{"id":6635,"date":"2026-02-05T13:03:36","date_gmt":"2026-02-05T05:03:36","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/vn\/demystifying-uml-models-diagrams-and-views-in-software-design\/"},"modified":"2026-02-05T13:03:36","modified_gmt":"2026-02-05T05:03:36","slug":"demystifying-uml-models-diagrams-and-views-in-software-design","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/vn\/demystifying-uml-models-diagrams-and-views-in-software-design\/","title":{"rendered":"Gi\u1ea3i m\u00e3 UML: C\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m"},"content":{"rendered":"<h2>Ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong UML<\/h2>\n<p>Trong UML (Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t), c\u00e1c kh\u00e1i ni\u1ec7m &#8220;s\u01a1 \u0111\u1ed3&#8221;, &#8220;quan \u0111i\u1ec3m&#8221; v\u00e0 &#8220;m\u00f4 h\u00ecnh&#8221; c\u00f3 li\u00ean quan \u0111\u1ebfn nhau v\u00e0 \u0111\u00f3ng nh\u1eefng vai tr\u00f2 kh\u00e1c nhau trong vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a v\u00e0 bi\u1ec3u di\u1ec5n c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. H\u00e3y c\u00f9ng l\u00e0m r\u00f5 t\u1eebng kh\u00e1i ni\u1ec7m n\u00e0y:<\/p>\n<ol>\n<li><strong>M\u00f4 h\u00ecnh<\/strong>:\n<ul>\n<li>M\u1ed9t <strong>m\u00f4 h\u00ecnh<\/strong>Trong UML, m\u1ed9t m\u00f4 h\u00ecnh \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u00f4 t\u1ea3 tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac, h\u00e0nh vi v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c trong h\u1ec7 th\u1ed1ng.<\/li>\n<li>M\u1ed9t m\u00f4 h\u00ecnh UML c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u lo\u1ea1i th\u00f4ng tin kh\u00e1c nhau, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a l\u1edbp, c\u00e1c m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, m\u00e1y tr\u1ea1ng th\u00e1i, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c n\u1eefa.<\/li>\n<li>M\u1ed9t m\u00f4 h\u00ecnh th\u01b0\u1eddng \u0111\u1ed9c l\u1eadp v\u1edbi b\u1ea5t k\u1ef3 k\u00fd hi\u1ec7u hay bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee5 th\u1ec3 n\u00e0o. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a b\u1eb1ng m\u00f4 t\u1ea3 v\u0103n b\u1ea3n, s\u01a1 \u0111\u1ed3 ho\u1eb7c k\u1ebft h\u1ee3p c\u1ea3 hai.<\/li>\n<\/ul>\n<\/li>\n<li><strong>S\u01a1 \u0111\u1ed3<\/strong>:\n<ul>\n<li>M\u1ed9t <strong>s\u01a1 \u0111\u1ed3<\/strong>Trong UML, m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c quan \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u00f3 nhi\u1ec1u lo\u1ea1i s\u01a1 \u0111\u1ed3 UML, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee5 th\u1ec3 b\u00ean trong m\u00f4 h\u00ecnh. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i.<\/li>\n<li>C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p m\u1ed9t c\u00e1ch tr\u1ef1c quan \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u00f4 h\u00ecnh, gi\u00fap c\u00e1c b\u00ean li\u00ean quan d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft ki\u1ebfn tr\u00fac, h\u00e0nh vi v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Quan \u0111i\u1ec3m<\/strong>:\n<ul>\n<li>M\u1ed9t <strong>quan \u0111i\u1ec3m<\/strong>Trong UML, m\u1ed9t quan \u0111i\u1ec3m l\u00e0 m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML, t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u00e1c quan \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch chia nh\u1ecf ch\u00fang th\u00e0nh c\u00e1c ph\u1ea7n d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, m\u1ed7i ph\u1ea7n t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac, h\u00e0nh vi ho\u1eb7c tri\u1ec3n khai.<\/li>\n<li>C\u00e1c quan \u0111i\u1ec3m gi\u00fap c\u00e1c b\u00ean li\u00ean quan kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh, t\u1eadp trung v\u00e0o nh\u1eefng ph\u1ea7n c\u1ee7a m\u00f4 h\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd. V\u00ed d\u1ee5, m\u1ed9t ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 ch\u1ee7 y\u1ebfu l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac (v\u00ed d\u1ee5: s\u01a1 \u0111\u1ed3 l\u1edbp), trong khi m\u1ed9t chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec3u ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>M\u1ed9t s\u1ed1 v\u00ed d\u1ee5<\/h2>\n<div class=\"flex-1 overflow-hidden\">\n<div class=\"react-scroll-to-bottom--css-blikc-79elbk h-full dark:bg-gray-800\">\n<div class=\"react-scroll-to-bottom--css-blikc-1n7m0yu\">\n<div class=\"flex flex-col text-sm dark:bg-gray-800\">\n<div class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\" data-testid=\"conversation-turn-13\">\n<div class=\"p-4 justify-center text-base md:gap-6 md:py-6 m-auto\">\n<div class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3 max-w-full\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y trong UML.