{"id":1848,"date":"2026-04-13T08:51:47","date_gmt":"2026-04-13T08:51:47","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/quick-start-drawing-first-uml-package-diagram\/"},"modified":"2026-04-13T08:51:47","modified_gmt":"2026-04-13T08:51:47","slug":"quick-start-drawing-first-uml-package-diagram","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/quick-start-drawing-first-uml-package-diagram\/","title":{"rendered":"B\u1eaft \u0111\u1ea7u nhanh: V\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i UML \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n trong v\u00e0i ph\u00fat"},"content":{"rendered":"<p>Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c v\u00e0o giao ti\u1ebfp r\u00f5 r\u00e0ng. Khi c\u00e1c h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p, vi\u1ec7c tr\u1ef1c quan h\u00f3a t\u1ed5 ch\u1ee9c c\u1ea5p cao c\u1ee7a m\u00e3 ngu\u1ed3n tr\u1edf n\u00ean thi\u1ebft y\u1ebfu. S\u01a1 \u0111\u1ed3 G\u00f3i UML \u0111\u00e1p \u1ee9ng ho\u00e0n h\u1ea3o m\u1ee5c \u0111\u00edch n\u00e0y. N\u00f3 cung c\u1ea5p c\u00e1i nh\u00ecn c\u1ea5u tr\u00fac v\u1ec1 h\u1ec7 th\u1ed1ng, cho th\u1ea5y c\u00e1ch c\u00e1c m\u00f4-\u0111un kh\u00e1c nhau li\u00ean k\u1ebft v\u1edbi nhau m\u00e0 kh\u00f4ng b\u1ecb sa \u0111\u00e0 v\u00e0o chi ti\u1ebft tri\u1ec3n khai. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd d\u1eabn b\u1ea1n qua qu\u00e1 tr\u00ecnh t\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 nh\u01b0 v\u1eady, \u0111\u1ea3m b\u1ea3o b\u1ea1n hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i v\u00e0 c\u00e1c b\u01b0\u1edbc th\u1ef1c t\u1ebf li\u00ean quan.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn infographic guide to UML Package Diagrams showing package symbols (rectangle with tab), relationship notations (dependency arrows, associations, generalizations), visibility modifiers, 5-step creation process (define scope, identify packages, arrange layout, draw relationships, add details), and best practices for clean software architecture modeling with thick outline sketch style\" decoding=\"async\" src=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/04\/uml-package-diagram-quick-start-infographic-hand-drawn.jpg\"\/><\/figure>\n<\/div>\n<h2>Hi\u1ec3u r\u00f5 kh\u00e1i ni\u1ec7m G\u00f3i \ud83d\udce6<\/h2>\n<p>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u v\u1ebd, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u m\u1ed9t <strong>g\u00f3i<\/strong>bi\u1ec3u di\u1ec5n trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML). M\u1ed9t g\u00f3i l\u00e0 m\u1ed9t kh\u00f4ng gian t\u00ean t\u1ed5 ch\u1ee9c m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan. H\u00e3y h\u00ecnh dung n\u00f3 nh\u01b0 m\u1ed9t th\u01b0 m\u1ee5c tr\u00ean m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n ch\u1ee9a c\u00e1c t\u1ec7p li\u00ean quan. Trong ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y th\u01b0\u1eddng l\u00e0 l\u1edbp, giao di\u1ec7n, h\u1ec7 th\u1ed1ng con ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 c\u00e1c g\u00f3i kh\u00e1c.<\/p>\n<p>T\u1ea1i sao l\u1ea1i s\u1eed d\u1ee5ng g\u00f3i? Ch\u00fang gi\u00fap qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p. Thay v\u00ec xem h\u00e0ng ng\u00e0n l\u1edbp c\u00f9ng l\u00fac, b\u1ea1n nh\u00f3m ch\u00fang th\u00e0nh c\u00e1c \u0111\u01a1n v\u1ecb h\u1ee3p l\u00fd. S\u1ef1 tr\u1eebu t\u01b0\u1ee3ng n\u00e0y gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n t\u1eadp trung v\u00e0o c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng trong khi v\u1eabn hi\u1ec3u r\u00f5 ranh gi\u1edbi c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh.<\/p>\n<h3>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a c\u00e1c g\u00f3i<\/h3>\n<ul>\n<li><strong>Qu\u1ea3n l\u00fd kh\u00f4ng gian t\u00ean:<\/strong> C\u00e1c g\u00f3i ng\u0103n ch\u1eb7n xung \u0111\u1ed9t t\u00ean. M\u1ed9t l\u1edbp c\u00f3 t\u00ean <code>User<\/code> trong m\u1ed9t g\u00f3i s\u1ebd kh\u00f4ng xung \u0111\u1ed9t v\u1edbi m\u1ed9t l\u1edbp c\u00f3 t\u00ean <code>User<\/code> trong m\u1ed9t g\u00f3i kh\u00e1c.<\/li>\n<li><strong>Nh\u00f3m logic:<\/strong> Ch\u00fang nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n d\u1ef1a tr\u00ean ch\u1ee9c n\u0103ng, tr\u00e1ch nhi\u1ec7m ho\u1eb7c h\u1ec7 th\u1ed1ng con.<\/li>\n<li><strong>Ki\u1ec3m so\u00e1t t\u00ednh hi\u1ec3n th\u1ecb:<\/strong> C\u00e1c g\u00f3i x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0o c\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb c\u00e1c ph\u1ea7n kh\u00e1c c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u1eabn gi\u1eef ri\u00eang t\u01b0.<\/li>\n<li><strong>X\u1eed l\u00fd ph\u1ee5 thu\u1ed9c:<\/strong> Ch\u00fang cho th\u1ea5y c\u00e1c m\u00f4-\u0111un ph\u1ee5 thu\u1ed9c v\u00e0o nhau nh\u01b0 th\u1ebf n\u00e0o, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 hi\u1ec3u \u0111\u1ed9 li\u00ean k\u1ebft c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<h2>C\u00e1c k\u00fd hi\u1ec7u v\u00e0 k\u00fd ph\u00e1p c\u1ed1t l\u00f5i \ud83c\udfa8<\/h2>\n<p>UML l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef v\u1edbi c\u00e1c quy t\u1eafc c\u1ee5 th\u1ec3. \u0110\u1ec3 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 h\u1ee3p l\u1ec7, b\u1ea1n ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c k\u00fd ph\u00e1p chu\u1ea9n. D\u00f9 c\u00f4ng c\u1ee5 kh\u00e1c nhau, c\u00e1ch bi\u1ec3u di\u1ec5n h\u00ecnh \u1ea3nh c\u1ee7a c\u00e1c g\u00f3i v\u1eabn nh\u1ea5t qu\u00e1n trong to\u00e0n ng\u00e0nh.<\/p>\n<h3>Bi\u1ec3u di\u1ec5n h\u00ecnh \u1ea3nh<\/h3>\n<p>M\u1ed9t g\u00f3i th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 m\u1ed9t tab \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i. T\u00ean c\u1ee7a g\u00f3i \u0111\u01b0\u1ee3c ghi b\u00ean trong tab \u0111\u00f3. N\u1ebfu g\u00f3i ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n, ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea b\u00ean trong th\u00e2n ch\u00ednh c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt.<\/p>\n<h3>B\u1ea3ng c\u00e1c k\u00fd hi\u1ec7u th\u00f4ng d\u1ee5ng<\/h3>\n<table>\n<thead>\n<tr>\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<th>M\u00f4 t\u1ea3 h\u00ecnh \u1ea3nh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>G\u00f3i<\/td>\n<td>Kh\u00f4ng gian t\u00ean \u0111\u1ec3 nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n<\/td>\n<td>H\u00ecnh ch\u1eef nh\u1eadt c\u00f3 m\u1ed9t tab \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i<\/td>\n<\/tr>\n<tr>\n<td>S\u1ef1 ph\u1ee5 thu\u1ed9c<\/td>\n<td>M\u1ed9t ph\u1ea7n t\u1eed s\u1eed d\u1ee5ng ph\u1ea7n t\u1eed kh\u00e1c<\/td>\n<td>M\u0169i t\u00ean g\u1ea1ch n\u1ed1i v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean h\u1edf<\/td>\n<\/tr>\n<tr>\n<td>Li\u00ean k\u1ebft<\/td>\n<td>M\u1ed1i quan h\u1ec7 c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c ph\u1ea7n t\u1eed<\/td>\n<td>\u0110\u01b0\u1eddng li\u1ec1n<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed5ng qu\u00e1t h\u00f3a<\/td>\n<td>M\u1ed1i quan h\u1ec7 k\u1ebf th\u1eeba<\/td>\n<td>\u0110\u01b0\u1eddng li\u1ec1n v\u1edbi tam gi\u00e1c r\u1ed7ng<\/td>\n<\/tr>\n<tr>\n<td>Th\u1ef1c hi\u1ec7n<\/td>\n<td>Tri\u1ec3n khai c\u1ee7a m\u1ed9t giao di\u1ec7n<\/td>\n<td>\u0110\u01b0\u1eddng g\u1ea1ch n\u1ed1i v\u1edbi tam gi\u00e1c r\u1ed7ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 s\u1ef1 ph\u1ee5 thu\u1ed9c \ud83d\udd17<\/h2>\n<p>S\u1ee9c m\u1ea1nh th\u1ef1c s\u1ef1 c\u1ee7a s\u01a1 \u0111\u1ed3 g\u00f3i n\u1eb1m \u1edf c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c g\u00f3i. Nh\u1eefng k\u1ebft n\u1ed1i n\u00e0y m\u00f4 t\u1ea3 c\u00e1ch h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u00e0 c\u00e1ch thay \u0111\u1ed5i \u1edf m\u1ed9t khu v\u1ef1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c khu v\u1ef1c kh\u00e1c.