{"id":135,"date":"2026-04-01T11:10:00","date_gmt":"2026-04-01T11:10:00","guid":{"rendered":"https:\/\/www.go-notes.com\/vn\/uml-class-diagram-checklist-guide\/"},"modified":"2026-04-01T11:10:00","modified_gmt":"2026-04-01T11:10:00","slug":"uml-class-diagram-checklist-guide","status":"publish","type":"post","link":"https:\/\/www.go-notes.com\/vn\/uml-class-diagram-checklist-guide\/","title":{"rendered":"B\u1ea3ng ki\u1ec3m s\u01a1 \u0111\u1ed3 l\u1edbp UML: \u0110\u1ea3m b\u1ea3o b\u1ea1n kh\u00f4ng bao gi\u1edd b\u1ecf s\u00f3t chi ti\u1ebft n\u00e0o"},"content":{"rendered":"<p>Vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m m\u1ea1nh m\u1ebd ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o vi\u1ec7c giao ti\u1ebfp r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 c\u00e1c b\u00ean li\u00ean quan. Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML) cung c\u1ea5p m\u1ed9t c\u00e1ch chu\u1ea9n h\u00f3a \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u1ea5u tr\u00fac v\u00e0 h\u00e0nh vi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. Trong s\u1ed1 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 kh\u00e1c nhau, s\u01a1 \u0111\u1ed3 l\u1edbp UML n\u1ed5i b\u1eadt l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf cho m\u00e3 ngu\u1ed3n, m\u00f4 t\u1ea3 chi ti\u1ebft c\u00e1c l\u1edbp, thu\u1ed9c t\u00ednh, thao t\u00e1c v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 k\u1ebft n\u1ed1i ch\u00fang l\u1ea1i v\u1edbi nhau. Kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c, r\u1ee7i ro v\u1ec1 c\u00e1c khi\u1ebfm khuy\u1ebft ki\u1ebfn tr\u00fac s\u1ebd gia t\u0103ng \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t b\u1ea3ng ki\u1ec3m to\u00e0n di\u1ec7n v\u00e0 khung l\u00e0m vi\u1ec7c \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 l\u1edbp UML ch\u00ednh x\u00e1c, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 tu\u00e2n th\u1ee7 chu\u1ea9n m\u1ef1c. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c b\u01b0\u1edbc c\u00f3 c\u1ea5u tr\u00fac n\u00e0y, b\u1ea1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea5u tr\u00fac t\u0129nh c\u1ee7a ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ghi ch\u00e9p \u0111\u00fang \u0111\u1eafn, gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3 v\u00e0 h\u1ed7 tr\u1ee3 quy tr\u00ecnh ph\u00e1t tri\u1ec3n tr\u01a1n tru h\u01a1n.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn sketch infographic of UML Class Diagram checklist showing core components, relationship types, multiplicity notations, naming conventions, validation checklist, and best practices for object-oriented software design documentation\" decoding=\"async\" src=\"https:\/\/www.go-notes.com\/wp-content\/uploads\/2026\/04\/uml-class-diagram-checklist-infographic-sketch.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83c\udfd7\ufe0f C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3 l\u1edbp<\/h2>\n<p>Tr\u01b0\u1edbc khi \u0111i s\u00e2u v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u r\u00f5 c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng c\u01a1 b\u1ea3n. S\u01a1 \u0111\u1ed3 l\u1edbp bao g\u1ed3m c\u00e1c l\u1edbp, giao di\u1ec7n v\u00e0 c\u00e1c k\u1ebft n\u1ed1i x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. M\u1ed7i l\u1edbp \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kh\u00e1i ni\u1ec7m, th\u1ef1c th\u1ec3 ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng trong l\u0129nh v\u1ef1c m\u00e0 b\u1ea1n \u0111ang m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n<h3>\ud83d\udd39 C\u1ea5u tr\u00fac l\u1edbp<\/h3>\n<p>M\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt