{"id":109,"date":"2026-04-03T08:18:23","date_gmt":"2026-04-03T08:18:23","guid":{"rendered":"https:\/\/www.ai-diagrams.com\/vn\/building-first-uml-composite-structure-diagram\/"},"modified":"2026-04-03T08:18:23","modified_gmt":"2026-04-03T08:18:23","slug":"building-first-uml-composite-structure-diagram","status":"publish","type":"post","link":"https:\/\/www.ai-diagrams.com\/vn\/building-first-uml-composite-structure-diagram\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n: X\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh UML \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n"},"content":{"rendered":"<p>M\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho b\u1ea5t k\u1ef3 ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m n\u00e0o v\u1eefng ch\u1eafc. M\u1eb7c d\u00f9 nhi\u1ec1u ng\u01b0\u1eddi quen thu\u1ed9c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp ti\u00eau chu\u1ea9n, nh\u01b0ng v\u1eabn t\u1ed3n t\u1ea1i m\u1ed9t c\u00f4ng c\u1ee5 chi ti\u1ebft h\u01a1n \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p. \u0110\u00f3 ch\u00ednh l\u00e0 S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh UML. N\u00f3 cung c\u1ea5p c\u00e1i nh\u00ecn s\u00e2u v\u00e0o c\u1ea5u t\u1ea1o c\u1ee7a m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i, ti\u1ebft l\u1ed9 c\u00e1ch c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau \u0111\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng. \ud83e\udde9<\/p>\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c lo\u1ea1i s\u01a1 \u0111\u1ed3 n\u00e0y gi\u00fap c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi, giao di\u1ec7n v\u00e0 k\u1ebft n\u1ed1i b\u00ean trong m\u1ed9t th\u1ef1c th\u1ec3 duy nh\u1ea5t. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd d\u1eabn b\u1ea1n qua c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu, c\u00e1c b\u01b0\u1edbc x\u00e2y d\u1ef1ng v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 th\u01b0\u01a1ng m\u1ea1i c\u1ee5 th\u1ec3. Ch\u00fang ta s\u1ebd t\u1eadp trung v\u00e0o c\u00e1c nguy\u00ean t\u1eafc n\u1ec1n t\u1ea3ng \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Cartoon infographic illustrating how to build a UML Composite Structure Diagram, showing classifier boxes with internal parts, ports, connectors, step-by-step construction guide, comparison with class\/component diagrams, and best practices for software architecture modeling\" decoding=\"async\" src=\"https:\/\/www.ai-diagrams.com\/wp-content\/uploads\/2026\/04\/uml-composite-structure-diagram-guide-cartoon-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udcca Hi\u1ec3u r\u00f5 m\u1ee5c \u0111\u00edch<\/h2>\n<p>S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML). Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 minh h\u1ecda c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, n\u00f3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi:<em>B\u00ean trong l\u1edbp ho\u1eb7c th\u00e0nh ph\u1ea7n n\u00e0y l\u00e0 g\u00ec, v\u00e0 nh\u1eefng m\u1ea3nh b\u00ean trong \u0111\u00f3 k\u1ebft n\u1ed1i v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o?<\/em> \u2699\ufe0f<\/p>\n<p>Kh\u00e1c v\u1edbi S\u01a1 \u0111\u1ed3 L\u1edbp, t\u1eadp trung v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c l\u1edbp kh\u00e1c nhau, S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh ph\u00f3ng to chi ti\u1ebft. N\u00f3 th\u1ec3 hi\u1ec7n:<\/p>\n<ul>\n<li><strong>C\u00e1c b\u1ed9 ph\u1eadn:<\/strong> C\u00e1c y\u1ebfu t\u1ed1 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c ch\u1ee9a b\u00ean trong b\u1ed9 ph\u00e2n lo\u1ea1i.<\/li>\n<li><strong>C\u00e1c c\u1ed5ng:<\/strong>C\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c n\u01a1i b\u1ed9 ph\u00e2n lo\u1ea1i giao ti\u1ebfp v\u1edbi th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i.