<\/p>\n<h3>C\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c<\/h3>\n<p>M\u1ed9t m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c t\u1ed3n t\u1ea1i khi m\u1ed9t thay \u0111\u1ed5i \u1edf m\u1ed9t ph\u1ea7n t\u1eed y\u00eau c\u1ea7u thay \u0111\u1ed5i \u1edf ph\u1ea7n t\u1eed kh\u00e1c. Trong s\u01a1 \u0111\u1ed3 g\u00f3i, \u0111\u00e2y th\u01b0\u1eddng l\u00e0 m\u1ed1i quan h\u1ec7 ph\u1ed5 bi\u1ebfn nh\u1ea5t. N\u00f3 cho th\u1ea5y r\u1eb1ng m\u1ed9t g\u00f3i c\u1ea7n bi\u1ebft v\u1ec1 giao di\u1ec7n c\u1ee7a g\u00f3i kh\u00e1c \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch.<\/p>\n<ul>\n<li><strong>Nh\u1eadp:<\/strong> M\u1ed9t g\u00f3i nh\u1eadp r\u00f5 r\u00e0ng c\u00e1c ph\u1ea7n t\u1eed t\u1eeb g\u00f3i kh\u00e1c, l\u00e0m cho ch\u00fang c\u00f3 s\u1eb5n trong kh\u00f4ng gian t\u00ean c\u1ee7a n\u00f3.<\/li>\n<li><strong>S\u1eed d\u1ee5ng:<\/strong> M\u1ed9t g\u00f3i s\u1eed d\u1ee5ng m\u1ed9t thao t\u00e1c ho\u1eb7c thu\u1ed9c t\u00ednh t\u1eeb g\u00f3i kh\u00e1c m\u00e0 kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i nh\u1eadp n\u00f3.<\/li>\n<li><strong>G\u1ecdi:<\/strong> M\u1ed9t g\u00f3i g\u1ecdi m\u1ed9t d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi g\u00f3i kh\u00e1c.<\/li>\n<\/ul>\n<h3>T\u00ednh kh\u1ea3 ki\u1ebfn v\u00e0 quy\u1ec1n truy c\u1eadp<\/h3>\n<p>Hi\u1ec3u r\u00f5 v\u1ec1 t\u00ednh kh\u1ea3 ki\u1ebfn l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 duy tr\u00ec m\u1ed9t ki\u1ebfn tr\u00fac l\u00e0nh m\u1ea1nh. C\u00e1c g\u00f3i c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c ph\u1ea7n t\u1eed n\u1ed9i b\u1ed9 c\u1ee7a ch\u00fang.<\/p>\n<ul>\n<li><strong>+ C\u00f4ng khai:<\/strong> C\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u1edfi t\u1ea5t c\u1ea3 c\u00e1c g\u00f3i kh\u00e1c.<\/li>\n<li><strong>\u2013 Ri\u00eang t\u01b0:<\/strong> Ch\u1ec9 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u00ean trong c\u00f9ng m\u1ed9t g\u00f3i.<\/li>\n<li><strong># B\u1ea3o v\u1ec7:<\/strong> C\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y trong g\u00f3i v\u00e0 b\u1edfi c\u00e1c g\u00f3i \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb n\u00f3.<\/li>\n<li><strong>~ G\u00f3i:<\/strong> Ch\u1ec9 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u1edfi c\u00e1c g\u00f3i kh\u00e1c trong c\u00f9ng m\u1ed9t kh\u00f4ng gian t\u00ean.<\/li>\n<\/ul>\n<p>Khi v\u1ebd c\u00e1c \u0111\u01b0\u1eddng gi\u1eefa c\u00e1c g\u00f3i, h\u00e3y s\u1eed d\u1ee5ng \u0111\u1ea7u m\u0169i t\u00ean v\u00e0 ki\u1ec3u \u0111\u01b0\u1eddng ph\u00f9 h\u1ee3p \u0111\u1ec3 bi\u1ec3u th\u1ecb lo\u1ea1i m\u1ed1i quan h\u1ec7. M\u1ed9t \u0111\u01b0\u1eddng \u0111\u1ee9t \u0111o\u1ea1n v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean m\u1edf l\u00e0 chu\u1ea9n cho c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c.<\/p>\n<h2>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc t\u1ea1o l\u1eadp \ud83d\udee0\ufe0f<\/h2>\n<p>Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 \u0111\u00f2i h\u1ecfi m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng. H\u00e3y tu\u00e2n theo c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh c\u1ee7a b\u1ea1n ch\u00ednh x\u00e1c v\u00e0 h\u1eefu \u00edch.<\/p>\n<h3>1. X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi<\/h3>\n<p>Tr\u01b0\u1edbc khi m\u1edf giao di\u1ec7n m\u00f4 h\u00ecnh h\u00f3a, h\u00e3y x\u00e1c \u0111\u1ecbnh b\u1ea1n \u0111ang m\u00f4 h\u00ecnh h\u00f3a \u0111i\u1ec1u g\u00ec. Li\u1ec7u \u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, m\u1ed9t h\u1ec7 th\u1ed1ng con c\u1ee5 th\u1ec3 hay m\u1ed9t t\u00ednh n\u0103ng m\u1edbi? M\u1ed9t s\u01a1 \u0111\u1ed3 c\u1ed1 g\u1eafng th\u1ec3 hi\u1ec7n m\u1ecdi th\u1ee9 s\u1ebd tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. H\u00e3y t\u1eadp trung v\u00e0o c\u00e1c ranh gi\u1edbi li\u00ean quan.