{"id":10671,"date":"2025-01-10T16:21:34","date_gmt":"2025-01-10T08:21:34","guid":{"rendered":"https:\/\/www.cybermedian.com\/vn\/comprehensive-guide-to-employee-management-system-using-erd-as-a-case-study\/"},"modified":"2026-04-14T19:07:50","modified_gmt":"2026-04-14T11:07:50","slug":"comprehensive-guide-to-employee-management-system-using-erd-as-a-case-study","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/vn\/comprehensive-guide-to-employee-management-system-using-erd-as-a-case-study\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd Nh\u00e2n vi\u00ean s\u1eed d\u1ee5ng ERD nh\u01b0 m\u1ed9t v\u00ed d\u1ee5 nghi\u00ean c\u1ee9u"},"content":{"rendered":"<h4>Gi\u1edbi thi\u1ec7u<\/h4>\n<p>M\u1ed9t H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd Nh\u00e2n vi\u00ean (EMS) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng gi\u00fap c\u00e1c t\u1ed5 ch\u1ee9c qu\u1ea3n l\u00fd l\u1ef1c l\u01b0\u1ee3ng lao \u0111\u1ed9ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. H\u1ec7 th\u1ed1ng n\u00e0y h\u1ed7 tr\u1ee3 theo d\u00f5i th\u00f4ng tin chi ti\u1ebft v\u1ec1 nh\u00e2n vi\u00ean, th\u00f4ng tin ph\u00f2ng ban, ph\u00e2n c\u00f4ng d\u1ef1 \u00e1n v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t <a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-modeling\/what-is-entity-relationship-diagram\/\">S\u01a1 \u0111\u1ed3 Quan h\u1ec7 Th\u1ef1c th\u1ec3<\/a> (ERD) nh\u01b0 m\u1ed9t v\u00ed d\u1ee5 nghi\u00ean c\u1ee9u \u0111\u1ec3 minh h\u1ecda qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 tri\u1ec3n khai m\u1ed9t EMS.<\/p>\n<h4>M\u1ee5c \u0111\u00edch c\u1ee7a v\u00ed d\u1ee5 nghi\u00ean c\u1ee9u<\/h4>\n<p>M\u1ee5c \u0111\u00edch c\u1ee7a v\u00ed d\u1ee5 nghi\u00ean c\u1ee9u n\u00e0y l\u00e0 n\u00eau r\u00f5 c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng v\u00e0 phi ch\u1ee9c n\u0103ng c\u1ee7a H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd Nh\u00e2n vi\u00ean. N\u00f3 cung c\u1ea5p c\u00e1i nh\u00ecn chi ti\u1ebft v\u1ec1 s\u1ea3n ph\u1ea9m ph\u1ea7n m\u1ec1m, c\u00e1c th\u00f4ng s\u1ed1 v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf c\u1ea7n thi\u1ebft \u0111\u1ec3 tri\u1ec3n khai h\u1ec7 th\u1ed1ng. EMS \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c quy tr\u00ecnh nh\u00e2n s\u1ef1, c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 t\u1ed5 ch\u1ee9c.<\/p>\n<p><img alt=\"Entity Relationship Diagram Example: MIS\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/repository\/images\/5512a900-86be-4164-906e-ad4694466206\/entity-relationship-diagram-design\/entity-relationship-diagram-example-mis.png\"\/><\/p>\n<h4>C\u00e1c kh\u00e1i ni\u1ec7m v\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh<\/h4>\n<ol>\n<li><strong>C\u00e1c th\u1ef1c th\u1ec3<\/strong>:\n<ul>\n<li><strong>Nh\u00e2n vi\u00ean<\/strong>: \u0110\u1ea1i di\u1ec7n cho c\u00e1c nh\u00e2n vi\u00ean trong t\u1ed5 ch\u1ee9c.<\/li>\n<li><strong>Ph\u00f2ng ban<\/strong>: \u0110\u1ea1i di\u1ec7n cho c\u00e1c ph\u00f2ng ban kh\u00e1c nhau trong t\u1ed5 ch\u1ee9c.<\/li>\n<li><strong>Ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c<\/strong>: \u0110\u1ea1i di\u1ec7n cho nh\u1eefng ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c c\u1ee7a nh\u00e2n vi\u00ean.