<\/li>\n<li><strong>C\u00e1c b\u1ed9 n\u1ed1i:<\/strong>C\u00e1c h\u00e0nh tr\u00ecnh k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn v\u1edbi c\u00e1c c\u1ed5ng ho\u1eb7c v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c.<\/li>\n<\/ul>\n<p>M\u1ee9c \u0111\u1ed9 chi ti\u1ebft n\u00e0y r\u1ea5t quan tr\u1ecdng khi x\u1eed l\u00fd c\u00e1c thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ea5p cao, n\u01a1i m\u00e0 d\u00e2y n\u1ed1i b\u00ean trong quan tr\u1ecdng ngang b\u1eb1ng v\u1edbi giao di\u1ec7n b\u00ean ngo\u00e0i. N\u00f3 t\u1ea1o ra s\u1ef1 k\u1ebft n\u1ed1i gi\u1eefa logic tr\u1eebu t\u01b0\u1ee3ng v\u00e0 chi ti\u1ebft tri\u1ec3n khai c\u1ee5 th\u1ec3.<\/p>\n<h2>\ud83e\udde9 C\u00e1c y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i v\u00e0 ng\u1eef ngh\u0129a<\/h2>\n<p>\u0110\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c, b\u1ea1n ph\u1ea3i hi\u1ec3u r\u00f5 t\u1eeb v\u1ef1ng c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c c\u1ee7a k\u00fd hi\u1ec7u. M\u1ed7i y\u1ebfu t\u1ed1 \u0111\u1ec1u c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch ri\u00eang bi\u1ec7t trong \u0111\u1ecbnh ngh\u0129a c\u1ea5u tr\u00fac.<\/p>\n<h3>1. B\u1ed9 ph\u00e2n lo\u1ea1i v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn<\/h3>\n<p>Khung ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 \u0111\u1ea1i di\u1ec7n cho b\u1ed9 ph\u00e2n lo\u1ea1i \u0111ang \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a. B\u00ean trong khung n\u00e0y, b\u1ea1n \u0111\u1ecbnh ngh\u0129a<strong>C\u00e1c b\u1ed9 ph\u1eadn<\/strong>. M\u1ed9t b\u1ed9 ph\u1eadn l\u00e0 m\u1ed9t \u0111\u1eb7c tr\u01b0ng c\u1ea5u tr\u00fac c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i. N\u00f3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 ho\u1eb7c c\u1ea5u tr\u00fac con n\u1eb1m b\u00ean trong to\u00e0n b\u1ed9.<\/p>\n<ul>\n<li><strong>\u0110a d\u1ea1ng:<\/strong>C\u00e1c b\u1ed9 ph\u1eadn c\u00f3 t\u00ednh \u0111a d\u1ea1ng, cho bi\u1ebft c\u00f3 bao nhi\u00eau th\u1ec3 hi\u1ec7n c\u1ee7a b\u1ed9 ph\u1eadn t\u1ed3n t\u1ea1i (v\u00ed d\u1ee5: m\u1ed9t, nhi\u1ec1u).<\/li>\n<li><strong>T\u00ednh kh\u1ea3 ki\u1ebfn:<\/strong>C\u00e1c b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 l\u00e0 ri\u00eang t\u01b0, \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 ho\u1eb7c c\u00f4ng khai, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp.<\/li>\n<li><strong>T\u00ean vai tr\u00f2:<\/strong>M\u1ed9t b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 \u0111\u1ea3m nh\u1eadn m\u1ed9t vai tr\u00f2 c\u1ee5 th\u1ec3 trong b\u1ed1i c\u1ea3nh c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i.<\/li>\n<\/ul>\n<h3>2. C\u00e1c c\u1ed5ng<\/h3>\n<p>C\u00e1c c\u1ed5ng l\u00e0 c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c. Ch\u00fang l\u00e0 c\u00e1c giao di\u1ec7n th\u00f4ng qua \u0111\u00f3 b\u1ed9 ph\u00e2n lo\u1ea1i t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh ho\u1eb7c giao ti\u1ebfp v\u1edbi c\u00e1c b\u1ed9 ph\u00e2n lo\u1ea1i kh\u00e1c. V\u1ec1 c\u01a1 b\u1ea3n, c\u00e1c c\u1ed5ng l\u00e0 c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean.<\/p>\n<ul>\n<li><strong>C\u00e1c giao di\u1ec7n cung c\u1ea5p:<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng k\u1eb9o m\u00fat (m\u1ed9t h\u00ecnh tr\u00f2n tr\u00ean m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng). \u0110i\u1ec1u n\u00e0y cho th\u1ea5y ch\u1ee9c n\u0103ng m\u00e0 b\u1ed9 ph\u1eadn cung c\u1ea5p cho b\u00ean ngo\u00e0i.<\/li>\n<li><strong>Giao di\u1ec7n c\u1ea7n thi\u1ebft:<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng n\u1eeda h\u00ecnh tr\u00f2n ho\u1eb7c h\u00ecnh \u1ed5 c\u1eafm. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y ch\u1ee9c n\u0103ng m\u00e0 b\u1ed9 ph\u1eadn c\u1ea7n t\u1eeb b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n<h3>3. B\u1ed9 n\u1ed1i<\/h3>\n<p>C\u00e1c b\u1ed9 n\u1ed1i thi\u1ebft l\u1eadp c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c y\u1ebfu t\u1ed1 c\u1ea5u tr\u00fac. C\u00f3 hai lo\u1ea1i b\u1ed9 n\u1ed1i ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed1i c\u1ea3nh n\u00e0y:<\/p>\n<ul>\n<li><strong>B\u1ed9 n\u1ed1i l\u1eafp r\u00e1p:<\/strong> Nh\u1eefng b\u1ed9 n\u1ed1i n\u00e0y k\u1ebft n\u1ed1i m\u1ed9t giao di\u1ec7n c\u1ea7n thi\u1ebft tr\u00ean m\u1ed9t b\u1ed9 ph\u1eadn v\u1edbi m\u1ed9t giao di\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p tr\u00ean m\u1ed9t b\u1ed9 ph\u1eadn kh\u00e1c. Ch\u00fang x\u00e1c \u0111\u1ecbnh s\u1ef1 li\u00ean k\u1ebft gi\u1eefa nhu c\u1ea7u c\u1ee7a m\u1ed9t th\u00e0nh ph\u1ea7n v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a th\u00e0nh ph\u1ea7n kh\u00e1c.<\/li>\n<li><strong>B\u1ed9 n\u1ed1i \u1ee7y quy\u1ec1n:<\/strong> Nh\u1eefng b\u1ed9 n\u1ed1i n\u00e0y k\u1ebft n\u1ed1i m\u1ed9t c\u1ed5ng tr\u00ean b\u1ed9 ph\u00e2n lo\u1ea1i v\u1edbi m\u1ed9t c\u1ed5ng tr\u00ean m\u1ed9t b\u1ed9 ph\u1eadn. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ed9 ph\u00e2n lo\u1ea1i \u1ee7y quy\u1ec1n c\u00e1c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn c\u1ed5ng b\u00ean ngo\u00e0i c\u1ee7a n\u00f3 cho b\u1ed9 ph\u1eadn b\u00ean trong.<\/li>\n<\/ul>\n<h3>4. H\u1ee3p t\u00e1c<\/h3>\n<p>M\u1ed9t H\u1ee3p t\u00e1c l\u00e0 m\u1ed9t ph\u1ea7n t\u1eed h\u00e0nh vi \u0111\u1ecbnh ngh\u0129a m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c vai tr\u00f2 v\u00e0 t\u01b0\u01a1ng t\u00e1c gi\u1eefa ch\u00fang. Trong s\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh, m\u1ed9t h\u1ee3p t\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 t\u1ea3 h\u00e0nh vi c\u1ee7a m\u1ed9t b\u1ed9 ph\u1eadn ho\u1eb7c ch\u00ednh c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh. N\u00f3 th\u00eam b\u1ed1i c\u1ea3nh v\u1ec1 c\u00e1ch c\u1ea5u tr\u00fac ho\u1ea1t \u0111\u1ed9ng khi c\u00e1c th\u00f4ng \u0111i\u1ec7p \u0111\u01b0\u1ee3c trao \u0111\u1ed5i.<\/p>\n<h2>\ud83d\udee0\ufe0f H\u01b0\u1edbng d\u1eabn x\u00e2y d\u1ef1ng t\u1eebng b\u01b0\u1edbc<\/h2>\n<p>Vi\u1ec7c x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 n\u00e0y \u0111\u00f2i h\u1ecfi m\u1ed9t tr\u00ecnh t\u1ef1 h\u1ee3p l\u00fd. B\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n v\u1ebd c\u00e1c h\u00ecnh h\u1ed9p; b\u1ea1n c\u1ea7n m\u00f4 h\u00ecnh h\u00f3a c\u00e1c m\u1ed1i quan h\u1ec7. H\u00e3y tu\u00e2n theo quy tr\u00ecnh kh\u00e1i ni\u1ec7m n\u00e0y \u0111\u1ec3 x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<h3>B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh b\u1ed9 ph\u00e2n lo\u1ea1i<\/h3>\n<p>B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh b\u1ed9 ph\u00e2n lo\u1ea1i c\u1ee5 th\u1ec3 m\u00e0 b\u1ea1n mu\u1ed1n m\u00f4 h\u00ecnh h\u00f3a. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t l\u1edbp ph\u1ea7n m\u1ec1m, m\u1ed9t m\u00f4-\u0111un ph\u1ea7n c\u1ee9ng ho\u1eb7c m\u1ed9t th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng. V\u1ebd khung h\u00ecnh ch\u1eef nh\u1eadt ch\u00ednh \u0111\u1ea1i di\u1ec7n cho b\u1ed9 ph\u00e2n lo\u1ea1i n\u00e0y. Ghi nh\u00e3n r\u00f5 r\u00e0ng. \ud83d\udcdd<\/p>\n<ul>\n<li>\u0110\u1ea3m b\u1ea3o t\u00ean l\u00e0 duy nh\u1ea5t trong b\u1ed1i c\u1ea3nh m\u00f4 h\u00ecnh hi\u1ec7n t\u1ea1i.<\/li>\n<li>X\u00e1c \u0111\u1ecbnh xem b\u1ed9 ph\u00e2n lo\u1ea1i n\u00e0y l\u00e0 tr\u1eebu t\u01b0\u1ee3ng hay c\u1ee5 th\u1ec3, v\u00ec \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c kh\u1edfi t\u1ea1o n\u00f3.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong<\/h3>\n<p>Ti\u1ebfp theo, x\u00e1c \u0111\u1ecbnh c\u1ea5u th\u00e0nh b\u00ean trong. Nh\u1eefng \u0111\u01a1n v\u1ecb nh\u1ecf h\u01a1n n\u00e0o t\u1ea1o n\u00ean b\u1ed9 ph\u00e2n lo\u1ea1i n\u00e0y? \u0110\u00e2y l\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a b\u1ea1n.