebft m\u1ea1ng ho\u1eb7c c\u00e1c k\u1ebft n\u1ed1i ph\u1ea7n c\u1ee9ng gi\u1eefa c\u00e1c n\u00fat.<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\">\u0110\u01b0\u1eddng n\u1ed1i gi\u1eefa <b data-index-in-node=\"17\" data-path-to-node=\"6,0,0\">Internet<\/b> v\u00e0 <b data-index-in-node=\"30\" data-path-to-node=\"6,0,0\">B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Modem<\/b>cho th\u1ea5y \u0111i\u1ec3m v\u00e0o c\u1ee7a d\u1eef li\u1ec7u c\u00f4ng c\u1ed9ng b\u00ean ngo\u00e0i v\u00e0o t\u1ea7ng ph\u1ea7n c\u1ee9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\">M\u1ed1i li\u00ean k\u1ebft k\u00e9o d\u00e0i t\u1eeb <b data-index-in-node=\"35\" data-path-to-node=\"6,1,0\">B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Modem<\/b>xu\u1ed1ng \u0111\u1ebfn <b data-index-in-node=\"60\" data-path-to-node=\"6,1,0\">M\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m<\/b>x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng \u0111i v\u1eadt l\u00fd c\u1ee7a l\u01b0u l\u01b0\u1ee3ng \u0111\u1ebfn t\u1eeb b\u00ean ngo\u00e0i xu\u1ed1ng l\u1edbp b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\">C\u00e1c m\u1ed1i li\u00ean k\u1ebft n\u1ed1i gi\u1eefa <b data-index-in-node=\"25\" data-path-to-node=\"6,2,0\">C\u00e1c m\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m<\/b> v\u00e0 c\u1ee5m m\u00e1y ch\u1ee7 n\u1ec1n t\u1ea3ng <b data-index-in-node=\"60\" data-path-to-node=\"6,2,0\">M\u00e1y ch\u1ee7 ch\u00ednh<\/b> \u0111\u1ebfn <b data-index-in-node=\"90\" data-path-to-node=\"6,2,0\">M\u1ea1ng c\u1ee5c b\u1ed9<\/b>thi\u1ebft l\u1eadp c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 giao ti\u1ebfp qua c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng bus c\u1ee5c b\u1ed9 t\u1ed1c \u0111\u1ed9 cao chung ho\u1eb7c c\u00f4ng t\u1eafc m\u1ea1ng.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">L\u1edbp topo v\u00e0 d\u1ef1 ph\u00f2ng<\/h2>\n<p data-path-to-node=\"8\">S\u1ef1 s\u1eafp x\u1ebfp c\u00e1c n\u00fat trong s\u01a1 \u0111\u1ed3 r\u00f5 r\u00e0ng cho th\u1ea5y ki\u1ebfn tr\u00fac tri\u1ec3n khai v\u00e0 c\u00e1c l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng s\u1eb5n s\u00e0ng cao v\u00e0 ph\u00e2n ph\u1ed1i t\u1ea3i.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,0,0\">L\u1edbp b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean:<\/b> N\u1eb1m ngay ph\u00eda d\u01b0\u1edbi thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng modem \u0111i\u1ec3m v\u00e0o l\u00e0 hai n\u00fat m\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m ri\u00eang bi\u1ec7t, song song. C\u1ea5u h\u00ecnh n\u00e0y tr\u1ef1c quan minh h\u1ecda m\u1ed9t l\u1edbp bi\u00ean d\u1ef1 ph\u00f2ng nh\u1eb1m ph\u00e2n ph\u1ed1i t\u1ea3i l\u01b0u l\u01b0\u1ee3ng \u0111\u1ebfn v\u00e0 l\u01b0u tr\u1eef t\u00e0i s\u1ea3n tr\u01b0\u1edbc khi c\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn t\u1ea7ng h\u1ea1 t\u1ea7ng s\u00e2u.<b data-index-in-node=\"104\" data-path-to-node=\"9,0,0\">M\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m<\/b>n\u00fat. C\u1ea5u h\u00ecnh n\u00e0y tr\u1ef1c quan minh h\u1ecda m\u1ed9t l\u1edbp bi\u00ean d\u1ef1 ph\u00f2ng nh\u1eb1m ph\u00e2n ph\u1ed1i t\u1ea3i l\u01b0u l\u01b0\u1ee3ng \u0111\u1ebfn v\u00e0 l\u01b0u tr\u1eef t\u00e0i s\u1ea3n tr\u01b0\u1edbc khi c\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn t\u1ea7ng h\u1ea1 t\u1ea7ng s\u00e2u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,1,0\">Trang tr\u1ea1i m\u00e1y ch\u1ee7 n\u1ed9i b\u1ed9:<\/b> N\u1eb1m \u1edf \u0111\u00e1y t\u1ea7ng, k\u1ebft n\u1ed1i th\u00f4ng qua <b data-index-in-node=\"79\" data-path-to-node=\"9,1,0\">M\u1ea1ng c\u1ee5c b\u1ed9<\/b>, l\u00e0 m\u1ed9t c\u1ee5m m\u00e1y ch\u1ee7 c\u1ed1t l\u00f5i. S\u1ef1 ph\u00e2n bi\u1ec7t gi\u1eefa <b data-index-in-node=\"156\" data-path-to-node=\"9,1,0\">M\u00e1y ch\u1ee7 ch\u00ednh<\/b> v\u00e0 ki\u1ec3u t\u1ed5ng qu\u00e1t li\u1ec1n k\u1ec1 <b data-index-in-node=\"196\" data-path-to-node=\"9,1,0\">M\u00e1y ch\u1ee7<\/b> c\u00e1c n\u00fat tr\u1ef1c quan h\u00f3a b\u1ed1 c\u1ee5c ki\u1ebfn tr\u00fac ch\u1ee7-ph\u1ee5c v\u1ee5 ho\u1eb7c ch\u00ednh-ph\u1ee5, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c duy tr\u00ec v\u00e0 c\u00e1c t\u00e1c v\u1ee5 t\u00ednh to\u00e1n n\u1eb7ng \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u n\u1ed9i b\u1ed9.<\/p>\n<\/li>\n<\/ul>\n<h2><img alt=\"What is Deployment Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/02-deployment-diagram-notations.png\"\/><\/h2>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: M\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac n\u1ed9i b\u1ed9 c\u1ee7a c\u00e1c b\u1ed9 ph\u00e2n lo\u1ea1i v\u00e0 c\u00e1c m\u1eabu ph\u1ee9c t\u1ea1p.<\/p>\n<ul>\n<li>\n<p>L\u00ean k\u1ebf ho\u1ea1ch h\u1ea1 t\u1ea7ng h\u1ec7 th\u1ed1ng<\/p>\n<\/li>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c ki\u1ebfn tr\u00fac ph\u00e2n t\u00e1n<\/p>\n<\/li>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh c\u00e1c chi\u1ebfn l\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i v\u00e0 d\u1ef1 ph\u00f2ng<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>5. S\u01a1 \u0111\u1ed3 g\u00f3i<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: T\u1ed5 ch\u1ee9c v\u00e0 qu\u1ea3n l\u00fd kh\u00f4ng gian t\u00ean th\u00f4ng qua nh\u00f3m logic.<\/p>\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>G\u00f3i (h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 tab)<\/p>\n<\/li>\n<li>\n<p>M\u1ed1i quan h\u1ec7 nh\u1eadp v\u00e0o\/truy c\u1eadp (<code data-backticks=\"1\">\u00abimport\u00bb<\/code>,\u00a0<code data-backticks=\"1\">\u00abaccess\u00bb<\/code>)<\/p>\n<\/li>\n<li>\n<p>M\u1ed1i quan h\u1ec7 h\u1ee3p nh\u1ea5t (<code data-backticks=\"1\">\u00abmerge\u00bb<\/code>)<\/p>\n<\/li>\n<li>\n<p>\u0110\u1ed9 hi\u1ec3n th\u1ecb (<code data-backticks=\"1\">+<\/code>\u00a0c\u00f4ng khai,\u00a0<code data-backticks=\"1\">-<\/code>\u00a0ri\u00eang t\u01b0)<\/p>\n<\/li>\n<\/ul>\n<h1><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<\/h1>\n<h2 data-path-to-node=\"1\">Bi\u00ean gi\u1edbi h\u1ec7 th\u1ed1ng con v\u00e0 g\u00f3i<\/h2>\n<p data-path-to-node=\"2\">S\u01a1 \u0111\u1ed3 d\u1ef1a r\u1ea5t nhi\u1ec1u v\u00e0o k\u00fd hi\u1ec7u &#8220;th\u01b0 m\u1ee5c&#8221; \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c nh\u00f3m logic c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n thi\u1ebft k\u1ebf.<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">Ph\u1ea7n ph\u1ee5:<\/b> Th\u01b0 m\u1ee5c l\u1edbn b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c \u0111\u1ecbnh ki\u1ec3u l\u00e0 <b data-index-in-node=\"49\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"49\" data-path-to-node=\"3,0,0\">&lt;&lt;ph\u1ea7n ph\u1ee5&gt;&gt; Qu\u1ea3n l\u00fd \u0111\u01a1n h\u00e0ng<\/code><\/b> \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111\u01a1n v\u1ecb h\u00e0nh vi l\u1edbn v\u00e0 bao \u0111\u00f3ng c\u1ee7a h\u1ec7 th\u1ed1ng v\u1eadt l\u00fd. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t container c\u1ea5p cao, nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0 g\u00f3i li\u00ean quan c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u1ef1c thi qu\u1ea3n l\u00fd \u0111\u01a1n h\u00e0ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">G\u00f3i:<\/b> C\u00e1c th\u01b0 m\u1ee5c nh\u1ecf b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i ph\u1ea7n ph\u1ee5 (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"71\" data-path-to-node=\"3,1,0\">Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/b>, <b data-index-in-node=\"75\" data-path-to-node=\"3,1,0\">X\u1eed l\u00fd \u0111\u01a1n h\u00e0ng<\/b>, v\u00e0 <b data-index-in-node=\"97\" data-path-to-node=\"3,1,0\">Qu\u1ea3n l\u00fd Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/b>) l\u00e0 c\u00e1c g\u00f3i ti\u00eau chu\u1ea9n. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1eafp x\u1ebfp c\u00e1c th\u00e0nh ph\u1ea7n th\u00e0nh c\u00e1c nh\u00f3m d\u1ec5 qu\u1ea3n l\u00fd, thi\u1ebft l\u1eadp kh\u00f4ng gian t\u00ean v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c ranh gi\u1edbi kh\u1ea3 n\u0103ng nh\u00ecn th\u1ea5y trong ki\u1ebfn tr\u00fac.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">Quan h\u1ec7 ph\u1ee5 thu\u1ed9c v\u00e0 l\u1edbp ki\u1ebfn tr\u00fac<\/h2>\n<p data-path-to-node=\"5\">C\u00e1c m\u0169i t\u00ean g\u1ea1ch ngang ch\u1ec9 ra <b data-index-in-node=\"27\" data-path-to-node=\"5\">Quan h\u1ec7 ph\u1ee5 thu\u1ed9c<\/b>, x\u00e1c l\u1eadp r\u1eb1ng m\u1ed9t thay \u0111\u1ed5i trong m\u1ed9t g\u00f3i (\u0111\u00edch \u0111\u1ebfn) c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a g\u00f3i kh\u1edfi ngu\u1ed3n (ngu\u1ed3n).