l\u1edbp ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c chia th\u00e0nh ba ng\u0103n. M\u1ed7i ng\u0103n c\u00f3 m\u1ed9t m\u1ee5c \u0111\u00edch c\u1ee5 th\u1ec3 v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1n th\u00f4ng tin theo c\u00e1c quy \u01b0\u1edbc nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<ul>\n<li><strong>Ng\u0103n tr\u00ean (T\u00ean):<\/strong> Ph\u1ea7n n\u00e0y hi\u1ec3n th\u1ecb t\u00ean c\u1ee7a l\u1edbp. T\u00ean l\u1edbp n\u00ean l\u00e0 danh t\u1eeb v\u00e0 th\u01b0\u1eddng tu\u00e2n theo quy \u01b0\u1edbc PascalCase ho\u1eb7c TitleCase. V\u00ed d\u1ee5, <em>Kh\u00e1chH\u00e0ng\u0110\u01a1nH\u00e0ng<\/em> ho\u1eb7c <em>B\u1ed9X\u1eedL\u00fdThanhTo\u00e1n<\/em>.<\/li>\n<li><strong>Ng\u0103n gi\u1eefa (Thu\u1ed9c t\u00ednh):<\/strong> Ph\u1ea7n n\u00e0y li\u1ec7t k\u00ea c\u00e1c thu\u1ed9c t\u00ednh ho\u1eb7c bi\u1ebfn tr\u1ea1ng th\u00e1i c\u1ee7a l\u1edbp. M\u1ed7i thu\u1ed9c t\u00ednh x\u00e1c \u0111\u1ecbnh m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u1edfi m\u1ed9t th\u1ec3 hi\u1ec7n c\u1ee7a l\u1edbp. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh ki\u1ec3u d\u1eef li\u1ec7u v\u00e0 b\u1ed9 ph\u1eadn truy c\u1eadp \u1edf \u0111\u00e2y l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n<li><strong>Ng\u0103n d\u01b0\u1edbi (Thao t\u00e1c):<\/strong> Ph\u1ea7n n\u00e0y chi ti\u1ebft c\u00e1c ph\u01b0\u01a1ng th\u1ee9c ho\u1eb7c h\u00e0nh vi c\u00f3 s\u1eb5n \u0111\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi l\u1edbp. C\u00e1c thao t\u00e1c x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec l\u1edbp c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n. Gi\u1ed1ng nh\u01b0 thu\u1ed9c t\u00ednh, c\u00e1c thao t\u00e1c c\u0169ng y\u00eau c\u1ea7u b\u1ed9 ph\u1eadn truy c\u1eadp v\u00e0 ki\u1ec3u tr\u1ea3 v\u1ec1.<\/li>\n<\/ul>\n<p>N\u1ebfu m\u1ed9t l\u1edbp l\u00e0 tr\u1eebu t\u01b0\u1ee3ng, n\u00f3 n\u00ean \u0111\u01b0\u1ee3c in nghi\u00eang. N\u1ebfu n\u00f3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t giao di\u1ec7n, n\u00f3 n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng k\u00fd hi\u1ec7u \u0111\u1eb7c bi\u1ec7t &lt;&lt;interface&gt;&gt; ho\u1eb7c ti\u1ec1n t\u1ed1 ch\u1eef <em>I<\/em> tr\u01b0\u1edbc t\u00f9y theo chu\u1ea9n k\u00fd hi\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<h3>\ud83d\udd39 Thu\u1ed9c t\u00ednh v\u00e0 ki\u1ec3u d\u1eef li\u1ec7u<\/h3>\n<p>C\u00e1c thu\u1ed9c t\u00ednh l\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u1edfi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Khi ghi ch\u00e9p c\u00e1c thu\u1ed9c t\u00ednh n\u00e0y, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng. M\u1ed7i thu\u1ed9c t\u00ednh ph\u1ea3i c\u00f3 ki\u1ec3u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. Tr\u00e1nh d\u00f9ng c\u00e1c thu\u1eadt ng\u1eef m\u01a1 h\u1ed3 nh\u01b0 <em>D\u1eefLi\u1ec7u<\/em> ho\u1eb7c <em>Th\u00f4ngTin<\/em>. Thay v\u00e0o \u0111\u00f3, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c ki\u1ec3u ch\u00ednh x\u00e1c nh\u01b0 <em>Nguy\u00ean<\/em>, <em>Chu\u1ed7i<\/em>, <em>Boolean<\/em>, ho\u1eb7c c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng mi\u1ec1n c\u1ee5 th\u1ec3.<\/p>\n<p>C\u00e1c b\u1ed9 ch\u1ecdn t\u00ednh kh\u1ea3 d\u1ee5ng r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c quy t\u1eafc \u0111\u00f3ng g\u00f3i. Ch\u00fang quy \u0111\u1ecbnh ph\u1ea7n n\u00e0o trong h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 truy c\u1eadp thu\u1ed9c t\u00ednh.<\/p>\n<ul>\n<li><strong>C\u00f4ng khai (+):<\/strong>Truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb b\u1ea5t k\u1ef3 l\u1edbp n\u00e0o. S\u1eed d\u1ee5ng h\u1ea1n ch\u1ebf \u0111\u1ec3 duy tr\u00ec t\u00ednh \u0111\u00f3ng g\u00f3i.