<\/p>\n<ul>\n<li>Li\u1ec7t k\u00ea c\u00e1c ph\u1ee5 thu\u1ed9c ho\u1eb7c th\u00e0nh ph\u1ea7n con c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ed9 ph\u00e2n lo\u1ea1i ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li>V\u1ebd c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt b\u00ean trong khung b\u1ed9 ph\u00e2n lo\u1ea1i cho m\u1ed7i b\u1ed9 ph\u1eadn.<\/li>\n<li>Ghi nh\u00e3n m\u1ed7i b\u1ed9 ph\u1eadn v\u1edbi lo\u1ea1i c\u1ee7a n\u00f3 (v\u00ed d\u1ee5 nh\u01b0 <code>K\u1ebft n\u1ed1iC\u01a1 s\u1edfD\u1eefli\u1ec7u<\/code>, <code>B\u1ed9GhiNh\u1eadtK\u00fd<\/code>, <code>Qu\u1ea3nL\u00fdB\u1ed9\u0110\u1ec7m<\/code>).<\/li>\n<li>X\u00e1c \u0111\u1ecbnh t\u00ednh \u0111a d\u1ea1ng cho m\u1ed7i b\u1ed9 ph\u1eadn (v\u00ed d\u1ee5: 1, 0..1, *).<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 3: X\u00e1c \u0111\u1ecbnh c\u1ed5ng v\u00e0 giao di\u1ec7n<\/h3>\n<p>B\u00e2y gi\u1edd, h\u00e3y x\u00e1c \u0111\u1ecbnh c\u00e1ch th\u1ee9c b\u1ed9 ph\u00e2n lo\u1ea1i v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a n\u00f3 t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. \u0110\u00e2y ch\u00ednh l\u00e0 n\u01a1i logic c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c hi\u1ec7n th\u1ef1c h\u00f3a.<\/p>\n<ul>\n<li><strong>C\u1ed5ng b\u00ean ngo\u00e0i:<\/strong>V\u1ebd c\u00e1c c\u1ed5ng tr\u00ean bi\u00ean khung b\u1ed9 ph\u00e2n lo\u1ea1i. \u0110\u00e2y l\u00e0 c\u00e1c giao di\u1ec7n c\u00f4ng khai. G\u1eafn c\u00e1c k\u00fd hi\u1ec7u giao di\u1ec7n (d\u1ea1ng k\u1eb9p ho\u1eb7c \u1ed5 c\u1eafm) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec \u0111\u01b0\u1ee3c cung c\u1ea5p ho\u1eb7c y\u00eau c\u1ea7u.<\/li>\n<li><strong>C\u1ed5ng b\u00ean trong:<\/strong>V\u1ebd c\u00e1c c\u1ed5ng tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ea9n kh\u1ecfi th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i nh\u01b0ng r\u1ea5t quan tr\u1ecdng cho vi\u1ec7c k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9.<\/li>\n<li><strong>Lo\u1ea1i giao di\u1ec7n:<\/strong>R\u00f5 r\u00e0ng ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c giao di\u1ec7n d\u1ecbch v\u1ee5 (thao t\u00e1c) v\u00e0 c\u00e1c giao di\u1ec7n s\u1eed d\u1ee5ng (thu\u1ed9c t\u00ednh).<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 4: Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i<\/h3>\n<p>Sau khi x\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 c\u1ed5ng, b\u1ea1n ph\u1ea3i k\u1ebft n\u1ed1i ch\u00fang l\u1ea1i v\u1edbi nhau. \u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n<ul>\n<li><strong>K\u1ebft n\u1ed1i n\u1ed9i b\u1ed9:<\/strong>K\u1ebft n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn n\u1ed9i b\u1ed9 v\u1edbi nhau b\u1eb1ng c\u00e1c k\u1ebft n\u1ed1i l\u1eafp r\u00e1p. V\u00ed d\u1ee5, h\u00e3y th\u1ec3 hi\u1ec7n c\u00e1ch d\u1eef li\u1ec7u ch\u1ea3y t\u1eeb b\u1ed9 ghi nh\u1eadt k\u00fd \u0111\u1ebfn k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n<li><strong>Ph\u00e2n c\u00f4ng:<\/strong>K\u1ebft n\u1ed1i c\u00e1c c\u1ed5ng b\u00ean ngo\u00e0i c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i v\u1edbi c\u00e1c c\u1ed5ng b\u00ean trong c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn b\u1eb1ng c\u00e1c k\u1ebft n\u1ed1i ph\u00e2n c\u00f4ng. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c y\u00eau c\u1ea7u \u0111\u1ebfn giao di\u1ec7n ch\u00ednh s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ebfn b\u1ed9 x\u1eed l\u00fd n\u1ed9i b\u1ed9 \u0111\u00fang.<\/li>\n<li><strong>X\u00e1c minh:<\/strong>Ki\u1ec3m tra xem m\u1ed7i giao di\u1ec7n y\u00eau c\u1ea7u \u0111\u1ec1u c\u00f3 m\u1ed9t giao di\u1ec7n cung c\u1ea5p t\u01b0\u01a1ng \u1ee9ng \u1edf \u0111\u00e2u \u0111\u00f3 trong c\u1ea5u tr\u00fac.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 5: Tinh ch\u1ec9nh v\u00e0 ch\u00fa th\u00edch<\/h3>\n<p>Cu\u1ed1i c\u00f9ng, th\u00eam ghi ch\u00fa v\u00e0 r\u00e0ng bu\u1ed9c \u0111\u1ec3 l\u00e0m r\u00f5 c\u00e1c h\u00e0nh vi ph\u1ee9c t\u1ea1p.