{"id":6798,"date":"2022-02-18T10:59:24","date_gmt":"2022-02-18T10:59:24","guid":{"rendered":"https:\/\/www.cybermedian.com\/vn\/?p=6798"},"modified":"2025-02-07T09:40:33","modified_gmt":"2025-02-07T01:40:33","slug":"use-case-analysis-tutorial","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/vn\/use-case-analysis-tutorial\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ph\u00e2n t\u00edch tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng"},"content":{"rendered":"<h2>Bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 g\u00ec?<\/h2>\n<p>UML<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>l\u00e0 h\u00ecnh th\u1ee9c ch\u00ednh c\u1ee7a c\u00e1c y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng\/ph\u1ea7n m\u1ec1m cho c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea7n m\u1ec1m m\u1edbi \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. M\u1ee5c \u0111\u00edch c\u1ee7a m\u1ed9t bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 \u0111\u1ec3 h\u00ecnh dung nh\u1eefng g\u00ec h\u1ec7 th\u1ed1ng n\u00ean l\u00e0m (c\u00e1i g\u00ec); \u1edf giai \u0111o\u1ea1n n\u00e0y, n\u00f3 kh\u00f4ng xem x\u00e9t c\u00e1ch (nh\u01b0 th\u1ebf n\u00e0o) \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u \u0111\u00f3.<\/p>\n<p>Khi m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ea1i di\u1ec7n b\u1eb1ng m\u1ed9t bi\u1ec3u di\u1ec5n v\u0103n b\u1ea3n v\u00e0 h\u00ecnh \u1ea3nh (t\u1ee9c l\u00e0, m\u1ed9t bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p). M\u1ed9t kh\u00e1i ni\u1ec7m ch\u00ednh c\u1ee7a m\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 n\u00f3 gi\u00fap ch\u00fang ta thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng t\u1eeb g\u00f3c \u0111\u1ed9 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i. \u0110\u00e2y l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt hi\u1ec7u qu\u1ea3 \u0111\u1ec3 giao ti\u1ebfp h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1c thu\u1eadt ng\u1eef c\u1ee7a ng\u01b0\u1eddi d\u00f9ng b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh t\u1ea5t c\u1ea3 c\u00e1c h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y t\u1eeb b\u00ean ngo\u00e0i.<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, vi\u1ec7c s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c nh\u00ecn t\u1eeb b\u00ean ngo\u00e0i, t\u1ee9c l\u00e0 h\u1ec7 th\u1ed1ng kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c nh\u00ecn t\u1eeb b\u00ean trong, m\u00e0 t\u1eeb m\u1ed9t c\u1ea5p \u0111\u1ed9 cao h\u01a1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u1ee9c n\u0103ng m\u00e0 h\u1ec7 th\u1ed1ng n\u00ean cung c\u1ea5p cho c\u00e1c t\u00e1c nh\u00e2n b\u00ean ngo\u00e0i.<\/p>\n<h3>M\u1ee5c \u0111\u00edch c\u1ee7a c\u00e1c bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/use-case-diagram-tutorial\/\">C\u00e1c bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a>th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n, v\u00e0 m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cho c\u00e1c m\u1ee5c \u0111\u00edch sau.<\/p>\n<ul>\n<li>X\u00e1c \u0111\u1ecbnh b\u1ed1i c\u1ea3nh c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng<\/li>\n<li>N\u1eafm b\u1eaft c\u00e1c y\u00eau c\u1ea7u c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng<\/li>\n<li>X\u00e1c th\u1ef1c ki\u1ebfn tr\u00fac c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng<\/li>\n<li>Th\u00fac \u0111\u1ea9y vi\u1ec7c tri\u1ec3n khai v\u00e0 t\u1ea1o ra c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m tra<\/li>\n<li>Ph\u00e1t tri\u1ec3n b\u1edfi c\u00e1c nh\u00e0 ph\u00e2n t\u00edch, chuy\u00ean gia trong l\u0129nh v\u1ef1c v\u00e0 ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i m\u1ee5c ti\u00eau c\u00f9ng nhau<\/li>\n<\/ul>\n<p>M\u1ed9t h\u00ecnh th\u1ee9c ti\u00eau chu\u1ea9n c\u1ee7a bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh H\u1ee3p nh\u1ea5t, nh\u01b0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong v\u00ed d\u1ee5 v\u1ec1 bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<p><img alt=\"Use Case Diagram Tutorial\" class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/02-use-case-diagram-notations.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/92142a93-2b66-495e-8c97-6fd871672ee6.