<\/p>\n<p><strong>M\u00f4 h\u00ecnh<\/strong>:<\/p>\n<ul>\n<li>M\u00f4 h\u00ecnh UML <strong>m\u00f4 h\u00ecnh<\/strong> \u0111\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin v\u00e0 bi\u1ec3u di\u1ec5n thi\u1ebft y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 bao qu\u00e1t m\u1ed9t lo\u1ea1t c\u00e1c chi ti\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c l\u1edbp, m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 t\u01b0\u01a1ng t\u00e1c.<\/li>\n<li>V\u00ed d\u1ee5, n\u00f3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u1edbp nh\u01b0<code>S\u00e1ch<\/code>, <code>Th\u01b0 vi\u1ec7n<\/code>, <code>Th\u00e0nh vi\u00ean<\/code>, v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft c\u1ee7a ch\u00fang, c\u0169ng nh\u01b0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0<code>M\u01b0\u1ee3n S\u00e1ch<\/code> v\u00e0<code>Tr\u1ea3 S\u00e1ch<\/code>. N\u00f3 c\u0169ng bao g\u1ed3m m\u00f4 t\u1ea3 h\u00e0nh vi v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c.<\/li>\n<\/ul>\n<p><strong>S\u01a1 \u0111\u1ed3<\/strong>:<\/p>\n<ul>\n<li>M\u1ed9t<strong>s\u01a1 \u0111\u1ed3<\/strong> l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh. H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9t<strong>s\u01a1 \u0111\u1ed3 l\u1edbp<\/strong> nh\u01b0 m\u1ed9t v\u00ed d\u1ee5:\n<ul>\n<li><strong>S\u01a1 \u0111\u1ed3 L\u1edbp<\/strong>: S\u01a1 \u0111\u1ed3 n\u00e0y<strong>s\u01a1 \u0111\u1ed3<\/strong> bi\u1ec3u di\u1ec5n kh\u00eda c\u1ea1nh c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. N\u00f3 hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7. V\u00ed d\u1ee5:\n<ul>\n<li>N\u00f3 tr\u1ef1c quan minh h\u1ecda l\u1edbp<code>S\u00e1ch<\/code>v\u1edbi c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0<code>ti\u00eau \u0111\u1ec1<\/code>, <code>t\u00e1c gi\u1ea3<\/code>, v\u00e0<code>ISBN<\/code>.<\/li>\n<li>N\u00f3 minh h\u1ecda c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa<code>Th\u00e0nh vi\u00ean<\/code> v\u00e0 <code>Th\u01b0 vi\u1ec7n<\/code> c\u00e1c l\u1edbp, cho th\u1ea5y r\u1eb1ng c\u00e1c th\u00e0nh vi\u00ean c\u00f3 li\u00ean quan \u0111\u1ebfn m\u1ed9t th\u01b0 vi\u1ec7n.<\/li>\n<li>N\u00f3 c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb t\u00ednh \u0111a d\u1ea1ng (v\u00ed d\u1ee5: m\u1ed9t th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u s\u00e1ch).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Xem<\/strong>:<\/p>\n<ul>\n<li>M\u1ed9t <strong>g\u00f3c nh\u00ecn<\/strong>\u0111\u1ea1i di\u1ec7n cho m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh, t\u1eadp trung v\u00e0o m\u1ed9t v\u1ea5n \u0111\u1ec1 ho\u1eb7c kh\u00eda c\u1ea1nh nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5:\n<ul>\n<li><strong>G\u00f3c nh\u00ecn c\u1ea5u tr\u00fac<\/strong>: G\u00f3c nh\u00ecn n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m <strong>s\u01a1 \u0111\u1ed3 l\u1edbp<\/strong>, nh\u1ea5n m\u1ea1nh c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n.<\/li>\n<li><strong>G\u00f3c nh\u00ecn h\u00e0nh vi<\/strong>: M\u1ed9t <strong>g\u00f3c nh\u00ecn<\/strong>c\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t <strong>s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/strong> cho th\u1ea5y c\u00e1ch m\u1ed9t th\u00e0nh vi\u00ean m\u01b0\u1ee3n m\u1ed9t cu\u1ed1n s\u00e1ch, nh\u1ea5n m\u1ea1nh h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>G\u00f3c nh\u00ecn tri\u1ec3n khai<\/strong>: M\u1ed9t g\u00f3c nh\u00ecn th\u1ee9 ba<strong>g\u00f3c nh\u00ecn<\/strong>c\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t <strong>s\u01a1 \u0111\u1ed3 tri\u1ec3n khai<\/strong> minh h\u1ecda c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean c\u00e1c n\u00fat v\u1eadt l\u00fd (m\u00e1y ch\u1ee7), gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn tri\u1ec3n khai.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Trong v\u00ed d\u1ee5 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n n\u00e0y, <strong>m\u00f4 h\u00ecnh<\/strong> bao g\u1ed3m t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 h\u1ec7 th\u1ed1ng. C\u00e1c <strong>s\u01a1 \u0111\u1ed3<\/strong> cung c\u1ea5p c\u00e1c bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5u tr\u00fac ho\u1eb7c h\u00e0nh vi. <strong>Xem<\/strong> gi\u00fap c\u00e1c b\u00ean li\u00ean quan t\u1eadp trung v\u00e0o c\u00e1c ph\u1ea7n ph\u00f9 h\u1ee3p c\u1ee7a m\u00f4 h\u00ecnh d\u1ef1a tr\u00ean vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd, b\u1ea5t k\u1ec3 h\u1ecd quan t\u00e2m \u0111\u1ebfn c\u1ea5u tr\u00fac, h\u00e0nh vi