<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1c h\u1ed9p v\u0103n b\u1ea3n \u0111\u1ec3 gi\u1ea3i th\u00edch c\u00e1c giao th\u1ee9c t\u01b0\u01a1ng t\u00e1c c\u1ee5 th\u1ec3.<\/li>\n<li>Th\u00eam r\u00e0ng bu\u1ed9c b\u1eb1ng d\u1ea5u ngo\u1eb7c nh\u1ecdn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n (v\u00ed d\u1ee5,<code>{an to\u00e0n cho lu\u1ed3ng}<\/code>).<\/li>\n<li>Xem x\u00e9t l\u1ea1i s\u01a1 \u0111\u1ed3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed1i x\u1ee9ng v\u00e0 r\u00f5 r\u00e0ng. \u0110\u1ea3m b\u1ea3o c\u00e1c \u0111\u01b0\u1eddng kh\u00f4ng giao nhau m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n<h2>\ud83d\udccb So s\u00e1nh: C\u1ea5u tr\u00fac t\u1ed5ng h\u1ee3p so v\u1edbi L\u1edbp so v\u1edbi Th\u00e0nh ph\u1ea7n<\/h2>\n<p>R\u1ea5t ph\u1ed5 bi\u1ebfn khi nh\u1ea7m l\u1eabn s\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac t\u1ed5ng h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 L\u1edbp ho\u1eb7c s\u01a1 \u0111\u1ed3 Th\u00e0nh ph\u1ea7n. Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t s\u1ebd ng\u0103n ng\u1eeba sai s\u00f3t trong m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i s\u01a1 \u0111\u1ed3<\/th>\n<th>Tr\u1ecdng t\u00e2m<\/th>\n<th>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh<\/th>\n<th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>S\u01a1 \u0111\u1ed3 L\u1edbp<\/strong><\/td>\n<td>C\u1ea5u tr\u00fac t\u0129nh c\u1ee7a c\u00e1c l\u1edbp<\/td>\n<td>L\u1edbp, Thu\u1ed9c t\u00ednh, Thao t\u00e1c<\/td>\n<td>X\u00e1c \u0111\u1ecbnh c\u00e1c m\u00f4 h\u00ecnh d\u1eef li\u1ec7u v\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3.<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u01a1 \u0111\u1ed3 Th\u00e0nh ph\u1ea7n<\/strong><\/td>\n<td>C\u00e1c module v\u1eadt l\u00fd<\/td>\n<td>Th\u00e0nh ph\u1ea7n, Giao di\u1ec7n, N\u00fat<\/td>\n<td>Tr\u1ef1c quan h\u00f3a c\u00e1c l\u1edbp tri\u1ec3n khai v\u00e0 ki\u1ebfn tr\u00fac.<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac Ph\u1ee9c h\u1ee3p<\/strong><\/td>\n<td>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i<\/td>\n<td>C\u00e1c b\u1ed9 ph\u1eadn, C\u1ed5ng, K\u1ebft n\u1ed1i, Vai tr\u00f2<\/td>\n<td>Chi ti\u1ebft h\u00f3a c\u00e1ch k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 v\u00e0 t\u01b0\u01a1ng t\u00e1c c\u1ee7a m\u1ed9t th\u1ef1c th\u1ec3 ph\u1ee9c t\u1ea1p duy nh\u1ea5t.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Trong khi s\u01a1 \u0111\u1ed3 L\u1edbp cho th\u1ea5y L\u1edbp A c\u00f3 m\u1ed1i quan h\u1ec7 v\u1edbi L\u1edbp B, th\u00ec s\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac Ph\u1ee9c h\u1ee3p cho th\u1ea5y L\u1edbp A<em>ch\u1ee9a<\/em>m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee7a L\u1edbp B v\u00e0 \u0111\u1ecbnh tuy\u1ebfn tin nh\u1eafn \u0111\u1ebfn n\u00f3. S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng cho c\u00e1c giai \u0111o\u1ea1n thi\u1ebft k\u1ebf chi ti\u1ebft.<\/p>\n<h2>\ud83d\udca1 C\u00e1c Th\u1ef1c h\u00e0nh T\u1ed1t nh\u1ea5t trong M\u00f4 h\u00ecnh h\u00f3a<\/h2>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n v\u1eabn d\u1ec5 \u0111\u1ecdc v\u00e0 h\u1eefu \u00edch theo th\u1eddi gian, h\u00e3y tu\u00e2n theo c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y.<\/p>\n<ul>\n<li><strong>Gi\u1eef t\u1eadp trung:<\/strong>Kh\u00f4ng c\u1ed1 g\u1eafng m\u00f4 h\u00ecnh h\u00f3a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng trong m\u1ed9t s\u01a1 \u0111\u1ed3. Chia nh\u1ecf theo b\u1ed9 ph\u00e2n lo\u1ea1i. M\u1ed9t s\u01a1 \u0111\u1ed3 cho m\u1ed7i th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 l\u00fd t\u01b0\u1edfng.<\/li>\n<li><strong>S\u1eed d\u1ee5ng k\u00fd hi\u1ec7u chu\u1ea9n:<\/strong>Duy tr\u00ec c\u00e1c h\u00ecnh d\u1ea1ng UML ch\u00ednh th\u1ee9c. Vi\u1ec7c thay \u0111\u1ed5i k\u00fd hi\u1ec7u chu\u1ea9n s\u1ebd g\u00e2y nh\u1ea7m l\u1eabn cho c\u00e1c b\u00ean li\u00ean quan.