<\/p>\n<ul>\n<li>X\u00e1c \u0111\u1ecbnh c\u00e1c module c\u1ea5p cao nh\u1ea5t.<\/li>\n<li>X\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 chi ti\u1ebft c\u1ea7n thi\u1ebft.<\/li>\n<li>Quy\u1ebft \u0111\u1ecbnh c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0o s\u01a1 \u0111\u1ed3 g\u00f3i n\u00e0y s\u1ebd b\u1ed5 tr\u1ee3.<\/li>\n<\/ul>\n<h3>2. X\u00e1c \u0111\u1ecbnh c\u00e1c g\u00f3i<\/h3>\n<p>Li\u1ec7t k\u00ea c\u00e1c nh\u00f3m logic c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. Nh\u1eefng nh\u00f3m n\u00e0y n\u00ean \u0111\u1ea1i di\u1ec7n cho c\u00e1c khu v\u1ef1c ch\u1ee9c n\u0103ng ch\u00ednh.<\/p>\n<ul>\n<li><strong>L\u00f5i logic:<\/strong> C\u00e1c quy t\u1eafc kinh doanh v\u00e0 b\u1ed9 x\u1eed l\u00fd.<\/li>\n<li><strong>Truy c\u1eadp d\u1eef li\u1ec7u:<\/strong> T\u01b0\u01a1ng t\u00e1c v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 l\u01b0u tr\u1eef.<\/li>\n<li><strong>Giao di\u1ec7n:<\/strong> C\u00e1c th\u00e0nh ph\u1ea7n d\u00e0nh cho ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c \u0111i\u1ec3m cu\u1ed1i API.<\/li>\n<li><strong>C\u00f4ng c\u1ee5:<\/strong> C\u00e1c h\u00e0m h\u1ed7 tr\u1ee3 v\u00e0 c\u00f4ng c\u1ee5 chung.<\/li>\n<\/ul>\n<h3>3. S\u1eafp x\u1ebfp b\u1ed1 c\u1ee5c<\/h3>\n<p>\u0110\u1eb7t c\u00e1c g\u00f3i l\u00ean b\u1ea3ng v\u1ebd. Nh\u00f3m c\u00e1c g\u00f3i li\u00ean quan l\u1ea1i v\u1edbi nhau v\u1ec1 m\u1eb7t kh\u00f4ng gian \u0111\u1ec3 ph\u1ea3n \u00e1nh s\u1ef1 g\u1ea7n g\u0169i v\u1ec1 m\u1eb7t logic. S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 c\u0103n ch\u1ec9nh \u0111\u1ec3 gi\u1eef c\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 d\u1ec5 \u0111\u1ecdc.<\/p>\n<ul>\n<li>\u0110\u1eb7t c\u00e1c g\u00f3i trung t\u00e2m ho\u1eb7c c\u1ed1t l\u00f5i nh\u1ea5t \u1edf gi\u1eefa.<\/li>\n<li>\u0110\u1eb7t c\u00e1c g\u00f3i ph\u1ee5 thu\u1ed9c g\u1ea7n c\u00e1c g\u00f3i m\u00e0 ch\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o.<\/li>\n<li>S\u1eed d\u1ee5ng c\u00e1c l\u1edbp n\u1ebfu h\u1ec7 th\u1ed1ng c\u00f3 th\u1ee9 b\u1eadc r\u00f5 r\u00e0ng (v\u00ed d\u1ee5: Giao di\u1ec7n, Kinh doanh, D\u1eef li\u1ec7u).<\/li>\n<\/ul>\n<h3>4. V\u1ebd c\u00e1c m\u1ed1i quan h\u1ec7<\/h3>\n<p>K\u1ebft n\u1ed1i c\u00e1c g\u00f3i b\u1eb1ng c\u00e1c k\u00fd hi\u1ec7u ph\u00f9 h\u1ee3p. H\u00e3y ch\u00ednh x\u00e1c. M\u1ed9t m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c ph\u1ea3i ch\u1ec9 t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng (b\u00ean \u0111ang s\u1eed d\u1ee5ng) \u0111\u1ebfn ph\u00eda nh\u00e0 cung c\u1ea5p (b\u00ean \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng).<\/p>\n<ul>\n<li>Ch\u1ecdn c\u00f4ng c\u1ee5 ph\u1ee5 thu\u1ed9c.<\/li>\n<li>Nh\u1ea5p v\u00e0o g\u00f3i ngu\u1ed3n.<\/li>\n<li>K\u00e9o \u0111\u1ebfn g\u00f3i m\u1ee5c ti\u00eau.<\/li>\n<li>G\u1eafn nh\u00e3n m\u1ed1i quan h\u1ec7 n\u1ebfu c\u1ea7n thi\u1ebft (v\u00ed d\u1ee5: \u201cs\u1eed d\u1ee5ng\u201d, \u201cph\u1ee5 thu\u1ed9c v\u00e0o\u201d).<\/li>\n<\/ul>\n<h3>5. Th\u00eam c\u1ea5u tr\u00fac b\u00ean trong (t\u00f9y ch\u1ecdn)<\/h3>\n<p>N\u1ebfu s\u01a1 \u0111\u1ed3 g\u00f3i c\u1ea7n th\u1ec3 hi\u1ec7n chi ti\u1ebft h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt g\u00f3i. Li\u1ec7t k\u00ea c\u00e1c l\u1edbp ho\u1eb7c giao di\u1ec7n \u0111\u01b0\u1ee3c ch\u1ee9a b\u00ean trong.<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng th\u1ee5t l\u1ec1 \u0111\u1ec3 th\u1ec3 hi\u1ec7n th\u1ee9 b\u1eadc.<\/li>\n<li>Gi\u1eef danh s\u00e1ch ng\u1eafn g\u1ecdn \u0111\u1ec3 tr\u00e1nh r\u1ed1i m\u1eaft.