<\/li>\n<li><strong>Ri\u00eang t\u01b0 (-):<\/strong>Ch\u1ec9 truy c\u1eadp \u0111\u01b0\u1ee3c trong ch\u00ednh l\u1edbp \u0111\u00f3. \u0110\u00e2y l\u00e0 m\u1eb7c \u0111\u1ecbnh cho ph\u1ea7n l\u1edbn d\u1eef li\u1ec7u n\u1ed9i b\u1ed9.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 (#):<\/strong>Truy c\u1eadp \u0111\u01b0\u1ee3c trong l\u1edbp v\u00e0 c\u00e1c l\u1edbp con c\u1ee7a n\u00f3. H\u1eefu \u00edch cho c\u00e1c c\u1ea5u tr\u00fac k\u1ebf th\u1eeba.<\/li>\n<li><strong>G\u00f3i (\/):<\/strong>Truy c\u1eadp \u0111\u01b0\u1ee3c trong c\u00f9ng m\u1ed9t g\u00f3i ho\u1eb7c kh\u00f4ng gian t\u00ean.<\/li>\n<\/ul>\n<h2>\ud83d\udd17 Qu\u1ea3n l\u00fd c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 li\u00ean k\u1ebft<\/h2>\n<p>C\u00e1c m\u1ed1i quan h\u1ec7 x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c l\u1edbp t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. Vi\u1ec7c hi\u1ec3u nh\u1ea7m c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn d\u1eabn \u0111\u1ebfn l\u1ed7i thi\u1ebft k\u1ebf. C\u00f3 nhi\u1ec1u lo\u1ea1i li\u00ean k\u1ebft, m\u1ed7i lo\u1ea1i mang m\u1ed9t \u00fd ngh\u0129a ng\u1eef ngh\u0129a ri\u00eang bi\u1ec7t.<\/p>\n<h3>\ud83d\udd39 Li\u00ean k\u1ebft<\/h3>\n<p>M\u1ed9t li\u00ean k\u1ebft \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u1ed1i li\u00ean k\u1ebft c\u1ea5u tr\u00fac gi\u1eefa hai l\u1edbp. N\u00f3 cho th\u1ea5y c\u00e1c th\u1ec3 hi\u1ec7n c\u1ee7a m\u1ed9t l\u1edbp c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c th\u1ec3 hi\u1ec7n c\u1ee7a l\u1edbp kh\u00e1c. C\u00e1c li\u00ean k\u1ebft th\u01b0\u1eddng \u0111\u01b0\u1ee3c v\u1ebd b\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng li\u1ec1n.<\/p>\n<ul>\n<li><strong>H\u01b0\u1edbng \u0111i:<\/strong>S\u1eed d\u1ee5ng \u0111\u1ea7u m\u0169i t\u00ean \u0111\u1ec3 th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u01b0\u1edbng. M\u1ed9t m\u0169i t\u00ean t\u1eeb L\u1edbp A sang L\u1edbp B ng\u1ee5 \u00fd r\u1eb1ng A bi\u1ebft c\u00e1ch t\u00ecm th\u1ea5y B, nh\u01b0ng B c\u00f3 th\u1ec3 kh\u00f4ng bi\u1ebft v\u1ec1 A.<\/li>\n<li><strong>\u0110a d\u1ea1ng:<\/strong> X\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng th\u1ec3 hi\u1ec7n tham gia. C\u00e1c k\u00fd hi\u1ec7u ph\u1ed5 bi\u1ebfn bao g\u1ed3m <em>1<\/em>, <em>0..1<\/em>, <em>1..*<\/em>, v\u00e0 <em>*<\/em>. \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c r\u00e0ng bu\u1ed9c nh\u01b0 &#8216;m\u1ed9t kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 \u0111\u1eb7t nhi\u1ec1u \u0111\u01a1n h\u00e0ng&#8217; ho\u1eb7c &#8216;m\u1ed9t \u0111\u01a1n h\u00e0ng thu\u1ed9c v\u1ec1 \u0111\u00fang m\u1ed9t kh\u00e1ch h\u00e0ng&#8217;.<\/li>\n<\/ul>\n<h3>\ud83d\udd39 T\u1ed5ng qu\u00e1t h\u00f3a (K\u1ebf th\u1eeba)<\/h3>\n<p>T\u1ed5ng qu\u00e1t h\u00f3a \u0111\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 k\u1ebf th\u1eeba. N\u00f3 cho th\u1ea5y m\u1ed9t l\u1edbp l\u00e0 phi\u00ean b\u1ea3n chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a m\u1ed9t l\u1edbp kh\u00e1c. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean tam gi\u00e1c r\u1ed7ng h\u01b0\u1edbng v\u1ec1 l\u1edbp cha.<\/p>\n<ul>\n<li><strong>M\u1ed1i quan h\u1ec7 L\u00e0-M\u1ed9t:<\/strong> A <em>Ph\u01b0\u01a1ng ti\u1ec7n<\/em> t\u1ed5ng qu\u00e1t h\u00f3a m\u1ed9t <em>Xe h\u01a1i<\/em>. M\u1ed9t <em>Xe h\u01a1i<\/em> l\u00e0 m\u1ed9t <em>Ph\u01b0\u01a1ng ti\u1ec7n<\/em>.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng:<\/strong> C\u00e1c l\u1edbp con k\u1ebf th\u1eeba thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c t\u1eeb l\u1edbp cha, th\u00fac \u0111\u1ea9y vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng m\u00e3 ngu\u1ed3n.