hay tri\u1ec3n khai c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/div>\n<h2>S\u01a1 \u0111\u1ed3 so v\u1edbi Xem so v\u1edbi M\u00f4 h\u00ecnh trong UML<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"group w-full text-token-text-primary border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\" data-testid=\"conversation-turn-15\">\n<div class=\"p-4 justify-center text-base md:gap-6 md:py-6 m-auto\">\n<div class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }\">\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div class=\"text-xs flex items-center justify-center gap-1 absolute left-0 top-2 -ml-4 -translate-x-full invisible\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t b\u1ea3ng t\u00f3m t\u1eaft c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a &#8220;M\u00f4 h\u00ecnh&#8221;, &#8220;S\u01a1 \u0111\u1ed3&#8221; v\u00e0 &#8220;Xem&#8221; trong b\u1ed1i c\u1ea3nh UML:<\/div>\n<\/div>\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3 max-w-full\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<table>\n<thead>\n<tr>\n<th>Kh\u00eda c\u1ea1nh<\/th>\n<th>M\u00f4 h\u00ecnh<\/th>\n<th>S\u01a1 \u0111\u1ed3<\/th>\n<th>Xem<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ecbnh ngh\u0129a<\/strong><\/td>\n<td>Bi\u1ec3u di\u1ec5n tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m<\/td>\n<td>Bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda<\/td>\n<td>T\u1eadp con ho\u1eb7c g\u00f3c nh\u00ecn c\u1ee7a m\u00f4 h\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u1ea1m vi<\/strong><\/td>\n<td>Bao g\u1ed3m to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng<\/td>\n<td>T\u1eadp trung v\u00e0o kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3<\/td>\n<td>T\u1eadp trung v\u00e0o m\u1ed1i quan t\u00e2m ho\u1eb7c g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3<\/td>\n<\/tr>\n<tr>\n<td><strong>N\u1ed9i dung<\/strong><\/td>\n<td>C\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau (v\u00ed d\u1ee5: l\u1edbp, tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, t\u01b0\u01a1ng t\u00e1c)<\/td>\n<td>C\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ed3 h\u1ecda (v\u00ed d\u1ee5: h\u00ecnh d\u1ea1ng, \u0111\u01b0\u1eddng n\u00e9t, k\u00fd hi\u1ec7u)<\/td>\n<td>T\u1eadp con c\u1ee5 th\u1ec3 c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n, xem ho\u1eb7c s\u01a1 \u0111\u1ed3<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u1ee5c \u0111\u00edch<\/strong><\/td>\n<td>N\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u v\u00e0 truy\u1ec1n \u0111\u1ea1t chi ti\u1ebft h\u1ec7 th\u1ed1ng<\/td>\n<td>Tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3<\/td>\n<td>\u0110\u01a1n gi\u1ea3n h\u00f3a v\u00e0 \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng tin cho c\u00e1c b\u00ean li\u00ean quan<\/td>\n<\/tr>\n<tr>\n<td><strong>V\u00ed d\u1ee5<\/strong><\/td>\n<td>\u2013 \u0110\u1ecbnh ngh\u0129a l\u1edbp<\/td>\n<td>\u2013 S\u01a1 \u0111\u1ed3 l\u1edbp cho quan \u0111i\u1ec3m c\u1ea5u tr\u00fac<\/td>\n<td>\u2013 Quan \u0111i\u1ec3m c\u1ea5u tr\u00fac (s\u01a1 \u0111\u1ed3 l\u1edbp) d\u00e0nh cho ki\u1ebfn tr\u00fac s\u01b0<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 t\u00ecnh hu\u1ed1ng<\/td>\n<td>\u2013 S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho quan \u0111i\u1ec3m h\u00e0nh vi<\/td>\n<td>\u2013 Quan \u0111i\u1ec3m h\u00e0nh vi (s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1) d\u00e0nh cho nh\u00e0 ph\u00e1t tri\u1ec3n<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 S\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c<\/td>\n<td>\u2013 S\u01a1 \u0111\u1ed3 tri\u1ec3n khai cho quan \u0111i\u1ec3m tri\u1ec3n khai<\/td>\n<td>\u2013 Quan \u0111i\u1ec3m tri\u1ec3n khai (s\u01a1 \u0111\u1ed3 tri\u1ec3n khai) d\u00e0nh cho qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>B\u1ea3ng n\u00e0y l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa &#8220;M\u00f4 h\u00ecnh&#8221;, &#8220;S\u01a1 \u0111\u1ed3&#8221; v\u00e0 &#8220;Quan \u0111i\u1ec3m&#8221; trong UML, t\u1eadp trung v\u00e0o \u0111\u1ecbnh ngh\u0129a, ph\u1ea1m vi, n\u1ed9i dung, m\u1ee5c \u0111\u00edch v\u00e0 v\u00ed d\u1ee5 c\u1ee7a ch\u00fang<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>T\u00f3m t\u1eaft<\/h2>\n<p>m\u1ed9t UML <strong>m\u00f4 h\u00ecnh<\/strong>\u0111\u1ea1i di\u1ec7n cho m\u00f4 t\u1ea3 tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t h\u1ec7 th\u1ed1ng, v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a b\u1eb1ng s\u01a1 \u0111\u1ed3 v\u00e0 m\u00f4 t\u1ea3 v\u0103n b\u1ea3n.<strong>S\u01a1 \u0111\u1ed3<\/strong>l\u00e0 c\u00e1c bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t th\u00f4ng tin \u0111\u00f3.