{"id":1962,"date":"2026-04-10T05:18:30","date_gmt":"2026-04-10T05:18:30","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/mastering-uml-class-diagrams-a-comprehensive-guide-to-static-structure-modeling-in-agile-development\/"},"modified":"2026-04-10T05:18:30","modified_gmt":"2026-04-10T05:18:30","slug":"mastering-uml-class-diagrams-a-comprehensive-guide-to-static-structure-modeling-in-agile-development","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/mastering-uml-class-diagrams-a-comprehensive-guide-to-static-structure-modeling-in-agile-development\/","title":{"rendered":"Th\u00e0nh th\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac t\u0129nh trong ph\u00e1t tri\u1ec3n Agile"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Trong b\u1ed1i c\u1ea3nh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ng\u00e0y c\u00e0ng nhanh ch\u00f3ng, giao ti\u1ebfp r\u00f5 r\u00e0ng v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n bao gi\u1edd h\u1ebft. Khi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p Agile ti\u1ebfp t\u1ee5c th\u1ed1ng tr\u1ecb c\u00e1c c\u00e1ch ti\u1ebfp c\u1eadn qu\u1ea3n l\u00fd d\u1ef1 \u00e1n, c\u00e1c \u0111\u1ed9i ng\u0169 \u0111ang d\u1ea7n nh\u1eadn ra gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan c\u00f3 th\u1ec3 theo k\u1ecbp c\u00e1c chu k\u1ef3 ph\u00e1t tri\u1ec3n l\u1eb7p l\u1ea1i.<strong>S\u01a1 \u0111\u1ed3 l\u1edbp UML<\/strong>\u0111\u00e3 tr\u1ea3i qua s\u1ef1 h\u1ed3i sinh \u0111\u00e1ng k\u1ec3, \u0111\u1eb7c bi\u1ec7t khi c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o hi\u1ec7n nay cho ph\u00e9p t\u1ea1o s\u01a1 \u0111\u1ed3 nhanh ch\u00f3ng, h\u1ee3p t\u00e1c th\u1eddi gian th\u1ef1c v\u00e0 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi c\u00e1c quy tr\u00ecnh ph\u00e1t tri\u1ec3n hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p id=\"hDlRqut\"><img fetchpriority=\"high\" alt=\"\" class=\"alignnone size-full wp-image-2134\" decoding=\"async\" fetchpriority=\"high\" height=\"508\" sizes=\"(max-width: 914px) 100vw, 914px\" src=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/img_69d887fef1329.png\" srcset=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/img_69d887fef1329.png 914w, https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/img_69d887fef1329-300x167.png 300w, https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/img_69d887fef1329-768x427.png 768w\" width=\"914\"\/><\/p>\n<p>H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y kh\u00e1m ph\u00e1 m\u1ecdi \u0111i\u1ec1u b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 s\u01a1 \u0111\u1ed3 l\u1edbp UML \u2014 t\u1eeb c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00e1c k\u1ef9 thu\u1eadt m\u00f4 h\u00ecnh h\u00f3a n\u00e2ng cao. D\u00f9 b\u1ea1n l\u00e0 nh\u00e0 ph\u00e2n t\u00edch kinh doanh m\u00f4 h\u00ecnh h\u00f3a c\u00e1c kh\u00e1i ni\u1ec7m l\u0129nh v\u1ef1c, nh\u00e0 ph\u00e1t tri\u1ec3n thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng, hay ng\u01b0\u1eddi d\u1eabn d\u1eaft \u0111\u1ed9i ng\u0169 th\u00fac \u0111\u1ea9y h\u1ee3p t\u00e1c li\u00ean ch\u1ee9c n\u0103ng, t\u00e0i nguy\u00ean n\u00e0y s\u1ebd gi\u00fap b\u1ea1n t\u1eadn d\u1ee5ng s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u1ec3 t\u1ea1o ra c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m r\u00f5 r\u00e0ng h\u01a1n, d\u1ec5 b\u1ea3o tr\u00ec h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c t\u00e0i li\u1ec7u h\u00f3a t\u1ed1t h\u01a1n. V\u1edbi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa h\u1ed7 tr\u1ee3 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh Agile, s\u01a1 \u0111\u1ed3 l\u1edbp kh\u00f4ng c\u00f2n ch\u1ec9 l\u00e0 t\u00e0i li\u1ec7u \u2014 ch\u00fang l\u00e0 nh\u1eefng t\u00e1c ph\u1ea9m s\u1ed1ng \u0111\u1ed9ng, ph\u00e1t tri\u1ec3n song h\u00e0nh c\u00f9ng s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n.<\/p>\n<hr\/>\n<h2>S\u01a1 \u0111\u1ed3 l\u1edbp l\u00e0 g\u00ec?<\/h2>\n<p>Trong k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m, s\u01a1 \u0111\u1ed3 l\u1edbp trong\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Unified_Modeling_Language\">Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML)<\/a>\u00a0l\u00e0\u00a0<strong>m\u1ed9t lo\u1ea1i s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac t\u0129nh<\/strong>\u00a0m\u00f4 t\u1ea3 c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch hi\u1ec3n th\u1ecb c\u00e1c l\u1edbp c\u1ee7a h\u1ec7 th\u1ed1ng, thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang, c\u00e1c thao t\u00e1c (ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c) v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p><img alt=\"Class Diagram in UML Diagram Hierarchy\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/01-class-diagram-in-uml-diagram-hierarchy.png\"\/><\/p>\n<hr\/>\n<h2>M\u1ee5c \u0111\u00edch c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp<\/h2>\n<ol>\n<li>\n<p>Hi\u1ec3n th\u1ecb c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a c\u00e1c b\u1ed9 ph\u00e2n lo\u1ea1i trong h\u1ec7 th\u1ed1ng<\/p>\n<\/li>\n<li>\n<p>S\u01a1 \u0111\u1ed3 cung c\u1ea5p k\u00fd hi\u1ec7u c\u01a1 b\u1ea3n cho c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac kh\u00e1c \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi UML<\/p>\n<\/li>\n<li>\n<p>H\u1eefu \u00edch cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 c\u00e1c th\u00e0nh vi\u00ean kh\u00e1c trong nh\u00f3m<\/p>\n<\/li>\n<li>\n<p>C\u00e1c nh\u00e0 ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng t\u1eeb g\u00f3c nh\u00ecn kinh doanh<\/p>\n<\/li>\n<\/ol>\n<p>M\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp UML bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p>M\u1ed9t t\u1eadp h\u1ee3p c\u00e1c l\u1edbp v\u00e0<\/p>\n<\/li>\n<li>\n<p>M\u1ed9t t\u1eadp h\u1ee3p c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c l\u1edbp<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>L\u1edbp l\u00e0 g\u00ec<\/h2>\n<p>M\u1ed9t m\u00f4 t\u1ea3 v\u1ec1 m\u1ed9t nh\u00f3m \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 vai tr\u00f2 t\u01b0\u01a1ng t\u1ef1 nhau trong h\u1ec7 th\u1ed1ng, bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>C\u00e1c \u0111\u1eb7c t\u00ednh c\u1ea5u tr\u00fac<\/strong>\u00a0(thu\u1ed9c t\u00ednh) x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a l\u1edbp \u2018bi\u1ebft\u2019<\/p>\n<ul>\n<li>\n<p>Bi\u1ec3u di\u1ec5n tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng thu\u1ed9c l\u1edbp<\/p>\n<\/li>\n<li>\n<p>L\u00e0 m\u00f4 t\u1ea3 v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ea5u tr\u00fac ho\u1eb7c t\u0129nh c\u1ee7a m\u1ed9t l\u1edbp<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>C\u00e1c \u0111\u1eb7c t\u00ednh h\u00e0nh vi<\/strong>\u00a0(thao t\u00e1c) x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a l\u1edbp \u2018c\u00f3 th\u1ec3 l\u00e0m\u2019<\/p>\n<ul>\n<li>\n<p>X\u00e1c \u0111\u1ecbnh c\u00e1ch th\u1ee9c m\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thao t\u00e1c l\u00e0 m\u00f4 t\u1ea3 v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh h\u00e0nh vi ho\u1eb7c \u0111\u1ed9ng c\u1ee7a m\u1ed9t l\u1edbp<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>K\u00fd hi\u1ec7u l\u1edbp<\/h2>\n<p>K\u00fd hi\u1ec7u l\u1edbp bao g\u1ed3m ba ph\u1ea7n:<\/p>\n<ol>\n<li>\n<p><strong>T\u00ean l\u1edbp<\/strong><\/p>\n<ul>\n<li>\n<p>T\u00ean l\u1edbp xu\u1ea5t hi\u1ec7n \u1edf ph\u1ea7n \u0111\u1ea7u ti\u00ean.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Thu\u1ed9c t\u00ednh l\u1edbp<\/strong><\/p>\n<ul>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf ph\u1ea7n th\u1ee9 hai.<\/p>\n<\/li>\n<li>\n<p>Lo\u1ea1i thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c bi\u1ebfn th\u00e0nh vi\u00ean (th\u00e0nh vi\u00ean d\u1eef li\u1ec7u) trong m\u00e3 ngu\u1ed3n.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Thao t\u00e1c l\u1edbp<\/strong>\u00a0(Ph\u01b0\u01a1ng th\u1ee9c)<\/p>\n<ul>\n<li>\n<p>C\u00e1c thao t\u00e1c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf ph\u1ea7n th\u1ee9 ba. Ch\u00fang l\u00e0 c\u00e1c d\u1ecbch v\u1ee5 m\u00e0 l\u1edbp cung c\u1ea5p.<\/p>\n<\/li>\n<li>\n<p>Lo\u1ea1i tr\u1ea3 v\u1ec1 c\u1ee7a m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m \u1edf cu\u1ed1i k\u00fd hi\u1ec7u ph\u01b0\u01a1ng th\u1ee9c.<\/p>\n<\/li>\n<li>\n<p>Lo\u1ea1i tr\u1ea3 v\u1ec1 c\u1ee7a tham s\u1ed1 ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m ngay sau t\u00ean tham s\u1ed1.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thao t\u00e1c t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c l\u1edbp trong m\u00e3 ngu\u1ed3n<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><img alt=\"Simple class\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/02-simple-class.png\"\/><\/p>\n<p>Bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a l\u1edbp \u2013 MyClass nh\u01b0 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf tr\u00ean:<\/p>\n<ul>\n<li>\n<p>MyClass c\u00f3 3 thu\u1ed9c t\u00ednh v\u00e0 3 thao t\u00e1c<\/p>\n<\/li>\n<li>\n<p>Tham s\u1ed1 p3 c\u1ee7a op2 c\u00f3 ki\u1ec3u int<\/p>\n<\/li>\n<li>\n<p>op2 tr\u1ea3 v\u1ec1 m\u1ed9t gi\u00e1 tr\u1ecb float<\/p>\n<\/li>\n<li>\n<p>op3 tr\u1ea3 v\u1ec1 m\u1ed9t con tr\u1ecf (\u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u b\u1eb1ng d\u1ea5u *) \u0111\u1ebfn l\u1edbp Class6<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>M\u1ed1i quan h\u1ec7 l\u1edbp<\/h2>\n<p>M\u1ed9t l\u1edbp c\u00f3 th\u1ec3 tham gia v\u00e0o m\u1ed9t ho\u1eb7c nhi\u1ec1u m\u1ed1i quan h\u1ec7 v\u1edbi c\u00e1c l\u1edbp kh\u00e1c. M\u1ed9t m\u1ed1i quan h\u1ec7 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t trong c\u00e1c lo\u1ea1i sau:<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i m\u1ed1i quan h\u1ec7<\/th>\n<th>Bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>K\u1ebf th\u1eeba<\/strong>\u00a0(hay T\u1ed5ng qu\u00e1t h\u00f3a):<\/p>\n<ul>\n<li>Bi\u1ec3u di\u1ec5n m\u1ed1i quan h\u1ec7 \u201cl\u00e0 m\u1ed9t\u201d.