<\/li>\n<li><strong>D\u1ef1 \u00e1n<\/strong>: \u0110\u1ea1i di\u1ec7n cho c\u00e1c d\u1ef1 \u00e1n trong t\u1ed5 ch\u1ee9c.<\/li>\n<li><strong>D\u1ef1 \u00e1n_Nh\u00e2n vi\u00ean<\/strong>: \u0110\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c d\u1ef1 \u00e1n v\u00e0 nh\u00e2n vi\u00ean.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd_Ph\u00f2ng ban<\/strong>: \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c qu\u1ea3n l\u00fd ph\u00f2ng ban b\u1edfi nh\u00e2n vi\u00ean.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Thu\u1ed9c t\u00ednh<\/strong>:\n<ul>\n<li><strong>Nh\u00e2n vi\u00ean<\/strong>: MSSV (PK), S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, Ng\u01b0\u1eddi gi\u00e1m s\u00e1t, Ng\u00e0y sinh, Gi\u1edbi t\u00ednh, \u0110\u1ecba ch\u1ec9, L\u01b0\u01a1ng, H\u1ecd \u0111\u1ec7m, T\u00ean \u0111\u1ec7m, H\u1ecd.<\/li>\n<li><strong>Ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c<\/strong>: MSSV_Nh\u00e2n vi\u00ean (FK), T\u00ean, Gi\u1edbi t\u00ednh, Ng\u00e0y sinh, M\u1ed1i quan h\u1ec7.<\/li>\n<li><strong>Ph\u00f2ng ban<\/strong>: S\u1ed1 (PK), T\u00ean, \u0110\u1ecba \u0111i\u1ec3m, S\u1ed1 l\u01b0\u1ee3ng nh\u00e2n vi\u00ean.<\/li>\n<li><strong>D\u1ef1 \u00e1n<\/strong>: S\u1ed1 (PK), S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, T\u00ean, \u0110\u1ecba \u0111i\u1ec3m.<\/li>\n<li><strong>D\u1ef1 \u00e1n_Nh\u00e2n vi\u00ean<\/strong>: S\u1ed1 d\u1ef1 \u00e1n, SSN nh\u00e2n vi\u00ean, S\u1ed1 gi\u1edd.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ph\u00f2ng ban<\/strong>: S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, SSN nh\u00e2n vi\u00ean, Ng\u00e0y b\u1eaft \u0111\u1ea7u.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Quan h\u1ec7<\/strong>:\n<ul>\n<li><strong>M\u1ed9t-\u0111\u1ebfn-nhi\u1ec1u<\/strong>: V\u00ed d\u1ee5, m\u1ed9t ph\u00f2ng ban c\u00f3 nhi\u1ec1u nh\u00e2n vi\u00ean.<\/li>\n<li><strong>Nhi\u1ec1u-\u0111\u1ebfn-nhi\u1ec1u<\/strong>: V\u00ed d\u1ee5, nh\u00e2n vi\u00ean c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c tr\u00ean nhi\u1ec1u d\u1ef1 \u00e1n, v\u00e0 m\u1ed7i d\u1ef1 \u00e1n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u nh\u00e2n vi\u00ean.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>S\u01a1 \u0111\u1ed3 ERD cho H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean<\/h4>\n<p>S\u01a1 \u0111\u1ed3 ERD cho h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean tr\u1ef1c quan h\u00f3a c\u00e1c b\u1ea3ng c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang. C\u00e1c th\u1ef1c th\u1ec3 ch\u00ednh bao g\u1ed3m Nh\u00e2n vi\u00ean, Ph\u00f2ng ban, Ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c, D\u1ef1 \u00e1n, D\u1ef1 \u00e1n_Nh\u00e2n vi\u00ean v\u00e0 Qu\u1ea3n l\u00fd ph\u00f2ng ban. S\u01a1 \u0111\u1ed3 gi\u00fap hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac v\u00e0 c\u00e1c t\u01b0\u01a1ng t\u00e1c trong h\u1ec7 th\u1ed1ng.<\/p>\n<h5>C\u00e1c th\u00e0nh ph\u1ea7n v\u00ed d\u1ee5 c\u1ee7a s\u01a1 \u0111\u1ed3 ERD:<\/h5>\n<ul>\n<li><strong>Nh\u00e2n vi\u00ean<\/strong>: SSN (PK), S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, Ng\u01b0\u1eddi qu\u1ea3n l\u00fd, Ng\u00e0y sinh, Gi\u1edbi t\u00ednh, \u0110\u1ecba ch\u1ec9, L\u01b0\u01a1ng, T\u00ean, T\u00ean \u0111\u1ec7m, H\u1ecd.