<\/li>\n<li><strong>H\u1ea1n ch\u1ebf \u0111\u1ed9 ph\u1ee9c t\u1ea1p:<\/strong>N\u1ebfu m\u1ed9t s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean qu\u00e1 ch\u1eadt ch\u1ed9i, h\u00e3y c\u00e2n nh\u1eafc tr\u00edch xu\u1ea5t m\u1ed9t c\u1ea5u tr\u00fac con v\u00e0o m\u1ed9t s\u01a1 \u0111\u1ed3 ri\u00eang ho\u1eb7c s\u1eed d\u1ee5ng S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac Ph\u1ee9c h\u1ee3p G\u1ea5p l\u1ea1i.<\/li>\n<li><strong>T\u00ean g\u1ecdi nh\u1ea5t qu\u00e1n:<\/strong>\u0110\u1ea3m b\u1ea3o t\u00ean giao di\u1ec7n tr\u00ean c\u00e1c c\u1ed5ng tr\u00f9ng kh\u1edbp v\u1edbi c\u00e1c thao t\u00e1c m\u00e0 ch\u00fang \u0111\u1ecbnh ngh\u0129a. T\u00ednh nh\u1ea5t qu\u00e1n h\u1ed7 tr\u1ee3 sinh m\u00e3 t\u1ef1 \u0111\u1ed9ng.<\/li>\n<li><strong>L\u1ed3ng gh\u00e9p:<\/strong>S\u1eed d\u1ee5ng l\u1ed3ng gh\u00e9p \u0111\u1ec3 th\u1ec3 hi\u1ec7n th\u1ee9 b\u1eadc. N\u1ebfu m\u1ed9t b\u1ed9 ph\u1eadn ch\u1ee9a c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c, h\u00e3y v\u1ebd c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong b\u00ean trong khung b\u1ed9 ph\u1eadn b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n<h2>\ud83d\udeab Nh\u1eefng Sai l\u1ea7m Th\u01b0\u1eddng g\u1eb7p C\u1ea7n Tr\u00e1nh<\/h2>\n<p>Ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi m\u00f4 h\u00ecnh h\u00f3a c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. Nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian trong qu\u00e1 tr\u00ecnh xem x\u00e9t.<\/p>\n<ul>\n<li><strong>\u274c B\u1ecf qua \u0110a d\u1ea1ng t\u00ednh:<\/strong>Qu\u00ean ch\u1ec9 \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng b\u1ed9 ph\u1eadn t\u1ed3n t\u1ea1i c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i tri\u1ec3n khai. Lu\u00f4n x\u00e1c \u0111\u1ecbnh 1, 0..1, ho\u1eb7c *.<\/li>\n<li><strong>\u274c Tr\u1ed9n l\u1eabn C\u1ea5u tr\u00fac v\u00e0 H\u00e0nh vi:<\/strong> Trong khi c\u00e1c h\u1ee3p t\u00e1c \u0111\u1ecbnh ngh\u0129a h\u00e0nh vi, h\u00e3y gi\u1eef s\u1ef1 t\u1eadp trung v\u00e0o c\u1ea5u tr\u00fac. \u0110\u1eebng l\u00e0m r\u1ed1i diagram b\u1eb1ng logic c\u1ee7a s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/li>\n<li><strong>\u274c C\u00e1c c\u1ed5ng tr\u00f4i n\u1ed5i:<\/strong> \u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi ranh gi\u1edbi c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i ho\u1eb7c m\u1ed9t ph\u1ea7n n\u1ed9i b\u1ed9. C\u00e1c c\u1ed5ng b\u1ecb t\u00e1ch r\u1eddi cho th\u1ea5y vi\u1ec7c k\u1ebft n\u1ed1i ch\u01b0a ho\u00e0n ch\u1ec9nh.<\/li>\n<li><strong>\u274c C\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng l\u1eb7p:<\/strong> Tr\u00e1nh c\u00e1c v\u00f2ng l\u1eb7p n\u01a1i c\u00e1c ph\u1ea7n ph\u1ee5 thu\u1ed9c l\u1eabn nhau theo c\u00e1ch t\u1ea1o th\u00e0nh chu tr\u00ecnh. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng cho th\u1ea5y m\u1ed9t l\u1ed7i thi\u1ebft k\u1ebf.<\/li>\n<\/ul>\n<h2>\ud83d\udd17 C\u00e1c kh\u00e1i ni\u1ec7m n\u00e2ng cao: Vai tr\u00f2 v\u00e0 Vai tr\u00f2<\/h2>\n<p>M\u1ed9t vai tr\u00f2 l\u00e0 m\u1ed9t t\u00ean c\u1ee5 th\u1ec3 cho m\u1ed9t ph\u1ea7n trong b\u1ed1i c\u1ea3nh c\u1ee7a m\u1ed9t m\u1ed1i quan h\u1ec7. M\u1ed9t ph\u1ea7n l\u00e0 th\u1ef1c th\u1ec3 t\u1ed5ng qu\u00e1t; vai tr\u00f2 l\u00e0 c\u00e1ch n\u00f3 h\u00e0nh x\u1eed trong tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 \u0111\u00f3.<\/p>\n<ul>\n<li><strong>S\u1eed d\u1ee5ng theo b\u1ed1i c\u1ea3nh:<\/strong> N\u1ebfu m\u1ed9t ph\u1ea7n c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecdc, vai tr\u00f2 c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 l\u00e0 <code>Ng\u01b0\u1eddi \u0111\u1ecdc<\/code>. N\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ghi, vai tr\u00f2 l\u00e0 <code>Ng\u01b0\u1eddi vi\u1ebft<\/code>.