<\/li>\n<li>T\u00ean l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb in nghi\u00eang.<\/li>\n<li>SubClass1 v\u00e0 SubClass2 l\u00e0 c\u00e1c chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a l\u1edbp Cha.<\/li>\n<li>M\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean r\u1ed7ng ch\u1ec9 t\u1eeb l\u1edbp con \u0111\u1ebfn l\u1edbp cha<\/li>\n<\/ul>\n<\/td>\n<td><img alt=\"Inheritance\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/03-inheritance.png\"\/><\/td>\n<\/tr>\n<tr>\n<td><strong>Li\u00ean k\u1ebft \u0111\u01a1n gi\u1ea3n<\/strong>:<\/p>\n<ul>\n<li>M\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac gi\u1eefa hai l\u1edbp ngang h\u00e0ng.<\/li>\n<li>C\u00f3 m\u1ed9t m\u1ed1i quan h\u1ec7 gi\u1eefa Class1 v\u00e0 Class2<\/li>\n<li>M\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n n\u1ed1i hai l\u1edbp<\/li>\n<\/ul>\n<\/td>\n<td><img alt=\"Simple association\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/04-simple-association.png\"\/><\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1ef1 k\u1ebft h\u1ee3p<\/strong>:<br \/>\nM\u1ed9t lo\u1ea1i quan h\u1ec7 \u0111\u1eb7c bi\u1ec7t. N\u00f3 bi\u1ec3u di\u1ec5n m\u1ed1i quan h\u1ec7 &#8220;thu\u1ed9c v\u1ec1 m\u1ed9t ph\u1ea7n&#8221;.<\/p>\n<ul>\n<li>Class2 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Class1.<\/li>\n<li>Nhi\u1ec1u th\u1ec3 hi\u1ec7n (\u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u b\u1eb1ng d\u1ea5u *) c\u1ee7a Class2 c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi Class1.<\/li>\n<li>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a Class1 v\u00e0 Class2 c\u00f3 v\u00f2ng \u0111\u1eddi ri\u00eang bi\u1ec7t.<\/li>\n<li>M\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi m\u1ed9t h\u00ecnh thoi tr\u1ed1ng \u1edf \u0111\u1ea7u m\u1ed1i quan h\u1ec7 n\u1ed1i v\u1edbi l\u1edbp t\u1ed5ng h\u1ee3p<\/li>\n<\/ul>\n<\/td>\n<td><img alt=\"Aggregation\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/05-aggregation.png\"\/><\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1ef1 k\u1ebft h\u1ee3p<\/strong>:<br \/>\nM\u1ed9t lo\u1ea1i \u0111\u1eb7c bi\u1ec7t c\u1ee7a s\u1ef1 k\u1ebft h\u1ee3p, n\u01a1i c\u00e1c ph\u1ea7n b\u1ecb h\u1ee7y khi to\u00e0n b\u1ed9 b\u1ecb h\u1ee7y.<\/p>\n<ul>\n<li>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a Class2 s\u1ed1ng v\u00e0 ch\u1ebft c\u00f9ng Class1.<\/li>\n<li>Class2 kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp.<\/li>\n<li>M\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi m\u1ed9t h\u00ecnh thoi \u0111\u1ea7y \u1edf \u0111\u1ea7u m\u1ed1i quan h\u1ec7 n\u1ed1i v\u1edbi l\u1edbp t\u1ed5ng h\u1ee3p<\/li>\n<\/ul>\n<\/td>\n<td><img alt=\"Composition\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/06-composition.png\"\/><\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1ef1 ph\u1ee5 thu\u1ed9c<\/strong>:<\/p>\n<ul>\n<li>T\u1ed3n t\u1ea1i gi\u1eefa hai l\u1edbp n\u1ebfu vi\u1ec7c thay \u0111\u1ed5i \u0111\u1ecbnh ngh\u0129a c\u1ee7a m\u1ed9t l\u1edbp c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn thay \u0111\u1ed5i \u1edf l\u1edbp kia (nh\u01b0ng kh\u00f4ng ng\u01b0\u1ee3c l\u1ea1i).<\/li>\n<li>Class1 ph\u1ee5 thu\u1ed9c v\u00e0o Class2<\/li>\n<li>M\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t v\u1edbi m\u0169i t\u00ean h\u1edf<\/li>\n<\/ul>\n<\/td>\n<td><img alt=\"Dependency\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/07-dependency.png\"\/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>T\u00ean m\u1ed1i quan h\u1ec7<\/h3>\n<ul>\n<li>\n<p>T\u00ean c\u00e1c m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c vi\u1ebft \u1edf gi\u1eefa \u0111\u01b0\u1eddng n\u1ed1i quan h\u1ec7.<\/p>\n<\/li>\n<li>\n<p>T\u00ean m\u1ed1i quan h\u1ec7 t\u1ed1t s\u1ebd c\u00f3 \u00fd ngh\u0129a khi b\u1ea1n \u0111\u1ecdc to ra:<\/p>\n<ul>\n<li>\n<p>\u201cM\u1ed7i b\u1ea3ng t\u00ednh\u00a0<strong>ch\u1ee9a<\/strong>\u00a0m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng nh\u1ea5t \u0111\u1ecbnh c\u00e1c \u00f4 t\u1ebf b\u00e0o\u201d,<\/p>\n<\/li>\n<li>\n<p>\u201cm\u1ed9t bi\u1ec3u th\u1ee9c\u00a0<strong>\u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00e0nh<\/strong>\u00a0m\u1ed9t gi\u00e1 tr\u1ecb&#8221;<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Ch\u00fang th\u01b0\u1eddng c\u00f3 m\u1ed9t\u00a0<strong>\u0111\u1ea7u m\u0169i t\u00ean nh\u1ecf \u0111\u1ec3 ch\u1ec9 h\u01b0\u1edbng<\/strong>\u00a0theo h\u01b0\u1edbng n\u00e0o \u0111\u1ec3 \u0111\u1ecdc m\u1ed1i quan h\u1ec7, v\u00ed d\u1ee5: bi\u1ec3u th\u1ee9c \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00e0nh gi\u00e1 tr\u1ecb, nh\u01b0ng gi\u00e1 tr\u1ecb th\u00ec kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00e0nh bi\u1ec3u th\u1ee9c.<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Relationship name\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/08-relationship-name.png\"\/><\/p>\n<h3>M\u1ed1i quan h\u1ec7 \u2013 Vai tr\u00f2<\/h3>\n<ul>\n<li>\n<p>M\u1ed9t vai tr\u00f2 l\u00e0 m\u1ee5c \u0111\u00edch \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a m\u1ed9t li\u00ean k\u1ebft.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c vai tr\u00f2 \u0111\u01b0\u1ee3c vi\u1ebft \u1edf hai \u0111\u1ea7u c\u1ee7a \u0111\u01b0\u1eddng li\u00ean k\u1ebft v\u00e0 m\u00f4 t\u1ea3 m\u1ee5c \u0111\u00edch m\u00e0 l\u1edbp \u0111\u00f3 \u0111\u00f3ng trong m\u1ed1i quan h\u1ec7.<\/p>\n<ul>\n<li>\n<p>V\u00ed d\u1ee5: M\u1ed9t \u00f4 li\u00ean quan \u0111\u1ebfn m\u1ed9t bi\u1ec3u th\u1ee9c. B\u1ea3n ch\u1ea5t c\u1ee7a m\u1ed1i quan h\u1ec7 l\u00e0 bi\u1ec3u th\u1ee9c l\u00e0\u00a0<strong>c\u00f4ng th\u1ee9c<\/strong>\u00a0c\u1ee7a \u00f4.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Kh\u1ea3 n\u0103ng \u0111i\u1ec1u h\u01b0\u1edbng<\/h3>\n<p>C\u00e1c m\u0169i t\u00ean cho bi\u1ebft, khi c\u00f3 m\u1ed9t th\u1ec3 hi\u1ec7n tham gia v\u00e0o m\u1ed9t m\u1ed1i quan h\u1ec7, li\u1ec7u c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c th\u1ec3 hi\u1ec7n c\u1ee7a l\u1edbp kia c\u00f3 li\u00ean quan \u0111\u1ebfn n\u00f3 hay kh\u00f4ng.<\/p>\n<p>S\u01a1 \u0111\u1ed3 tr\u00ean cho th\u1ea5y r\u1eb1ng:<\/p>\n<ul>\n<li>\n<p>Cho m\u1ed9t b\u1ea3ng t\u00ednh, ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c \u00f4 m\u00e0 n\u00f3 ch\u1ee9a, nh\u01b0ng ta kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c t\u1eeb m\u1ed9t \u00f4 th\u00ec n\u00f3 n\u1eb1m trong b\u1ea3ng t\u00ednh n\u00e0o.<\/p>\n<\/li>\n<li>\n<p>Cho m\u1ed9t \u00f4, ta c\u00f3 th\u1ec3 l\u1ea5y \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ee9c v\u00e0 gi\u00e1 tr\u1ecb li\u00ean quan, nh\u01b0ng cho m\u1ed9t gi\u00e1 tr\u1ecb (ho\u1eb7c bi\u1ec3u th\u1ee9c), ta kh\u00f4ng th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c \u00f4 m\u00e0 ch\u00fang l\u00e0 thu\u1ed9c t\u00ednh.<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>T\u00ednh kh\u1ea3 ki\u1ebfn c\u1ee7a thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c l\u1edbp<\/h2>\n<p>Trong thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, c\u00f3 k\u00fd hi\u1ec7u v\u1ec1 t\u00ednh kh\u1ea3 ki\u1ebfn cho thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c. UML x\u00e1c \u0111\u1ecbnh b\u1ed1n lo\u1ea1i t\u00ednh kh\u1ea3 ki\u1ebfn:\u00a0<strong>c\u00f4ng khai<\/strong>,\u00a0<strong>b\u1ea3o v\u1ec7<\/strong>,\u00a0<strong>ri\u00eang t\u01b0<\/strong>, v\u00e0\u00a0<strong>g\u00f3i<\/strong>.