<\/li>\n<li>T\u1eadp trung v\u00e0o c\u00e1c giao di\u1ec7n c\u00f4ng khai thay v\u00ec chi ti\u1ebft tri\u1ec3n khai ri\u00eang t\u01b0.<\/li>\n<\/ul>\n<h2>C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t cho m\u00f4 h\u00ecnh s\u1ea1ch \ud83d\udcdd<\/h2>\n<p>M\u1ed9t s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c v\u1ebd t\u1ed1t s\u1ebd truy\u1ec1n \u0111\u1ea1t hi\u1ec7u qu\u1ea3. M\u1ed9t s\u01a1 \u0111\u1ed3 l\u1ed9n x\u1ed9n s\u1ebd l\u00e0m ng\u01b0\u1eddi xem b\u1ed1i r\u1ed1i. Tu\u00e2n theo c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u1ec3 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<h3>1. Quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nh\u1ea5t qu\u00e1n<\/h3>\n<p>\u0110\u1eb7t t\u00ean l\u00e0 \u0111i\u1ec3m ti\u1ebfp x\u00fac \u0111\u1ea7u ti\u00ean \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi \u0111\u1ecdc. S\u1eed d\u1ee5ng t\u00ean r\u00f5 r\u00e0ng, m\u00f4 t\u1ea3 cho c\u00e1c g\u00f3i v\u00e0 th\u00e0nh ph\u1ea7n.<\/p>\n<ul>\n<li>Tr\u00e1nh s\u1eed d\u1ee5ng t\u00ean m\u1ed9t ch\u1eef nh\u01b0<code>A<\/code>, <code>B<\/code>, ho\u1eb7c<code>X<\/code>.<\/li>\n<li>S\u1eed d\u1ee5ng camelCase ho\u1eb7c PascalCase m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o t\u00ean ph\u1ea3n \u00e1nh n\u1ed9i dung (v\u00ed d\u1ee5: <code>PaymentProcessing<\/code> thay v\u00ec<code>Core<\/code>).<\/li>\n<li>S\u1eed d\u1ee5ng danh t\u1eeb cho c\u00e1c g\u00f3i v\u00e0 \u0111\u1ed9ng t\u1eeb cho h\u00e0nh \u0111\u1ed9ng n\u1ebfu g\u1eafn nh\u00e3n m\u1ed1i quan h\u1ec7.<\/li>\n<\/ul>\n<h3>2. T\u1ed1i thi\u1ec3u h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c g\u00f3i<\/h3>\n<p>S\u1ef1 g\u1eafn k\u1ebft cao khi\u1ebfn h\u1ec7 th\u1ed1ng kh\u00f3 b\u1ea3o tr\u00ec. Nh\u1eafm \u0111\u1ebfn s\u1ef1 g\u1eafn k\u1ebft th\u1ea5p gi\u1eefa c\u00e1c g\u00f3i.<\/p>\n<ul>\n<li>Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng m\u0169i t\u00ean ch\u1ec9 gi\u1eefa c\u00e1c g\u00f3i c\u00e1ch xa nhau.<\/li>\n<li>Gi\u1edbi thi\u1ec7u m\u1ed9t l\u1edbp giao di\u1ec7n n\u1ebfu m\u1ed9t ph\u1ee5 thu\u1ed9c qu\u00e1 s\u00e2u.<\/li>\n<li>Xem x\u00e9t c\u1ea9n th\u1eadn c\u00e1c ph\u1ee5 thu\u1ed9c v\u00f2ng l\u1eb7p; ch\u00fang th\u01b0\u1eddng cho th\u1ea5y m\u1ed9t l\u1ed7i thi\u1ebft k\u1ebf.<\/li>\n<\/ul>\n<h3>3. Duy tr\u00ec th\u1ee9 b\u1eadc<\/h3>\n<p>Kh\u00f4ng \u0111\u01b0\u1ee3c tr\u1ed9n c\u00e1c m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng. N\u1ebfu m\u1ed9t g\u00f3i ch\u1ee9a c\u00e1c g\u00f3i con, h\u00e3y \u0111\u1ea3m b\u1ea3o m\u1ed1i quan h\u1ec7 l\u00e0 r\u00f5 r\u00e0ng.<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u1ea5u tr\u00fac l\u1ed3ng gh\u00e9p cho c\u00e1c g\u00f3i con.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o c\u00e1c g\u00f3i cha \u0111\u1ea1i di\u1ec7n cho t\u1ed5ng h\u1ee3p c\u1ee7a c\u00e1c g\u00f3i con.<\/li>\n<li>Kh\u00f4ng hi\u1ec3n th\u1ecb c\u00f9ng m\u1ed9t ph\u1ea7n t\u1eed trong nhi\u1ec1u g\u00f3i c\u1ea5p cao nh\u1ea5t tr\u1eeb khi c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u00e0m r\u00f5.<\/li>\n<\/ul>\n<h3>4. C\u1eadp nh\u1eadt \u0111\u1ecbnh k\u1ef3<\/h3>\n<p>M\u1ed9t s\u01a1 \u0111\u1ed3 kh\u00f4ng kh\u1edbp v\u1edbi m\u00e3 ngu\u1ed3n c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3. H\u00e3y gi\u1eef cho n\u00f3 \u0111\u1ed3ng b\u1ed9.<\/p>\n<ul>\n<li>C\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 khi m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c t\u00e1i c\u1ea5u tr\u00fac.<\/li>\n<li>Xem x\u00e9t s\u01a1 \u0111\u1ed3 trong c\u00e1c \u0111\u1ee3t thi\u1ebft k\u1ebf.<\/li>\n<li>L\u01b0u tr\u1eef c\u00e1c phi\u00ean b\u1ea3n c\u0169 n\u1ebfu h\u1ec7 th\u1ed1ng \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u00e1ng k\u1ec3.