<strong>Quan \u0111i\u1ec3m<\/strong>l\u00e0 c\u00e1c t\u1eadp con ho\u1eb7c g\u00f3c nh\u00ecn c\u1ee7a m\u00f4 h\u00ecnh t\u1eadp trung v\u00e0o c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3, gi\u00fap c\u00e1c b\u00ean li\u00ean quan l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c ph\u1ea7n ph\u00f9 h\u1ee3p c\u1ee7a m\u00f4 h\u00ecnh m\u00e0 kh\u00f4ng b\u1ecb cho\u00e1ng ng\u1ee3p b\u1edfi \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a n\u00f3. C\u00f9ng nhau, c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y gi\u00fap m\u00f4 h\u00ecnh h\u00f3a, t\u00e0i li\u1ec7u h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong UML Trong UML (Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t), c\u00e1c kh\u00e1i ni\u1ec7m &#8220;s\u01a1 \u0111\u1ed3&#8221;, &#8220;quan \u0111i\u1ec3m&#8221; v\u00e0 &#8220;m\u00f4 h\u00ecnh&#8221; c\u00f3 li\u00ean quan \u0111\u1ebfn nhau v\u00e0 \u0111\u00f3ng nh\u1eefng vai tr\u00f2 kh\u00e1c nhau trong vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a v\u00e0 bi\u1ec3u di\u1ec5n c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. H\u00e3y c\u00f9ng l\u00e0m r\u00f5 t\u1eebng kh\u00e1i ni\u1ec7m n\u00e0y: M\u00f4 h\u00ecnh: M\u1ed9t m\u00f4 h\u00ecnhTrong UML, m\u1ed9t m\u00f4 h\u00ecnh \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u00f4 t\u1ea3 tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac, h\u00e0nh vi v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c trong h\u1ec7 th\u1ed1ng. M\u1ed9t m\u00f4 h\u00ecnh UML c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u lo\u1ea1i th\u00f4ng tin kh\u00e1c nhau, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a l\u1edbp, c\u00e1c m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, m\u00e1y tr\u1ea1ng th\u00e1i, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c n\u1eefa. M\u1ed9t m\u00f4 h\u00ecnh th\u01b0\u1eddng \u0111\u1ed9c l\u1eadp v\u1edbi b\u1ea5t k\u1ef3 k\u00fd hi\u1ec7u hay bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee5 th\u1ec3 n\u00e0o. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a b\u1eb1ng m\u00f4 t\u1ea3 v\u0103n b\u1ea3n, s\u01a1 \u0111\u1ed3 ho\u1eb7c k\u1ebft h\u1ee3p c\u1ea3 hai. S\u01a1 \u0111\u1ed3: M\u1ed9t s\u01a1 \u0111\u1ed3Trong UML, m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c quan \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. C\u00f3 nhi\u1ec1u lo\u1ea1i s\u01a1 \u0111\u1ed3 UML, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee5 th\u1ec3 b\u00ean trong m\u00f4 h\u00ecnh. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p m\u1ed9t c\u00e1ch tr\u1ef1c quan \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u00f4 h\u00ecnh, gi\u00fap c\u00e1c b\u00ean li\u00ean quan d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft ki\u1ebfn tr\u00fac, h\u00e0nh vi v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng. Quan \u0111i\u1ec3m: M\u1ed9t quan \u0111i\u1ec3mTrong UML, m\u1ed9t quan \u0111i\u1ec3m l\u00e0 m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML, t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. C\u00e1c quan \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch chia nh\u1ecf ch\u00fang th\u00e0nh c\u00e1c ph\u1ea7n d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, m\u1ed7i ph\u1ea7n t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac, h\u00e0nh vi ho\u1eb7c tri\u1ec3n khai. C\u00e1c quan \u0111i\u1ec3m gi\u00fap c\u00e1c b\u00ean li\u00ean quan kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh, t\u1eadp trung v\u00e0o nh\u1eefng ph\u1ea7n c\u1ee7a m\u00f4 h\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd. V\u00ed d\u1ee5, m\u1ed9t ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 ch\u1ee7 y\u1ebfu l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac (v\u00ed d\u1ee5: s\u01a1 \u0111\u1ed3 l\u1edbp), trong khi m\u1ed9t chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec3u ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t s\u1ed1 v\u00ed d\u1ee5 H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y trong UML. M\u00f4 h\u00ecnh: M\u00f4 h\u00ecnh UML m\u00f4 h\u00ecnh \u0111\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin v\u00e0 bi\u1ec3u di\u1ec5n thi\u1ebft y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 bao qu\u00e1t m\u1ed9t lo\u1ea1t c\u00e1c chi ti\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c l\u1edbp, m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 t\u01b0\u01a1ng t\u00e1c. V\u00ed d\u1ee5, n\u00f3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u1edbp nh\u01b0S\u00e1ch, Th\u01b0 vi\u1ec7n, Th\u00e0nh vi\u00ean, v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft c\u1ee7a