<\/p>\n<p>C\u00e1c k\u00fd hi\u1ec7u +, -, # v\u00e0 ~ tr\u01b0\u1edbc t\u00ean thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c trong m\u1ed9t l\u1edbp bi\u1ec3u th\u1ecb t\u00ednh kh\u1ea3 ki\u1ebfn c\u1ee7a thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c:<\/p>\n<ul>\n<li>\n<ul>\n<li>\n<p>bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c c\u00f4ng khai<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u2013 bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c ri\u00eang t\u01b0<\/p>\n<\/li>\n<li>\n<p># bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c b\u1ea3o v\u1ec7<\/p>\n<\/li>\n<li>\n<p>~ bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c g\u00f3i<\/p>\n<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5 v\u1ec1 \u0111\u1ed9 hi\u1ec3n th\u1ecb l\u1edbp<\/h3>\n<p><img alt=\"Simple Class\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/02-simple-class.png\"\/><\/p>\n<p>Trong v\u00ed d\u1ee5 tr\u00ean:<\/p>\n<ul>\n<li>\n<p>attribute1 v\u00e0 op1 c\u1ee7a MyClassName l\u00e0 c\u00f4ng khai<\/p>\n<\/li>\n<li>\n<p>attribute3 v\u00e0 op3 l\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/p>\n<\/li>\n<li>\n<p>attribute2 v\u00e0 op2 l\u00e0 ri\u00eang t\u01b0<\/p>\n<\/li>\n<\/ul>\n<p>Quy\u1ec1n truy c\u1eadp cho t\u1eebng lo\u1ea1i \u0111\u1ed9 hi\u1ec3n th\u1ecb \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ed1i v\u1edbi c\u00e1c th\u00e0nh vi\u00ean c\u1ee7a c\u00e1c l\u1edbp kh\u00e1c nhau:<\/p>\n<table>\n<thead>\n<tr>\n<th>Quy\u1ec1n truy c\u1eadp<\/th>\n<th>c\u00f4ng khai (+)<\/th>\n<th>ri\u00eang t\u01b0 (-)<\/th>\n<th>\u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 (#)<\/th>\n<th>G\u00f3i (~)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Th\u00e0nh vi\u00ean c\u1ee7a c\u00f9ng m\u1ed9t l\u1edbp<\/td>\n<td>c\u00f3<\/td>\n<td>c\u00f3<\/td>\n<td>c\u00f3<\/td>\n<td>c\u00f3<\/td>\n<\/tr>\n<tr>\n<td>Th\u00e0nh vi\u00ean c\u1ee7a c\u00e1c l\u1edbp \u0111\u01b0\u1ee3c d\u1eabn xu\u1ea5t<\/td>\n<td>c\u00f3<\/td>\n<td>kh\u00f4ng<\/td>\n<td>c\u00f3<\/td>\n<td>c\u00f3<\/td>\n<\/tr>\n<tr>\n<td>Th\u00e0nh vi\u00ean c\u1ee7a b\u1ea5t k\u1ef3 l\u1edbp n\u00e0o kh\u00e1c<\/td>\n<td>c\u00f3<\/td>\n<td>kh\u00f4ng<\/td>\n<td>kh\u00f4ng<\/td>\n<td>trong c\u00f9ng m\u1ed9t g\u00f3i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr\/>\n<h2>\u0110a d\u1ea1ng<\/h2>\n<p>C\u00f3 bao nhi\u00eau \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a m\u1ed7i l\u1edbp tham gia v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 \u0111a d\u1ea1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n nh\u01b0:<\/p>\n<ul>\n<li>\n<p>Ch\u00ednh x\u00e1c m\u1ed9t \u2013 1<\/p>\n<\/li>\n<li>\n<p>Kh\u00f4ng ho\u1eb7c m\u1ed9t \u2013 0..1<\/p>\n<\/li>\n<li>\n<p>Nhi\u1ec1u \u2013 0..* ho\u1eb7c *<\/p>\n<\/li>\n<li>\n<p>M\u1ed9t ho\u1eb7c nhi\u1ec1u \u2013 1..*<\/p>\n<\/li>\n<li>\n<p>S\u1ed1 l\u01b0\u1ee3ng ch\u00ednh x\u00e1c \u2013 v\u00ed d\u1ee5: 3..4 ho\u1eb7c 6<\/p>\n<\/li>\n<li>\n<p>Ho\u1eb7c m\u1ed9t m\u1ed1i quan h\u1ec7 ph\u1ee9c t\u1ea1p \u2013 v\u00ed d\u1ee5: 0..1, 3..4, 6.* c\u00f3 ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o ngo\u1ea1i tr\u1eeb 2 ho\u1eb7c 5<\/p>\n<\/li>\n<\/ul>\n<h3>V\u00ed d\u1ee5 v\u1ec1 b\u1ed9i s\u1ed1<\/h3>\n<ul>\n<li>\n<p>Y\u00eau c\u1ea7u: M\u1ed9t sinh vi\u00ean c\u00f3 th\u1ec3 tham gia nhi\u1ec1u kh\u00f3a h\u1ecdc v\u00e0 nhi\u1ec1u sinh vi\u00ean c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd v\u00e0o m\u1ed9t kh\u00f3a h\u1ecdc.<\/p>\n<\/li>\n<li>\n<p>Trong v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y,\u00a0<strong>s\u01a1 \u0111\u1ed3 l\u1edbp<\/strong>\u00a0(b\u00ean tr\u00e1i), m\u00f4 t\u1ea3 ph\u00e1t bi\u1ec3u y\u00eau c\u1ea7u ph\u00eda tr\u00ean cho m\u00f4 h\u00ecnh t\u0129nh, trong khi s\u01a1 \u0111\u1ed3 \u0111\u1ed1i t\u01b0\u1ee3ng (b\u00ean ph\u1ea3i) hi\u1ec3n th\u1ecb b\u1ea3n ch\u1ee5p (m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp) v\u1ec1 \u0111\u0103ng k\u00fd kh\u00f3a h\u1ecdc cho c\u00e1c kh\u00f3a h\u1ecdc K\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 Qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u t\u01b0\u01a1ng \u1ee9ng)<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Object Diagram\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/09-class-diagram-to-object-diagram.png\"\/><\/p>\n<hr\/>\n<h2>V\u00ed d\u1ee5 v\u1ec1 t\u00edch h\u1ee3p \u2013 M\u00e1y t\u00ednh v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn<\/h2>\n<ul>\n<li>\n<p>M\u1ed9t s\u1ef1 t\u00edch h\u1ee3p l\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t c\u1ee7a m\u1ed1i quan h\u1ec7, bi\u1ec3u th\u1ecb m\u1ed9t c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p \u201cg\u1ed3m c\u00f3\u201d<\/p>\n<\/li>\n<li>\n<p>L\u1edbp t\u1ed5ng h\u1ee3p l\u00e0 l\u1edbp cha, c\u00e1c th\u00e0nh ph\u1ea7n l\u00e0 c\u00e1c l\u1edbp con<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Aggregation Example\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/10-aggregation-example.png\"\/><\/p>\n<hr\/>\n<h2>V\u00ed d\u1ee5 v\u1ec1 k\u1ebf th\u1eeba \u2013 Ph\u00e2n lo\u1ea1i t\u1ebf b\u00e0o<\/h2>\n<ul>\n<li>\n<p>K\u1ebf th\u1eeba l\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t kh\u00e1c c\u1ee7a m\u1ed1i quan h\u1ec7, bi\u1ec3u th\u1ecb m\u1ed9t c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p \u201clo\u1ea1i\u201d<\/p>\n<\/li>\n<li>\n<p>K\u1ebf th\u1eeba \u0111\u01a1n gi\u1ea3n h\u00f3a m\u00f4 h\u00ecnh ph\u00e2n t\u00edch b\u1eb1ng c\u00e1ch gi\u1edbi thi\u1ec7u m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i<\/p>\n<\/li>\n<li>\n<p>C\u00e1c l\u1edbp con k\u1ebf th\u1eeba thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c t\u1eeb l\u1edbp cha.<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Inheritance Example\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/11-inheritance-example.png\"\/><\/p>\n<hr\/>\n<h2>S\u01a1 \u0111\u1ed3 l\u1edbp \u2013 V\u00ed d\u1ee5 v\u1ec1 c\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3<\/h2>\n<p>S\u01a1 \u0111\u1ed3 l\u1edbp c\u0169ng c\u00f3 th\u1ec3 c\u00f3 ghi ch\u00fa \u0111\u00ednh k\u00e8m v\u00e0o c\u00e1c l\u1edbp ho\u1eb7c m\u1ed1i quan h\u1ec7. C\u00e1c ghi ch\u00fa \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u00e0u x\u00e1m.<\/p>\n<p><img alt=\"Class Diagram Example\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/what-is-class-diagram\/12-uml-class-diagram-example.png\"\/><\/p>\n<p>Trong v\u00ed d\u1ee5 tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp b\u1eb1ng c\u00e1ch \u0111\u1ecdc qua c\u00e1c \u0111i\u1ec3m nh\u01b0 sau:<\/p>\n<ol>\n<li>\n<p>Shape l\u00e0 m\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng. N\u00f3 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng ch\u1eef nghi\u00eang.<\/p>\n<\/li>\n<li>\n<p>Shape l\u00e0 m\u1ed9t l\u1edbp si\u00eau. Circle, Rectangle v\u00e0 Polygon \u0111\u01b0\u1ee3c suy ra t\u1eeb Shape. N\u00f3i c\u00e1ch kh\u00e1c, m\u1ed9t Circle l\u00e0 m\u1ed9t Shape. \u0110\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 t\u1ed5ng qu\u00e1t h\u00f3a \/ k\u1ebf th\u1eeba.<\/p>\n<\/li>\n<li>\n<p>C\u00f3 m\u1ed9t m\u1ed1i quan h\u1ec7 gi\u1eefa DialogBox v\u00e0 DataController.<\/p>\n<\/li>\n<li>\n<p>Shape l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Window. \u0110\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 t\u00edch h\u1ee3p. Shape c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i m\u00e0 kh\u00f4ng c\u1ea7n Window.<\/p>\n<\/li>\n<li>\n<p>Point l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Circle. \u0110\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 k\u1ebft h\u1ee3p. Point kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 Circle.<\/p>\n<\/li>\n<li>\n<p>Window ph\u1ee5 thu\u1ed9c v\u00e0o Event. Tuy nhi\u00ean, Event kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o Window.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a Circle l\u00e0 radius v\u00e0 center. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1edbp th\u1ef1c th\u1ec3.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c t\u00ean ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a Circle l\u00e0 area(), circum(), setCenter() v\u00e0 setRadius().<\/p>\n<\/li>\n<li>\n<p>Tham s\u1ed1 radius trong Circle l\u00e0 m\u1ed9t tham s\u1ed1 \u0111\u1ea7u v\u00e0o ki\u1ec3u float.<\/p>\n<\/li>\n<li>\n<p>Ph\u01b0\u01a1ng th\u1ee9c area() c\u1ee7a l\u1edbp Circle tr\u1ea3 v\u1ec1 m\u1ed9t gi\u00e1 tr\u1ecb ki\u1ec3u double.<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh v\u00e0 t\u00ean ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a Rectangle b\u1ecb \u1ea9n. M\u1ed9t s\u1ed1 l\u1edbp kh\u00e1c trong s\u01a1 \u0111\u1ed3 c\u0169ng c\u00f3 thu\u1ed9c t\u00ednh v\u00e0 t\u00ean ph\u01b0\u01a1ng th\u1ee9c b\u1ecb \u1ea9n.<\/p>\n<\/li>\n<\/ol>\n<hr\/>\n<h2>M\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi AI: S\u1ef1 ph\u1ee5c h\u01b0ng linh ho\u1ea1t c\u1ee7a UML<\/h2>\n<blockquote>\n<p><em>\u201cV\u00ec m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi AI \u0111\u00e3 tr\u1edf n\u00ean r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ph\u01b0\u01a1ng ph\u00e1p Agile, nhi\u1ec1u \u0111\u1ed9i ng\u0169 \u0111ang quay tr\u1edf l\u1ea1i s\u1eed d\u1ee5ng UML v\u1edbi ph\u1ea3n h\u1ed3i r\u1ea5t t\u00edch c\u1ef1c.\u201d<\/em><\/p>\n<\/blockquote>\n<p>Vi\u1ec7c t\u00edch h\u1ee3p tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan \u0111\u00e3 thay \u0111\u1ed5i c\u00e1ch c\u00e1c \u0111\u1ed9i ng\u0169 ti\u1ebfp c\u1eadn s\u01a1 \u0111\u1ed3 l\u1edbp UML trong m\u00f4i tr\u01b0\u1eddng Agile:<\/p>\n<h3>T\u1ea1i sao c\u00e1c \u0111\u1ed9i ng\u0169 \u0111ang quay tr\u1edf l\u1ea1i v\u1edbi UML nh\u1edd AI<\/h3>\n<p>\u2705\u00a0<strong>Th\u1eed nghi\u1ec7m nhanh<\/strong>: AI c\u00f3 th\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp ban \u0111\u1ea7u t\u1eeb y\u00eau c\u1ea7u b\u1eb1ng ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean, \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh l\u1eadp k\u1ebf ho\u1ea1ch sprint<br \/>\n\u2705\u00a0<strong>T\u00e0i li\u1ec7u s\u1ed1ng \u0111\u1ed9ng<\/strong>: C\u00e1c s\u01a1 \u0111\u1ed3 t\u1ef1 c\u1eadp nh\u1eadt khi m\u00e3 ngu\u1ed3n thay \u0111\u1ed5i, duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9 gi\u1eefa thi\u1ebft k\u1ebf v\u00e0 tri\u1ec3n khai<br \/>\n\u2705\u00a0<strong>S\u1ef1 r\u00f5 r\u00e0ng h\u1ee3p t\u00e1c<\/strong>: C\u00e1c m\u00f4 h\u00ecnh tr\u1ef1c quan gi\u00fap l\u1ea5p \u0111\u1ea7y kho\u1ea3ng c\u00e1ch giao ti\u1ebfp gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, ch\u1ee7 s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c b\u00ean li\u00ean quan<br \/>\n\u2705\u00a0<strong>H\u1ed7 tr\u1ee3 t\u00e1i c\u1ea5u tr\u00fac<\/strong>: AI \u0111\u1ec1 xu\u1ea5t c\u1ea3i ti\u1ebfn c\u1ea5u tr\u00fac v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u thi\u1ebft k\u1ebf k\u00e9m tr\u01b0\u1edbc khi vi\u1ebft m\u00e3<br \/>\n\u2705\u00a0<strong>T\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh l\u00e0m quen<\/strong>: Th\u00e0nh vi\u00ean m\u1edbi n\u1eafm b\u1eaft ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng nhanh h\u01a1n nh\u1edd c\u00e1c s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c<\/p>\n<h3>H\u1ed7 tr\u1ee3 AI \u0111a n\u1ec1n t\u1ea3ng<\/h3>\n<ul>\n<li>\n<p><strong>VP Desktop<\/strong>: T\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp th\u00f4ng qua AI v\u00e0 s\u1eed d\u1ee5ng b\u1ed9 c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh chuy\u00ean nghi\u1ec7p \u0111\u1ec3 tinh ch\u1ec9nh n\u00e2ng cao<\/p>\n<\/li>\n<li>\n<p><strong>Tr\u1ee3 l\u00fd chatbot AI<\/strong>: Ch\u1ec9 c\u1ea7n m\u00f4 t\u1ea3 l\u0129nh v\u1ef1c c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1ec3\u00a0<a href=\"https:\/\/chat.visual-paradigm.com\/\">Tr\u1ee3 l\u00fd chatbot AI<\/a>\u00a0t\u1ea1o ra v\u00e0 ch\u1ec9nh s\u1eeda c\u1ea5u tr\u00fac l\u1edbp c\u1ee7a b\u1ea1n<\/p>\n<\/li>\n<li>\n<p><strong>OpenDocs<\/strong>: Ch\u00e8n tr\u1ef1c ti\u1ebfp s\u01a1 \u0111\u1ed3 l\u1edbp do AI t\u1ea1o v\u00e0o trang c\u1ee7a b\u1ea1n\u00a0<a href=\"https:\/\/ai.visual-paradigm.com\/tool\/opendocs\">OpenDocs<\/a>\u00a0\u0111\u1ec3 c\u00f3 t\u00e0i li\u1ec7u tr\u1ef1c ti\u1ebfp<\/p>\n<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng bi\u1ec3u \u0111\u1ed3 l\u1edbp chuy\u00ean bi\u1ec7t<\/h3>\n<p>\u26a1\u00a0<a href=\"https:\/\/ai.visual-paradigm.com\/tool\/ai-assisted-uml-class-diagram-generator\/\">B\u1ed9 h\u01b0\u1edbng d\u1eabn bi\u1ec3u \u0111\u1ed3 l\u1edbp AI<\/a>: Tr\u1ee3 l\u00fd t\u1eebng b\u01b0\u1edbc cho c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c<br \/>\n\ud83d\udd04\u00a0<a href=\"https:\/\/ai.visual-paradigm.com\/tool\/use-case-modeling-studio\/\">Studio Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>: T\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t c\u00e1c l\u1edbp mi\u1ec1n t\u1eeb m\u00f4 t\u1ea3 h\u00e0nh vi<br \/>\n\ud83d\ude80\u00a0<a href=\"https:\/\/agilien.visual-paradigm.com\/\">Agilien<\/a>: K\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp c\u00e1c c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng\/Ti\u00eau \u0111\u1ec1 l\u1edbn v\u1edbi c\u00e1c m\u00f4 h\u00ecnh UML c\u1ea5u tr\u00fac<br \/>\n\ud83d\udcbe\u00a0<a href=\"https:\/\/ai.visual-paradigm.com\/tool\/dbmodeler-ai\/\">AI M\u00f4 h\u00ecnh h\u00f3a C\u01a1 s\u1edf d\u1eef li\u1ec7u<\/a>: T\u1ea1o c\u00e1c bi\u1ec3u \u0111\u1ed3 l\u1edbp mi\u1ec1n kh\u00e1i ni\u1ec7m cho thi\u1ebft k\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u<br \/>\n\ud83c\udfdb\ufe0f\u00a0<a href=\"https:\/\/ai.visual-paradigm.com\/tool\/ai-mvc-system-architecture-generator\/\">Ki\u1ebfn tr\u00fac MVC<\/a>: T\u1ea1o c\u00e1c bi\u1ec3u \u0111\u1ed3 l\u1edbp \u0111i\u1ec1u khi\u1ec3n chuy\u00ean bi\u1ec7t<\/p>\n<p>Kh\u00e1m ph\u00e1 c\u00e1ch l\u00e0m ch\u1ee7 bi\u1ec3u \u0111\u1ed3 l\u1edbp v\u1edbi AI:<br \/>\n<a href=\"https:\/\/guides.visual-paradigm.com\/ai-class-diagram-generator-by-visual-paradigm\/\">H\u01b0\u1edbng d\u1eabn bi\u1ec3u \u0111\u1ed3 l\u1edbp AI<\/a>\u00a0|\u00a0<a href=\"https:\/\/guides.visual-paradigm.com\/best-ai-diagram-generator-visual-paradigm-ecosystem\/\">H\u1ec7 sinh th\u00e1i AI to\u00e0n di\u1ec7n<\/a><\/p>\n<hr\/>\n<h2>X\u1eed l\u00fd c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p: Nhi\u1ec1u hay m\u1ed9t bi\u1ec3u \u0111\u1ed3 l\u1edbp?<\/h2>\n<p>Kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi, n\u1ebfu b\u1ea1n \u0111ang m\u00f4 h\u00ecnh h\u00f3a m\u1ed9t h\u1ec7 th\u1ed1ng l\u1edbn ho\u1eb7c m\u1ed9t khu v\u1ef1c kinh doanh l\u1edbn, s\u1ebd c\u00f3 r\u1ea5t nhi\u1ec1u th\u1ef1c th\u1ec3 b\u1ea1n c\u1ea7n xem x\u00e9t. Ch\u00fang ta n\u00ean s\u1eed d\u1ee5ng nhi\u1ec1u bi\u1ec3u \u0111\u1ed3 l\u1edbp hay ch\u1ec9 m\u1ed9t bi\u1ec3u \u0111\u1ed3 l\u1edbp \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a v\u1ea5n \u0111\u1ec1? C\u00e2u tr\u1ea3 l\u1eddi l\u00e0:<\/p>\n<ul>\n<li>\n<p>Thay v\u00ec m\u00f4 h\u00ecnh h\u00f3a m\u1ecdi th\u1ef1c th\u1ec3 v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang tr\u00ean m\u1ed9t bi\u1ec3u \u0111\u1ed3 l\u1edbp duy nh\u1ea5t, t\u1ed1t h\u01a1n h\u1ebft l\u00e0 s\u1eed d\u1ee5ng nhi\u1ec1u bi\u1ec3u \u0111\u1ed3 l\u1edbp<\/p>\n<\/li>\n<li>\n<p>Chia h\u1ec7 th\u1ed1ng th\u00e0nh nhi\u1ec1u bi\u1ec3u \u0111\u1ed3 l\u1edbp gi\u00fap h\u1ec7 th\u1ed1ng d\u1ec5 hi\u1ec3u h\u01a1n, \u0111\u1eb7c bi\u1ec7t n\u1ebfu m\u1ed7i bi\u1ec3u \u0111\u1ed3 l\u00e0 m\u1ed9t bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ed9t ph\u1ea7n c\u1ee5 th\u1ec3 trong h\u1ec7 th\u1ed1ng<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>G\u00f3c nh\u00ecn v\u1ec1 bi\u1ec3u \u0111\u1ed3 l\u1edbp trong v\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m<\/h2>\n<p>Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 l\u1edbp trong c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n kh\u00e1c nhau c\u1ee7a m\u1ed9t<a href=\"https:\/\/en.wikipedia.org\/wiki\/Systems_development_life_cycle\">v\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m<\/a>v\u00e0 th\u01b0\u1eddng xuy\u00ean m\u00f4 h\u00ecnh h\u00f3a bi\u1ec3u \u0111\u1ed3 l\u1edbp theo ba g\u00f3c nh\u00ecn kh\u00e1c nhau (m\u1ee9c \u0111\u1ed9 chi ti\u1ebft) m\u1ed9t c\u00e1ch d\u1ea7n d\u1ea7n khi ch\u00fang ta ti\u1ebfn tri\u1ec3n:<\/p>\n<h3>G\u00f3c nh\u00ecn kh\u00e1i ni\u1ec7m<\/h3>\n<ul>\n<li>\n<p>C\u00e1c bi\u1ec3u \u0111\u1ed3 \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 m\u00f4 t\u1ea3 nh\u1eefng th\u1ee9 trong th\u1ebf gi\u1edbi th\u1ef1c<\/p>\n<\/li>\n<li>\n<p>\u0110\u1ea1i di\u1ec7n cho c\u00e1c kh\u00e1i ni\u1ec7m trong l\u0129nh v\u1ef1c \u0111ang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u<\/p>\n<\/li>\n<li>\n<p>C\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y s\u1ebd t\u1ef1 nhi\u00ean li\u00ean quan \u0111\u1ebfn c\u00e1c l\u1edbp th\u1ef1c hi\u1ec7n ch\u00fang<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ed9c l\u1eadp v\u1edbi ng\u00f4n ng\u1eef<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3>G\u00f3c nh\u00ecn m\u00f4 t\u1ea3<\/h3>\n<ul>\n<li>\n<p>C\u00e1c s\u01a1 \u0111\u1ed3 m\u00f4 t\u1ea3 c\u00e1c tr\u1eebu t\u01b0\u1ee3ng ho\u1eb7c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m v\u1edbi c\u00e1c \u0111\u1eb7c t\u1ea3 v\u00e0 giao di\u1ec7n<\/p>\n<\/li>\n<li>\n<p>Kh\u00f4ng cam k\u1ebft v\u1edbi m\u1ed9t c\u00e1ch tri\u1ec3n khai c\u1ee5 th\u1ec3 n\u00e0o<\/p>\n<\/li>\n<li>\n<p>T\u1eadp trung v\u00e0o\u00a0<strong>giao di\u1ec7n c\u1ee7a ph\u1ea7n m\u1ec1m<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1ch tri\u1ec3n khai<\/p>\n<\/li>\n<\/ul>\n<h3>G\u00f3c nh\u00ecn tri\u1ec3n khai<\/h3>\n<ul>\n<li>\n<p>C\u00e1c s\u01a1 \u0111\u1ed3 m\u00f4 t\u1ea3 c\u00e1c tri\u1ec3n khai ph\u1ea7n m\u1ec1m trong m\u1ed9t c\u00f4ng ngh\u1ec7 c\u1ee5 th\u1ec3 v\u00e0\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Programming_language\">ng\u00f4n ng\u1eef<\/a><\/p>\n<\/li>\n<li>\n<p>T\u1eadp trung v\u00e0o\u00a0<strong>tri\u1ec3n khai ph\u1ea7n m\u1ec1m<\/strong>\u00a0chi ti\u1ebft<\/p>\n<\/li>\n<\/ul>\n<p>The\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Unified_Modeling_Language\">UML<\/a>\u00a0S\u01a1 \u0111\u1ed3 l\u1edbp l\u00e0 k\u00fd hi\u1ec7u \u0111\u1ed3 h\u1ecda \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng v\u00e0 tr\u1ef1c quan h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. S\u01a1 \u0111\u1ed3 l\u1edbp trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML) l\u00e0 m\u1ed9t lo\u1ea1i s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac t\u0129nh m\u00f4 t\u1ea3 c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n sau c\u1ee7a h\u1ec7 th\u1ed1ng:<\/p>\n<ul>\n<li>\n<p>l\u1edbp<\/p>\n<\/li>\n<li>\n<p>c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a ch\u00fang<\/p>\n<\/li>\n<li>\n<p>c\u00e1c thao t\u00e1c (ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c)<\/p>\n<\/li>\n<li>\n<p>v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>L\u1edbp l\u00e0 g\u00ec? (T\u00ecm hi\u1ec3u s\u00e2u)<\/h2>\n<p>L\u1edbp l\u00e0 b\u1ea3n v\u1ebd m\u1eabu cho m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 l\u1edbp lu\u00f4n \u0111i \u0111\u00f4i v\u1edbi nhau. Ch\u00fang ta kh\u00f4ng th\u1ec3 n\u00f3i v\u1ec1 m\u1ed9t th\u1ee9 m\u00e0 kh\u00f4ng n\u00f3i \u0111\u1ebfn th\u1ee9 kia. V\u00e0 to\u00e0n b\u1ed9 m\u1ee5c \u0111\u00edch c\u1ee7a Thi\u1ebft k\u1ebf H\u01b0\u1edbng \u0110\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ec1 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, m\u00e0 l\u00e0 v\u1ec1 c\u00e1c l\u1edbp, b\u1edfi v\u00ec ch\u00fang ta s\u1eed d\u1ee5ng c\u00e1c l\u1edbp \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Do \u0111\u00f3, m\u1ed9t l\u1edbp m\u00f4 t\u1ea3 \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd nh\u01b0 th\u1ebf n\u00e0o, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ch\u00ednh \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3.