<\/li>\n<li><strong>\u0110a h\u00ecnh:<\/strong> Cho ph\u00e9p c\u00e1c l\u1edbp kh\u00e1c nhau \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u00f4ng qua giao di\u1ec7n c\u1ee7a l\u1edbp cha chung.<\/li>\n<\/ul>\n<h3>\ud83d\udd39 K\u1ebft h\u1ee3p v\u00e0 T\u00edch h\u1ee3p<\/h3>\n<p>Hai lo\u1ea1i quan h\u1ec7 n\u00e0y m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 s\u1edf h\u1eefu v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o v\u00f2ng \u0111\u1eddi, th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn b\u1edfi c\u00e1c nh\u00e0 th\u1ef1c h\u00e0nh.<\/p>\n<ul>\n<li><strong>K\u1ebft h\u1ee3p (H\u00ecnh kim c\u01b0\u01a1ng \u0111\u1ea7y):<\/strong> \u0110\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 s\u1edf h\u1eefu m\u1ea1nh. B\u1ed9 ph\u1eadn kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u1edbi to\u00e0n th\u1ec3. N\u1ebfu to\u00e0n th\u1ec3 b\u1ecb h\u1ee7y, b\u1ed9 ph\u1eadn c\u0169ng b\u1ecb h\u1ee7y. V\u00ed d\u1ee5: <em>Ng\u00f4i nh\u00e0<\/em> \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb <em>Ph\u00f2ng<\/em>.<\/li>\n<li><strong>T\u00edch h\u1ee3p (H\u00ecnh kim c\u01b0\u01a1ng r\u1ed7ng):<\/strong> \u0110\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 s\u1edf h\u1eefu y\u1ebfu. B\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u1edbi to\u00e0n th\u1ec3. V\u00ed d\u1ee5: <em>Ph\u00f2ng ban<\/em> c\u00f3 <em>Nh\u00e2n vi\u00ean<\/em>. N\u1ebfu ph\u00f2ng ban \u0111\u00f3ng c\u1eeda, nh\u00e2n vi\u00ean v\u1eabn c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong c\u00f4ng ty.<\/li>\n<\/ul>\n<h3>\ud83d\udd39 Ph\u1ee5 thu\u1ed9c<\/h3>\n<p>Ph\u1ee5 thu\u1ed9c ch\u1ec9 ra m\u1ed1i quan h\u1ec7 s\u1eed d\u1ee5ng. M\u1ed9t l\u1edbp ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp kh\u00e1c \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3, nh\u01b0ng kh\u00f4ng s\u1edf h\u1eefu n\u00f3. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean h\u1edf. \u0110i\u1ec1u n\u00e0y ng\u1ee5 \u00fd r\u1eb1ng m\u1ed9t thay \u0111\u1ed5i trong l\u1edbp cung c\u1ea5p c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp kh\u00e1ch h\u00e0ng.<\/p>\n<h2>\ud83d\udcca \u0110a d\u1ea1ng v\u00e0 B\u1ed9i s\u1ed1<\/h2>\n<p>T\u00ednh \u0111a d\u1ea1ng x\u00e1c \u0111\u1ecbnh c\u00e1c r\u00e0ng bu\u1ed9c \u0111\u1ecbnh l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t m\u1ed1i quan h\u1ec7. Kh\u00f4ng \u0111\u1ee7 ch\u1ec9 \u0111\u01a1n gi\u1ea3n v\u1ebd m\u1ed9t \u0111\u01b0\u1eddng; b\u1ea1n ph\u1ea3i x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00f3 bao nhi\u00eau \u0111\u1ed1i t\u01b0\u1ee3ng tham gia v\u00e0o li\u00ean k\u1ebft \u0111\u00f3.<\/p>\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>K\u00fd hi\u1ec7u<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<th>B\u1ed1i c\u1ea3nh v\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>1<\/strong><\/td>\n<td>Ch\u00ednh x\u00e1c m\u1ed9t<\/td>\n<td>M\u1ed9t ng\u01b0\u1eddi c\u00f3 ch\u00ednh x\u00e1c m\u1ed9t s\u1ed1 b\u1ea3o hi\u1ec3m x\u00e3 h\u1ed9i.<\/td>\n<\/tr>\n<tr>\n<td><strong>0..1<\/strong><\/td>\n<td>Kh\u00f4ng ho\u1eb7c m\u1ed9t<\/td>\n<td>Gi\u1ea5y ph\u00e9p l\u00e1i xe c\u00f3 th\u1ec3 c\u00f3 t\u00ean \u0111\u1ec7m (t\u00f9y ch\u1ecdn).<\/td>\n<\/tr>\n<tr>\n<td><strong>1..*<\/strong><\/td>\n<td>M\u1ed9t ho\u1eb7c nhi\u1ec1u<\/td>\n<td>M\u1ed9t \u0111\u1ed9i ph\u1ea3i c\u00f3 \u00edt nh\u1ea5t m\u1ed9t th\u00e0nh vi\u00ean.<\/td>\n<\/tr>\n<tr>\n<td><strong>*<\/strong><\/td>\n<td>Kh\u00f4ng ho\u1eb7c nhi\u1ec1u<\/td>\n<td>M\u1ed9t k\u1ec7 c\u00f3 th\u1ec3 ch\u1ee9a kh\u00f4ng ho\u1eb7c nhi\u1ec1u quy\u1ec3n s\u00e1ch.