<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,0,0\">Quan h\u1ec7 ph\u1ee5 thu\u1ed9c n\u1ed9i b\u1ed9:<\/b> B\u00ean trong ph\u1ea7n ph\u1ee5 Qu\u1ea3n l\u00fd \u0111\u01a1n h\u00e0ng, l\u1edbp ki\u1ebfn tr\u00fac theo h\u01b0\u1edbng t\u1eeb tr\u00ean xu\u1ed1ng l\u00e0 r\u00f5 r\u00e0ng. G\u00f3i <b data-index-in-node=\"110\" data-path-to-node=\"6,0,0\">Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/b> ph\u1ee5 thu\u1ed9c v\u00e0o <b data-index-in-node=\"132\" data-path-to-node=\"6,0,0\">X\u1eed l\u00fd \u0111\u01a1n h\u00e0ng<\/b>, v\u00e0 theo th\u1ee9 t\u1ef1, ph\u1ee5 thu\u1ed9c v\u00e0o <b data-index-in-node=\"179\" data-path-to-node=\"6,0,0\">M\u00e1y t\u00ednh gi\u00e1<\/b> v\u00e0 <b data-index-in-node=\"200\" data-path-to-node=\"6,0,0\">B\u1ed9 nh\u1edb ngo\u00e0i<\/b>. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho lu\u1ed3ng ki\u1ebfn tr\u00fac n\u01a1i c\u00e1c th\u00e0nh ph\u1ea7n tr\u00ecnh b\u00e0y c\u1ea5p cao ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c l\u1edbp logic kinh doanh c\u1ed1t l\u00f5i v\u00e0 l\u1edbp truy c\u1eadp d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,1,0\">Quan h\u1ec7 ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i b\u00ean ngo\u00e0i:<\/b> C\u00e1c g\u00f3i c\u0169ng c\u00f3 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n n\u1eb1m ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng ph\u1ee5 ngay l\u1eadp t\u1ee9c. V\u00ed d\u1ee5, g\u00f3i <b data-index-in-node=\"131\" data-path-to-node=\"6,1,0\">Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/b> g\u00f3i c\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o b\u00ean ngo\u00e0i <b data-index-in-node=\"175\" data-path-to-node=\"6,1,0\">GUIManager<\/b>. T\u01b0\u01a1ng t\u1ef1, c\u00e1c <b data-index-in-node=\"202\" data-path-to-node=\"6,1,0\">Random Storage<\/b> v\u00e0 <b data-index-in-node=\"221\" data-path-to-node=\"6,1,0\">Stream Storage<\/b> c\u00e1c g\u00f3i \u1edf d\u01b0\u1edbi c\u00f9ng v\u01b0\u1ee3t qua ranh gi\u1edbi ph\u1ee5 h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u b\u00ean ngo\u00e0i, l\u00e0m n\u1ed5i b\u1eadt c\u00e1ch ph\u1ee5 h\u1ec7 th\u1ed1ng t\u00edch h\u1ee3p v\u00e0o m\u1ed9t sinh th\u00e1i ph\u1ea7n m\u1ec1m l\u1edbn h\u01a1n.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">Abstraction v\u00e0 K\u1ebf th\u1eeba (T\u1ed5ng qu\u00e1t h\u00f3a)<\/h2>\n<p data-path-to-node=\"8\">S\u01a1 \u0111\u1ed3 s\u1eed d\u1ee5ng phong c\u00e1ch chuy\u00ean bi\u1ec7t v\u00e0 c\u00e1c m\u0169i t\u00ean quan h\u1ec7 \u0111\u1ec3 minh h\u1ecda c\u00e1c m\u1eabu thi\u1ebft k\u1ebf tr\u1eebu t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o ki\u1ebfn tr\u00fac module.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,0,0\">G\u00f3i tr\u1eebu t\u01b0\u1ee3ng so v\u1edbi g\u00f3i c\u1ee5 th\u1ec3:<\/b> C\u00e1c g\u00f3i ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n tr\u1eebu t\u01b0\u1ee3ng ho\u1eb7c \u0111\u1ecbnh ngh\u0129a c\u1ea5u tr\u00fac gi\u1ed1ng giao di\u1ec7n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng t\u00ean nghi\u00eang (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"157\" data-path-to-node=\"9,0,0\"><i data-index-in-node=\"157\" data-path-to-node=\"9,0,0\">External Storage<\/i><\/b> v\u00e0 <b data-index-in-node=\"178\" data-path-to-node=\"9,0,0\"><i data-index-in-node=\"178\" data-path-to-node=\"9,0,0\">StorageManagement<\/i><\/b>). Ng\u01b0\u1ee3c l\u1ea1i, c\u00e1c g\u00f3i ch\u1ee9a c\u00e1c tri\u1ec3n khai m\u00e3 ho\u1ea1t \u0111\u1ed9ng, nh\u01b0 <b data-index-in-node=\"269\" data-path-to-node=\"9,0,0\">Repository<\/b> v\u00e0 <b data-index-in-node=\"284\" data-path-to-node=\"9,0,0\">FileStorage<\/b>, s\u1eed d\u1ee5ng v\u0103n b\u1ea3n ti\u00eau chu\u1ea9n \u0111\u1ec3 ch\u1ec9 ra r\u1eb1ng ch\u00fang l\u00e0 c\u00e1c g\u00f3i c\u1ee5 th\u1ec3.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,1,0\">T\u1ed5ng qu\u00e1t h\u00f3a:<\/b> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi tam gi\u00e1c tr\u1ed1ng, m\u1edf h\u01b0\u1edbng v\u1ec1 g\u00f3i cha. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed1i quan h\u1ec7 k\u1ebf th\u1eeba ho\u1eb7c tri\u1ec3n khai. B\u00ean trong ph\u1ee5 h\u1ec7 th\u1ed1ng, <b data-index-in-node=\"190\" data-path-to-node=\"9,1,0\">Random Storage<\/b> v\u00e0 <b data-index-in-node=\"209\" data-path-to-node=\"9,1,0\">Stream Storage<\/b> chuy\u00ean bi\u1ec7t h\u00f3a ho\u1eb7c tri\u1ec3n khai giao di\u1ec7n tr\u1eebu t\u01b0\u1ee3ng <b data-index-in-node=\"261\" data-path-to-node=\"9,1,0\"><i data-index-in-node=\"261\" data-path-to-node=\"9,1,0\">External Storage<\/i><\/b> giao di\u1ec7n. B\u00ean ngo\u00e0i ph\u1ee5 h\u1ec7 th\u1ed1ng, c\u00e1c g\u00f3i c\u1ee5 th\u1ec3 <b data-index-in-node=\"325\" data-path-to-node=\"9,1,0\">Repository<\/b> v\u00e0 <b data-index-in-node=\"340\" data-path-to-node=\"9,1,0\">FileStorage<\/b> c\u00e1c g\u00f3i m\u1edf r\u1ed9ng l\u00ean m\u1ee9c tr\u1eebu t\u01b0\u1ee3ng <b data-index-in-node=\"393\" data-path-to-node=\"9,1,0\"><i data-index-in-node=\"393\" data-path-to-node=\"9,1,0\">Qu\u1ea3n l\u00fd L\u01b0u tr\u1eef<\/i><\/b> g\u00f3i, cho th\u1ea5y c\u00e1ch m\u00f4 h\u00ecnh h\u00f3a h\u00e0nh vi \u0111a h\u00ecnh v\u00e0 ph\u00e2n lo\u1ea1i c\u1ea5u tr\u00fac \u1edf c\u1ea5p \u0111\u1ed9 g\u00f3i.<\/p>\n<p><img alt=\"What is Package Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/08-package-diagram-order-subsystem.png\"\/><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<\/li>\n<li>\n<p>Qu\u1ea3n l\u00fd c\u00e1c c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n l\u1edbn<\/p>\n<\/li>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi m\u00f4-\u0111un<\/p>\n<\/li>\n<li>\n<p>Ki\u1ec3m so\u00e1t c\u00e1c ph\u1ee5 thu\u1ed9c bi\u00ean d\u1ecbch<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>6. S\u01a1 \u0111\u1ed3 \u0110\u1ed1i t\u01b0\u1ee3ng<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Hi\u1ec3n th\u1ecb c\u00e1c b\u1ee9c \u1ea3nh ch\u1ee5p nhanh v\u1ec1 c\u00e1c th\u1ec3 hi\u1ec7n v\u00e0 c\u00e1c li\u00ean k\u1ebft c\u1ee7a ch\u00fang t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng (t\u00ean \u0111\u01b0\u1ee3c g\u1ea1ch ch\u00e2n:\u00a0<code data-backticks=\"1\">myCar:Car<\/code>)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c th\u1ec3 hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng<\/p>\n<\/li>\n<li>\n<p>Gi\u00e1 tr\u1ecb thu\u1ed9c t\u00ednh t\u1ea1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<h2 data-path-to-node=\"1\">C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 c\u00e1c th\u1ec3 hi\u1ec7n c\u1ee5 th\u1ec3<\/h2>\n<p data-path-to-node=\"2\">Kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 l\u1edbp th\u1ec3 hi\u1ec7n c\u00e1c c\u1ea5u h\u00ecnh tr\u1eebu t\u01b0\u1ee3ng, c\u1ea5p b\u1ea3n v\u1ebd, s\u01a1 \u0111\u1ed3 \u0111\u1ed1i t\u01b0\u1ee3ng ghi l\u1ea1i c\u00e1c th\u1ec3 hi\u1ec7n th\u1ef1c t\u1ebf \u0111ang s\u1ed1ng trong b\u1ed9 nh\u1edb. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng h\u00ecnh ch\u1eef nh\u1eadt, v\u00e0 t\u00ean c\u1ee7a ch\u00fang lu\u00f4n \u0111\u01b0\u1ee3c g\u1ea1ch ch\u00e2n \u0111\u1ec3 ch\u1ec9 ra vi\u1ec7c kh\u1edfi t\u1ea1o.<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 t\u00ean:<\/b> Ch\u00fang tu\u00e2n theo c\u00fa ph\u00e1p <code data-index-in-node=\"39\" data-path-to-node=\"3,0,0\">t\u00eanTh\u1ec3hi\u1ec7n : T\u00eanL\u1edbp<\/code>. V\u00ed d\u1ee5, <b data-index-in-node=\"78\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"78\" data-path-to-node=\"3,0,0\">c : C\u00f4ngTy<\/code><\/b> \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ec3 hi\u1ec7n c\u00f4ng ty c\u1ee5 th\u1ec3 c\u00f3 t\u00ean l\u00e0 \u201cc\u201d, v\u00e0 <b data-index-in-node=\"144\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"144\" data-path-to-node=\"3,0,0\">p : Ng\u01b0\u1eddi<\/code><\/b> \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ec3 hi\u1ec7n c\u00e1 nh\u00e2n c\u1ee5 th\u1ec3 c\u00f3 t\u00ean l\u00e0 \u201cp\u201d.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">\u0110\u1ed1i t\u01b0\u1ee3ng \u1ea9n danh:<\/b> Khi kh\u00f4ng c\u1ea7n ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecbnh danh c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t th\u1ec3 hi\u1ec7n ho\u1eb7c kh\u00f4ng li\u00ean quan \u0111\u1ebfn t\u00ecnh hu\u1ed1ng, ch\u1ec9 c\u1ea7n cung c\u1ea5p t\u00ean l\u1edbp, \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng d\u1ea5u hai ch\u1ea5m (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"159\" data-path-to-node=\"3,1,0\"><code data-index-in-node=\"159\" data-path-to-node=\"3,1,0\">: Th\u00f4ng tinLi\u00eanH\u1ec7<\/code><\/b>). \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh r\u1eb1ng m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a th\u00f4ng tin li\u00ean h\u1ec7 t\u1ed3n t\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o c\u1ea5u tr\u00fac, nh\u01b0ng kh\u00f4ng c\u1ea7n c\u00f3 t\u00ean bi\u1ebfn duy nh\u1ea5t trong ng\u1eef c\u1ea3nh n\u00e0y.