<\/li>\n<\/ul>\n<h2>Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh \u26a0\ufe0f<\/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 \u0111i\u1ec3m nguy hi\u1ec3m ph\u1ed5 bi\u1ebfn s\u1ebd ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 tr\u00e1nh g\u00e2y nh\u1ea7m l\u1eabn.<\/p>\n<h3>1. Qu\u00e1 chi ti\u1ebft<\/h3>\n<p>M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 c\u1ed1 g\u1eafng hi\u1ec3n th\u1ecb qu\u00e1 nhi\u1ec1u chi ti\u1ebft trong s\u01a1 \u0111\u1ed3 g\u00f3i. \u0110i\u1ec1u n\u00e0y bi\u1ebfn m\u1ed9t c\u00e1i nh\u00ecn c\u1ea5p cao th\u00e0nh s\u01a1 \u0111\u1ed3 l\u1edbp.<\/p>\n<ul>\n<li>Kh\u00f4ng li\u1ec7t k\u00ea t\u1eebng thu\u1ed9c t\u00ednh hay ph\u01b0\u01a1ng th\u1ee9c m\u1ed9t c\u00e1ch ri\u00eang l\u1ebb.<\/li>\n<li>T\u1eadp trung v\u00e0o ranh gi\u1edbi g\u00f3i, ch\u1ee9 kh\u00f4ng ph\u1ea3i tri\u1ec3n khai b\u00ean trong.<\/li>\n<li>N\u1ebfu b\u1ea1n c\u1ea7n hi\u1ec3n th\u1ecb chi ti\u1ebft l\u1edbp, h\u00e3y t\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 L\u1edbp ri\u00eang bi\u1ec7t.<\/li>\n<\/ul>\n<h3>2. M\u1ed1i quan h\u1ec7 kh\u00f4ng nh\u1ea5t qu\u00e1n<\/h3>\n<p>S\u1eed d\u1ee5ng c\u00e1c ki\u1ec3u \u0111\u01b0\u1eddng kh\u00e1c nhau cho c\u00f9ng m\u1ed9t lo\u1ea1i m\u1ed1i quan h\u1ec7 s\u1ebd t\u1ea1o ra s\u1ef1 m\u01a1 h\u1ed3.<\/p>\n<ul>\n<li>Lu\u00f4n s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t cho c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c.<\/li>\n<li>Lu\u00f4n s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng n\u00e9t li\u1ec1n cho c\u00e1c m\u1ed1i quan h\u1ec7 li\u00ean k\u1ebft.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o c\u00e1c \u0111\u1ea7u m\u0169i t\u00ean nh\u1ea5t qu\u00e1n (m\u0169i t\u00ean h\u1edf cho ph\u1ee5 thu\u1ed9c, m\u0169i t\u00ean \u0111\u1ea7y cho li\u00ean k\u1ebft).<\/li>\n<\/ul>\n<h3>3. B\u1ecf qua t\u00ednh h\u01b0\u1edbng<\/h3>\n<p>C\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c mang t\u00ednh h\u01b0\u1edbng. M\u1ed9t g\u00f3i ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3i kh\u00e1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<ul>\n<li>Ki\u1ec3m tra xem m\u0169i t\u00ean c\u00f3 ch\u1ec9 t\u1eeb kh\u00e1ch h\u00e0ng \u0111\u1ebfn nh\u00e0 cung c\u1ea5p hay kh\u00f4ng.<\/li>\n<li>\u0110\u1ea3o ng\u01b0\u1ee3c m\u0169i t\u00ean s\u1ebd thay \u0111\u1ed5i ho\u00e0n to\u00e0n \u00fd ngh\u0129a.<\/li>\n<li>G\u1eafn nh\u00e3n r\u00f5 r\u00e0ng cho c\u00e1c m\u1ed1i quan h\u1ec7 hai chi\u1ec1u n\u1ebfu ch\u00fang t\u1ed3n t\u1ea1i.<\/li>\n<\/ul>\n<h3>4. C\u00e1c ph\u1ea7n t\u1eed tr\u00f4i n\u1ed5i<\/h3>\n<p>C\u00e1c ph\u1ea7n t\u1eed kh\u00f4ng \u0111\u01b0\u1ee3c tr\u00f4i n\u1ed5i m\u00e0 kh\u00f4ng c\u00f3 ng\u1eef c\u1ea3nh. M\u1ed7i ph\u1ea7n t\u1eed ph\u1ea3i thu\u1ed9c v\u1ec1 m\u1ed9t g\u00f3i ho\u1eb7c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng con.<\/p>\n<ul>\n<li>\u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp \u0111\u1ec1u \u0111\u01b0\u1ee3c g\u00e1n v\u00e0o m\u1ed9t g\u00f3i.<\/li>\n<li>Gom c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan l\u1ea1i v\u1edbi nhau.<\/li>\n<li>S\u1eed d\u1ee5ng g\u00f3i \u0111\u1ec3 t\u1ed5 ch\u1ee9c, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u1ec3 ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n.<\/li>\n<\/ul>\n<h2>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \ud83d\udd52<\/h2>\n<p>Kh\u00f4ng ph\u1ea3i t\u00ecnh hu\u1ed1ng n\u00e0o c\u0169ng c\u1ea7n s\u01a1 \u0111\u1ed3 g\u00f3i. H\u00e3y s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c d\u1ef1a tr\u00ean giai \u0111o\u1ea1n v\u00e0 nhu c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<h3>Giai \u0111o\u1ea1n thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng<\/h3>\n<p>\u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh. Khi thi\u1ebft k\u1ebf ki\u1ebfn tr\u00fac, s\u01a1 \u0111\u1ed3 g\u00f3i gi\u00fap c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u c\u1ea5u tr\u00fac module tr\u01b0\u1edbc khi vi\u1ebft m\u00e3.