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ea3m b\u1ea3o t\u00ednh \u0111a d\u1ea1ng \u0111\u00fang gi\u00fap ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i logic trong thi\u1ebft k\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 logic \u1ee9ng d\u1ee5ng. V\u00ed d\u1ee5, thi\u1ebft l\u1eadp m\u1ed1i quan h\u1ec7 th\u00e0nh &#8220;<em>0..1<\/em> khi n\u00f3 n\u00ean l\u00e0 &#8220;<em>1<\/em> c\u00f3 th\u1ec3 cho ph\u00e9p tham chi\u1ebfu null khi\u1ebfn \u1ee9ng d\u1ee5ng b\u1ecb s\u1eadp.<\/p>\n<h2>\ud83d\udcdd Quy \u01b0\u1edbc v\u00e0 ti\u00eau chu\u1ea9n \u0111\u1eb7t t\u00ean<\/h2>\n<p>T\u00ednh nh\u1ea5t qu\u00e1n trong \u0111\u1eb7t t\u00ean r\u1ea5t quan tr\u1ecdng cho kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u00e0 b\u1ea3o tr\u00ec. M\u1ed9t s\u01a1 \u0111\u1ed3 v\u1edbi c\u00e1c quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean kh\u00f4ng nh\u1ea5t qu\u00e1n s\u1ebd tr\u1edf th\u00e0nh ngu\u1ed3n g\u00e2y nh\u1ea7m l\u1eabn thay v\u00ec c\u00f4ng c\u1ee5 gi\u00fap l\u00e0m r\u00f5.<\/p>\n<h3>\ud83d\udd39 T\u00ean l\u1edbp<\/h3>\n<p>T\u00ean l\u1edbp n\u00ean l\u00e0 danh t\u1eeb mang \u00fd ngh\u0129a r\u00f5 r\u00e0ng. Tr\u00e1nh d\u00f9ng vi\u1ebft t\u1eaft tr\u1eeb khi ch\u00fang \u0111\u01b0\u1ee3c hi\u1ec3u ph\u1ed5 bi\u1ebfn trong l\u0129nh v\u1ef1c c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, d\u00f9ng &#8220;<em>Kh\u00e1ch h\u00e0ng<\/em> thay v\u00ec &#8220;<em>Kh\u00e1ch<\/em>. D\u00f9ng d\u1ea1ng s\u1ed1 \u00edt cho l\u1edbp (v\u00ed d\u1ee5, &#8220;<em>\u0110\u01a1n h\u00e0ng<\/em> thay v\u00ec <em>\u0110\u01a1n h\u00e0ng<\/em>).<\/p>\n<h3>\ud83d\udd39 T\u00ean thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c<\/h3>\n<p>S\u1eed d\u1ee5ng camelCase cho c\u00e1c thao t\u00e1c v\u00e0 thu\u1ed9c t\u00ednh \u0111\u1ec3 ph\u00e2n bi\u1ec7t ch\u00fang v\u1edbi t\u00ean l\u1edbp. B\u1eaft \u0111\u1ea7u b\u1eb1ng \u0111\u1ed9ng t\u1eeb cho c\u00e1c thao t\u00e1c (v\u00ed d\u1ee5: <em>tinhTong()<\/em>) v\u00e0 danh t\u1eeb cho thu\u1ed9c t\u00ednh (v\u00ed d\u1ee5: <em>tongSoTien<\/em>). S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh h\u1ecd \u0111ang xem d\u1eef li\u1ec7u hay h\u00e0nh vi.<\/p>\n<h3>\ud83d\udd39 K\u00fd hi\u1ec7u quy\u1ec1n truy c\u1eadp<\/h3>\n<p>Lu\u00f4n s\u1eed d\u1ee5ng c\u00e1c k\u00fd hi\u1ec7u chu\u1ea9n cho quy\u1ec1n truy c\u1eadp \u0111\u1ec3 duy tr\u00ec ti\u00eau chu\u1ea9n chuy\u00ean nghi\u1ec7p.<\/p>\n<ul>\n<li><strong>+<\/strong> cho C\u00f4ng khai<\/li>\n<li><strong>\u2013<\/strong> cho Ri\u00eang t\u01b0<\/li>\n<li><strong>#<\/strong> cho B\u1ea3o v\u1ec7<\/li>\n<li><strong>~<\/strong> cho G\u00f3i\/M\u1eb7c \u0111\u1ecbnh<\/li>\n<\/ul>\n<h2>\ud83d\udea8 Nh\u1eefng sai l\u1ea7m v\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn<\/h2>\n<p>Ngay c\u1ea3 nh\u1eefng nh\u00e0 thi\u1ebft k\u1ebf 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 s\u1ebd gi\u00fap ph\u00e1t hi\u1ec7n v\u1ea5n \u0111\u1ec1 s\u1edbm trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/p>\n<ul>\n<li><strong>Ph\u1ee5 thu\u1ed9c v\u00f2ng l\u1eb7p:<\/strong>Tr\u00e1nh t\u1ea1o c\u00e1c chu k\u1ef3 n\u01a1i L\u1edbp A ph\u1ee5 thu\u1ed9c v\u00e0o L\u1edbp B, m\u00e0 L\u1edbp B l\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o L\u1edbp A. \u0110i\u1ec1u n\u00e0y l\u00e0m ph\u1ee9c t\u1ea1p h\u00f3a qu\u00e1 tr\u00ecnh kh\u1edfi t\u1ea1o v\u00e0 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn v\u00f2ng l\u1eb7p v\u00f4 h\u1ea1n.