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">Tr\u1ea1ng th\u00e1i v\u00e0 Gi\u00e1 tr\u1ecb Thu\u1ed9c t\u00ednh<\/h2>\n<p data-path-to-node=\"5\">Ph\u1ea7n d\u01b0\u1edbi c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee9a tr\u1ea1ng th\u00e1i c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c gi\u00e1 tr\u1ecb r\u00f5 r\u00e0ng \u0111\u01b0\u1ee3c g\u00e1n cho c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a n\u00f3 t\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111\u00f3. Thay v\u00ec ch\u1ec9 li\u1ec7t k\u00ea ki\u1ec3u d\u1eef li\u1ec7u, c\u00e1c m\u1ee5c n\u00e0y s\u1eed d\u1ee5ng \u0111\u1ecbnh d\u1ea1ng g\u00e1n <code data-index-in-node=\"209\" data-path-to-node=\"5\">thu\u1ed9c_t\u00ednh = gi\u00e1_tr\u1ecb<\/code> \u0111\u1ec3 ph\u1ea3n \u00e1nh th\u1ef1c t\u1ebf:<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\">Th\u1ec3 hi\u1ec7n ph\u00f2ng ban <code data-index-in-node=\"24\" data-path-to-node=\"6,0,0\">d1<\/code>ch\u1ee9a gi\u00e1 tr\u1ecb thu\u1ed9c t\u00ednh <code data-index-in-node=\"53\" data-path-to-node=\"6,0,0\">t\u00ean = B\u00e1n h\u00e0ng<\/code>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\">M\u1ed9t th\u1ec3 hi\u1ec7n ph\u00f2ng ban kh\u00e1c <code data-index-in-node=\"37\" data-path-to-node=\"6,1,0\">d2<\/code>ch\u1ee9a gi\u00e1 tr\u1ecb <code data-index-in-node=\"56\" data-path-to-node=\"6,1,0\">t\u00ean = Nghi\u00ean_c\u1ee9u_ph\u00e1t_tri\u1ec3n<\/code>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\">Th\u1ec3 hi\u1ec7n c\u00e1 nh\u00e2n <code data-index-in-node=\"20\" data-path-to-node=\"6,2,0\">p<\/code>ch\u1ee9a m\u1ed9t b\u1ed9 \u0111\u1ea7y \u0111\u1ee7 d\u1eef li\u1ec7u tr\u1ea1ng th\u00e1i, m\u00f4 t\u1ea3 m\u1ed9t h\u1ed3 s\u01a1 c\u1ee5 th\u1ec3: <code data-index-in-node=\"89\" data-path-to-node=\"6,2,0\">t\u00ean = Derek<\/code>, <code data-index-in-node=\"103\" data-path-to-node=\"6,2,0\">m\u00e3_nh\u00e2n_vi\u00ean = D-12821<\/code>, v\u00e0 <code data-index-in-node=\"129\" data-path-to-node=\"6,2,0\">ch\u1ee9c_v\u1ee5 = Qu\u1ea3n_l\u00fd<\/code>.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">Li\u00ean_k\u1ebft v\u00e0 M\u1ed1i_quan_h\u1ec7<\/h2>\n<p data-path-to-node=\"8\">Nh\u1eefng \u0111\u01b0\u1eddng li\u1ec1n n\u1ed1i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng bi\u1ec3u th\u1ecb <b data-index-in-node=\"49\" data-path-to-node=\"8\">Li\u00ean_k\u1ebft<\/b>. M\u1ed9t li\u00ean k\u1ebft l\u00e0 m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh gi\u1eefa c\u00e1c l\u1edbp. N\u1ebfu s\u01a1 \u0111\u1ed3 l\u1edbp n\u00f3i r\u1eb1ng C\u00e1c c\u00f4ng ty c\u00f3 c\u00e1c ph\u00f2ng ban, s\u01a1 \u0111\u1ed3 \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd minh h\u1ecda c\u00e1c k\u1ebft n\u1ed1i th\u1ef1c t\u1ebf t\u1ea1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y gi\u1eefa ch\u00fang.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\">Th\u1ec3 hi\u1ec7n c\u00f4ng ty <code data-index-in-node=\"21\" data-path-to-node=\"9,0,0\">c<\/code> \u0111ang \u0111\u01b0\u1ee3c li\u00ean k\u1ebft t\u00edch c\u1ef1c v\u1edbi c\u00e1c th\u1ec3 hi\u1ec7n ph\u00f2ng ban <code data-index-in-node=\"66\" data-path-to-node=\"9,0,0\">d1<\/code> (B\u00e1n h\u00e0ng) v\u00e0 <code data-index-in-node=\"81\" data-path-to-node=\"9,0,0\">d2<\/code> (Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\">S\u01a1 \u0111\u1ed3 c\u0169ng th\u1ec3 hi\u1ec7n vi\u1ec7c k\u1ebft n\u1ed1i th\u1ec3 hi\u1ec7n theo c\u1ea5p b\u1eadc, n\u01a1i m\u00e0 <code data-index-in-node=\"63\" data-path-to-node=\"9,1,0\">d1 : Ph\u00f2ng ban<\/code> (B\u00e1n h\u00e0ng) li\u00ean k\u1ebft xu\u1ed1ng m\u1ed9t th\u1ec3 hi\u1ec7n ph\u00f2ng ban con c\u0169ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ki\u1ec3u l\u00e0 Ph\u00f2ng ban (<code data-index-in-node=\"157\" data-path-to-node=\"9,1,0\">t\u00ean = B\u00e1n h\u00e0ng M\u1ef9<\/code>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,2,0\">Cu\u1ed1i c\u00f9ng, th\u1ec3 hi\u1ec7n c\u00e1 nh\u00e2n <code data-index-in-node=\"29\" data-path-to-node=\"9,2,0\">p<\/code> (Derek) \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi th\u1ec3 hi\u1ec7n ph\u00f2ng ban B\u00e1n h\u00e0ng M\u1ef9, \u0111\u1ed3ng th\u1eddi duy tr\u00ec m\u1ed9t li\u00ean k\u1ebft v\u1edbi m\u1ed9t th\u1ec3 hi\u1ec7n v\u00f4 danh <code data-index-in-node=\"142\" data-path-to-node=\"9,2,0\">: Th\u00f4ng tin Li\u00ean h\u1ec7<\/code> ch\u1ee9a \u0111\u1ecba ch\u1ec9 v\u1eadt l\u00fd c\u1ee7a anh \u1ea5y.<\/p>\n<\/li>\n<\/ul>\n<p id=\"dJfuSkC\"><img alt=\"\" class=\"alignnone size-full wp-image-18813\" decoding=\"async\" height=\"320\" loading=\"lazy\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfdd12817a.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfdd12817a.png 642w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfdd12817a-300x150.png 300w\" width=\"642\"\/><\/p>\n<p data-path-to-node=\"9,2,0\"><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\n<p>X\u00e1c minh c\u00e1c thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 l\u1edbp<\/p>\n<\/li>\n<li>\n<p>G\u1ee1 l\u1ed7i c\u00e1c m\u1ed1i quan h\u1ec7 \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p<\/p>\n<\/li>\n<li>\n<p>Minh h\u1ecda c\u00e1c tr\u1ea1ng th\u00e1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y v\u00ed d\u1ee5<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>\ud83d\udd36 S\u01a1 \u0111\u1ed3 H\u00e0nh vi<\/h2>\n<p>C\u00e1c s\u01a1 \u0111\u1ed3 h\u00e0nh vi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c kh\u00eda c\u1ea1nh \u0111\u1ed9ng\u2014c\u00e1ch h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng theo th\u1eddi gian.<\/p>\n<h3>7. S\u01a1 \u0111\u1ed3 Ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: M\u00f4 h\u00ecnh h\u00f3a quy tr\u00ecnh l\u00e0m vi\u1ec7c, quy tr\u00ecnh kinh doanh v\u00e0 logic thu\u1eadt to\u00e1n.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>H\u00e0nh \u0111\u1ed9ng (c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c n\u00fat \u0111i\u1ec1u khi\u1ec3n: kh\u1edfi \u0111\u1ea7u, quy\u1ebft \u0111\u1ecbnh, h\u1ee3p nh\u1ea5t, chia t\u00e1ch, g\u1ed9p, k\u1ebft th\u00fac<\/p>\n<\/li>\n<li>\n<p>C\u00e1c n\u00fat \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 c\u00e1c \u0111i\u1ec3m n\u1ed1i<\/p>\n<\/li>\n<li>\n<p>C\u00e1c ph\u00e2n v\u00f9ng (\u0111\u01b0\u1eddng b\u01a1i) \u0111\u1ec3 ph\u00e2n b\u1ed5 tr\u00e1ch nhi\u1ec7m<\/p>\n<\/li>\n<li>\n<p>B\u1ed9 x\u1eed l\u00fd ngo\u1ea1i l\u1ec7 v\u00e0 c\u00e1c v\u00f9ng c\u00f3 th\u1ec3 b\u1ecb ng\u1eaft<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>: Lu\u1ed3ng c\u00f4ng vi\u1ec7c x\u1eed l\u00fd \u0111\u01a1n h\u00e0ng<\/p>\n<h2 data-path-to-node=\"1\">T\u1ed5 ch\u1ee9c c\u1ea5u tr\u00fac (\u0111\u01b0\u1eddng b\u01a1i v\u00e0 c\u00e1c ph\u00e2n v\u00f9ng)<\/h2>\n<p data-path-to-node=\"2\">S\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo chi\u1ec1u d\u1ecdc th\u00e0nh c\u00e1c c\u1ed9t l\u1edbn, \u0111\u01b0\u1ee3c g\u1ecdi thay th\u1ebf cho nhau l\u00e0<b data-index-in-node=\"80\" data-path-to-node=\"2\">\u0110\u01b0\u1eddng b\u01a1i<\/b> ho\u1eb7c <b data-index-in-node=\"93\" data-path-to-node=\"2\">Ph\u00e2n v\u00f9ng<\/b>. Nh\u1eefng ranh gi\u1edbi n\u00e0y ph\u00e2n lo\u1ea1i tr\u00e1ch nhi\u1ec7m cho c\u00e1c h\u00e0nh \u0111\u1ed9ng n\u1eb1m b\u00ean trong ch\u00fang, li\u00ean k\u1ebft c\u00e1c b\u01b0\u1edbc v\u1edbi c\u00e1c vai tr\u00f2 ho\u1eb7c \u0111\u01a1n v\u1ecb kinh doanh c\u1ee5 th\u1ec3:<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">Giao di\u1ec7n b\u00e1n h\u00e0ng kh\u00e1ch h\u00e0ng:<\/b> Ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho v\u00f2ng \u0111\u1eddi ti\u1ebfp x\u00fac kh\u00e1ch h\u00e0ng, x\u1eed l\u00fd kh\u1edfi t\u1ea1o kh\u00e1ch h\u00e0ng, \u0111\u1ecbnh tuy\u1ebfn thay th\u1ebf v\u00e0 tr\u00ecnh b\u00e0y cu\u1ed1i c\u00f9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">Ng\u01b0\u1eddi s\u1edf h\u1eefu \u0111\u1ec1 xu\u1ea5t:<\/b> Qu\u1ea3n l\u00fd k\u1ebf ho\u1ea1ch c\u1ed1t l\u00f5i, ph\u00e2n t\u00edch ho\u1ea1t \u0111\u1ed9ng v\u00e0 bi\u00ean so\u1ea1n c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u \u0111\u1ec1 xu\u1ea5t ch\u00ednh th\u1ee9c.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,2,0\">Ng\u01b0\u1eddi s\u1edf h\u1eefu b\u00e1o gi\u00e1:<\/b> T\u1eadp trung ho\u00e0n to\u00e0n v\u00e0o \u0111\u1ecbnh gi\u00e1 t\u00e0i ch\u00ednh v\u00e0 chu\u1ea9n b\u1ecb c\u00e1c ch\u1ec9 s\u1ed1 b\u00e1o gi\u00e1 c\u1ee5 th\u1ec3.