<\/p>\n<p>Th\u1ef1c t\u1ebf, c\u00e1c l\u1edbp m\u00f4 t\u1ea3 ki\u1ec3u c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, trong khi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 c\u00e1c th\u1ec3 hi\u1ec7n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c l\u1edbp. M\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb c\u00f9ng m\u1ed9t b\u1ed9 b\u1ea3n v\u1ebd m\u1eabu v\u00e0 do \u0111\u00f3 ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n gi\u1ed1ng nhau (t\u00ednh ch\u1ea5t v\u00e0 ph\u01b0\u01a1ng th\u1ee9c). Ngh\u0129a chu\u1ea9n l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee7a m\u1ed9t l\u1edbp v\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 tr\u1ea1ng th\u00e1i v\u00e0 h\u00e0nh vi.<\/p>\n<h3>V\u00ed d\u1ee5<\/h3>\n<p>M\u1ed9t con ch\u00f3 c\u00f3 c\u00e1c tr\u1ea1ng th\u00e1i \u2013 m\u00e0u s\u1eafc, t\u00ean, gi\u1ed1ng lo\u00e0i c\u00f9ng v\u1edbi c\u00e1c h\u00e0nh vi \u2013 v\u1eaby \u0111u\u00f4i, s\u1ee7a, \u0103n. M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee7a m\u1ed9t l\u1edbp.<\/p>\n<p><img alt=\"What is a class?\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/01-uml-base-class-and-object-explained.png\"\/><\/p>\n<hr\/>\n<h2>K\u00fd hi\u1ec7u L\u1edbp UML (Chi ti\u1ebft)<\/h2>\n<p>M\u1ed9t l\u1edbp \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kh\u00e1i ni\u1ec7m bao g\u1ed3m tr\u1ea1ng th\u00e1i (<strong>thu\u1ed9c t\u00ednh<\/strong>) v\u00e0 h\u00e0nh vi (<strong>thao t\u00e1c<\/strong>). M\u1ed7i thu\u1ed9c t\u00ednh c\u00f3 m\u1ed9t ki\u1ec3u. M\u1ed7i\u00a0<strong>thao t\u00e1c<\/strong>\u00a0c\u00f3 m\u1ed9t\u00a0<strong>ch\u1eef k\u00fd<\/strong>.\u00a0<em>T\u00ean l\u1edbp l\u00e0\u00a0<strong>th\u00f4ng tin b\u1eaft bu\u1ed9c duy nh\u1ea5t<\/strong><\/em>.<\/p>\n<p><img alt=\"UML Class Notation\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/02-class-notation.png\"\/><\/p>\n<p><strong>T\u00ean l\u1edbp:<\/strong><\/p>\n<ul>\n<li>\n<p>T\u00ean l\u1edbp xu\u1ea5t hi\u1ec7n trong ph\u00e2n v\u00f9ng \u0111\u1ea7u ti\u00ean<\/p>\n<\/li>\n<\/ul>\n<p><strong>Thu\u1ed9c t\u00ednh l\u1edbp:<\/strong><\/p>\n<ul>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong ph\u00e2n v\u00f9ng th\u1ee9 hai<\/p>\n<\/li>\n<li>\n<p>Ki\u1ec3u thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thu\u1ed9c t\u00ednh \u00e1nh x\u1ea1 sang c\u00e1c bi\u1ebfn th\u00e0nh vi\u00ean (th\u00e0nh vi\u00ean d\u1eef li\u1ec7u) trong m\u00e3 ngu\u1ed3n<\/p>\n<\/li>\n<\/ul>\n<p><strong>C\u00e1c thao t\u00e1c l\u1edbp (ph\u01b0\u01a1ng th\u1ee9c):<\/strong><\/p>\n<ul>\n<li>\n<p>C\u00e1c thao t\u00e1c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong ph\u00e2n v\u00f9ng th\u1ee9 ba. Ch\u00fang l\u00e0 c\u00e1c d\u1ecbch v\u1ee5 m\u00e0 l\u1edbp cung c\u1ea5p<\/p>\n<\/li>\n<li>\n<p>Ki\u1ec3u tr\u1ea3 v\u1ec1 c\u1ee7a m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m \u1edf cu\u1ed1i ch\u1eef k\u00fd ph\u01b0\u01a1ng th\u1ee9c<\/p>\n<\/li>\n<li>\n<p>Ki\u1ec3u tr\u1ea3 v\u1ec1 c\u1ee7a tham s\u1ed1 ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb sau d\u1ea5u hai ch\u1ea5m theo sau t\u00ean tham s\u1ed1<\/p>\n<\/li>\n<li>\n<p>C\u00e1c thao t\u00e1c \u00e1nh x\u1ea1 sang c\u00e1c ph\u01b0\u01a1ng th\u1ee9c l\u1edbp trong m\u00e3 ngu\u1ed3n<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Class Operations\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/03-class-notation-with-examples.png\"\/><\/p>\n<h3>\u0110\u1ed9 kh\u1ea3 ki\u1ebfn l\u1edbp<\/h3>\n<p>C\u00e1c k\u00fd hi\u1ec7u +, \u2013 v\u00e0 # tr\u01b0\u1edbc t\u00ean thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c trong m\u1ed9t l\u1edbp bi\u1ec3u th\u1ecb \u0111\u1ed9 kh\u1ea3 ki\u1ebfn c\u1ee7a thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c \u0111\u00f3.<\/p>\n<p><img alt=\"Class Visibility\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/04-class-attributes-with-different-visibility.png\"\/><\/p>\n<ul>\n<li>\n<ul>\n<li>\n<p>bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c c\u00f4ng khai<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u2013 bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c ri\u00eang t\u01b0<\/p>\n<\/li>\n<li>\n<p># bi\u1ec3u th\u1ecb thu\u1ed9c t\u00ednh ho\u1eb7c thao t\u00e1c \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7<\/p>\n<\/li>\n<\/ul>\n<h3>H\u01b0\u1edbng c\u1ee7a tham s\u1ed1<\/h3>\n<p>M\u1ed7i tham s\u1ed1 trong m\u1ed9t thao t\u00e1c (ph\u01b0\u01a1ng th\u1ee9c) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 in,\u00a0<strong>out<\/strong>\u00a0ho\u1eb7c\u00a0<strong>inout<\/strong>\u00a0\u0111i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a n\u00f3 so v\u1edbi ng\u01b0\u1eddi g\u1ecdi. H\u01b0\u1edbng n\u00e0y \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u01b0\u1edbc t\u00ean tham s\u1ed1.<\/p>\n<p><img alt=\"Parameter Directionality\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/05-parameter-directionality.png\"\/><\/p>\n<hr\/>\n<h2>G\u00f3c nh\u00ecn c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp (H\u01b0\u1edbng d\u1eabn tr\u1ef1c quan)<\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn g\u00f3c nh\u00ecn ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ea1n \u0111\u00e3 ti\u1ebfn tri\u1ec3n \u0111\u1ebfn \u0111\u00e2u trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n. Trong giai \u0111o\u1ea1n x\u00e2y d\u1ef1ng m\u1ed9t\u00a0<strong>m\u00f4 h\u00ecnh mi\u1ec1n<\/strong>, v\u00ed d\u1ee5, b\u1ea1n hi\u1ebfm khi \u0111i qu\u00e1 xa kh\u1ecfi\u00a0<strong>g\u00f3c nh\u00ecn kh\u00e1i ni\u1ec7m<\/strong>.\u00a0<strong>m\u00f4 h\u00ecnh ph\u00e2n t\u00edch<\/strong>\u00a0th\u01b0\u1eddng bao g\u1ed3m s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a\u00a0<strong>g\u00f3c nh\u00ecn kh\u00e1i ni\u1ec7m v\u00e0 g\u00f3c nh\u00ecn m\u00f4 t\u1ea3<\/strong>.\u00a0<strong>m\u00f4 h\u00ecnh thi\u1ebft k\u1ebf<\/strong>\u00a0ph\u00e1t tri\u1ec3n th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u v\u1edbi s\u1ef1 nh\u1ea5n m\u1ea1nh l\u1edbn v\u00e0o\u00a0<strong>g\u00f3c nh\u00ecn m\u00f4 t\u1ea3<\/strong>, v\u00e0 d\u1ea7n ph\u00e1t tri\u1ec3n th\u00e0nh\u00a0<strong>g\u00f3c nh\u00ecn tri\u1ec3n khai<\/strong>.<\/p>\n<p>M\u1ed9t s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3u theo nhi\u1ec1u g\u00f3c nh\u00ecn kh\u00e1c nhau:<\/p>\n<ul>\n<li>\n<p><strong>Kh\u00e1i ni\u1ec7m<\/strong>: \u0111\u1ea1i di\u1ec7n cho c\u00e1c kh\u00e1i ni\u1ec7m trong mi\u1ec1n<\/p>\n<\/li>\n<li>\n<p><strong>M\u00f4 t\u1ea3<\/strong>: t\u1eadp trung v\u00e0o c\u00e1c giao di\u1ec7n c\u1ee7a Ki\u1ec3u D\u1eef li\u1ec7u Tr\u1eebu t\u01b0\u1ee3ng (ADTs) trong ph\u1ea7n m\u1ec1m<\/p>\n<\/li>\n<li>\n<p><strong>Tri\u1ec3n khai<\/strong>: m\u00f4 t\u1ea3 c\u00e1ch c\u00e1c l\u1edbp s\u1ebd tri\u1ec3n khai c\u00e1c giao di\u1ec7n c\u1ee7a ch\u00fang<\/p>\n<\/li>\n<\/ul>\n<p>G\u00f3c nh\u00ecn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0\u1ee3ng chi ti\u1ebft c\u1ea7n cung c\u1ea5p v\u00e0 lo\u1ea1i m\u1ed1i quan h\u1ec7 \u0111\u00e1ng \u0111\u1ec3 tr\u00ecnh b\u00e0y. Nh\u01b0 ch\u00fang t\u00f4i \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, t\u00ean l\u1edbp l\u00e0 th\u00f4ng tin b\u1eaft bu\u1ed9c duy nh\u1ea5t.<\/p>\n<p><img alt=\"Perspectives of Class Diagram\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/06-perspective-of-class-diagram.png\"\/><\/p>\n<hr\/>\n<h2>M\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c l\u1edbp (T\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u1ea7y \u0111\u1ee7)<\/h2>\n<p>UML kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 nh\u1eefng b\u1ee9c tranh \u0111\u1eb9p m\u1eaft. N\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch, UML s\u1ebd truy\u1ec1n \u0111\u1ea1t ch\u00ednh x\u00e1c c\u00e1ch m\u00e3 ngu\u1ed3n c\u1ea7n \u0111\u01b0\u1ee3c tri\u1ec3n khai t\u1eeb c\u00e1c s\u01a1 \u0111\u1ed3. N\u1ebfu \u0111\u01b0\u1ee3c hi\u1ec3u ch\u00ednh x\u00e1c, m\u00e3 ngu\u1ed3n \u0111\u00e3 tri\u1ec3n khai s\u1ebd ph\u1ea3n \u00e1nh \u0111\u00fang \u00fd \u0111\u1ed3 c\u1ee7a ng\u01b0\u1eddi thi\u1ebft k\u1ebf.<\/p>\n<p><img alt=\"Relationships between classes\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/07-relationships-between-classes.png\"\/><\/p>\n<h3>K\u1ebf th\u1eeba (hay T\u1ed5ng qu\u00e1t h\u00f3a)<\/h3>\n<p>T\u1ed5ng qu\u00e1t h\u00f3a l\u00e0 m\u1ed1i quan h\u1ec7 ph\u00e2n lo\u1ea1i gi\u1eefa m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i t\u1ed5ng qu\u00e1t h\u01a1n v\u00e0 m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i c\u1ee5 th\u1ec3 h\u01a1n. M\u1ed7i th\u1ec3 hi\u1ec7n c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i c\u1ee5 th\u1ec3 c\u0169ng l\u00e0 m\u1ed9t th\u1ec3 hi\u1ec7n gi\u00e1n ti\u1ebfp c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i t\u1ed5ng qu\u00e1t. Do \u0111\u00f3, b\u1ed9 ph\u00e2n lo\u1ea1i c\u1ee5 th\u1ec3 k\u1ebf th\u1eeba c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m t\u1eeb b\u1ed9 ph\u00e2n lo\u1ea1i t\u1ed5ng qu\u00e1t h\u01a1n.<\/p>\n<ul>\n<li>\n<p>\u0110\u4ee3\u8868 m\u1ed9t m\u1ed1i quan h\u1ec7 \u201cl\u00e0 m\u1ed9t\u201d<\/p>\n<\/li>\n<li>\n<p>T\u00ean m\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb in nghi\u00eang<\/p>\n<\/li>\n<li>\n<p>SubClass1 v\u00e0 SubClass2 l\u00e0 c\u00e1c chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a SuperClass<\/p>\n<\/li>\n<\/ul>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 c\u1ea5u tr\u00fac k\u1ebf th\u1eeba. SubClass1 v\u00e0 SubClass2 \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba t\u1eeb SuperClass. M\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean r\u1ed7ng, h\u01b0\u1edbng t\u1eeb ph\u1ea7n t\u1eed con \u0111\u1ebfn ph\u1ea7n t\u1eed cha.