<\/p>\n<h3>T\u00e0i li\u1ec7u<\/h3>\n<p>Ch\u00fang \u0111\u00f3ng vai tr\u00f2 l\u00e0 t\u00e0i li\u1ec7u tuy\u1ec7t v\u1eddi cho c\u00e1c th\u00e0nh vi\u00ean m\u1edbi. M\u1ed9t c\u1ea5u tr\u00fac g\u00f3i r\u00f5 r\u00e0ng gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n t\u00ecm th\u1ea5y n\u01a1i c\u1ee5 th\u1ec3 ch\u1ee9c n\u0103ng \u0111ang n\u1eb1m.<\/p>\n<h3>T\u00e1i c\u1ea5u tr\u00fac<\/h3>\n<p>Khi d\u1ecdn d\u1eb9p m\u00e3 ngu\u1ed3n c\u0169, s\u01a1 \u0111\u1ed3 g\u00f3i gi\u00fap h\u00ecnh dung tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i v\u00e0 l\u00ean k\u1ebf ho\u1ea1ch t\u00e1i c\u1ea5u tr\u00fac.<\/p>\n<h3>L\u00ean k\u1ebf ho\u1ea1ch t\u00edch h\u1ee3p<\/h3>\n<p>Khi t\u00edch h\u1ee3p c\u00e1c th\u01b0 vi\u1ec7n ho\u1eb7c d\u1ecbch v\u1ee5 b\u00ean th\u1ee9 ba, s\u01a1 \u0111\u1ed3 g\u00f3i cho th\u1ea5y n\u01a1i c\u00e1c ph\u1ee5 thu\u1ed9c b\u00ean ngo\u00e0i \u0111i v\u00e0o h\u1ec7 th\u1ed1ng.<\/p>\n<h2>T\u00edch h\u1ee3p v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c \ud83d\udd17<\/h2>\n<p>S\u01a1 \u0111\u1ed3 g\u00f3i kh\u00f4ng t\u1ed3n t\u1ea1i m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 UML kh\u00e1c \u0111\u1ec3 cung c\u1ea5p b\u1ee9c tranh to\u00e0n di\u1ec7n v\u1ec1 h\u1ec7 th\u1ed1ng.<\/p>\n<h3>S\u01a1 \u0111\u1ed3 l\u1edbp<\/h3>\n<p>S\u01a1 \u0111\u1ed3 g\u00f3i x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi, trong khi s\u01a1 \u0111\u1ed3 l\u1edbp x\u00e1c \u0111\u1ecbnh n\u1ed9i dung b\u00ean trong nh\u1eefng ranh gi\u1edbi \u0111\u00f3. S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u1ec3 t\u00ecm s\u01a1 \u0111\u1ed3 l\u1edbp li\u00ean quan.<\/p>\n<h3>S\u01a1 \u0111\u1ed3 th\u00e0nh ph\u1ea7n<\/h3>\n<p>S\u01a1 \u0111\u1ed3 th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng t\u1eadp trung v\u00e0o c\u00e1c \u0111\u01a1n v\u1ecb th\u1ef1c thi. S\u01a1 \u0111\u1ed3 g\u00f3i mang t\u00ednh tr\u1eebu t\u01b0\u1ee3ng h\u01a1n. S\u1eed d\u1ee5ng g\u00f3i \u0111\u1ec3 t\u1ed5 ch\u1ee9c logic v\u00e0 th\u00e0nh ph\u1ea7n \u0111\u1ec3 tri\u1ec3n khai v\u1eadt l\u00fd.<\/p>\n<h3>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h3>\n<p>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 th\u1ec3 hi\u1ec7n c\u00e1c t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian. S\u01a1 \u0111\u1ed3 g\u00f3i cung c\u1ea5p b\u1ed1i c\u1ea3nh t\u0129nh cho c\u00e1c t\u01b0\u01a1ng t\u00e1c n\u00e0y. Bi\u1ebft \u0111\u01b0\u1ee3c g\u00f3i n\u00e0o m\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng thu\u1ed9c v\u1ec1 s\u1ebd gi\u00fap truy v\u1ebft ngu\u1ed3n g\u1ed1c c\u1ee7a n\u00f3.<\/p>\n<h2>B\u1ea3o tr\u00ec v\u00e0 ph\u00e1t tri\u1ec3n \ud83d\udd04<\/h2>\n<p>Ph\u1ea7n m\u1ec1m lu\u00f4n thay \u0111\u1ed5i. S\u01a1 \u0111\u1ed3 g\u00f3i l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng. N\u00f3 ph\u1ea3i thay \u0111\u1ed5i c\u00f9ng v\u1edbi m\u00e3 ngu\u1ed3n.<\/p>\n<h3>Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n<\/h3>\n<p>L\u01b0u tr\u1eef c\u00e1c t\u1ec7p s\u01a1 \u0111\u1ed3 c\u00f9ng v\u1edbi m\u00e3 ngu\u1ed3n trong h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thay \u0111\u1ed5i v\u1ec1 ki\u1ebfn tr\u00fac \u0111\u01b0\u1ee3c theo d\u00f5i.<\/p>\n<ul>\n<li>G\u1eedi thay \u0111\u1ed5i khi th\u1ef1c hi\u1ec7n t\u00e1i c\u1ea5u tr\u00fac.<\/li>\n<li>Ghi ch\u00fa l\u00fd do thay \u0111\u1ed5i c\u1ea5u tr\u00fac trong th\u00f4ng b\u00e1o g\u1eedi thay \u0111\u1ed5i.<\/li>\n<li>Xem x\u00e9t s\u01a1 \u0111\u1ed3 trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra m\u00e3 ngu\u1ed3n.