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 tr\u1ea1ng th\u00e1i h\u00e0nh \u0111\u1ed9ng<\/h2>\n<p data-path-to-node=\"5\">Th\u1ef1c thi theo t\u1eebng b\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111i\u1ec1u h\u01b0\u1edbng b\u1edfi c\u00e1c n\u00fat \u0111i\u1ec1u khi\u1ec3n v\u00e0 c\u00e1c con \u0111\u01b0\u1eddng h\u01b0\u1edbng d\u1eabn.<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,0,0\">N\u00fat kh\u1edfi \u0111\u1ea7u:<\/b> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng h\u00ecnh tr\u00f2n \u0111en \u0111\u1eadm \u1edf ph\u00eda tr\u00ean, \u0111i\u1ec1u n\u00e0y ch\u1ec9 ra \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u c\u1ee7a to\u00e0n b\u1ed9 lu\u1ed3ng c\u00f4ng vi\u1ec7c ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,1,0\">H\u00e0nh \u0111\u1ed9ng:<\/b> C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"38\" data-path-to-node=\"6,1,0\">Kh\u1edfi t\u1ea1o li\u00ean h\u1ec7<\/b>, <b data-index-in-node=\"58\" data-path-to-node=\"6,1,0\">T\u00ecm ki\u1ebfm thay th\u1ebf<\/b>, v\u00e0 <b data-index-in-node=\"82\" data-path-to-node=\"6,1,0\">Bi\u00ean so\u1ea1n th\u00f4ng tin b\u1ed5 sung<\/b>) \u0111\u1ea1i di\u1ec7n cho c\u00e1c b\u01b0\u1edbc ho\u1eb7c nhi\u1ec7m v\u1ee5 \u0111\u01a1n l\u1ebb, kh\u00f4ng th\u1ec3 ph\u00e2n t\u00edch th\u00eam trong chu\u1ed7i th\u1ef1c thi.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,2,0\">Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n:<\/b> Nh\u1eefng m\u0169i t\u00ean li\u1ec1n n\u00e9t k\u1ebft n\u1ed1i c\u00e1c th\u00e0nh ph\u1ea7n quy \u0111\u1ecbnh tr\u00ecnh t\u1ef1 ti\u1ebfn tri\u1ec3n c\u1ee7a lu\u1ed3ng c\u00f4ng vi\u1ec7c, cho bi\u1ebft ch\u00ednh x\u00e1c h\u00e0nh \u0111\u1ed9ng n\u00e0o ph\u1ea3i ho\u00e0n th\u00e0nh tr\u01b0\u1edbc khi h\u00e0nh \u0111\u1ed9ng ti\u1ebfp theo b\u1eaft \u0111\u1ea7u.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,3,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,3,0\">N\u00fat k\u1ebft th\u00fac ho\u1ea1t \u0111\u1ed9ng:<\/b> K\u00fd hi\u1ec7u h\u00ecnh v\u00f2ng tr\u00f2n ch\u00ednh gi\u1eefa (m\u1ed9t v\u00f2ng tr\u00f2n \u0111\u1eadm b\u00ean trong m\u1ed9t v\u00e0nh tr\u00f2n r\u1ed7ng) \u1edf ph\u00eda d\u01b0\u1edbi \u0111\u00e1nh d\u1ea5u \u0111i\u1ec3m k\u1ebft th\u00fac tuy\u1ec7t \u0111\u1ed1i c\u1ee7a to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh th\u1ef1c thi.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">\u0110i\u1ec1u h\u01b0\u1edbng v\u00e0 logic c\u00f3 \u0111i\u1ec1u ki\u1ec7n (N\u00fat quy\u1ebft \u0111\u1ecbnh)<\/h2>\n<p data-path-to-node=\"8\">C\u00e1c k\u00fd hi\u1ec7u h\u00ecnh thoi \u0111\u1ea1i di\u1ec7n cho<b data-index-in-node=\"33\" data-path-to-node=\"8\">N\u00fat quy\u1ebft \u0111\u1ecbnh<\/b>, m\u00f4 h\u00ecnh h\u00f3a nh\u00e1nh \u0111i\u1ec1u ki\u1ec7n trong lu\u1ed3ng c\u00f4ng vi\u1ec7c.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\">C\u00e1c lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea7u v\u00e0o \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u lu\u1ed3ng \u0111\u1ea7u ra lo\u1ea1i tr\u1eeb l\u1eabn nhau d\u1ef1a tr\u00ean c\u00e1c \u0111\u1ea7u v\u00e0o c\u1ee5 th\u1ec3.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\">C\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec1u khi\u1ec3n vi\u1ec7c ch\u1ecdn nh\u00e1nh n\u00e0o \u0111\u01b0\u1ee3c \u0111\u00f3ng trong d\u1ea5u ngo\u1eb7c vu\u00f4ng, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 (v\u00ed d\u1ee5 nh\u01b0<b data-index-in-node=\"114\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"114\" data-path-to-node=\"9,1,0\">[\u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn]<\/code><\/b>, <b data-index-in-node=\"126\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"126\" data-path-to-node=\"9,1,0\">[b\u1ecb t\u1eeb ch\u1ed1i]<\/code><\/b>, v\u00e0<b data-index-in-node=\"142\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"142\" data-path-to-node=\"9,1,0\">[k\u1ebft h\u1ee3p v\u1edbi nh\u00e0 cung c\u1ea5p kh\u00e1c ho\u1eb7c thay \u0111\u1ed5i y\u00eau c\u1ea7u]<\/code><\/b>). Qu\u00e1 tr\u00ecnh \u0111\u00e1nh gi\u00e1 c\u00e1c \u0111i\u1ec1u ki\u1ec7n n\u00e0y t\u1ea1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn th\u1ef1c thi theo \u0111\u01b0\u1eddng ch\u1ee9c n\u0103ng ph\u00f9 h\u1ee3p.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"10\">X\u1eed l\u00fd song song (N\u00fat chia v\u00e0 n\u00fat h\u1ee3p nh\u1ea5t)<\/h2>\n<p data-path-to-node=\"11\">C\u00e1c thanh \u0111en li\u1ec1n n\u00e9t trong s\u01a1 \u0111\u1ed3 \u0111\u00f3ng vai tr\u00f2 \u0111i\u1ec3m \u0111\u1ed3ng b\u1ed9 \u0111\u1ec3 qu\u1ea3n l\u00fd c\u00e1c lu\u1ed3ng th\u1ef1c thi \u0111\u1ed3ng th\u1eddi ho\u1eb7c song song.<\/p>\n<ul data-path-to-node=\"12\">\n<li>\n<p data-path-to-node=\"12,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"12,0,0\">N\u00fat chia (\u0111\u01b0\u1ee3c ghi nh\u00e3n l\u00e0 N\u00fat lu\u1ed3ng trong ch\u00fa th\u00edch s\u01a1 \u0111\u1ed3):<\/b> M\u1ed9t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea7u v\u00e0o duy nh\u1ea5t \u0111i v\u00e0o thanh v\u00e0 t\u00e1ch th\u00e0nh nhi\u1ec1u lu\u1ed3ng th\u1ef1c thi \u0111\u1ed9c l\u1eadp, \u0111\u1ed3ng th\u1eddi. \u1ede \u0111\u00e2y, sau khi t\u1ea1o k\u1ebf ho\u1ea1ch d\u1ef1 \u00e1n, qu\u00e1 tr\u00ecnh s\u1ebd chia \u0111\u1ec3 cho Ng\u01b0\u1eddi ch\u1ee7 \u0111\u1ec1 xu\u1ea5t th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch giao h\u00e0ng, trong khi Ng\u01b0\u1eddi ch\u1ee7 b\u00e1o gi\u00e1 \u0111\u1ed3ng th\u1eddi x\u1eed l\u00fd chu\u1ea9n b\u1ecb b\u00e1o gi\u00e1.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"12,1,0\">N\u00fat h\u1ee3p nh\u1ea5t:<\/b> M\u1ed9t thanh \u0111\u1ed3ng b\u1ed9 h\u1ee3p nh\u1ea5t nhi\u1ec1u lu\u1ed3ng \u0111\u1ed3ng th\u1eddi tr\u1edf l\u1ea1i th\u00e0nh m\u1ed9t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t. Qu\u00e1 tr\u00ecnh kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t qua n\u00fat h\u1ee3p nh\u1ea5t cho \u0111\u1ebfn khi<i data-index-in-node=\"153\" data-path-to-node=\"12,1,0\">t\u1ea5t c\u1ea3<\/i> c\u00e1c lu\u1ed3ng song song \u0111\u1ea7u v\u00e0o \u0111\u1ec1u \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn thanh th\u00e0nh c\u00f4ng, \u0111\u1ea3m b\u1ea3o vi\u1ec7c bi\u00ean so\u1ea1n b\u00e1o gi\u00e1 v\u00e0 so\u1ea1n th\u1ea3o \u0111\u1ec1 xu\u1ea5t \u0111\u01b0\u1ee3c ho\u00e0n t\u1ea5t ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh bi\u00ean so\u1ea1n g\u00f3i cu\u1ed1i c\u00f9ng.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"13\">T\u00edch h\u1ee3p d\u1eef li\u1ec7u (N\u00fat \u0111\u1ed1i t\u01b0\u1ee3ng)<\/h2>\n<p data-path-to-node=\"14\">C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt ti\u00eau chu\u1ea9n \u0111\u1ea1i di\u1ec7n cho<b data-index-in-node=\"28\" data-path-to-node=\"14\">N\u00fat \u0111\u1ed1i t\u01b0\u1ee3ng<\/b>, \u0111\u01b0a lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0o s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecbnh h\u01b0\u1edbng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<ul data-path-to-node=\"15\">\n<li>\n<p data-path-to-node=\"15,0,0\">C\u00e1c n\u00fat \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ea1i di\u1ec7n cho c\u00e1c th\u1ec3 hi\u1ec7n d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m v\u1eadt l\u00fd \u0111\u01b0\u1ee3c t\u1ea1o ra ho\u1eb7c ti\u00eau th\u1ee5 b\u1edfi c\u00e1c h\u00e0nh \u0111\u1ed9ng, s\u1eed d\u1ee5ng<code data-index-in-node=\"115\" data-path-to-node=\"15,0,0\">t\u00ean_th\u1ec3_hi\u1ec7n : T\u00ean_L\u1edbp<\/code> quy \u01b0\u1edbc (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"158\" data-path-to-node=\"15,0,0\"><code data-index-in-node=\"158\" data-path-to-node=\"15,0,0\">m\u1ed9t_\u0111\u1ec1_xu\u1ea5t : \u0110\u1ec1_xu\u1ea5t<\/code><\/b> v\u00e0 <b data-index-in-node=\"183\" data-path-to-node=\"15,0,0\"><code data-index-in-node=\"183\" data-path-to-node=\"15,0,0\">m\u1ed9t_k\u1ebf_ho\u1ea1ch : K\u1ebf_ho\u1ea1ch D\u1ef1_\u00e1n Giao_nh\u1eadn<\/code><\/b>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,1,0\">\u0110\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng <b data-index-in-node=\"18\" data-path-to-node=\"15,1,0\"><code data-index-in-node=\"18\" data-path-to-node=\"15,1,0\">t\u1ea1o<\/code><\/b>c\u00e1c m\u0169i t\u00ean cho th\u1ea5y ch\u00ednh x\u00e1c th\u1eddi \u0111i\u1ec3m m\u1ed9t h\u00e0nh \u0111\u1ed9ng kh\u1edfi t\u1ea1o ho\u1eb7c c\u1eadp nh\u1eadt m\u1ed9t c\u1ea5u tr\u00fac d\u1eef li\u1ec7u, minh h\u1ecda c\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb nhi\u1ec7m v\u1ee5 n\u00e0y sang nhi\u1ec7m v\u1ee5 kh\u00e1c song song v\u1edbi vi\u1ec7c th\u1ef1c thi ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Activity Diagram, UML