<\/p>\n<p><img alt=\"Inheritance (or Generalization)\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/08-inheritance-in-class-diagram.png\"\/><\/p>\n<h3>V\u00ed d\u1ee5 k\u1ebf th\u1eeba \u2013 H\u00ecnh d\u1ea1ng<\/h3>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 k\u1ebf th\u1eeba v\u1edbi hai phong c\u00e1ch kh\u00e1c nhau. M\u1eb7c d\u00f9 c\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1ebd theo c\u00e1ch kh\u00e1c nhau, nh\u01b0ng ch\u00fang t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1ec1 m\u1eb7t ng\u1eef ngh\u0129a.<\/p>\n<p><img alt=\"Inheritance Example - Shapes\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/09-inheritance-hierarchy-example.png\"\/><\/p>\n<h3>Li\u00ean k\u1ebft<\/h3>\n<p>C\u00e1c li\u00ean k\u1ebft l\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c l\u1edbp trong s\u01a1 \u0111\u1ed3 l\u1edbp UML. Ch\u00fang \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n gi\u1eefa c\u00e1c l\u1edbp. C\u00e1c li\u00ean k\u1ebft th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean b\u1eb1ng m\u1ed9t \u0111\u1ed9ng t\u1eeb ho\u1eb7c c\u1ee5m \u0111\u1ed9ng t\u1eeb ph\u1ea3n \u00e1nh l\u0129nh v\u1ef1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf.<\/p>\n<h3>Li\u00ean k\u1ebft \u0111\u01a1n gi\u1ea3n<\/h3>\n<ul>\n<li>\n<p>M\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac gi\u1eefa hai l\u1edbp ngang h\u00e0ng<\/p>\n<\/li>\n<li>\n<p>C\u00f3 m\u1ed9t li\u00ean k\u1ebft gi\u1eefa Class1 v\u00e0 Class2<\/p>\n<\/li>\n<\/ul>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 li\u00ean k\u1ebft \u0111\u01a1n gi\u1ea3n. C\u00f3 m\u1ed9t li\u00ean k\u1ebft k\u1ebft n\u1ed1i l\u1edbp &lt;&lt;control&gt;&gt; Class1 v\u00e0 l\u1edbp &lt;&lt;boundary&gt;&gt; Class2. M\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n n\u1ed1i hai l\u1edbp n\u00e0y.<\/p>\n<p><img alt=\"Simple Association\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/10-simple-association-example.png\"\/><\/p>\n<h3>S\u1ed1 l\u01b0\u1ee3ng<\/h3>\n<p>S\u1ed1 l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng:<\/p>\n<ul>\n<li>\n<p>m\u1ed9t \u0111\u1ebfn m\u1ed9t<\/p>\n<\/li>\n<li>\n<p>m\u1ed9t \u0111\u1ebfn nhi\u1ec1u<\/p>\n<\/li>\n<li>\n<p>nhi\u1ec1u \u0111\u1ebfn nhi\u1ec1u<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Cardinality\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/11-associations-with-different-multiplicies.png\"\/><\/p>\n<h3>T\u1ed5 h\u1ee3p<\/h3>\n<p>M\u1ed9t lo\u1ea1i li\u00ean k\u1ebft \u0111\u1eb7c bi\u1ec7t:<\/p>\n<ul>\n<li>\n<p>N\u00f3 \u0111\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 \u201cl\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a\u201d<\/p>\n<\/li>\n<li>\n<p>Class2 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Class1<\/p>\n<\/li>\n<li>\n<p>Nhi\u1ec1u th\u1ec3 hi\u1ec7n (\u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u b\u1eb1ng d\u1ea5u *) c\u1ee7a Class2 c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi Class1<\/p>\n<\/li>\n<li>\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a Class1 v\u00e0 Class2 c\u00f3 v\u00f2ng \u0111\u1eddi ri\u00eang bi\u1ec7t<\/p>\n<\/li>\n<\/ul>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 t\u1ed5 h\u1ee3p. M\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 h\u00ecnh thoi r\u1ed7ng \u1edf \u0111\u1ea7u li\u00ean k\u1ebft, \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi l\u1edbp \u0111\u1ea1i di\u1ec7n cho \u0111\u1ed1i t\u01b0\u1ee3ng t\u1ed5ng h\u1ee3p.<\/p>\n<p><img alt=\"Aggregation\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/12-aggregation.png\"\/><\/p>\n<h3>Th\u00e0nh ph\u1ea7n<\/h3>\n<ul>\n<li>\n<p>M\u1ed9t lo\u1ea1i \u0111\u1eb7c bi\u1ec7t c\u1ee7a t\u1ed5 h\u1ee3p, trong \u0111\u00f3 c\u00e1c ph\u1ea7n b\u1ecb h\u1ee7y khi to\u00e0n b\u1ed9 b\u1ecb h\u1ee7y<\/p>\n<\/li>\n<li>\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a Class2 s\u1ed1ng v\u00e0 ch\u1ebft c\u00f9ng v\u1edbi Class1<\/p>\n<\/li>\n<li>\n<p>Class2 kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp<\/p>\n<\/li>\n<\/ul>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 th\u00e0nh ph\u1ea7n. M\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 h\u00ecnh thoi \u0111\u1ea7y \u1edf \u0111\u1ea7u li\u00ean k\u1ebft, \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi l\u1edbp \u0111\u1ea1i di\u1ec7n cho to\u00e0n b\u1ed9 ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c h\u1ee3p.<\/p>\n<p><img alt=\"Composition\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/13-composition.png\"\/><\/p>\n<h3>Ph\u1ee5 thu\u1ed9c<\/h3>\n<p>M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a m\u1ed9t l\u1edbp c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a l\u1edbp kh\u00e1c trong m\u00e3 c\u1ee7a m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c. N\u1ebfu \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong b\u1ea5t k\u1ef3 tr\u01b0\u1eddng n\u00e0o, th\u00ec m\u1ed1i quan h\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a nh\u01b0 m\u1ed9t m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c.<\/p>\n<ul>\n<li>\n<p>M\u1ed9t lo\u1ea1i li\u00ean k\u1ebft \u0111\u1eb7c bi\u1ec7t<\/p>\n<\/li>\n<li>\n<p>T\u1ed3n t\u1ea1i gi\u1eefa hai l\u1edbp n\u1ebfu vi\u1ec7c thay \u0111\u1ed5i \u0111\u1ecbnh ngh\u0129a c\u1ee7a m\u1ed9t l\u1edbp c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn thay \u0111\u1ed5i \u1edf l\u1edbp kia (nh\u01b0ng kh\u00f4ng ng\u01b0\u1ee3c l\u1ea1i)<\/p>\n<\/li>\n<li>\n<p>L\u1edbp1 ph\u1ee5 thu\u1ed9c v\u00e0o L\u1edbp2<\/p>\n<\/li>\n<\/ul>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c. M\u1ed1i quan h\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t c\u00f3 m\u0169i t\u00ean m\u1edf.<\/p>\n<p><img alt=\"Dependency\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/14-dependency.png\"\/><\/p>\n<p>H\u00ecnh d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y m\u1ed9t v\u00ed d\u1ee5 kh\u00e1c v\u1ec1 m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c. L\u1edbp Person c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c hasRead v\u1edbi tham s\u1ed1 l\u00e0 Book, tr\u1ea3 v\u1ec1 true n\u1ebfu ng\u01b0\u1eddi \u0111\u00f3 \u0111\u00e3 \u0111\u1ecdc cu\u1ed1n s\u00e1ch (c\u00f3 th\u1ec3 b\u1eb1ng c\u00e1ch ki\u1ec3m tra m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u n\u00e0o \u0111\u00f3).<\/p>\n<p><img alt=\"Dependency\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/15-dependency-example.png\"\/><\/p>\n<h3>Th\u1ef1c hi\u1ec7n<\/h3>\n<p>Th\u1ef1c hi\u1ec7n l\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa l\u1edbp b\u1ea3n v\u1ebd v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee9a chi ti\u1ebft c\u1ea5p \u0111\u1ed9 tri\u1ec3n khai t\u01b0\u01a1ng \u1ee9ng. \u0110\u1ed1i t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u1ef1c hi\u1ec7n l\u1edbp b\u1ea3n v\u1ebd. N\u00f3i c\u00e1ch kh\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u00e2y l\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa giao di\u1ec7n v\u00e0 l\u1edbp tri\u1ec3n khai.<\/p>\n<p>V\u00ed d\u1ee5, giao di\u1ec7n Owner c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 thu th\u1eadp t\u00e0i s\u1ea3n v\u00e0 x\u1eed l\u00fd t\u00e0i s\u1ea3n. C\u00e1c l\u1edbp Person v\u00e0 Corporation c\u1ea7n tri\u1ec3n khai c\u00e1c ph\u01b0\u01a1ng th\u1ee9c n\u00e0y, c\u00f3 th\u1ec3 theo nh\u1eefng c\u00e1ch r\u1ea5t kh\u00e1c nhau.<\/p>\n<p><img alt=\"Realization\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/16-realization.png\"\/><\/p>\n<hr\/>\n<h2>V\u00ed d\u1ee5 v\u1ec1 s\u01a1 \u0111\u1ed3 l\u1edbp<\/h2>\n<h3>V\u00ed d\u1ee5 v\u1ec1 h\u1ec7 th\u1ed1ng \u0111\u1eb7t h\u00e0ng<\/h3>\n<p><img alt=\"Class Diagram Example: Order System\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/17-class-diagram-example-order-system.png\"\/><\/p>\n<h3>V\u00ed d\u1ee5 v\u1ec1 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3 h\u1ecda<\/h3>\n<p>S\u01a1 \u0111\u1ed3 l\u1edbp c\u0169ng c\u00f3 th\u1ec3 c\u00f3 ghi ch\u00fa \u0111\u00ednh k\u00e8m v\u00e0o c\u00e1c l\u1edbp ho\u1eb7c m\u1ed1i quan h\u1ec7.<\/p>\n<p><img alt=\"Class Diagram Example: GUI\" decoding=\"async\" src=\"https:\/\/cdn-images.visual-paradigm.com\/guide\/uml\/uml-class-diagram-tutorial\/18-uml-class-diagram-example-gui.png\"\/><\/p>\n<hr\/>\n<h2>T\u00ecm ki\u1ebfm m\u1ed9t c\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 l\u1edbp mi\u1ec5n ph\u00ed?<\/h2>\n<p><strong>Visual Paradigm Online (phi\u00ean b\u1ea3n mi\u1ec5n ph\u00ed VP Online)<\/strong>l\u00e0 ph\u1ea7n m\u1ec1m v\u1ebd tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed h\u1ed7 tr\u1ee3 s\u01a1 \u0111\u1ed3 l\u1edbp, c\u00e1c s\u01a1 \u0111\u1ed3 UML kh\u00e1c, c\u00f4ng c\u1ee5 ERD v\u00e0 c\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 t\u1ed5 ch\u1ee9c. N\u00f3 c\u00f3 tr\u00ecnh so\u1ea1n th\u1ea3o \u0111\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd, cho ph\u00e9p b\u1ea1n t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng. Tr\u00ecnh so\u1ea1n th\u1ea3o UML mi\u1ec5n ph\u00ed kh\u00f4ng c\u00f3 qu\u1ea3ng c\u00e1o, kh\u00f4ng gi\u1edbi h\u1ea1n th\u1eddi gian truy c\u1eadp v\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng s\u01a1 \u0111\u1ed3, s\u1ed1 l\u01b0\u1ee3ng h\u00ecnh d\u1ea1ng, v.v. B\u1ea1n s\u1edf h\u1eefu c\u00e1c s\u01a1 \u0111\u1ed3 b\u1ea1n t\u1ea1o ra cho m\u1ee5c \u0111\u00edch c\u00e1 nh\u00e2n v\u00e0 phi th\u01b0\u01a1ng m\u1ea1i.