<\/li>\n<li><strong>Li\u00ean k\u1ebft giao di\u1ec7n:<\/strong> C\u00e1c vai tr\u00f2 th\u01b0\u1eddng li\u00ean k\u1ebft v\u1edbi c\u00e1c giao di\u1ec7n c\u1ee5 th\u1ec3. \u0110i\u1ec1u n\u00e0y l\u00e0m r\u00f5 ph\u1ea7n n\u00e0o x\u1eed l\u00fd lo\u1ea1i y\u00eau c\u1ea7u n\u00e0o.<\/li>\n<li><strong>Tinh ch\u1ec9nh:<\/strong> B\u1ea1n c\u00f3 th\u1ec3 tinh ch\u1ec9nh m\u1ed9t vai tr\u00f2 \u0111\u1ec3 th\u00eam c\u00e1c r\u00e0ng bu\u1ed9c ho\u1eb7c h\u00e0nh vi c\u1ee5 th\u1ec3 ch\u1ec9 \u00e1p d\u1ee5ng cho t\u01b0\u01a1ng t\u00e1c \u0111\u00f3.<\/li>\n<\/ul>\n<h2>\ud83d\udd04 L\u1eb7p l\u1ea1i qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf<\/h2>\n<p>M\u00f4 h\u00ecnh h\u00f3a hi\u1ebfm khi l\u00e0 ho\u1ea1t \u0111\u1ed9ng m\u1ed9t l\u1ea7n. Khi y\u00eau c\u1ea7u thay \u0111\u1ed5i, s\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac T\u1ed5ng h\u1ee3p c\u1ee7a b\u1ea1n ph\u1ea3i ti\u1ebfn h\u00f3a theo.<\/p>\n<ol>\n<li><strong>T\u1ea7n su\u1ea5t xem x\u00e9t:<\/strong> Xem l\u1ea1i s\u01a1 \u0111\u1ed3 trong c\u00e1c bu\u1ed5i xem x\u00e9t thi\u1ebft k\u1ebf v\u00e0 phi\u00ean b\u1ea3n c\u1ea3i ti\u1ebfn.<\/li>\n<li><strong>Ph\u00e2n t\u00edch t\u00e1c \u0111\u1ed9ng:<\/strong> Tr\u01b0\u1edbc khi thay \u0111\u1ed5i m\u1ed9t ph\u1ea7n n\u1ed9i b\u1ed9, h\u00e3y ki\u1ec3m tra c\u00e1c c\u1ed5ng b\u00ean ngo\u00e0i n\u00e0o ph\u1ee5 thu\u1ed9c v\u00e0o n\u00f3.<\/li>\n<li><strong>T\u00e0i li\u1ec7u:<\/strong> C\u1eadp nh\u1eadt t\u00e0i li\u1ec7u v\u0103n b\u1ea3n \u0111i k\u00e8m \u0111\u1ec3 ph\u1ea3n \u00e1nh c\u00e1c thay \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac.<\/li>\n<li><strong>Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong> Xem t\u1ec7p s\u01a1 \u0111\u1ed3 nh\u01b0 m\u00e3 ngu\u1ed3n. G\u1eedi thay \u0111\u1ed5i v\u1edbi th\u00f4ng b\u00e1o m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng.<\/li>\n<\/ol>\n<h2>\ud83d\udcdd T\u00f3m t\u1eaft nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n<p>S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac T\u1ed5ng h\u1ee3p UML l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd cho ph\u00e2n t\u00edch c\u1ea5u tr\u00fac s\u00e2u. N\u00f3 v\u01b0\u1ee3t ra ngo\u00e0i m\u1ee9c \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c m\u1ed1i quan h\u1ec7 \u0111\u1ec3 ti\u1ebft l\u1ed9 b\u1ed9 m\u00e1y c\u1ee7a m\u1ed9t b\u1ed9 ph\u00e2n lo\u1ea1i. B\u1eb1ng c\u00e1ch t\u1eadp trung v\u00e0o c\u00e1c ph\u1ea7n, c\u1ed5ng v\u00e0 b\u1ed9 n\u1ed1i, b\u1ea1n c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y logic n\u1ed9i b\u1ed9 \u0111i\u1ec1u khi\u1ec3n h\u00e0nh vi h\u1ec7 th\u1ed1ng.<\/p>\n<p>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb bao g\u1ed3m:<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 n\u00e0y cho c\u1ea5u tr\u00fac b\u00ean trong, ch\u1ee9 kh\u00f4ng ch\u1ec9 c\u00e1c m\u1ed1i quan h\u1ec7 b\u00ean ngo\u00e0i.<\/li>\n<li>Ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c k\u1ebft n\u1ed1i l\u1eafp r\u00e1p v\u00e0 k\u1ebft n\u1ed1i \u1ee7y quy\u1ec1n.<\/li>\n<li>Duy tr\u00ec tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c k\u00fd hi\u1ec7u UML \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u00f5 r\u00e0ng.<\/li>\n<li>Gi\u1eef c\u00e1c s\u01a1 \u0111\u1ed3 theo m\u00f4-\u0111un \u0111\u1ec3 tr\u00e1nh s\u1ef1 l\u1ed9n x\u1ed9n v\u1ec1 m\u1eb7t th\u1ecb gi\u00e1c.