Diagrams Example: Relationships between Activates and Business Entities - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/Activity-Diagram-Relationships-between-Activates-and-Business-Entities.png\"\/><\/p>\n<p><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c quy tr\u00ecnh kinh doanh<\/p>\n<\/li>\n<li>\n<p>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c th\u1ef1c hi\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p>\n<\/li>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh c\u00e1c thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>8. S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i (Statecharts)<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: M\u00f4 h\u00ecnh h\u00f3a v\u00f2ng \u0111\u1eddi v\u00e0 h\u00e0nh vi ph\u1ee5 thu\u1ed9c tr\u1ea1ng th\u00e1i c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>Tr\u1ea1ng th\u00e1i (h\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n v\u1edbi c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0o\/ra\/th\u1ef1c hi\u1ec7n)<\/p>\n<\/li>\n<li>\n<p>Chuy\u1ec3n ti\u1ebfp (k\u00edch ho\u1ea1t[\u0111i\u1ec1u ki\u1ec7n]\/h\u1ec7 qu\u1ea3)<\/p>\n<\/li>\n<li>\n<p>Tr\u1ea1ng th\u00e1i gi\u1ea3: ban \u0111\u1ea7u, l\u1ef1a ch\u1ecdn, chia t\u00e1ch, h\u1ee3p nh\u1ea5t, l\u1ecbch s\u1eed, k\u1ebft th\u00fac<\/p>\n<\/li>\n<li>\n<p>Tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh v\u00e0 c\u00e1c v\u00f9ng song song<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>: thi\u1ebft l\u1eadp \u0111i\u1ec7n tho\u1ea1i<\/p>\n<h2 data-path-to-node=\"1\">Tr\u1ea1ng th\u00e1i v\u00e0 \u0110i\u1ec1u ki\u1ec7n H\u1ec7 th\u1ed1ng<\/h2>\n<p data-path-to-node=\"2\">S\u01a1 \u0111\u1ed3 ghi l\u1ea1i h\u00e0nh vi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng\u2014c\u1ee5 th\u1ec3 l\u00e0 m\u1ed9t thi\u1ebft l\u1eadp \u0111i\u1ec7n tho\u1ea1i\u2014b\u1eb1ng c\u00e1ch m\u00f4 t\u1ea3 c\u00e1c t\u00ecnh hu\u1ed1ng ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n r\u1eddi r\u1ea1c kh\u00e1c nhau c\u1ee7a n\u00f3.<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">Tr\u1ea1ng th\u00e1i:<\/b> C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n \u0111\u1ea1i di\u1ec7n cho tr\u1ea1ng th\u00e1i (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"55\" data-path-to-node=\"3,0,0\">Ng\u01b0ng ho\u1ea1t \u0111\u1ed9ng<\/b>, <b data-index-in-node=\"61\" data-path-to-node=\"3,0,0\">T\u00edn hi\u1ec7u chu\u00f4ng<\/b>, <b data-index-in-node=\"71\" data-path-to-node=\"3,0,0\">\u0110ang quay s\u1ed1<\/b>, <b data-index-in-node=\"80\" data-path-to-node=\"3,0,0\">\u0110ang k\u1ebft n\u1ed1i<\/b>, v\u00e0 <b data-index-in-node=\"96\" data-path-to-node=\"3,0,0\">\u0110\u00e3 k\u1ebft n\u1ed1i<\/b>). M\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u1ea1i di\u1ec7n cho m\u1ed9t giai \u0111o\u1ea1n trong v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng trong \u0111\u00f3 n\u00f3 th\u1ecfa m\u00e3n m\u1ed9t \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh, th\u1ef1c hi\u1ec7n m\u1ed9t ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c ch\u1edd \u0111\u1ee3i m\u1ed9t s\u1ef1 ki\u1ec7n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">Tr\u1ea1ng th\u00e1i gi\u1ea3 kh\u1edfi \u0111\u1ea7u:<\/b> V\u00f2ng tr\u00f2n \u0111en \u0111\u1eadm \u1edf b\u00ean tr\u00e1i \u0111\u1ea1i di\u1ec7n cho \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u1ee7a m\u00e1y tr\u1ea1ng th\u00e1i. \u0110\u00e2y l\u00e0 m\u1ed9t tr\u1ea1ng th\u00e1i gi\u1ea3 ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u1ea1ng th\u00e1i th\u1ef1c s\u1ef1, ch\u1ec9 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t con tr\u1ecf \u0111\u1ebfn tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng m\u1eb7c \u0111\u1ecbnh khi \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o (<b data-index-in-node=\"249\" data-path-to-node=\"3,1,0\">\u0110ang ch\u1edd<\/b>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,2,0\">Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac:<\/b> K\u00fd hi\u1ec7u v\u00f2ng tr\u00f2n ch\u00ednh gi\u1eefa \u1edf b\u00ean ph\u1ea3i \u0111\u1ea1i di\u1ec7n cho vi\u1ec7c k\u1ebft th\u00fac th\u1ef1c thi c\u1ee7a m\u00e1y tr\u1ea1ng th\u00e1i, cho th\u1ea5y \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00e3 ho\u00e0n th\u00e0nh v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">Chuy\u1ec3n ti\u1ebfp v\u00e0 \u0111\u1ecbnh tuy\u1ebfn d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n<\/h2>\n<p data-path-to-node=\"5\">C\u00e1c \u0111\u01b0\u1eddng c\u00f3 h\u01b0\u1edbng k\u1ebft n\u1ed1i c\u00e1c tr\u1ea1ng th\u00e1i l\u00e0 <b data-index-in-node=\"45\" data-path-to-node=\"5\">Chuy\u1ec3n ti\u1ebfp<\/b>, \u0111\u1ea1i di\u1ec7n cho s\u1ef1 di chuy\u1ec3n t\u1eeb m\u1ed9t tr\u1ea1ng th\u00e1i sang tr\u1ea1ng th\u00e1i kh\u00e1c nh\u01b0 ph\u1ea3n \u1ee9ng v\u1edbi m\u1ed9t t\u00edn hi\u1ec7u c\u1ee5 th\u1ec3.<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,0,0\">Chuy\u1ec3n ti\u1ebfp ti\u00eau chu\u1ea9n:<\/b> \u0110\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi c\u00e1c s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u00e0nh \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c ph\u1ea3n h\u1ed3i c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u01b0\u1ee3c ghi d\u1ecdc theo c\u00e1c \u0111\u01b0\u1eddng. V\u00ed d\u1ee5, chuy\u1ec3n t\u1eeb <b data-index-in-node=\"142\" data-path-to-node=\"6,0,0\">\u0110ang ch\u1edd<\/b> sang <b data-index-in-node=\"150\" data-path-to-node=\"6,0,0\">T\u00edn hi\u1ec7u chu\u00f4ng<\/b> x\u1ea3y ra khi s\u1ef1 ki\u1ec7n <b data-index-in-node=\"175\" data-path-to-node=\"6,0,0\"><code data-index-in-node=\"175\" data-path-to-node=\"6,0,0\">onHook<\/code><\/b> \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, v\u00e0 chuy\u1ec3n t\u1eeb <b data-index-in-node=\"218\" data-path-to-node=\"6,0,0\">T\u00edn hi\u1ec7u chu\u00f4ng<\/b> sang <b data-index-in-node=\"230\" data-path-to-node=\"6,0,0\">\u0110ang quay s\u1ed1<\/b> x\u1ea3y ra khi m\u1ed9t <b data-index-in-node=\"253\" data-path-to-node=\"6,0,0\"><code data-index-in-node=\"253\" data-path-to-node=\"6,0,0\">ch\u1eef s\u1ed1(n)<\/code><\/b> s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c nh\u1eadn.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,1,0\">Chuy\u1ec3n ti\u1ebfp t\u1ef1 th\u00e2n:<\/b> M\u1ed9t m\u0169i t\u00ean chuy\u1ec3n ti\u1ebfp \u0111i ra kh\u1ecfi m\u1ed9t tr\u1ea1ng th\u00e1i v\u00e0 quay tr\u1edf l\u1ea1i ch\u00ednh tr\u1ea1ng th\u00e1i \u0111\u00f3 (nh\u01b0 \u0111\u01b0\u1ee3c th\u1ea5y tr\u00ean tr\u1ea1ng th\u00e1i <b data-index-in-node=\"119\" data-path-to-node=\"6,1,0\">\u0110ang g\u1ecdi<\/b> v\u1edbi s\u1ef1 ki\u1ec7n <b data-index-in-node=\"142\" data-path-to-node=\"6,1,0\"><code data-index-in-node=\"142\" data-path-to-node=\"6,1,0\">ch\u1eef s\u1ed1(n)<\/code><\/b> \u0111i\u1ec1u n\u00e0y cho th\u1ea5y s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 c\u1eadp nh\u1eadt ng\u1eef c\u1ea3nh tr\u1ea1ng th\u00e1i n\u1ed9i b\u1ed9 (v\u00ed d\u1ee5: ghi l\u1ea1i m\u1ed9t ch\u1eef s\u1ed1 v\u1eeba \u0111\u01b0\u1ee3c g\u1ecdi) m\u00e0 kh\u00f4ng khi\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng tho\u00e1t ra ho\u1eb7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i v\u1eadn h\u00e0nh t\u1ed5ng th\u1ec3 c\u1ee7a n\u00f3.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">C\u00e1c \u0111\u01b0\u1eddng \u0111i thay th\u1ebf v\u00e0 x\u1eed l\u00fd l\u1ed7i<\/h2>\n<p data-path-to-node=\"8\">C\u00e1c m\u00e1y tr\u1ea1ng th\u00e1i xu\u1ea5t s\u1eafc trong vi\u1ec7c th\u1ec3 hi\u1ec7n logic h\u00e0nh vi v\u00e0 nh\u00e1nh l\u1ed7i d\u1ef1a tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau trong qu\u00e1 tr\u00ecnh th\u1ef1c thi.