<\/li>\n<li><strong>Thi\u1ebfu b\u1ed9i s\u1ed1:<\/strong>B\u1ecf tr\u1ed1ng b\u1ed9i s\u1ed1 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 m\u01a1 h\u1ed3. Lu\u00f4n x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng c\u00e1c r\u00e0ng bu\u1ed9c.<\/li>\n<li><strong>Qu\u00e1 m\u1ee9c thi\u1ebft k\u1ebf:<\/strong>Kh\u00f4ng n\u00ean bao g\u1ed3m m\u1ecdi m\u1ed1i quan h\u1ec7 c\u00f3 th\u1ec3. T\u1eadp trung v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7 c\u1ea7n thi\u1ebft cho ph\u1ea1m vi hi\u1ec7n t\u1ea1i. Vi\u1ec7c th\u00eam v\u00e0o s\u1ef1 ph\u1ee9c t\u1ea1p kh\u00f4ng c\u1ea7n thi\u1ebft s\u1ebd khi\u1ebfn s\u01a1 \u0111\u1ed3 kh\u00f3 \u0111\u1ecdc.<\/li>\n<li><strong>K\u00fd hi\u1ec7u kh\u00f4ng nh\u1ea5t qu\u00e1n:<\/strong>\u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00f9ng m\u1ed9t lo\u1ea1i m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c v\u1ebd theo c\u00f9ng m\u1ed9t c\u00e1ch tr\u00ean to\u00e0n b\u1ed9 s\u01a1 \u0111\u1ed3. Vi\u1ec7c tr\u1ed9n l\u1eabn c\u00e1c \u0111\u01b0\u1eddng li\u00ean k\u1ebft v\u1edbi c\u00e1c \u0111\u01b0\u1eddng ph\u1ee5 thu\u1ed9c cho c\u00f9ng m\u1ed9t li\u00ean k\u1ebft logic l\u00e0 g\u00e2y nh\u1ea7m l\u1eabn.<\/li>\n<li><strong>B\u1ecf qua giao di\u1ec7n:<\/strong>N\u1ebfu m\u1ed9t l\u1edbp tri\u1ec3n khai m\u1ed9t giao di\u1ec7n, m\u1ed1i quan h\u1ec7 n\u00e0y n\u00ean \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t c\u00f3 h\u00ecnh tam gi\u00e1c r\u1ed7ng. \u0110i\u1ec1u n\u00e0y l\u00e0m r\u00f5 h\u1ee3p \u0111\u1ed3ng m\u00e0 l\u1edbp ph\u1ea3i th\u1ef1c hi\u1ec7n.<\/li>\n<\/ul>\n<h2>\u2705 Danh s\u00e1ch ki\u1ec3m tra x\u00e1c th\u1ef1c<\/h2>\n<p>Tr\u01b0\u1edbc khi ho\u00e0n t\u1ea5t m\u1ed9t s\u01a1 \u0111\u1ed3, h\u00e3y \u0111i qua danh s\u00e1ch ki\u1ec3m tra n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c. Ph\u1ea7n n\u00e0y \u0111\u00f3ng vai tr\u00f2 nh\u01b0 ng\u01b0\u1eddi ki\u1ec3m so\u00e1t cu\u1ed1i c\u00f9ng cho t\u00e0i li\u1ec7u thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n.<\/p>\n<ul>\n<li><strong>\u0110\u1ea7y \u0111\u1ee7:<\/strong>T\u1ea5t c\u1ea3 c\u00e1c l\u1edbp c\u1ea7n thi\u1ebft t\u1eeb y\u00eau c\u1ea7u c\u00f3 \u0111\u01b0\u1ee3c bao g\u1ed3m kh\u00f4ng?<\/li>\n<li><strong>\u0110\u1ed9c nh\u1ea5t:<\/strong>T\u00ean l\u1edbp c\u00f3 duy nh\u1ea5t tr\u00ean to\u00e0n b\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00f4ng?<\/li>\n<li><strong>Quy\u1ec1n truy c\u1eadp:<\/strong>M\u1ed7i thu\u1ed9c t\u00ednh v\u00e0 thao t\u00e1c c\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng b\u1ed9 x\u00e1c \u0111\u1ecbnh quy\u1ec1n truy c\u1eadp kh\u00f4ng?<\/li>\n<li><strong>Lo\u1ea1i:<\/strong>C\u00e1c ki\u1ec3u d\u1eef li\u1ec7u c\u00f3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh cho t\u1ea5t c\u1ea3 c\u00e1c thu\u1ed9c t\u00ednh kh\u00f4ng?<\/li>\n<li><strong>M\u1ed1i quan h\u1ec7:<\/strong>T\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng li\u00ean k\u1ebft c\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n b\u1eb1ng t\u00ean ch\u00ednh x\u00e1c kh\u00f4ng?<\/li>\n<li><strong>\u0110a d\u1ea1ng:<\/strong>M\u1ed7i \u0111\u01b0\u1eddng m\u1ed1i quan h\u1ec7 c\u00f3 \u0111\u01b0\u1ee3c ch\u00fa th\u00edch b\u1eb1ng r\u00e0ng bu\u1ed9c \u0111a d\u1ea1ng kh\u00f4ng?<\/li>\n<li><strong>\u0110i\u1ec1u h\u01b0\u1edbng:<\/strong>C\u00e1c \u0111\u1ea7u m\u0169i t\u00ean c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u00fang v\u1ecb tr\u00ed \u0111\u1ec3 th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng \u0111i\u1ec1u h\u01b0\u1edbng kh\u00f4ng?<\/li>\n<li><strong>Stereotype:<\/strong>C\u00e1c l\u1edbp tr\u1eebu t\u01b0\u1ee3ng v\u00e0 giao di\u1ec7n c\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng kh\u00f4ng?