<\/li>\n<li><strong>Ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c<\/strong>: SSN nh\u00e2n vi\u00ean (FK), T\u00ean, Gi\u1edbi t\u00ednh, Ng\u00e0y sinh, M\u1ed1i quan h\u1ec7.<\/li>\n<li><strong>Ph\u00f2ng ban<\/strong>: S\u1ed1 (PK), T\u00ean, \u0110\u1ecba \u0111i\u1ec3m, S\u1ed1 l\u01b0\u1ee3ng nh\u00e2n vi\u00ean.<\/li>\n<li><strong>D\u1ef1 \u00e1n<\/strong>: S\u1ed1 (PK), S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, T\u00ean, \u0110\u1ecba \u0111i\u1ec3m.<\/li>\n<li><strong>D\u1ef1 \u00e1n_Nh\u00e2n vi\u00ean<\/strong>: S\u1ed1 d\u1ef1 \u00e1n, SSN nh\u00e2n vi\u00ean, S\u1ed1 gi\u1edd.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ph\u00f2ng ban<\/strong>: S\u1ed1 ph\u00f2ng ban, T\u00ean ph\u00f2ng ban, SSN nh\u00e2n vi\u00ean, Ng\u00e0y b\u1eaft \u0111\u1ea7u.<\/li>\n<\/ul>\n<h4>Y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng<\/h4>\n<ol>\n<li><strong>Qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean<\/strong>:\n<ul>\n<li>Th\u00eam, c\u1eadp nh\u1eadt v\u00e0 x\u00f3a c\u00e1c b\u1ea3n ghi nh\u00e2n vi\u00ean.<\/li>\n<li>Xem chi ti\u1ebft nh\u00e2n vi\u00ean v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ph\u00f2ng ban<\/strong>:\n<ul>\n<li>Th\u00eam, c\u1eadp nh\u1eadt v\u00e0 x\u00f3a th\u00f4ng tin ph\u00f2ng ban.<\/li>\n<li>Ph\u00e2n c\u00f4ng nh\u00e2n vi\u00ean v\u00e0o c\u00e1c ph\u00f2ng ban.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Qu\u1ea3n l\u00fd d\u1ef1 \u00e1n<\/strong>:\n<ul>\n<li>Th\u00eam, c\u1eadp nh\u1eadt v\u00e0 x\u00f3a th\u00f4ng tin d\u1ef1 \u00e1n.<\/li>\n<li>Ph\u00e2n c\u00f4ng nh\u00e2n vi\u00ean v\u00e0o c\u00e1c d\u1ef1 \u00e1n v\u00e0 theo d\u00f5i s\u1ed1 gi\u1edd l\u00e0m vi\u1ec7c.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c<\/strong>:\n<ul>\n<li>Th\u00eam, c\u1eadp nh\u1eadt v\u00e0 x\u00f3a c\u00e1c b\u1ea3n ghi ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c.<\/li>\n<li>Xem chi ti\u1ebft ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c li\u00ean k\u1ebft v\u1edbi nh\u00e2n vi\u00ean.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ph\u00f2ng ban<\/strong>:\n<ul>\n<li>Ph\u00e2n c\u00f4ng qu\u1ea3n l\u00fd v\u00e0o c\u00e1c ph\u00f2ng ban.<\/li>\n<li>Theo d\u00f5i ng\u00e0y b\u1eaft \u0111\u1ea7u qu\u1ea3n l\u00fd ph\u00f2ng ban.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>Y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng<\/h4>\n<ol>\n<li><strong>Hi\u1ec7u su\u1ea5t<\/strong>:\n<ul>\n<li>H\u1ec7 th\u1ed1ng ph\u1ea3i x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi.<\/li>\n<li>Th\u1ef1c thi truy v\u1ea5n ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u \u0111\u1ec3 c\u00f3 th\u1eddi gian ph\u1ea3n h\u1ed3i nhanh.<\/li>\n<\/ul>\n<\/li>\n<li><strong>B\u1ea3o m\u1eadt<\/strong>:\n<ul>\n<li>Th\u1ef1c hi\u1ec7n ki\u1ec3m so\u00e1t truy c\u1eadp d\u1ef1a tr\u00ean vai tr\u00f2 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u.<\/li>\n<li>M\u00e3 h\u00f3a th\u00f4ng tin nh\u1ea1y c\u1ea3m v\u1ec1 nh\u00e2n vi\u00ean v\u00e0 ng\u01b0\u1eddi ph\u1ee5 thu\u1ed9c.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>:\n<ul>\n<li>H\u1ec7 th\u1ed1ng ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng s\u1ed1 l\u01b0\u1ee3ng nh\u00e2n vi\u00ean v\u00e0 d\u1ef1 \u00e1n ng\u00e0y c\u00e0ng t\u0103ng.