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,0,0\">\u0110\u01b0\u1eddng \u0111i th\u1ef1c thi th\u00e0nh c\u00f4ng:<\/b> \u0110\u01b0\u1eddng \u1ed1ng ngang trung t\u00e2m ph\u00e1c h\u1ecda con \u0111\u01b0\u1eddng t\u1ed1i \u01b0u: <b data-index-in-node=\"86\" data-path-to-node=\"9,0,0\">\u0110ang ch\u1edd<\/b> <span class=\"math-inline\" data-index-in-node=\"91\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"103\" data-path-to-node=\"9,0,0\">T\u00edn hi\u1ec7u g\u1ecdi<\/b> <span class=\"math-inline\" data-index-in-node=\"112\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"124\" data-path-to-node=\"9,0,0\">\u0110ang g\u1ecdi<\/b> <span class=\"math-inline\" data-index-in-node=\"132\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"144\" data-path-to-node=\"9,0,0\">\u0110ang k\u1ebft n\u1ed1i<\/b> <span class=\"math-inline\" data-index-in-node=\"155\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"167\" data-path-to-node=\"9,0,0\">\u0110ang reo chu\u00f4ng<\/b> <span class=\"math-inline\" data-index-in-node=\"175\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"187\" data-path-to-node=\"9,0,0\">\u0110\u00e3 k\u1ebft n\u1ed1i<\/b> <span class=\"math-inline\" data-index-in-node=\"197\" data-math=\"rightarrow\">$rightarrow$<\/span> <b data-index-in-node=\"209\" data-path-to-node=\"9,0,0\">\u0110\u00e3 ng\u1eaft k\u1ebft n\u1ed1i<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,1,0\">C\u00e1c tr\u1ea1ng th\u00e1i x\u1eed l\u00fd ngo\u1ea1i l\u1ec7 v\u00e0 l\u1ed7i:<\/b> H\u1ec7 th\u1ed1ng x\u1eed l\u00fd c\u00e1c l\u1ed7i ho\u1eb7c \u0111\u1ed9 tr\u1ec5 b\u1eb1ng c\u00e1ch nh\u00e1nh sang c\u00e1c tr\u1ea1ng th\u00e1i x\u1eed l\u00fd chuy\u00ean bi\u1ec7t. N\u1ebfu s\u1ed1 \u0111i\u1ec7n tho\u1ea1i b\u1eadn trong qu\u00e1 tr\u00ecnh k\u1ebft n\u1ed1i, h\u1ec7 th\u1ed1ng s\u1ebd k\u00edch ho\u1ea1t tr\u1ea1ng th\u00e1i <b data-index-in-node=\"188\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"188\" data-path-to-node=\"9,1,0\">s\u1ed1 b\u1eadn<\/code><\/b> chuy\u1ec3n \u0111\u1ed5i \u0111\u1ec3 v\u00e0o tr\u1ea1ng th\u00e1i <b data-index-in-node=\"223\" data-path-to-node=\"9,1,0\">B\u1eadnTone<\/b> tr\u1ea1ng th\u00e1i. N\u1ebfu ng\u01b0\u1eddi d\u00f9ng t\u1ea1m d\u1eebng qu\u00e1 l\u00e2u khi \u0111ang b\u1ea5m s\u1ed1, m\u1ed9t <b data-index-in-node=\"282\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"282\" data-path-to-node=\"9,1,0\">h\u1ebft gi\u1edd<\/code><\/b> s\u1ef1 ki\u1ec7n chuy\u1ec3n h\u1ec7 th\u1ed1ng sang tr\u1ea1ng th\u00e1i <b data-index-in-node=\"321\" data-path-to-node=\"9,1,0\">C\u1ea3nh b\u00e1o<\/b> ho\u1eb7c <b data-index-in-node=\"332\" data-path-to-node=\"9,1,0\">H\u1ebft gi\u1edd<\/b> tr\u1ea1ng th\u00e1i. N\u1ebfu ph\u00e1t hi\u1ec7n chu\u1ed7i sai, m\u1ed9t <b data-index-in-node=\"388\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"388\" data-path-to-node=\"9,1,0\">s\u1ed1Invalid<\/code><\/b> s\u1ef1 ki\u1ec7n chuy\u1ec3n h\u1ec7 th\u1ed1ng sang tr\u1ea1ng th\u00e1i <b data-index-in-node=\"433\" data-path-to-node=\"9,1,0\">Tin nh\u1eafn \u0111\u00e3 ghi<\/b> tr\u1ea1ng th\u00e1i, \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng x\u1eed l\u00fd an to\u00e0n m\u1ecdi t\u00ecnh hu\u1ed1ng \u0111\u1eb7c bi\u1ec7t trong th\u1ebf gi\u1edbi th\u1ef1c.<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"State Diagram - A Quick Tutorial - Visual Paradigm Blog\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/State-Machine-Diagram-Phone.png\"\/><\/p>\n<p>\u00a0<\/p>\n<p><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\n<p>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang ho\u1eb7c tri\u1ec3n khai giao th\u1ee9c<\/p>\n<\/li>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/p>\n<\/li>\n<li>\n<p>T\u00e0i li\u1ec7u v\u1ec1 c\u00e1c quy t\u1eafc v\u00f2ng \u0111\u1eddi \u0111\u1ed1i t\u01b0\u1ee3ng<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>9. S\u01a1 \u0111\u1ed3 T\u01b0\u01a1ng t\u00e1c<\/h3>\n<p>B\u1ed1n lo\u1ea1i s\u01a1 \u0111\u1ed3 nh\u1ea5n m\u1ea1nh c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a s\u1ef1 h\u1ee3p t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng:<\/p>\n<h4>a) S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1\u00a0<em>(Th\u01b0\u1eddng g\u1eb7p nh\u1ea5t)<\/em><\/h4>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Hi\u1ec3n th\u1ecb c\u00e1c cu\u1ed9c trao \u0111\u1ed5i tin nh\u1eafn theo th\u1ee9 t\u1ef1 th\u1eddi gian gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>\u0110\u01b0\u1eddng \u0111\u1eddi (\u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t \u0111\u1ee9ng)<\/p>\n<\/li>\n<li>\n<p>Tin nh\u1eafn (m\u0169i t\u00ean li\u1ec1n\/n\u00e9t \u0111\u1ee9t c\u00f3 nh\u00e3n)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c l\u1ea7n th\u1ef1c thi (thanh k\u00edch ho\u1ea1t)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c m\u1ea3nh k\u1ebft h\u1ee3p:\u00a0<code data-backticks=\"1\">alt<\/code>,\u00a0<code data-backticks=\"1\">opt<\/code>,\u00a0<code data-backticks=\"1\">loop<\/code>,\u00a0<code data-backticks=\"1\">par<\/code>,\u00a0<code data-backticks=\"1\">break<\/code><\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<h2 data-path-to-node=\"1\">C\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng v\u00e0 ng\u1eef c\u1ea3nh th\u1ef1c thi<\/h2>\n<p data-path-to-node=\"2\">S\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c \u0111\u1ecdc t\u1eeb tr\u00e1i sang ph\u1ea3i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00e0nh vi\u00ean tham gia, v\u00e0 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi \u0111\u1ec3 bi\u1ec3u th\u1ecb s\u1ef1 tr\u00f4i ch\u1ea3y c\u1ee7a th\u1eddi gian.<\/p>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,0,0\">C\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng:<\/b> C\u00e1c h\u1ed9p \u1edf \u0111\u1ea7u tr\u00ean \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u1ecdc \u0111\u1ee9t \u0111o\u1ea1n \u0111\u1ea1i di\u1ec7n cho c\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng. Ch\u00fang m\u00f4 h\u00ecnh h\u00f3a c\u00e1c th\u00e0nh vi\u00ean ri\u00eang l\u1ebb trong t\u01b0\u01a1ng t\u00e1c, tu\u00e2n theo quy \u01b0\u1edbc <code data-index-in-node=\"156\" data-path-to-node=\"3,0,0\">t\u00eanTh\u1ec3Hi\u1ec7n : T\u00eanL\u1edbp<\/code> quy \u01b0\u1edbc (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"199\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"199\" data-path-to-node=\"3,0,0\">window : UI<\/code><\/b>, <b data-index-in-node=\"212\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"212\" data-path-to-node=\"3,0,0\">aChain : HotelChain<\/code><\/b>, v\u00e0 <b data-index-in-node=\"237\" data-path-to-node=\"3,0,0\"><code data-index-in-node=\"237\" data-path-to-node=\"3,0,0\">aHotel : Hotel<\/code><\/b>). \u0110\u01b0\u1eddng \u0111\u1ee9t \u0111o\u1ea1n theo d\u00f5i s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a th\u00e0nh vi\u00ean \u0111\u00f3 trong su\u1ed1t chu\u1ed7i s\u1ef1 ki\u1ec7n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,1,0\">C\u00e1c thanh k\u00edch ho\u1ea1t:<\/b> C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt d\u1ecdc m\u1ecfng, c\u00f3 m\u00e0u n\u1eb1m tr\u00ean c\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng cho th\u1ea5y m\u1ed9t <b data-index-in-node=\"99\" data-path-to-node=\"3,1,0\">K\u00edch ho\u1ea1t<\/b> (ho\u1eb7c s\u1ef1 ki\u1ec7n th\u1ef1c thi). C\u00e1c thanh n\u00e0y cho th\u1ea5y ch\u00ednh x\u00e1c khi n\u00e0o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang th\u1ef1c thi m\u1ed9t thao t\u00e1c ho\u1eb7c \u0111ang ch\u1edd m\u1ed9t l\u1eddi g\u1ecdi con l\u1ed3ng gh\u00e9p tr\u1ea3 v\u1ec1.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"3,2,0\">D\u1eebng:<\/b> K\u00fd hi\u1ec7u \u201cX\u201d l\u1edbn \u1edf ph\u00eda d\u01b0\u1edbi c\u1ee7a <code data-index-in-node=\"51\" data-path-to-node=\"3,2,0\">window : UI<\/code> \u0111\u01b0\u1eddng s\u1ed1ng bi\u1ec3u th\u1ecb s\u1ef1 ph\u00e1 h\u1ee7y ho\u1eb7c k\u1ebft th\u00fac, cho th\u1ea5y v\u00f2ng \u0111\u1eddi c\u1ee7a ng\u01b0\u1eddi tham gia c\u1ee5 th\u1ec3 n\u00e0y \u0111\u00e3 k\u1ebft th\u00fac v\u00e0 c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"4\">C\u00e1c lo\u1ea1i tin nh\u1eafn v\u00e0 giao ti\u1ebfp<\/h2>\n<p data-path-to-node=\"5\">Giao ti\u1ebfp gi\u1eefa c\u00e1c ng\u01b0\u1eddi tham gia \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a b\u1eb1ng c\u00e1c m\u0169i t\u00ean ngang \u0111\u1ea1i di\u1ec7n cho c\u00e1c tin nh\u1eafn, \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 tu\u1ea7n t\u1ef1 b\u1eb1ng h\u1ec7 th\u1ed1ng \u0111\u00e1nh s\u1ed1 ph\u00e2n c\u1ea5p (v\u00ed d\u1ee5: 1, 1.1, 1.1.1).<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,0,0\">Tin nh\u1eafn \u0111\u1ed3ng b\u1ed9:<\/b> C\u00e1c \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean li\u1ec1n (nh\u01b0 <b data-index-in-node=\"62\" data-path-to-node=\"6,0,0\"><code data-index-in-node=\"62\" data-path-to-node=\"6,0,0\">1: makeReservation<\/code><\/b> v\u00e0 <b data-index-in-node=\"85\" data-path-to-node=\"6,0,0\"><code data-index-in-node=\"85\" data-path-to-node=\"6,0,0\">1.1: makeReservation<\/code><\/b>) cho th\u1ea5y c\u00e1c cu\u1ed9c g\u1ecdi \u0111\u1ed3ng b\u1ed9. Ng\u01b0\u1eddi g\u1eedi s\u1ebd t\u1ea1m d\u1eebng th\u1ef1c thi v\u00e0 ch\u1edd \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn ho\u00e0n t\u1ea5t x\u1eed l\u00fd.