<\/li>\n<li><strong>Nh\u1ea5t qu\u00e1n:<\/strong>Phong c\u00e1ch k\u00fd hi\u1ec7u c\u00f3 nh\u1ea5t qu\u00e1n tr\u00ean to\u00e0n b\u1ed9 s\u01a1 \u0111\u1ed3 kh\u00f4ng?<\/li>\n<li><strong>R\u00f5 r\u00e0ng:<\/strong>S\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng c\u1ea7n qu\u00e1 nhi\u1ec1u \u0111\u01b0\u1eddng c\u1eaft nhau kh\u00f4ng? (C\u00e2n nh\u1eafc s\u1eed d\u1ee5ng g\u00f3i ho\u1eb7c l\u1edbp).<\/li>\n<\/ul>\n<h2>\ud83d\udd04 B\u1ea3o tr\u00ec v\u00e0 ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n<\/h2>\n<p>Ph\u1ea7n m\u1ec1m kh\u00f4ng ph\u1ea3i l\u00e0 t\u0129nh. Y\u00eau c\u1ea7u thay \u0111\u1ed5i, v\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i ph\u00e1t tri\u1ec3n theo. S\u01a1 \u0111\u1ed3 l\u1edbp UML l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng \u0111\u1ed9ng v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u1edbi c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n.<\/p>\n<p>Khi m\u00e3 ngu\u1ed3n thay \u0111\u1ed5i, s\u01a1 \u0111\u1ed3 ph\u1ea3i ph\u1ea3n \u00e1nh nh\u1eefng thay \u0111\u1ed5i \u0111\u00f3. N\u1ebfu m\u1ed9t thu\u1ed9c t\u00ednh m\u1edbi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o m\u1ed9t l\u1edbp trong m\u00e3 ngu\u1ed3n, s\u01a1 \u0111\u1ed3 ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt cho ph\u00f9 h\u1ee3p. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu m\u1ed9t thay \u0111\u1ed5i thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean s\u01a1 \u0111\u1ed3, m\u00e3 ngu\u1ed3n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh t\u01b0\u01a1ng \u1ee9ng. Vi\u1ec7c \u0111\u1ed3ng b\u1ed9 n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u v\u1eabn l\u00e0 ngu\u1ed3n th\u00f4ng tin \u0111\u00e1ng tin c\u1eady.<\/p>\n<h3>\ud83d\udd39 Chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a<\/h3>\n<ul>\n<li><strong>K\u1ef9 thu\u1eadt ph\u00e1t tri\u1ec3n ti\u1ebfn:<\/strong>T\u1ea1o m\u00e3 ngu\u1ed3n t\u1eeb s\u01a1 \u0111\u1ed3. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh tri\u1ec3n khai.<\/li>\n<li><strong>K\u1ef9 thu\u1eadt ph\u00e1t tri\u1ec3n ng\u01b0\u1ee3c:<\/strong> Nh\u1eadp m\u00e3 ngu\u1ed3n hi\u1ec7n c\u00f3 \u0111\u1ec3 c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3. \u0110i\u1ec1u n\u00e0y h\u1eefu \u00edch cho vi\u1ec7c t\u00e0i li\u1ec7u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng c\u0169.<\/li>\n<li><strong>\u0110i\u1ec3m \u0111i v\u00e0 v\u1ec1:<\/strong>Duy tr\u00ec \u0111\u1ed3ng b\u1ed9 hai chi\u1ec1u, n\u01a1i c\u00e1c thay \u0111\u1ed5i trong m\u00e3 ngu\u1ed3n ho\u1eb7c s\u01a1 \u0111\u1ed3 s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n sang ph\u00eda c\u00f2n l\u1ea1i.<\/li>\n<\/ul>\n<h2>\ud83d\udccb T\u00f3m t\u1eaft c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/h2>\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp UML ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn chi ti\u1ebft v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd c\u00e1c h\u00ecnh h\u1ed9p v\u00e0 \u0111\u01b0\u1eddng n\u00e9t; m\u00e0 l\u00e0 m\u00f4 h\u00ecnh h\u00f3a ch\u00ednh x\u00e1c logic v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n<ul>\n<li><strong>B\u1eaft \u0111\u1ea7u t\u1eeb y\u00eau c\u1ea7u:<\/strong>\u0110\u1ea3m b\u1ea3o m\u1ed7i l\u1edbp \u0111\u1ec1u t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t y\u00eau c\u1ea7u ho\u1eb7c kh\u00e1i ni\u1ec7m mi\u1ec1n.<\/li>\n<li><strong>S\u1eed d\u1ee5ng k\u00fd hi\u1ec7u chu\u1ea9n:<\/strong>Tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh UML ch\u00ednh th\u1ee9c v\u1ec1 k\u00fd hi\u1ec7u v\u00e0 phong c\u00e1ch.