<\/li>\n<\/ul>\n<p>Khi \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch, lo\u1ea1i s\u01a1 \u0111\u1ed3 n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n giao ti\u1ebfp gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 ng\u01b0\u1eddi ki\u1ec3m th\u1eed. N\u00f3 cung c\u1ea5p m\u1ed9t b\u1ea3n v\u1ebd ph\u00e1c h\u1ecda \u0111\u1ee7 ch\u00ednh x\u00e1c \u0111\u1ec3 tri\u1ec3n khai v\u00e0 \u0111\u1ee7 r\u00f5 r\u00e0ng \u0111\u1ec3 xem x\u00e9t. D\u00f9 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m doanh nghi\u1ec7p ph\u1ee9c t\u1ea1p hay c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang, c\u1ea5u tr\u00fac b\u00ean trong \u0111\u1ec1u quan tr\u1ecdng. H\u00e3y d\u00e0nh th\u1eddi gian \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a n\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n<h2>\ud83c\udf93 Nh\u1eefng suy ngh\u0129 cu\u1ed1i c\u00f9ng v\u1ec1 tri\u1ec3n khai<\/h2>\n<p>Vi\u1ec7c tri\u1ec3n khai c\u00e1c kh\u00e1i ni\u1ec7m trong s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i c\u1ea9n th\u1eadn sang m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh \u0111\u00e3 ch\u1ecdn. Trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u1ee9ng tr\u1ef1c ti\u1ebfp v\u1edbi vi\u1ec7c k\u1ebft h\u1ee3p l\u1edbp v\u00e0 tri\u1ec3n khai giao di\u1ec7n. Trong c\u00e1c ki\u1ebfn tr\u00fac h\u01b0\u1edbng d\u1ecbch v\u1ee5, n\u00f3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c h\u1ee3p \u0111\u1ed3ng d\u1ecbch v\u1ee5 v\u00e0 c\u00e1c m\u00e1y trung gian tin nh\u1eafn n\u1ed9i b\u1ed9.<\/p>\n<p>S\u1ef1 k\u1ef7 lu\u1eadt trong vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac b\u00ean trong bu\u1ed9c b\u1ea1n ph\u1ea3i suy ngh\u0129 v\u1ec1 \u0111\u1ed9 li\u00ean k\u1ebft v\u00e0 t\u00ednh g\u1eafn k\u1ebft. N\u1ebfu m\u1ed9t th\u00e0nh ph\u1ea7n y\u00eau c\u1ea7u qu\u00e1 nhi\u1ec1u giao di\u1ec7n, c\u00f3 th\u1ec3 n\u00f3 qu\u00e1 ph\u1ee9c t\u1ea1p. N\u1ebfu m\u1ed9t th\u00e0nh ph\u1ea7n cung c\u1ea5p qu\u00e1 \u00edt, c\u00f3 th\u1ec3 n\u00f3 kh\u00f4ng th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. S\u01a1 \u0111\u1ed3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t ki\u1ec3m to\u00e1n tr\u1ef1c quan cho c\u00e1c nguy\u00ean t\u1eafc ki\u1ebfn tr\u00fac n\u00e0y.<\/p>\n<p>B\u1eaft \u0111\u1ea7u nh\u1ecf. M\u00f4 h\u00ecnh h\u00f3a m\u1ed9t l\u1edbp duy nh\u1ea5t v\u1edbi m\u1ed9t v\u00e0i ph\u1ee5 thu\u1ed9c b\u00ean trong. Th\u1ef1c h\u00e0nh x\u00e1c \u0111\u1ecbnh c\u00e1c c\u1ed5ng v\u00e0 k\u1ebft n\u1ed1i ch\u00fang. Khi b\u1ea1n t\u1ef1 tin h\u01a1n, h\u00e3y m\u1edf r\u1ed9ng sang c\u00e1c th\u00e0nh ph\u1ea7n l\u1edbn h\u01a1n. K\u1ef9 n\u0103ng m\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eebng b\u01b0\u1edbc m\u1ed9t, gi\u1ed1ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng b\u1ea1n s\u1ebd thi\u1ebft k\u1ebf.<\/p>\n<p>B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c n\u00eau trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00f4ng ch\u1ec9 l\u00e0 c\u00f4ng c\u1ee5 tr\u1ef1c quan, m\u00e0 c\u00f2n l\u00e0 c\u00e1c t\u00e0i li\u1ec7u \u0111\u1eb7c t\u1ea3 ch\u1ee9c n\u0103ng. Ch\u00fang tr\u1edf th\u00e0nh h\u1ee3p \u0111\u1ed3ng gi\u1eefa thi\u1ebft k\u1ebf v\u00e0 m\u00e3 ngu\u1ed3n. \u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u00f4 h\u00ecnh c\u1ee7a b\u1ea1n lu\u00f4n ch\u00ednh x\u00e1c khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, v\u00e0 ch\u00fang s\u1ebd lu\u00f4n l\u00e0 t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 trong su\u1ed1t v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00f4 h\u00ecnh h\u00f3a c\u1ea5u tr\u00fac t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho b\u1ea5t k\u1ef3 ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m n\u00e0o v\u1eefng ch\u1eafc. M\u1eb7c d\u00f9 nhi\u1ec1u ng\u01b0\u1eddi quen thu\u1ed9c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp&hellip;<\/p>\n","protected":false},"author":1,"featured_media":110,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"H\u01b0\u1edbng d\u1eabn S\u01a1 \u0111\u1ed3 C\u1ea5u tr\u00fac H\u1ee3p th\u00e0nh UML: X\u00e2y d\u1ef1ng v\u00e0 Thi\u1ebft k\u1ebf","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch x\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac h\u1ee3p th\u00e0nh UML. 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