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,1,0\">Tin nh\u1eafn t\u1ef1 th\u00e2n:<\/b> M\u1ed9t v\u00f2ng l\u1eb7p tin nh\u1eafn b\u1eaft \u0111\u1ea7u v\u00e0 k\u1ebft th\u00fac tr\u00ean c\u00f9ng m\u1ed9t thanh k\u00edch ho\u1ea1t (v\u00ed d\u1ee5 nh\u01b0 <b data-index-in-node=\"87\" data-path-to-node=\"6,1,0\"><code data-index-in-node=\"87\" data-path-to-node=\"6,1,0\">1.1.1: available(roomId, date): isRoom<\/code><\/b> \u0111\u01b0\u1ee3c th\u1ef1c thi b\u1edfi <code data-index-in-node=\"138\" data-path-to-node=\"6,1,0\">aHotel<\/code>) \u0111\u1ea1i di\u1ec7n cho m\u1ed9t <b data-index-in-node=\"159\" data-path-to-node=\"6,1,0\">Tin nh\u1eafn t\u1ef1 th\u00e2n<\/b>. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ed9t th\u1ef1c thi ph\u01b0\u01a1ng th\u1ee9c n\u1ed9i b\u1ed9, n\u01a1i m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng g\u1ecdi m\u1ed9t trong c\u00e1c thao t\u00e1c c\u1ee7a ch\u00ednh n\u00f3.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\"><b data-index-in-node=\"0\" data-path-to-node=\"6,2,0\">Tin nh\u1eafn t\u1ea1o:<\/b> M\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean h\u1edf ch\u1ec9 th\u1eb3ng v\u00e0o h\u1ed9p \u0111\u1ed1i t\u01b0\u1ee3ng (v\u00ed d\u1ee5 nh\u01b0 tin nh\u1eafn <b data-index-in-node=\"106\" data-path-to-node=\"6,2,0\"><code data-index-in-node=\"106\" data-path-to-node=\"6,2,0\">1.1.2:<\/code><\/b> ch\u1ec9 \u0111\u1ebfn <b data-index-in-node=\"125\" data-path-to-node=\"6,2,0\"><code data-index-in-node=\"125\" data-path-to-node=\"6,2,0\">aReservation : Reservation<\/code><\/b>) \u0111\u1ea1i di\u1ec7n cho vi\u1ec7c t\u1ea1o \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y r\u1eb1ng \u0111\u1ed1i t\u01b0\u1ee3ng <code data-index-in-node=\"201\" data-path-to-node=\"6,2,0\">aHotel<\/code> \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o \u0111\u1ed9ng th\u00e0nh \u0111\u1ed1i t\u01b0\u1ee3ng <code data-index-in-node=\"246\" data-path-to-node=\"6,2,0\">aReservation<\/code> v\u00e0o ch\u00ednh th\u1eddi \u0111i\u1ec3m \u0111\u00f3 trong chu\u1ed7i th\u1eddi gian ch\u1ea1y.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">C\u00e1c m\u1ea3nh k\u1ebft h\u1ee3p v\u00e0 lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n<\/h2>\n<p data-path-to-node=\"8\">C\u00e1c h\u1ed9p ch\u1eef nh\u1eadt l\u1edbn bao quanh c\u00e1c ph\u1ea7n c\u1ee7a chu\u1ed7i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <b data-index-in-node=\"65\" data-path-to-node=\"8\">C\u00e1c m\u1ea3nh k\u1ebft h\u1ee3p<\/b>, s\u1eed d\u1ee5ng c\u00e1c to\u00e1n t\u1eed t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 qu\u1ea3n l\u00fd logic ph\u1ee9c t\u1ea1p, nh\u00e1nh \u0111i\u1ec1u ki\u1ec7n v\u00e0 l\u1eb7p l\u1ea1i.<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,0,0\">M\u1ea3nh v\u00f2ng l\u1eb7p:<\/b>H\u1ed9p ngo\u00e0i \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n l\u00e0<b data-index-in-node=\"37\" data-path-to-node=\"9,0,0\"><code data-index-in-node=\"37\" data-path-to-node=\"9,0,0\">v\u00f2ng l\u1eb7p<\/code><\/b>v\u1edbi \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<b data-index-in-node=\"67\" data-path-to-node=\"9,0,0\"><code data-index-in-node=\"67\" data-path-to-node=\"9,0,0\">[m\u1ed7i ng\u00e0y]<\/code><\/b>\u0111\u1ea1i di\u1ec7n cho vi\u1ec7c l\u1eb7p l\u1ea1i. T\u1ea5t c\u1ea3 c\u00e1c t\u01b0\u01a1ng t\u00e1c n\u1eb1m b\u00ean trong h\u1ed9p n\u00e0y s\u1ebd l\u1eb7p l\u1ea1i li\u00ean t\u1ee5c cho m\u1ed7i ng\u00e0y \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong y\u00eau c\u1ea7u \u0111\u1eb7t ph\u00f2ng.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-index-in-node=\"0\" data-path-to-node=\"9,1,0\">M\u1ea3nh k\u1ebft h\u1ee3p thay th\u1ebf (Alt):<\/b>N\u1eb1m b\u00ean trong v\u00f2ng l\u1eb7p l\u00e0 m\u1ed9t<b data-index-in-node=\"68\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"68\" data-path-to-node=\"9,1,0\">alt<\/code><\/b>m\u1ea3nh (\u0111\u01b0\u1ee3c ch\u00fa th\u00edch l\u00e0 \u201cN\u1ebfu\u201d trong ch\u00fa th\u00edch s\u01a1 \u0111\u1ed3), x\u1eed l\u00fd nh\u00e1nh \u0111i\u1ec1u ki\u1ec7n. N\u00f3 \u0111\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<b data-index-in-node=\"195\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"195\" data-path-to-node=\"9,1,0\">[isRoom = true]<\/code><\/b>. N\u1ebfu \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n, chu\u1ed7i s\u1ebd th\u1ef1c thi \u0111\u01b0\u1eddng \u0111i c\u1ee5 th\u1ec3 b\u00ean trong kh\u1ed1i \u0111\u00f3\u2014t\u1ea1o ra \u0111\u1ed1i t\u01b0\u1ee3ng<code data-index-in-node=\"308\" data-path-to-node=\"9,1,0\">aReservation<\/code>v\u00e0 sau \u0111\u00f3 k\u00edch ho\u1ea1t tin nh\u1eafn<b data-index-in-node=\"366\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"366\" data-path-to-node=\"9,1,0\">2:<\/code><\/b>\u0111\u1ec3 kh\u1edfi t\u1ea1o<b data-index-in-node=\"384\" data-path-to-node=\"9,1,0\"><code data-index-in-node=\"384\" data-path-to-node=\"9,1,0\">aNotice : X\u00e1c nh\u1eadn<\/code><\/b>. N\u1ebfu \u0111i\u1ec1u ki\u1ec7n l\u00e0 sai, m\u1ed9t \u0111\u01b0\u1eddng \u0111i thay th\u1ebf (ho\u1eb7c kh\u00f4ng th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng n\u00e0o) s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n<p id=\"dbSjLVX\"><img alt=\"\" class=\"alignnone size-full wp-image-18812\" decoding=\"async\" height=\"528\" loading=\"lazy\" sizes=\"auto, (max-width: 1010px) 100vw, 1010px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfc7e45ebb.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfc7e45ebb.png 1010w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfc7e45ebb-300x157.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/img_6a0bfc7e45ebb-768x401.png 768w\" width=\"1010\"\/><\/p>\n<\/li>\n<\/ul>\n<h4>b) S\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/h4>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Nh\u1ea5n m\u1ea1nh m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng h\u01a1n l\u00e0 th\u1eddi gian truy\u1ec1n tin nh\u1eafn.<\/p>\n<p><img alt=\"What is Communication Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/03-communication-diagram-example-hotel-reservation.png\"\/><\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 n\u00fat<\/p>\n<\/li>\n<li>\n<p>C\u00e1c li\u00ean k\u1ebft v\u1edbi tin nh\u1eafn \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 v\u00e0 c\u00f3 h\u01b0\u1edbng<\/p>\n<\/li>\n<li>\n<p>T\u1eadp trung v\u00e0o \u201cai n\u00f3i chuy\u1ec7n v\u1edbi ai\u201d<\/p>\n<\/li>\n<\/ul>\n<h4>c) S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/h4>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n c\u1ea5p cao s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p><img alt=\"Interaction Overview Diagram Example\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/02-interaction-overview-diagram-example.png\"\/><\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c l\u1ea7n t\u01b0\u01a1ng t\u00e1c nh\u01b0 c\u00e1c n\u00fat ho\u1ea1t \u0111\u1ed9ng<\/p>\n<\/li>\n<li>\n<p>Quy\u1ebft \u0111\u1ecbnh\/gh\u00e9p n\u1ed1i cho nh\u00e1nh<\/p>\n<\/li>\n<li>\n<p>T\u00e1ch\/gh\u00e9p n\u1ed1i cho t\u00ednh song song<\/p>\n<\/li>\n<\/ul>\n<h4>d) S\u01a1 \u0111\u1ed3 th\u1eddi gian<\/h4>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: M\u00f4 h\u00ecnh h\u00f3a c\u00e1c r\u00e0ng bu\u1ed9c th\u1eddi gian ch\u00ednh x\u00e1c (c\u00e1c h\u1ec7 th\u1ed1ng th\u1eddi gian th\u1ef1c).<\/p>\n<p><img alt=\"What is Timing Diagram?\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/02-timing-diagram-example.png\"\/><\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c d\u00f2ng th\u1eddi gian tr\u1ea1ng th\u00e1i cho t\u1eebng lu\u1ed3ng s\u1ed1ng<\/p>\n<\/li>\n<li>\n<p>Thang th\u1eddi gian v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c<\/p>\n<\/li>\n<li>\n<p>C\u00e1c m\u0169i t\u00ean tin nh\u1eafn c\u00f3 d\u1ea5u hi\u1ec7u th\u1eddi gian<\/p>\n<\/li>\n<\/ul>\n<p><strong>Khi n\u00e0o s\u1eed d\u1ee5ng c\u00e1c t\u01b0\u01a1ng t\u00e1c<\/strong>:<\/p>\n<ul>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh c\u00e1c th\u1ef1c hi\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p>\n<\/li>\n<li>\n<p>G\u1ee1 l\u1ed7i c\u00e1c lu\u1ed3ng tin nh\u1eafn ph\u1ee9c t\u1ea1p<\/p>\n<\/li>\n<li>\n<p>T\u00e0i li\u1ec7u h\u00f3a c\u00e1c m\u1eabu s\u1eed d\u1ee5ng API<\/p>\n<\/li>\n<li>\n<p>M\u00f4 h\u00ecnh h\u00f3a th\u1eddi gian giao th\u1ee9c th\u1eddi gian th\u1ef1c<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h3>10. S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p><strong>M\u1ee5c \u0111\u00edch<\/strong>: Ghi nh\u1eadn c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng t\u1eeb g\u00f3c nh\u00ecn c\u1ee7a m\u1ed9t t\u00e1c nh\u00e2n b\u00ean ngo\u00e0i.