<\/li>\n<li>H\u1ed7 tr\u1ee3 c\u00e1c h\u1ec7 th\u1ed1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u00e2n t\u00e1n \u0111\u1ec3 x\u1eed l\u00fd t\u1ea3i t\u0103ng l\u00ean.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>Chi ti\u1ebft tri\u1ec3n khai<\/h4>\n<ol>\n<li><strong>Thi\u1ebft k\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/strong>:\n<ul>\n<li>Chu\u1ea9n h\u00f3a c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 tr\u00f9ng l\u1eb7p v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u.<\/li>\n<li>Th\u1ef1c hi\u1ec7n ch\u1ec9 m\u1ee5c tr\u00ean c\u00e1c b\u1ea3ng \u0111\u1ec3 th\u1ef1c thi truy v\u1ea5n nhanh ch\u00f3ng.<\/li>\n<\/ul>\n<\/li>\n<li><strong>C\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng<\/strong>:\n<ul>\n<li>S\u1eed d\u1ee5ng h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 (RDBMS) nh\u01b0 MySQL ho\u1eb7c PostgreSQL.<\/li>\n<li>Ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t khung web nh\u01b0 Django ho\u1eb7c Spring Boot.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/strong>:\n<ul>\n<li>Thi\u1ebft k\u1ebf giao di\u1ec7n tr\u1ef1c quan v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 d\u1ec5 d\u00e0ng \u0111i\u1ec1u h\u01b0\u1edbng.<\/li>\n<li>Cung c\u1ea5p b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n cho nh\u00e2n vi\u00ean, qu\u1ea3n l\u00fd v\u00e0 nh\u00e2n vi\u00ean h\u00e0nh ch\u00ednh nh\u00e2n s\u1ef1 \u0111\u1ec3 truy c\u1eadp th\u00f4ng tin li\u00ean quan.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>K\u1ebft lu\u1eadn<\/h4>\n<p>H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean, nh\u01b0 minh h\u1ecda b\u1edfi <a href=\"https:\/\/www.visual-paradigm.com\/solution\/erd-diagram-tool\/\">S\u01a1 \u0111\u1ed3 ER<\/a>, cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n \u0111\u1ec3 qu\u1ea3n l\u00fd l\u1ef1c l\u01b0\u1ee3ng lao \u0111\u1ed9ng c\u1ee7a m\u1ed9t t\u1ed5 ch\u1ee9c. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng v\u00e0 phi ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c n\u00eau r\u00f5, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh nh\u00e2n s\u1ef1, c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 t\u1ed5 ch\u1ee9c.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft v\u00e0 v\u00ed d\u1ee5, vui l\u00f2ng tham kh\u1ea3o <a href=\"https:\/\/www.archimetric.com\/visual-paradigm-%E5%85%A8%E8%83%BD%E7%9A%84%E5%9B%BE%E8%A1%A8%E5%92%8C%E9%A1%B9%E7%9B%AE%E7%AE%A1%E7%90%86%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\/\">S\u01a1 \u0111\u1ed3 ER<\/a> cho H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean v\u00e0 H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean <a href=\"https:\/\/www.visual-paradigm.com\/features\/database-design-with-erd-tools\/\">S\u01a1 \u0111\u1ed3 ER<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u M\u1ed9t H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd Nh\u00e2n vi\u00ean (EMS) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng gi\u00fap c\u00e1c t\u1ed5 ch\u1ee9c<\/p>\n","protected":false},"author":1,"featured_media":10672,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[13,3],"tags":[],"class_list":["post-10671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagrams","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - 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