ch\u00fang, c\u0169ng nh\u01b0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0M\u01b0\u1ee3n S\u00e1ch v\u00e0Tr\u1ea3 S\u00e1ch. N\u00f3 c\u0169ng bao g\u1ed3m m\u00f4 t\u1ea3 h\u00e0nh vi v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c. S\u01a1 \u0111\u1ed3: M\u1ed9ts\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh. H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9ts\u01a1 \u0111\u1ed3 l\u1edbp nh\u01b0 m\u1ed9t v\u00ed d\u1ee5: S\u01a1 \u0111\u1ed3 L\u1edbp: S\u01a1 \u0111\u1ed3 n\u00e0ys\u01a1 \u0111\u1ed3 bi\u1ec3u di\u1ec5n kh\u00eda c\u1ea1nh c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. N\u00f3 hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7. V\u00ed d\u1ee5: N\u00f3 tr\u1ef1c quan minh h\u1ecda l\u1edbpS\u00e1chv\u1edbi c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0ti\u00eau \u0111\u1ec1, t\u00e1c gi\u1ea3, v\u00e0ISBN. N\u00f3 minh h\u1ecda c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefaTh\u00e0nh vi\u00ean v\u00e0 Th\u01b0 vi\u1ec7n c\u00e1c l\u1edbp, cho th\u1ea5y r\u1eb1ng c\u00e1c th\u00e0nh vi\u00ean c\u00f3 li\u00ean quan \u0111\u1ebfn m\u1ed9t th\u01b0 vi\u1ec7n. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb t\u00ednh \u0111a d\u1ea1ng (v\u00ed d\u1ee5: m\u1ed9t th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u s\u00e1ch). Xem: M\u1ed9t g\u00f3c nh\u00ecn\u0111\u1ea1i di\u1ec7n cho m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh, t\u1eadp trung v\u00e0o m\u1ed9t v\u1ea5n \u0111\u1ec1 ho\u1eb7c kh\u00eda c\u1ea1nh nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5: G\u00f3c nh\u00ecn c\u1ea5u tr\u00fac: G\u00f3c nh\u00ecn n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, nh\u1ea5n m\u1ea1nh c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. G\u00f3c nh\u00ecn h\u00e0nh vi: M\u1ed9t g\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho th\u1ea5y c\u00e1ch m\u1ed9t th\u00e0nh vi\u00ean m\u01b0\u1ee3n m\u1ed9t cu\u1ed1n s\u00e1ch, nh\u1ea5n m\u1ea1nh h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. G\u00f3c nh\u00ecn tri\u1ec3n khai: M\u1ed9t g\u00f3c nh\u00ecn th\u1ee9 bag\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tri\u1ec3n khai minh h\u1ecda c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean c\u00e1c n\u00fat v\u1eadt l\u00fd (m\u00e1y ch\u1ee7), gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn tri\u1ec3n khai. Trong v\u00ed d\u1ee5 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n n\u00e0y, m\u00f4 h\u00ecnh bao g\u1ed3m t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p c\u00e1c bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5u tr\u00fac ho\u1eb7c h\u00e0nh vi. Xem gi\u00fap c\u00e1c b\u00ean li\u00ean quan t\u1eadp trung v\u00e0o c\u00e1c ph\u1ea7n ph\u00f9 h\u1ee3p c\u1ee7a m\u00f4 h\u00ecnh d\u1ef1a tr\u00ean vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd, b\u1ea5t k\u1ec3 h\u1ecd quan t\u00e2m \u0111\u1ebfn c\u1ea5u tr\u00fac, h\u00e0nh vi hay tri\u1ec3n khai c\u1ee7a h\u1ec7<a href=\"https:\/\/guides.visual-paradigm.com\/vn\/demystifying-uml-models-diagrams-and-views-in-software-design\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">Gi\u1ea3i m\u00e3 UML: C\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_eb_attr":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-6635","post","type-post","status-publish","format-standard","hentry","category-uml"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gi\u1ea3i m\u00e3 UML: C\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m - Visual Paradigm Guides Vietnamese<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/guides.visual-paradigm.com\/vn\/demystifying-uml-models-diagrams-and-views-in-software-design\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gi\u1ea3i m\u00e3 UML: C\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m - Visual Paradigm Guides Vietnamese\" \/>\n<meta property=\"og:description\" content=\"Ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong UML Trong UML (Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t), c\u00e1c kh\u00e1i ni\u1ec7m &#8220;s\u01a1 \u0111\u1ed3&#8221;, &#8220;quan \u0111i\u1ec3m&#8221; v\u00e0 &#8220;m\u00f4 h\u00ecnh&#8221; c\u00f3 li\u00ean quan \u0111\u1ebfn nhau v\u00e0 \u0111\u00f3ng nh\u1eefng vai tr\u00f2 kh\u00e1c nhau trong vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a v\u00e0 bi\u1ec3u di\u1ec5n c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. H\u00e3y c\u00f9ng l\u00e0m r\u00f5 t\u1eebng kh\u00e1i ni\u1ec7m n\u00e0y: M\u00f4 h\u00ecnh: M\u1ed9t m\u00f4 h\u00ecnhTrong UML, m\u1ed9t m\u00f4 h\u00ecnh \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u00f4 t\u1ea3 tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac, h\u00e0nh vi v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c trong h\u1ec7 th\u1ed1ng. M\u1ed9t m\u00f4 h\u00ecnh UML c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u lo\u1ea1i th\u00f4ng tin kh\u00e1c nhau, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a l\u1edbp, c\u00e1c m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, m\u00e1y tr\u1ea1ng th\u00e1i, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c n\u1eefa. M\u1ed9t m\u00f4 h\u00ecnh th\u01b0\u1eddng \u0111\u1ed9c l\u1eadp v\u1edbi b\u1ea5t k\u1ef3 k\u00fd hi\u1ec7u hay bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee5 th\u1ec3 n\u00e0o. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a b\u1eb1ng m\u00f4 t\u1ea3 v\u0103n b\u1ea3n, s\u01a1 \u0111\u1ed3 ho\u1eb7c k\u1ebft h\u1ee3p c\u1ea3 hai. S\u01a1 \u0111\u1ed3: M\u1ed9t s\u01a1 \u0111\u1ed3Trong UML, m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c quan \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. C\u00f3 nhi\u1ec1u lo\u1ea1i s\u01a1 \u0111\u1ed3 UML, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee5 th\u1ec3 b\u00ean trong m\u00f4 h\u00ecnh. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p m\u1ed9t c\u00e1ch tr\u1ef1c quan \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u00f4 h\u00ecnh, gi\u00fap c\u00e1c b\u00ean li\u00ean quan d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft ki\u1ebfn tr\u00fac, h\u00e0nh vi v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng. Quan \u0111i\u1ec3m: M\u1ed9t quan \u0111i\u1ec3mTrong UML, m\u1ed9t quan \u0111i\u1ec3m l\u00e0 m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML, t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. C\u00e1c quan \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch chia nh\u1ecf ch\u00fang th\u00e0nh c\u00e1c ph\u1ea7n d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, m\u1ed7i ph\u1ea7n t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac, h\u00e0nh vi ho\u1eb7c tri\u1ec3n khai. C\u00e1c quan \u0111i\u1ec3m gi\u00fap c\u00e1c b\u00ean li\u00ean quan kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh, t\u1eadp trung v\u00e0o nh\u1eefng ph\u1ea7n c\u1ee7a m\u00f4 h\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd. V\u00ed d\u1ee5, m\u1ed9t ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 ch\u1ee7 y\u1ebfu l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac (v\u00ed d\u1ee5: s\u01a1 \u0111\u1ed3 l\u1edbp), trong khi m\u1ed9t chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec3u ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t s\u1ed1 v\u00ed d\u1ee5 H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y trong UML. M\u00f4 h\u00ecnh: M\u00f4 h\u00ecnh UML m\u00f4 h\u00ecnh \u0111\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin v\u00e0 bi\u1ec3u di\u1ec5n thi\u1ebft y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 bao qu\u00e1t m\u1ed9t lo\u1ea1t c\u00e1c chi ti\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c l\u1edbp, m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 t\u01b0\u01a1ng t\u00e1c. V\u00ed d\u1ee5, n\u00f3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u1edbp nh\u01b0S\u00e1ch, Th\u01b0 vi\u1ec7n, Th\u00e0nh vi\u00ean, v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft c\u1ee7a ch\u00fang, c\u0169ng nh\u01b0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0M\u01b0\u1ee3n S\u00e1ch v\u00e0Tr\u1ea3 S\u00e1ch. N\u00f3 c\u0169ng bao g\u1ed3m m\u00f4 t\u1ea3 h\u00e0nh vi v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c. S\u01a1 \u0111\u1ed3: M\u1ed9ts\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh. H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9ts\u01a1 \u0111\u1ed3 l\u1edbp nh\u01b0 m\u1ed9t v\u00ed d\u1ee5: S\u01a1 \u0111\u1ed3 L\u1edbp: S\u01a1 \u0111\u1ed3 n\u00e0ys\u01a1 \u0111\u1ed3 bi\u1ec3u di\u1ec5n kh\u00eda c\u1ea1nh c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. N\u00f3 hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7. V\u00ed d\u1ee5: N\u00f3 tr\u1ef1c quan minh h\u1ecda l\u1edbpS\u00e1chv\u1edbi c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0ti\u00eau \u0111\u1ec1, t\u00e1c gi\u1ea3, v\u00e0ISBN. N\u00f3 minh h\u1ecda c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefaTh\u00e0nh vi\u00ean v\u00e0 Th\u01b0 vi\u1ec7n c\u00e1c l\u1edbp, cho th\u1ea5y r\u1eb1ng c\u00e1c th\u00e0nh vi\u00ean c\u00f3 li\u00ean quan \u0111\u1ebfn m\u1ed9t th\u01b0 vi\u1ec7n. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb t\u00ednh \u0111a d\u1ea1ng (v\u00ed d\u1ee5: m\u1ed9t th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u s\u00e1ch). Xem: M\u1ed9t g\u00f3c nh\u00ecn\u0111\u1ea1i di\u1ec7n cho m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh, t\u1eadp trung v\u00e0o m\u1ed9t v\u1ea5n \u0111\u1ec1 ho\u1eb7c kh\u00eda c\u1ea1nh nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5: G\u00f3c nh\u00ecn c\u1ea5u tr\u00fac: G\u00f3c nh\u00ecn n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, nh\u1ea5n m\u1ea1nh c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. G\u00f3c nh\u00ecn h\u00e0nh vi: M\u1ed9t g\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho th\u1ea5y c\u00e1ch m\u1ed9t th\u00e0nh vi\u00ean m\u01b0\u1ee3n m\u1ed9t cu\u1ed1n s\u00e1ch, nh\u1ea5n m\u1ea1nh h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. G\u00f3c nh\u00ecn tri\u1ec3n khai: M\u1ed9t g\u00f3c nh\u00ecn th\u1ee9 bag\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tri\u1ec3n khai minh h\u1ecda c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean c\u00e1c n\u00fat v\u1eadt l\u00fd (m\u00e1y ch\u1ee7), gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn tri\u1ec3n khai. Trong v\u00ed d\u1ee5 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n n\u00e0y, m\u00f4 h\u00ecnh bao g\u1ed3m t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p c\u00e1c bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5u tr\u00fac ho\u1eb7c h\u00e0nh vi. 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Visual Paradigm Guides Vietnamese","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/guides.visual-paradigm.com\/vn\/demystifying-uml-models-diagrams-and-views-in-software-design\/","og_locale":"vi_VN","og_type":"article","og_title":"Gi\u1ea3i m\u00e3 UML: C\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m - Visual Paradigm Guides Vietnamese","og_description":"Ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4 h\u00ecnh, s\u01a1 \u0111\u1ed3 v\u00e0 quan \u0111i\u1ec3m trong UML Trong UML (Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t), c\u00e1c kh\u00e1i ni\u1ec7m &#8220;s\u01a1 \u0111\u1ed3&#8221;, &#8220;quan \u0111i\u1ec3m&#8221; v\u00e0 &#8220;m\u00f4 h\u00ecnh&#8221; c\u00f3 li\u00ean quan \u0111\u1ebfn nhau v\u00e0 \u0111\u00f3ng nh\u1eefng vai tr\u00f2 kh\u00e1c nhau trong vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a v\u00e0 bi\u1ec3u di\u1ec5n c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. H\u00e3y c\u00f9ng l\u00e0m r\u00f5 t\u1eebng kh\u00e1i ni\u1ec7m n\u00e0y: M\u00f4 h\u00ecnh: M\u1ed9t m\u00f4 h\u00ecnhTrong UML, m\u1ed9t m\u00f4 h\u00ecnh \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u00f4 t\u1ea3 tr\u1eebu t\u01b0\u1ee3ng, kh\u00e1i ni\u1ec7m v\u1ec1 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 n\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac, h\u00e0nh vi v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c trong h\u1ec7 th\u1ed1ng. M\u1ed9t m\u00f4 h\u00ecnh UML c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u lo\u1ea1i th\u00f4ng tin kh\u00e1c nhau, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a l\u1edbp, c\u00e1c m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, m\u00e1y tr\u1ea1ng th\u00e1i, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c n\u1eefa. M\u1ed9t m\u00f4 h\u00ecnh th\u01b0\u1eddng \u0111\u1ed9c l\u1eadp v\u1edbi b\u1ea5t k\u1ef3 k\u00fd hi\u1ec7u hay bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee5 th\u1ec3 n\u00e0o. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a b\u1eb1ng m\u00f4 t\u1ea3 v\u0103n b\u1ea3n, s\u01a1 \u0111\u1ed3 ho\u1eb7c k\u1ebft h\u1ee3p c\u1ea3 hai. S\u01a1 \u0111\u1ed3: M\u1ed9t s\u01a1 \u0111\u1ed3Trong UML, m\u1ed9t s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c quan \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 truy\u1ec1n \u0111\u1ea1t c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. C\u00f3 nhi\u1ec1u lo\u1ea1i s\u01a1 \u0111\u1ed3 UML, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 bi\u1ec3u di\u1ec5n th\u00f4ng tin v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee5 th\u1ec3 b\u00ean trong m\u00f4 h\u00ecnh. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p m\u1ed9t c\u00e1ch tr\u1ef1c quan \u0111\u1ec3 hi\u1ec3u v\u00e0 trao \u0111\u1ed5i v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a m\u00f4 h\u00ecnh, gi\u00fap c\u00e1c b\u00ean li\u00ean quan d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft ki\u1ebfn tr\u00fac, h\u00e0nh vi v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng. Quan \u0111i\u1ec3m: M\u1ed9t quan \u0111i\u1ec3mTrong UML, m\u1ed9t quan \u0111i\u1ec3m l\u00e0 m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a m\u1ed9t m\u00f4 h\u00ecnh UML, t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. C\u00e1c quan \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch chia nh\u1ecf ch\u00fang th\u00e0nh c\u00e1c ph\u1ea7n d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, m\u1ed7i ph\u1ea7n t\u1eadp trung v\u00e0o m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac, h\u00e0nh vi ho\u1eb7c tri\u1ec3n khai. C\u00e1c quan \u0111i\u1ec3m gi\u00fap c\u00e1c b\u00ean li\u00ean quan kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh, t\u1eadp trung v\u00e0o nh\u1eefng ph\u1ea7n c\u1ee7a m\u00f4 h\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi vai tr\u00f2 v\u00e0 m\u1ed1i quan t\u00e2m c\u1ee7a h\u1ecd. V\u00ed d\u1ee5, m\u1ed9t ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 ch\u1ee7 y\u1ebfu l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c quan \u0111i\u1ec3m c\u1ea5u tr\u00fac (v\u00ed d\u1ee5: s\u01a1 \u0111\u1ed3 l\u1edbp), trong khi m\u1ed9t chuy\u00ean gia ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec3u ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t s\u1ed1 v\u00ed d\u1ee5 H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y trong UML. M\u00f4 h\u00ecnh: M\u00f4 h\u00ecnh UML m\u00f4 h\u00ecnh \u0111\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin v\u00e0 bi\u1ec3u di\u1ec5n thi\u1ebft y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng. N\u00f3 bao qu\u00e1t m\u1ed9t lo\u1ea1t c\u00e1c chi ti\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c l\u1edbp, m\u1ed1i quan h\u1ec7, c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 t\u01b0\u01a1ng t\u00e1c. V\u00ed d\u1ee5, n\u00f3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u1edbp nh\u01b0S\u00e1ch, Th\u01b0 vi\u1ec7n, Th\u00e0nh vi\u00ean, v\u00e0 c\u00e1c m\u1ed1i li\u00ean k\u1ebft c\u1ee7a ch\u00fang, c\u0169ng nh\u01b0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng nh\u01b0M\u01b0\u1ee3n S\u00e1ch v\u00e0Tr\u1ea3 S\u00e1ch. N\u00f3 c\u0169ng bao g\u1ed3m m\u00f4 t\u1ea3 h\u00e0nh vi v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c. S\u01a1 \u0111\u1ed3: M\u1ed9ts\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh. H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9ts\u01a1 \u0111\u1ed3 l\u1edbp nh\u01b0 m\u1ed9t v\u00ed d\u1ee5: S\u01a1 \u0111\u1ed3 L\u1edbp: S\u01a1 \u0111\u1ed3 n\u00e0ys\u01a1 \u0111\u1ed3 bi\u1ec3u di\u1ec5n kh\u00eda c\u1ea1nh c\u1ea5u tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. N\u00f3 hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7. V\u00ed d\u1ee5: N\u00f3 tr\u1ef1c quan minh h\u1ecda l\u1edbpS\u00e1chv\u1edbi c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0ti\u00eau \u0111\u1ec1, t\u00e1c gi\u1ea3, v\u00e0ISBN. N\u00f3 minh h\u1ecda c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefaTh\u00e0nh vi\u00ean v\u00e0 Th\u01b0 vi\u1ec7n c\u00e1c l\u1edbp, cho th\u1ea5y r\u1eb1ng c\u00e1c th\u00e0nh vi\u00ean c\u00f3 li\u00ean quan \u0111\u1ebfn m\u1ed9t th\u01b0 vi\u1ec7n. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb t\u00ednh \u0111a d\u1ea1ng (v\u00ed d\u1ee5: m\u1ed9t th\u01b0 vi\u1ec7n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u s\u00e1ch). Xem: M\u1ed9t g\u00f3c nh\u00ecn\u0111\u1ea1i di\u1ec7n cho m\u1ed9t g\u00f3c nh\u00ecn c\u1ee5 th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh, t\u1eadp trung v\u00e0o m\u1ed9t v\u1ea5n \u0111\u1ec1 ho\u1eb7c kh\u00eda c\u1ea1nh nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5: G\u00f3c nh\u00ecn c\u1ea5u tr\u00fac: G\u00f3c nh\u00ecn n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m s\u01a1 \u0111\u1ed3 l\u1edbp, nh\u1ea5n m\u1ea1nh c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n. G\u00f3c nh\u00ecn h\u00e0nh vi: M\u1ed9t g\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 cho th\u1ea5y c\u00e1ch m\u1ed9t th\u00e0nh vi\u00ean m\u01b0\u1ee3n m\u1ed9t cu\u1ed1n s\u00e1ch, nh\u1ea5n m\u1ea1nh h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. G\u00f3c nh\u00ecn tri\u1ec3n khai: M\u1ed9t g\u00f3c nh\u00ecn th\u1ee9 bag\u00f3c nh\u00ecnc\u00f3 th\u1ec3 bao g\u1ed3m m\u1ed9t s\u01a1 \u0111\u1ed3 tri\u1ec3n khai minh h\u1ecda c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean c\u00e1c n\u00fat v\u1eadt l\u00fd (m\u00e1y ch\u1ee7), gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn tri\u1ec3n khai. Trong v\u00ed d\u1ee5 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd th\u01b0 vi\u1ec7n n\u00e0y, m\u00f4 h\u00ecnh bao g\u1ed3m t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 h\u1ec7 th\u1ed1ng. C\u00e1c s\u01a1 \u0111\u1ed3 cung c\u1ea5p c\u00e1c bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a c\u00e1c kh\u00eda c\u1ea1nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5u tr\u00fac ho\u1eb7c h\u00e0nh vi. 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