<\/li>\n<li><strong>T\u1eadp trung v\u00e0o c\u00e1c m\u1ed1i quan h\u1ec7:<\/strong>Gi\u00e1 tr\u1ecb c\u1ee7a s\u01a1 \u0111\u1ed3 n\u1eb1m \u1edf c\u00e1ch c\u00e1c l\u1edbp k\u1ebft n\u1ed1i v\u1edbi nhau, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u1edf v\u1ebb ngo\u00e0i ri\u00eang l\u1ebb c\u1ee7a t\u1eebng l\u1edbp.<\/li>\n<li><strong>Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong>Tr\u00e1nh r\u1ed1i m\u1eaft. S\u1eed d\u1ee5ng g\u00f3i ho\u1eb7c h\u1ec7 th\u1ed1ng con \u0111\u1ec3 nh\u00f3m c\u00e1c l\u1edbp li\u00ean quan.<\/li>\n<li><strong>Xem x\u00e9t th\u01b0\u1eddng xuy\u00ean:<\/strong>L\u00ean l\u1ecbch ki\u1ec3m tra thi\u1ebft k\u1ebf \u0111\u1ec3 x\u00e1c minh s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p v\u1edbi ti\u1ebfn \u0111\u1ed9 ph\u00e1t tri\u1ec3n hi\u1ec7n t\u1ea1i.<\/li>\n<\/ul>\n<p>B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng nghi\u00eam ng\u1eb7t danh s\u00e1ch ki\u1ec3m tra n\u00e0y v\u00e0 duy tr\u00ec c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 k\u1ef7 lu\u1eadt trong t\u00e0i li\u1ec7u thi\u1ebft k\u1ebf, b\u1ea1n s\u1ebd t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho ph\u1ea7n m\u1ec1m d\u1ec5 hi\u1ec3u, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 m\u1edf r\u1ed9ng h\u01a1n. C\u00f4ng s\u1ee9c b\u1ecf ra \u0111\u1ec3 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 l\u1edbp ch\u00ednh x\u00e1c s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch trong su\u1ed1t to\u00e0n b\u1ed9 v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m m\u1ea1nh m\u1ebd ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o vi\u1ec7c giao ti\u1ebfp r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n, ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 c\u00e1c&hellip;<\/p>\n","protected":false},"author":1,"featured_media":136,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Danh s\u00e1ch ki\u1ec3m tra S\u01a1 \u0111\u1ed3 l\u1edbp UML: H\u01b0\u1edbng d\u1eabn thi\u1ebft y\u1ebfu cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf \ud83d\udccb","_yoast_wpseo_metadesc":"Danh s\u00e1ch ki\u1ec3m tra s\u01a1 \u0111\u1ed3 l\u1edbp UML to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. H\u1ecdc v\u1ec1 thu\u1ed9c t\u00ednh, m\u1ed1i quan h\u1ec7, b\u1ed9i s\u1ed1 v\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m.","inline_featured_image":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[4],"tags":[5,7],"class_list":["post-135","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-class-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Danh s\u00e1ch ki\u1ec3m tra S\u01a1 \u0111\u1ed3 l\u1edbp UML: H\u01b0\u1edbng d\u1eabn thi\u1ebft y\u1ebfu cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf \ud83d\udccb<\/title>\n<meta name=\"description\" content=\"Danh s\u00e1ch ki\u1ec3m tra s\u01a1 \u0111\u1ed3 l\u1edbp UML to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. H\u1ecdc v\u1ec1 thu\u1ed9c t\u00ednh, m\u1ed1i quan h\u1ec7, b\u1ed9i s\u1ed1 v\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong thi\u1ebft k\u1ebf ph\u1ea7n m\u1ec1m.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.go-notes.com\/vn\/uml-class-diagram-checklist-guide\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Danh s\u00e1ch ki\u1ec3m tra S\u01a1 \u0111\u1ed3 l\u1edbp UML: H\u01b0\u1edbng d\u1eabn thi\u1ebft y\u1ebfu cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf \ud83d\udccb\" \/>\n<meta property=\"og:description\" content=\"Danh s\u00e1ch ki\u1ec3m tra s\u01a1 \u0111\u1ed3 l\u1edbp UML to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. 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