<\/p>\n<p><img alt=\"Online Class Diagram Tool\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/images\/features\/uml-tool\/02-class-diagram-example-car.png\"\/><\/p>\n<p><a href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=ClassDiagram&amp;width=11&amp;height=8.5&amp;unit=inch\">T\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp<\/a><\/p>\n<hr\/>\n<h2>V\u1ebd s\u01a1 \u0111\u1ed3 l\u1edbp nhanh ch\u00f3ng<\/h2>\n<h3>Ph\u1ea7n m\u1ec1m UML mi\u1ec5n ph\u00ed<\/h3>\n<p>V\u1ebd s\u01a1 \u0111\u1ed3 l\u1edbp cho m\u1ee5c \u0111\u00edch c\u00e1 nh\u00e2n mi\u1ec5n ph\u00ed:<\/p>\n<ul>\n<li>\n<p>Kh\u00f4ng gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng s\u01a1 \u0111\u1ed3 v\u00e0 h\u00ecnh d\u1ea1ng<\/p>\n<\/li>\n<li>\n<p>Kh\u00f4ng gi\u1edbi h\u1ea1n th\u1eddi gian truy c\u1eadp<\/p>\n<\/li>\n<li>\n<p>Kh\u00f4ng qu\u1ea3ng c\u00e1o<\/p>\n<\/li>\n<\/ul>\n<p>V\u1ebd bao nhi\u00eau s\u01a1 \u0111\u1ed3 b\u1ea1n mu\u1ed1n. Xu\u1ea5t b\u1ea3n v\u1ebd c\u1ee7a b\u1ea1n sang PNG\/JPG\/GIF\/SVG\/PDF.<\/p>\n<h3>\u0110\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd<\/h3>\n<p>V\u1ebd s\u01a1 \u0111\u1ed3 UML c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n v\u00e0 th\u00fa v\u1ecb. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng c\u1ee7a tr\u00ecnh so\u1ea1n th\u1ea3o s\u01a1 \u0111\u1ed3 l\u1edbp c\u1ee7a ch\u00fang t\u00f4i:<\/p>\n<ul>\n<li>\n<p>K\u00e9o \u0111\u1ec3 t\u1ea1o h\u00ecnh d\u1ea1ng<\/p>\n<\/li>\n<li>\n<p>C\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c g\u1eafn ch\u1eb7t (kh\u00f4ng t\u00e1ch r\u1eddi)<\/p>\n<\/li>\n<li>\n<p>Ch\u1ec9nh s\u1eeda tr\u1ef1c ti\u1ebfp thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c c\u1ee7a l\u1edbp<\/p>\n<\/li>\n<li>\n<p>V\u1ebd c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ee7a ri\u00eang b\u1ea1n v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng ri\u00eang c\u1ee7a b\u1ea1n<\/p>\n<\/li>\n<li>\n<p>H\u00e0ng tr\u0103m v\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 v\u00e0 m\u1eabu<\/p>\n<\/li>\n<\/ul>\n<h3>B\u1ea3n v\u1ebd \u1ea5n t\u01b0\u1ee3ng<\/h3>\n<p>\u0110\u1eb7t h\u00ecnh d\u1ea1ng ch\u00ednh x\u00e1c b\u1eb1ng h\u01b0\u1edbng d\u1eabn c\u0103n ch\u1ec9nh. \u0110\u1ecbnh d\u1ea1ng s\u01a1 \u0111\u1ed3 L\u1edbp c\u1ee7a b\u1ea1n b\u1eb1ng lo\u1ea1t c\u00f4ng c\u1ee5 \u0111\u1ecbnh d\u1ea1ng: \u0111\u1ecbnh d\u1ea1ng h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u01b0\u1eddng n\u00e9t, ki\u1ec3u ph\u00f4ng ch\u1eef, h\u00ecnh d\u1ea1ng c\u00f3 th\u1ec3 xoay, c\u0103n ch\u1ec9nh v\u00e0 ph\u00e2n b\u1ed1 h\u00ecnh d\u1ea1ng, nh\u00fang h\u00ecnh \u1ea3nh v\u00e0 URL, hi\u1ec7u \u1ee9ng b\u00f3ng \u0111\u1ed5, v.v.<\/p>\n<hr\/>\n<h2>T\u00ednh n\u0103ng ch\u00ednh v\u00e0 l\u1ee3i \u00edch<\/h2>\n<p><img alt=\"Key features and benefits\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/images\/solutions\/free-online-drawing-software\/benefits.png\"\/><\/p>\n<ul>\n<li>\n<p><strong>Th\u1eddi gian truy c\u1eadp kh\u00f4ng gi\u1edbi h\u1ea1n<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>S\u1ed1 l\u01b0\u1ee3ng s\u01a1 \u0111\u1ed3 kh\u00f4ng gi\u1edbi h\u1ea1n<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>S\u1ed1 l\u01b0\u1ee3ng h\u00ecnh d\u1ea1ng kh\u00f4ng gi\u1edbi h\u1ea1n<\/strong><\/p>\n<\/li>\n<li>\n<p>C\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 UML, c\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 ERD, c\u00f4ng c\u1ee5 t\u1ea1o s\u01a1 \u0111\u1ed3 t\u1ed5 ch\u1ee9c, c\u00f4ng c\u1ee5 thi\u1ebft k\u1ebf b\u1ea3n \u0111\u1ed3 s\u00e0n, ITIL, s\u01a1 \u0111\u1ed3 kh\u00e1i ni\u1ec7m kinh doanh<\/p>\n<\/li>\n<li>\n<p>C\u00f3 th\u1ec3 n\u00e2ng c\u1ea5p l\u00ean c\u00e1c phi\u00ean b\u1ea3n tr\u1ea3 ph\u00ed cho<a href=\"https:\/\/online.visual-paradigm.com\/pricing\/\">nhi\u1ec1u lo\u1ea1i s\u01a1 \u0111\u1ed3 h\u01a1n<\/a>v\u00e0 t\u00ednh n\u0103ng<\/p>\n<\/li>\n<li>\n<p>H\u1ed7 tr\u1ee3 \u0111a n\u1ec1n t\u1ea3ng: Windows, Mac, Linux. T\u01b0\u01a1ng th\u00edch v\u1edbi t\u1ea5t c\u1ea3 tr\u00ecnh duy\u1ec7t web<\/p>\n<\/li>\n<li>\n<p>D\u1ec5 s\u1eed d\u1ee5ng: T\u1ea1o v\u00e0 k\u1ebft n\u1ed1i h\u00ecnh d\u1ea1ng b\u1eb1ng thao t\u00e1c k\u00e9o th\u1ea3. C\u00e1c k\u1ebft n\u1ed1i s\u1ebd t\u1ef1 \u0111\u1ed9ng b\u00e1m v\u00e0o h\u00ecnh d\u1ea1ng v\u00e0 kh\u00f4ng bao gi\u1edd t\u00e1ch r\u1eddi<\/p>\n<\/li>\n<li>\n<p>\u00c1p d\u1ee5ng c\u00e1c t\u00f9y ch\u1ecdn \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau (h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u01b0\u1eddng n\u00e9t, s\u01a1n \u0111\u1eadm v\u00e0 s\u01a1n gradient), h\u01a1n 40 lo\u1ea1i k\u1ebft n\u1ed1i, ch\u00fa th\u00edch RTF, t\u00f9y ch\u1ecdn ph\u00f4ng ch\u1eef, hi\u1ec7u \u1ee9ng b\u00f3ng \u0111\u1ed5, v.v.<\/p>\n<\/li>\n<li>\n<p>Nh\u1eadp b\u1ea3n v\u1ebd v\u00e0 m\u1eabu Visio<\/p>\n<\/li>\n<li>\n<p>V\u1ebd s\u01a1 \u0111\u1ed3 c\u1ee7a ri\u00eang b\u1ea1n b\u1eb1ng c\u00e1c h\u00ecnh d\u1ea1ng ri\u00eang<\/p>\n<\/li>\n<li>\n<p>D\u1ec5 d\u00e0ng nh\u00fang v\u0103n b\u1ea3n, h\u00ecnh \u1ea3nh b\u00ean ngo\u00e0i v\u00e0 li\u00ean k\u1ebft web v\u00e0o s\u01a1 \u0111\u1ed3<\/p>\n<\/li>\n<li>\n<p>B\u1eaft \u0111\u1ea7u nhanh ch\u00f3ng v\u1edbi h\u00e0ng tr\u0103m v\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 v\u00e0 m\u1eabu s\u01a1 \u0111\u1ed3<\/p>\n<\/li>\n<li>\n<p>In, xu\u1ea5t v\u00e0 chia s\u1ebb c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n d\u01b0\u1edbi nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau (PNG, JPG, SVG, GIF, PDF)<\/p>\n<\/li>\n<li>\n<p>T\u00edch h\u1ee3p Google Drive<\/p>\n<\/li>\n<\/ul>\n<hr\/>\n<h2>Nh\u01b0ng \u0111\u1eebng ch\u1ec9 tin v\u00e0o l\u1eddi ch\u00fang t\u00f4i n\u00f3i<\/h2>\n<p>H\u00e3y t\u1ef1 th\u1eed nghi\u1ec7m. Ch\u1ec9 c\u1ea7n duy\u1ec7t qua c\u00e1c v\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 L\u1edbp b\u00ean d\u01b0\u1edbi v\u00e0 nh\u1ea5p v\u00e0o M\u1edf S\u01a1 \u0111\u1ed3 \u0111\u1ec3 m\u1edf v\u00e0 ch\u1ec9nh s\u1eeda. B\u1ea1n s\u1ebd t\u1ef1 m\u00ecnh th\u1ea5y r\u1eb1ng n\u00f3 \u0111\u00fang nh\u01b0 nh\u1eefng g\u00ec ch\u00fang t\u00f4i n\u00f3i, ho\u1eb7c th\u1eadm ch\u00ed c\u00f2n h\u01a1n th\u1ebf n\u1eefa.<\/p>\n<ul>\n<li>\n<p>H\u1ec7 th\u1ed1ng \u0111\u01a1n h\u00e0ng b\u00e1n h\u00e0ng<\/p>\n<\/li>\n<li>\n<p>Xe h\u01a1i<\/p>\n<\/li>\n<li>\n<p>\u0110i\u1ec7n tho\u1ea1i<\/p>\n<\/li>\n<li>\n<p>M\u1ea1ng LAN d\u1ef1a tr\u00ean sao<\/p>\n<\/li>\n<\/ul>\n<p><img alt=\"Class Diagram Example: Star-Based LAN\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/images\/solutions\/class-daigram\/star-based-lan.png\"\/><\/p>\n<h1><a href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:type=ClassDiagram&amp;gallery=\/repository\/f8f3638c-e6a5-4e1f-98f7-2b3044ec2721.xml&amp;name=A%20Star-Based%20LAN\">M\u1edf s\u01a1 \u0111\u1ed3<\/a><\/h1>\n<p><img alt=\"Class Diagram Example: Sales Order System\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/images\/solutions\/class-daigram\/sales-order-system.png\"\/><\/p>\n<hr\/>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>S\u01a1 \u0111\u1ed3 L\u1edbp UML v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd v\u00e0 b\u1ec1n b\u1ec9 nh\u1ea5t trong ng\u00e0nh k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m \u0111\u1ec3 tr\u1ef1c quan h\u00f3a, x\u00e1c \u0111\u1ecbnh, x\u00e2y d\u1ef1ng v\u00e0 t\u00e0i li\u1ec7u h\u00f3a c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. Nh\u01b0 h\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u00e3 ch\u1ee9ng minh, vi\u1ec7c th\u00e0nh th\u1ea1o s\u01a1 \u0111\u1ed3 L\u1edbp trang b\u1ecb cho c\u00e1c \u0111\u1ed9i ng\u0169 m\u1ed9t ng\u00f4n ng\u1eef chung \u0111\u1ec3 th\u1ea3o lu\u1eadn ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng, ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c khi\u1ebfm khuy\u1ebft thi\u1ebft k\u1ebf v\u00e0 duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9 xuy\u00ean su\u1ed1t c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n.