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh<\/strong>:<\/p>\n<ul>\n<li>\n<p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng (h\u00ecnh elip ho\u1eb7c h\u00ecnh ch\u1eef nh\u1eadt ph\u00e2n lo\u1ea1i)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c t\u00e1c nh\u00e2n (h\u00ecnh ng\u01b0\u1eddi que ho\u1eb7c ph\u00e2n lo\u1ea1i)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c m\u1ed1i li\u00ean k\u1ebft (t\u00e1c nh\u00e2n \u2194 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng)<\/p>\n<\/li>\n<li>\n<p>C\u00e1c m\u1ed1i quan h\u1ec7:\u00a0<code data-backticks=\"1\">\u00abinclude\u00bb<\/code>,\u00a0<code data-backticks=\"1\">\u00abm\u1edf r\u1ed9ng\u00bb<\/code>, t\u1ed5ng qu\u00e1t h\u00f3a<\/p>\n<\/li>\n<li>\n<p>H\u1ed9p gi\u1edbi h\u1ea1n h\u1ec7 th\u1ed1ng<\/p>\n<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng<\/strong>: H\u1ec7 th\u1ed1ng ATM<\/p>\n<p><img alt=\"A Comprehensive Guide to Use Case Modeling - Visual Paradigm Guides\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/05\/Use-Case-Diagram-Website-_-Structuring-use-cases-with-extend-and-include-use-case-1.png\"\/><\/p>\n<p><strong>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/strong>:<\/p>\n<ul>\n<li>\n<p>Thu th\u1eadp y\u00eau c\u1ea7u t\u1eeb c\u00e1c b\u00ean li\u00ean quan<\/p>\n<\/li>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi v\u00e0 gi\u1edbi h\u1ea1n h\u1ec7 th\u1ed1ng<\/p>\n<\/li>\n<li>\n<p>L\u00ean k\u1ebf ho\u1ea1ch c\u00e1c t\u00ecnh hu\u1ed1ng ki\u1ec3m th\u1eed<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>\ud83c\udfaf Ch\u1ecdn s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p: H\u01b0\u1edbng d\u1eabn quy\u1ebft \u0111\u1ecbnh<\/h2>\n<table>\n<thead>\n<tr>\n<th>M\u1ee5c ti\u00eau<\/th>\n<th>S\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac l\u1edbp<\/td>\n<td>L\u1edbp, \u0110\u1ed1i t\u01b0\u1ee3ng, G\u00f3i<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4 h\u00ecnh h\u00f3a t\u01b0\u01a1ng t\u00e1c t\u1ea1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y<\/td>\n<td>D\u00e3y, Giao ti\u1ebfp<\/td>\n<\/tr>\n<tr>\n<td>T\u00e0i li\u1ec7u h\u00f3a quy tr\u00ecnh nghi\u1ec7p v\u1ee5<\/td>\n<td>Ho\u1ea1t \u0111\u1ed9ng, Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/td>\n<\/tr>\n<tr>\n<td>X\u00e1c \u0111\u1ecbnh v\u00f2ng \u0111\u1eddi \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n<td>M\u00e1y tr\u1ea1ng th\u00e1i<\/td>\n<\/tr>\n<tr>\n<td>L\u00ean k\u1ebf ho\u1ea1ch tri\u1ec3n khai h\u1ec7 th\u1ed1ng<\/td>\n<td>Tri\u1ec3n khai, Th\u00e0nh ph\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4 h\u00ecnh h\u00f3a c\u00e1c m\u1eabu n\u1ed9i b\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td>C\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh<\/td>\n<\/tr>\n<tr>\n<td>Ghi l\u1ea1i c\u00e1c r\u00e0ng bu\u1ed9c th\u1eddi gian th\u1ef1c<\/td>\n<td>S\u01a1 \u0111\u1ed3 th\u1eddi gian<\/td>\n<\/tr>\n<tr>\n<td>X\u00e1c \u0111\u1ecbnh y\u00eau c\u1ea7u<\/td>\n<td>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, Ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr\/>\n<h2>\ud83d\udd11 C\u00e1c nguy\u00ean t\u1eafc m\u00f4 h\u00ecnh h\u00f3a ch\u00ednh<\/h2>\n<ol>\n<li>\n<p><strong>B\u1eaft \u0111\u1ea7u \u0111\u01a1n gi\u1ea3n<\/strong>: B\u1eaft \u0111\u1ea7u v\u1edbi lo\u1ea1i s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi m\u1ee5c ti\u00eau ngay l\u1eadp t\u1ee9c c\u1ee7a b\u1ea1n.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1eb7p l\u1ea1i<\/strong>: Tinh ch\u1ec9nh m\u00f4 h\u00ecnh khi hi\u1ec3u bi\u1ebft \u0111\u01b0\u1ee3c s\u00e2u s\u1eafc h\u01a1n\u2014kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3 n\u00e0o l\u00e0 \u201ccu\u1ed1i c\u00f9ng\u201d ngay t\u1eeb b\u1ea3n nh\u00e1p \u0111\u1ea7u ti\u00ean.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi \u0111\u1ecdc quan tr\u1ecdng<\/strong>: \u0110i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111\u1ed9 chi ti\u1ebft ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi \u0111\u1ecdc (l\u1eadp tr\u00ecnh vi\u00ean so v\u1edbi c\u00e1c b\u00ean li\u00ean quan).<\/p>\n<\/li>\n<li>\n<p><strong>K\u1ebft h\u1ee3p c\u00e1c g\u00f3c nh\u00ecn<\/strong>: S\u1eed d\u1ee5ng nhi\u1ec1u s\u01a1 \u0111\u1ed3 \u0111\u1ec3 k\u1ec3 m\u1ed9t c\u00e2u chuy\u1ec7n \u0111\u1ea7y \u0111\u1ee7 (v\u00ed d\u1ee5: Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u2192 Chu\u1ed7i \u2192 L\u1edbp).<\/p>\n<\/li>\n<li>\n<p><strong>M\u1edf r\u1ed9ng m\u1ed9t c\u00e1ch c\u1ea9n tr\u1ecdng<\/strong>: S\u1eed d\u1ee5ng c\u00e1c ki\u1ec3u d\u00e1ng, gi\u00e1 tr\u1ecb g\u1eafn th\u1ebb v\u00e0 h\u1ed3 s\u01a1 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111\u1eb7c th\u00f9 l\u0129nh v\u1ef1c\u2014nh\u01b0ng h\u00e3y ghi ch\u00e9p r\u00f5 r\u00e0ng c\u00e1c quy \u01b0\u1edbc.<\/p>\n<\/li>\n<li>\n<p><strong>Gi\u1eef cho n\u00f3 d\u1ec5 \u0111\u1ecdc<\/strong>: B\u1ecf qua c\u00e1c chi ti\u1ebft kh\u00f4ng li\u00ean quan; s\u1eed d\u1ee5ng ghi ch\u00fa \u0111\u1ec3 cung c\u1ea5p ng\u1eef c\u1ea3nh b\u1ed5 sung.<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\ud83d\udccc\u00a0<strong>H\u00e3y nh\u1edb<\/strong>:\u00a0<em>\u201cUML l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p.\u201d<\/em> N\u00f3 cung c\u1ea5p k\u00fd hi\u1ec7u\u2014kh\u00f4ng ph\u1ea3i quy tr\u00ecnh. Ch\u1ecdn c\u00e1c s\u01a1 \u0111\u1ed3 gi\u00fap l\u00e0m r\u00f5 giao ti\u1ebfp, ch\u1ee9 kh\u00f4ng ph\u1ea3i nh\u1eefng s\u01a1 \u0111\u1ed3 \u0111\u1ec3 \u0111\u00e1nh d\u1ea5u v\u00e0o \u00f4.<\/p>\n<\/blockquote>\n<h3><strong><span>K\u1ebft lu\u1eadn<\/span><\/strong><\/h3>\n<div><span>Th\u00e0nh th\u1ea1o UML kh\u00f4ng n\u1eb1m \u1edf vi\u1ec7c ghi nh\u1edb m\u1ecdi quy t\u1eafc ng\u1eef ph\u00e1p, m\u00e0 n\u1eb1m \u1edf vi\u1ec7c h\u1ecdc c\u00e1ch k\u1ec3 m\u1ed9t c\u00e2u chuy\u1ec7n r\u00f5 r\u00e0ng, c\u00f3 m\u1ee5c \u0111\u00edch v\u1ec1 h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. Nh\u01b0 h\u01b0\u1edbng d\u1eabn n\u00e0y minh h\u1ecda, m\u1ed7i lo\u1ea1i s\u01a1 \u0111\u1ed3 UML mang \u0111\u1ebfn m\u1ed9t g\u00f3c nh\u00ecn ri\u00eang bi\u1ec7t: s\u01a1 \u0111\u1ed3 l\u1edbp v\u00e0 g\u00f3i ti\u1ebft l\u1ed9 ki\u1ebfn tr\u00fac t\u0129nh, s\u01a1 \u0111\u1ed3 chu\u1ed7i v\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i ph\u01a1i b\u00e0y h\u00e0nh vi \u0111\u1ed9ng, trong khi s\u01a1 \u0111\u1ed3 tri\u1ec3n khai v\u00e0 s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh n\u1ed1i k\u1ebft thi\u1ebft k\u1ebf v\u00e0 th\u1ef1c thi. S\u1ee9c m\u1ea1nh th\u1ef1c s\u1ef1 c\u1ee7a UML n\u1eb1m \u1edf kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng\u2014n\u00f3 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng t\u1eeb nh\u1eefng b\u1ea3n ph\u00e1c th\u1ea3o tr\u00ean b\u1ea3ng tr\u1eafng \u0111\u1ebfn c\u00e1c m\u00f4 h\u00ecnh th\u1ef1c thi \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi c\u00f4ng c\u1ee5, v\u00e0 n\u00f3 th\u00edch nghi v\u1edbi nhu c\u1ea7u c\u1ee7a c\u1ea3 l\u1eadp tr\u00ecnh vi\u00ean, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 c\u00e1c b\u00ean li\u00ean quan kinh doanh. H\u00e3y nh\u1edb r\u1eb1ng m\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 l\u00e0 qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i, h\u01b0\u1edbng \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi \u0111\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u00fd. B\u1eaft \u0111\u1ea7u b\u1eb1ng s\u01a1 \u0111\u1ed3 \u0111\u01a1n gi\u1ea3n nh\u1ea5t c\u00f3 th\u1ec3 truy\u1ec1n \u0111\u1ea1t \u00fd \u0111\u1ecbnh c\u1ee7a b\u1ea1n, tinh ch\u1ec9nh n\u00f3 khi hi\u1ec3u bi\u1ebft \u0111\u01b0\u1ee3c s\u00e2u s\u1eafc h\u01a1n, v\u00e0 k\u1ebft h\u1ee3p nhi\u1ec1u g\u00f3c nh\u00ecn khi m\u1ed9t s\u01a1 \u0111\u1ed3 duy nh\u1ea5t kh\u00f4ng \u0111\u1ee7. UML l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef \u0111\u1ec3 giao ti\u1ebfp, ch\u1ee9 kh\u00f4ng ph\u1ea3i danh s\u00e1ch ki\u1ec3m tra tu\u00e2n th\u1ee7; h\u00e3y d\u00f9ng n\u00f3 \u0111\u1ec3 l\u00e0m r\u00f5 s\u1ef1 m\u01a1 h\u1ed3, ch\u1ee9 kh\u00f4ng ph\u1ea3i t\u1ea1o ra s\u1ef1 m\u01a1 h\u1ed3. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng nh\u1eefng nguy\u00ean t\u1eafc n\u00e0y m\u1ed9t c\u00e1ch c\u1ea9n tr\u1ecdng, b\u1ea1n s\u1ebd bi\u1ebfn nh\u1eefng kh\u00e1i ni\u1ec7m tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh b\u1ea3n thi\u1ebft k\u1ebf h\u00e0nh \u0111\u1ed9ng, gi\u00fap \u0111\u1ed3ng b\u1ed9 \u0111\u1ed9i ng\u0169, \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 gi\u1eef cho h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n v\u1eefng ch\u1eafc khi ch\u00fang ph\u00e1t tri\u1ec3n theo th\u1eddi gian.<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML) \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n ng\u1ea7m \u0111\u1ecbnh \u0111\u1ec3 tr\u1ef1c quan<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-12118","post","type-post","status-publish","format-standard","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - 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