<\/li>\n<\/ul>\n<h3>T\u1ef1 \u0111\u1ed9ng h\u00f3a<\/h3>\n<p>M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a c\u00f3 th\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 t\u1eeb m\u00e3 ngu\u1ed3n. M\u1eb7c d\u00f9 v\u1ebd th\u1ee7 c\u00f4ng mang l\u1ea1i ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n, nh\u01b0ng vi\u1ec7c t\u1ea1o t\u1ef1 \u0111\u1ed9ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt ng\u01b0\u1ee3c.<\/li>\n<li>X\u00e1c minh c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o ra so v\u1edbi m\u00e3 th\u1ef1c t\u1ebf.<\/li>\n<li>Kh\u00f4ng n\u00ean ch\u1ec9 d\u1ef1a v\u00e0o t\u1ef1 \u0111\u1ed9ng h\u00f3a cho c\u00e1c quy\u1ebft \u0111\u1ecbnh ki\u1ebfn tr\u00fac.<\/li>\n<\/ul>\n<h2>T\u00f3m t\u1eaft nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n l\u01b0u \u00fd \ud83d\udccc<\/h2>\n<ul>\n<li><strong>T\u1ed5 ch\u1ee9c:<\/strong>C\u00e1c g\u00f3i nh\u00f3m c\u00e1c th\u00e0nh ph\u1ea7n li\u00ean quan \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/li>\n<li><strong>Ph\u1ee5 thu\u1ed9c:<\/strong>S\u1eed d\u1ee5ng c\u00e1c m\u0169i t\u00ean g\u1ea1ch \u0111\u1ec3 th\u1ec3 hi\u1ec7n c\u00e1ch c\u00e1c g\u00f3i ph\u1ee5 thu\u1ed9c v\u00e0o nhau.<\/li>\n<li><strong>R\u00f5 r\u00e0ng:<\/strong>Gi\u1eef s\u01a1 \u0111\u1ed3 \u1edf c\u1ea5p \u0111\u1ed9 cao; tr\u00e1nh chi ti\u1ebft qu\u00e1 m\u1ee9c.<\/li>\n<li><strong>T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong>Tu\u00e2n theo quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean v\u00e0 c\u00e1c quy t\u1eafc k\u00fd hi\u1ec7u chu\u1ea9n.<\/li>\n<li><strong>B\u1ea3o tr\u00ec:<\/strong>C\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 khi h\u1ec7 th\u1ed1ng thay \u0111\u1ed5i.<\/li>\n<\/ul>\n<p>Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 g\u00f3i UML l\u00e0 k\u1ef9 n\u0103ng n\u1ec1n t\u1ea3ng cho b\u1ea5t k\u1ef3 ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea7n m\u1ec1m n\u00e0o. N\u00f3 gi\u00fap n\u1ed1i li\u1ec1n kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 tri\u1ec3n khai c\u1ee5 th\u1ec3. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c b\u01b0\u1edbc v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t \u0111\u01b0\u1ee3c n\u00eau \u1edf tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 r\u00f5 r\u00e0ng, hi\u1ec7u qu\u1ea3, gi\u00fap n\u00e2ng cao s\u1ef1 hi\u1ec3u bi\u1ebft v\u00e0 giao ti\u1ebfp trong \u0111\u1ed9i nh\u00f3m c\u1ee7a m\u00ecnh. B\u1eaft \u0111\u1ea7u v\u1edbi c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n, tinh ch\u1ec9nh c\u00e1c m\u1ed1i quan h\u1ec7 c\u1ee7a b\u1ea1n, v\u00e0 \u0111\u1ec3 s\u01a1 \u0111\u1ed3 d\u1eabn d\u1eaft qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m ph\u1ee5 thu\u1ed9c v\u00e0o giao ti\u1ebfp r\u00f5 r\u00e0ng. Khi c\u00e1c h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p, vi\u1ec7c tr\u1ef1c quan h\u00f3a t\u1ed5 ch\u1ee9c c\u1ea5p cao c\u1ee7a m\u00e3 ngu\u1ed3n&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1849,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"B\u1eaft \u0111\u1ea7u nhanh: V\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i UML \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch v\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i UML t\u1eebng b\u01b0\u1edbc. Hi\u1ec3u c\u00e1c k\u00fd hi\u1ec7u, m\u1ed1i ph\u1ee5 thu\u1ed9c v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t cho m\u00f4 h\u00ecnh h\u00f3a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[79],"tags":[82,93],"class_list":["post-1848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-package-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>B\u1eaft \u0111\u1ea7u nhanh: V\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i UML \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch v\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i UML t\u1eebng b\u01b0\u1edbc. 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