<\/p>\n<p>S\u1ef1 h\u1ed3i sinh c\u1ee7a UML trong m\u00f4i tr\u01b0\u1eddng Agile\u2014\u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a h\u1ed7 tr\u1ee3 AI\u2014\u0111\u1ea1i di\u1ec7n cho m\u1ed9t b\u01b0\u1edbc ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong c\u00e1ch ch\u00fang ta ti\u1ebfp c\u1eadn thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m. Kh\u00f4ng c\u00f2n b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi chi ph\u00ed c\u00f4ng vi\u1ec7c v\u1ebd s\u01a1 \u0111\u1ed3 th\u1ee7 c\u00f4ng, c\u00e1c \u0111\u1ed9i ng\u0169 hi\u1ec7n c\u00f3 th\u1ec3 t\u1ea1o ra, l\u1eb7p l\u1ea1i v\u00e0 duy tr\u00ec s\u01a1 \u0111\u1ed3 L\u1edbp nh\u01b0 nh\u1eefng t\u00e0i li\u1ec7u s\u1ed1ng \u0111\u1ed9ng, ph\u00e1t tri\u1ec3n song song v\u1edbi m\u00e3 ngu\u1ed3n. S\u1ef1 k\u1ebft h\u1ee3p n\u00e0y gi\u1eefa m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh Agile cho ph\u00e9p:<\/p>\n<p>\ud83d\udd39\u00a0<strong>Ti\u1ebfp nh\u1eadn nhanh h\u01a1n<\/strong>\u00a0th\u00f4ng qua c\u00e1c bi\u1ec3u di\u1ec5n h\u1ec7 th\u1ed1ng tr\u1ef1c quan<br \/>\n\ud83d\udd39\u00a0<strong>Giao ti\u1ebfp \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n<\/strong>\u00a0gi\u1eefa c\u00e1c b\u00ean li\u00ean quan k\u1ef9 thu\u1eadt v\u00e0 phi k\u1ef9 thu\u1eadt<br \/>\n\ud83d\udd39\u00a0<strong>X\u00e1c minh thi\u1ebft k\u1ebf ch\u1ee7 \u0111\u1ed9ng<\/strong>\u00a0tr\u01b0\u1edbc khi tri\u1ec3n khai b\u1eaft \u0111\u1ea7u<br \/>\n\ud83d\udd39\u00a0<strong>T\u00e0i li\u1ec7u h\u00f3a t\u1ef1 \u0111\u1ed9ng<\/strong>\u00a0lu\u00f4n \u0111\u1ed3ng b\u1ed9 v\u1edbi m\u00e3 ngu\u1ed3n<br \/>\n\ud83d\udd39\u00a0<strong>T\u00e1i c\u1ea5u tr\u00fac th\u00f4ng minh h\u01a1n<\/strong>\u00a0\u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn b\u1edfi nh\u1eefng hi\u1ec3u bi\u1ebft v\u1ec1 c\u1ea5u tr\u00fac<\/p>\n<p>D\u00f9 b\u1ea1n \u0111ang m\u00f4 h\u00ecnh h\u00f3a m\u1ed9t kh\u00e1i ni\u1ec7m mi\u1ec1n \u0111\u01a1n gi\u1ea3n hay ki\u1ebfn tr\u00fac m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n ph\u1ee9c t\u1ea1p, s\u01a1 \u0111\u1ed3 l\u1edbp cung c\u1ea5p s\u1ef1 r\u00f5 r\u00e0ng v\u1ec1 c\u1ea5u tr\u00fac c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng ph\u1ea7n m\u1ec1m d\u1ec5 b\u1ea3o tr\u00ec, m\u1edf r\u1ed9ng. B\u1eb1ng c\u00e1ch \u0111\u00f3n nh\u1eadn c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc \u0111\u01b0\u1ee3c n\u00eau trong h\u01b0\u1edbng d\u1eabn n\u00e0y, \u0111\u1ed9i ng\u0169 c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 bi\u1ebfn s\u01a1 \u0111\u1ed3 l\u1edbp t\u1eeb t\u00e0i li\u1ec7u t\u0129nh th\u00e0nh \u0111\u1ed9ng c\u01a1 t\u00edch c\u1ef1c th\u00fac \u0111\u1ea9y thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m t\u1ed1t h\u01a1n.<\/p>\n<p>B\u1eaft \u0111\u1ea7u nh\u1ecf: v\u1ebd ph\u00e1c th\u1ea3o m\u1ed9t m\u00f4 h\u00ecnh kh\u00e1i ni\u1ec7m cho t\u00ednh n\u0103ng ti\u1ebfp theo c\u1ee7a b\u1ea1n. L\u1eb7p l\u1ea1i c\u00f9ng \u0111\u1ed9i ng\u0169. \u0110\u1ec3 AI h\u1ed7 tr\u1ee3 c\u1ea5u tr\u00fac m\u1eabu. Tinh ch\u1ec9nh khi y\u00eau c\u1ea7u thay \u0111\u1ed5i. K\u1ebft qu\u1ea3? M\u1ed9t t\u1ea7m nh\u00ecn r\u00f5 r\u00e0ng h\u01a1n, ki\u1ebfn tr\u00fac v\u1eefng ch\u1eafc h\u01a1n v\u00e0 ph\u1ea7n m\u1ec1m v\u01b0\u1ee3t qua th\u1eed th\u00e1ch c\u1ee7a th\u1eddi gian.<\/p>\n<hr\/>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Unified_Modeling_Language\"><strong>Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t<\/strong><\/a>: T\u1ed5ng quan to\u00e0n di\u1ec7n c\u1ee7a Wikipedia v\u1ec1 UML, ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a chu\u1ea9n h\u00f3a \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, tr\u1ef1c quan h\u00f3a, x\u00e2y d\u1ef1ng v\u00e0 t\u00e0i li\u1ec7u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m.<\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Systems_development_life_cycle\"><strong>V\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng<\/strong><\/a>: Gi\u1ea3i th\u00edch c\u1ee7a Wikipedia v\u1ec1 khung SDLC, cung c\u1ea5p b\u1ed1i c\u1ea3nh v\u1ec1 vi\u1ec7c s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u1edf \u0111\u00e2u trong c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n kh\u00e1c nhau.<\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Programming_language\"><strong>Ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh<\/strong><\/a>: T\u00e0i li\u1ec7u tham kh\u1ea3o c\u1ee7a Wikipedia v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh, c\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c hi\u1ec3u s\u01a1 \u0111\u1ed3 l\u1edbp t\u1eeb g\u00f3c nh\u00ecn tri\u1ec3n khai.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/download\/community.jsp\"><strong>Trang t\u1ea3i mi\u1ec5n ph\u00ed phi\u00ean b\u1ea3n c\u1ed9ng \u0111\u1ed3ng Visual Paradigm<\/strong><\/a>: Trang t\u1ea3i mi\u1ec5n ph\u00ed phi\u00ean b\u1ea3n c\u1ed9ng \u0111\u1ed3ng Visual Paradigm, c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a UML \u0111\u1ea1t gi\u1ea3i th\u01b0\u1edfng, h\u1ed7 tr\u1ee3 t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3.<\/li>\n<li><a href=\"https:\/\/chat.visual-paradigm.com\/\"><strong>Tr\u1ee3 l\u00fd chat AI c\u1ee7a Visual Paradigm<\/strong><\/a>: Giao di\u1ec7n chat \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 AI \u0111\u1ec3 t\u1ea1o v\u00e0 tinh ch\u1ec9nh s\u01a1 \u0111\u1ed3 l\u1edbp UML th\u00f4ng qua m\u00f4 t\u1ea3 b\u1eb1ng ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean.<\/li>\n<li><a href=\"https:\/\/ai.visual-paradigm.com\/tool\/opendocs\"><strong>Visual Paradigm OpenDocs<\/strong><\/a>: C\u00f4ng c\u1ee5 \u0111\u1ec3 nh\u00fang tr\u1ef1c ti\u1ebfp c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi AI v\u00e0o c\u00e1c trang t\u00e0i li\u1ec7u ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><a href=\"https:\/\/ai.visual-paradigm.com\/tool\/ai-assisted-uml-class-diagram-generator\/\"><strong>B\u1ed9 h\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 l\u1edbp AI<\/strong><\/a>: Tr\u1ee3 l\u00fd AI t\u1eebng b\u01b0\u1edbc gi\u00fap t\u1ea1o c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c trong s\u01a1 \u0111\u1ed3 UML.<\/li>\n<li><a href=\"https:\/\/ai.visual-paradigm.com\/tool\/use-case-modeling-studio\/\"><strong>Studio Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong><\/a>: C\u00f4ng c\u1ee5 AI t\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t c\u00e1c l\u1edbp mi\u1ec1n t\u1eeb m\u00f4 t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng h\u00e0nh vi.<\/li>\n<li><a href=\"https:\/\/agilien.visual-paradigm.com\/\"><strong>Agilien<\/strong><\/a>: N\u1ec1n t\u1ea3ng k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp c\u00e1c c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng Agile v\u00e0 c\u00e1c m\u1ee5c ti\u00eau l\u1edbn v\u1edbi c\u00e1c m\u00f4 h\u00ecnh UML c\u1ea5u tr\u00fac.<\/li>\n<li><a href=\"https:\/\/ai.visual-paradigm.com\/tool\/dbmodeler-ai\/\"><strong>DB Modeler AI<\/strong><\/a>: C\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi AI \u0111\u1ec3 t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp mi\u1ec1n kh\u00e1i ni\u1ec7m t\u1ed1i \u01b0u h\u00f3a cho thi\u1ebft k\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n<li><a href=\"https:\/\/ai.visual-paradigm.com\/tool\/ai-mvc-system-architecture-generator\/\"><strong>B\u1ed9 sinh ki\u1ebfn tr\u00fac AI MVC<\/strong><\/a>: C\u00f4ng c\u1ee5 AI chuy\u00ean d\u1ee5ng \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp Controller tu\u00e2n theo c\u00e1c m\u1eabu ki\u1ebfn tr\u00fac MVC.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/ai-class-diagram-generator-by-visual-paradigm\/\"><strong>H\u01b0\u1edbng d\u1eabn t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp AI<\/strong><\/a>: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 vi\u1ec7c t\u1eadn d\u1ee5ng AI \u0111\u1ec3 t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp trong Visual Paradigm.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/best-ai-diagram-generator-visual-paradigm-ecosystem\/\"><strong>H\u01b0\u1edbng d\u1eabn h\u1ec7 sinh th\u00e1i AI c\u1ee7a Visual Paradigm<\/strong><\/a>: T\u1ed5ng quan v\u1ec1 b\u1ed9 c\u00f4ng c\u1ee5 v\u1ebd s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi AI \u0111\u1ea7y \u0111\u1ee7 c\u00f3 s\u1eb5n tr\u00ean n\u1ec1n t\u1ea3ng Visual Paradigm.<\/li>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=ClassDiagram&amp;width=11&amp;height=8.5&amp;unit=inch\"><strong>Tr\u00ecnh ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 l\u1edbp tr\u1ef1c tuy\u1ebfn c\u1ee7a Visual Paradigm<\/strong><\/a>: Tr\u00ecnh ch\u1ec9nh s\u1eeda tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed \u0111\u1ec3 t\u1ea1o v\u00e0 ch\u1ec9nh s\u1eeda s\u01a1 \u0111\u1ed3 l\u1edbp UML m\u00e0 kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n s\u1eed d\u1ee5ng.<\/li>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/pricing\/\"><strong>B\u1ea3ng gi\u00e1 tr\u1ef1c tuy\u1ebfn c\u1ee7a Visual Paradigm<\/strong><\/a>: Th\u00f4ng tin v\u1ec1 n\u00e2ng c\u1ea5p l\u00ean c\u00e1c phi\u00ean b\u1ea3n tr\u1ea3 ph\u00ed \u0111\u1ec3 c\u00f3 th\u00eam lo\u1ea1i s\u01a1 \u0111\u1ed3 v\u00e0 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao.<\/li>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:type=ClassDiagram&amp;gallery=\/repository\/f8f3638c-e6a5-4e1f-98f7-2b3044ec2721.xml&amp;name=A%20Star-Based%20LAN\"><strong>V\u00ed d\u1ee5 s\u01a1 \u0111\u1ed3 l\u1edbp m\u1ea1ng LAN d\u1ef1a tr\u00ean h\u00ecnh sao<\/strong><\/a>: V\u00ed d\u1ee5 t\u01b0\u01a1ng t\u00e1c, c\u00f3 th\u1ec3 ch\u1ec9nh s\u1eeda c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp m\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac m\u1ea1ng c\u1ee5c b\u1ed9 d\u1ef1a tr\u00ean h\u00ecnh sao.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u Trong b\u1ed1i c\u1ea3nh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ng\u00e0y c\u00e0ng nhanh ch\u00f3ng, giao ti\u1ebfp r\u00f5 r\u00e0ng v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n bao&hellip;<\/p>\n","protected":false},"author":2,"featured_media":1963,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/img_69d887fef1329.png","fifu_image_alt":"","footnotes":""},"categories":[57],"tags":[],"class_list":["post-1962","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Th\u00e0nh th\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp UML: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac t\u0129nh trong ph\u00e1t tri\u1ec3n Agile - Go Diagram Vietnamese - Proven AI Workflows &amp; Modern Tech 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