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Passenger%20Service\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 c\u1ee7a Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng<\/h3>\n<h3>T\u00e1c nh\u00e2n<\/h3>\n<p>M\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng s\u1ebd c\u00f3 \u00edt nh\u1ea5t m\u1ed9t t\u00e1c nh\u00e2n, c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 \u00edt nh\u1ea5t m\u1ed9t ng\u01b0\u1eddi tham gia (vai tr\u00f2), kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i l\u00e0 m\u1ed9t ng\u01b0\u1eddi, m\u00e0 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c thi\u1ebft b\u1ecb kh\u00e1c. M\u1ed9t t\u00e1c nh\u00e2n c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi nhi\u1ec1u t\u00e1c nh\u00e2n.<\/p>\n<p>T\u00e1c nh\u00e2n kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i l\u00e0 con ng\u01b0\u1eddi, t\u1ee9c l\u00e0 ng\u01b0\u1eddi d\u00f9ng, nh\u01b0ng th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 l\u00e0 nh\u1eefng th\u1ee9 kh\u00f4ng ph\u1ea3i con ng\u01b0\u1eddi, t\u1ee9c l\u00e0 h\u1ec7 th\u1ed1ng ho\u1eb7c th\u1eddi gian.<\/p>\n<p>Th\u01b0\u1eddng th\u00ec, ng\u01b0\u1eddi d\u00f9ng l\u00e0 con ng\u01b0\u1eddi, nh\u1eefng ng\u01b0\u1eddi tham gia v\u00e0o bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u00e1ch h\u00e0ng, nh\u00e2n vi\u00ean, gi\u00e1m s\u00e1t vi\u00ean, v.v.<\/p>\n<h3>T\u00e1c nh\u00e2n Con ng\u01b0\u1eddi vs Kh\u00f4ng Con ng\u01b0\u1eddi<\/h3>\n<p>T\u1eeb th\u1eddi gian n\u00e0y \u0111\u1ebfn th\u1eddi gian kh\u00e1c, h\u1ec7 th\u1ed1ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u s\u1ef1 ki\u1ec7n kh\u00e1c nhau \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng trong m\u1ed9t t\u00ecnh hu\u1ed1ng nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5, khi m\u1ed9t cu\u1ed9c ki\u1ec3m to\u00e1n \u0111\u01b0\u1ee3c th\u00f4ng qua, h\u1ec7 th\u1ed1ng ch\u1ee7 \u0111\u1ed9ng g\u1eedi m\u1ed9t b\u1ee9c th\u01b0 \u0111\u1ec3 th\u00f4ng b\u00e1o cho m\u1ecdi ng\u01b0\u1eddi; v\u1eady vi\u1ec7c g\u1eedi b\u1ee9c th\u01b0 c\u00f3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ef1 \u0111\u1ed9ng b\u1edfi h\u1ec7 th\u1ed1ng kh\u00f4ng? Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00e0y th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi th\u1eddi gian, sau \u0111\u00f3 t\u00e1c nh\u00e2n l\u00e0 B\u1ed9 \u0111\u1ebfm th\u1eddi gian; v\u00ed d\u1ee5, tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 \u201ct\u1ef1 \u0111\u1ed9ng g\u1eedi m\u1ed9t b\u1ee9c th\u01b0 v\u00e0o l\u00fac 5:00 m\u1ed7i ng\u00e0y\u201d, sau \u0111\u00f3 t\u00e1c nh\u00e2n k\u00edch ho\u1ea1t s\u1ef1 ki\u1ec7n n\u00e0y \u2013 g\u1eedi m\u1ed9t b\u1ee9c th\u01b0 \u2013 kh\u00f4ng ph\u1ea3i l\u00e0 h\u1ec7 th\u1ed1ng, m\u00e0 th\u1ef1c s\u1ef1 l\u00e0 T\u00e1c nh\u00e2n B\u1ed9 \u0111\u1ebfm th\u1eddi gian.<\/p>\n<h3>T\u00e1c nh\u00e2n Ch\u00ednh vs T\u00e1c nh\u00e2n Ph\u1ee5<\/h3>\n<p>M\u1ed9t t\u00e1c nh\u00e2n ch\u00ednh l\u00e0 m\u1ed9t t\u00e1c nh\u00e2n s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t m\u1ee5c ti\u00eau. C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ghi l\u1ea1i c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c t\u00e1c nh\u00e2n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau c\u1ee7a t\u00e1c nh\u00e2n ch\u00ednh. C\u00e1c t\u00e1c nh\u00e2n ph\u1ee5 l\u00e0 nh\u1eefng t\u00e1c nh\u00e2n m\u00e0 h\u1ec7 th\u1ed1ng c\u1ea7n h\u1ed7 tr\u1ee3 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau c\u1ee7a t\u00e1c nh\u00e2n ch\u00ednh.<\/p>\n<ul>\n<li>C\u00e1c t\u00e1c nh\u00e2n c\u00f3 th\u1ec3 l\u00e0 ch\u00ednh ho\u1eb7c ph\u1ee5. C\u00e1c t\u00e1c nh\u00e2n ch\u00ednh kh\u1edfi x\u01b0\u1edbng c\u00e1c t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u00e1c t\u00e1c nh\u00e2n ph\u1ee5 th\u01b0\u1eddng \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng g\u1ecdi \u0111\u1ebfn \u0111\u1ec3 gi\u00fap \u0111\u1ee1 v\u00e0 m\u1ed9t t\u00e1c nh\u00e2n ph\u1ee5 kh\u00f4ng bao gi\u1edd kh\u1edfi x\u01b0\u1edbng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<p>L\u01b0u \u00fd r\u1eb1ng: Bi\u1ec3u t\u01b0\u1ee3ng cho m\u1ed9t t\u00e1c nh\u00e2n kh\u00f4ng ph\u00e2n bi\u1ec7t gi\u1eefa t\u00e1c nh\u00e2n ch\u00ednh v\u00e0 t\u00e1c nh\u00e2n ph\u1ee5; s\u1ef1 kh\u00e1c bi\u1ec7t ph\u1ea3i \u0111\u01b0\u1ee3c suy ra t\u1eeb c\u00e1c m\u00f4 t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c c\u00e2u chuy\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng).<\/p>\n<p><strong>V\u00ed d\u1ee5:<\/strong><\/p>\n<p>M\u1ed9t nh\u00e2n vi\u00ean cho vay ng\u00e2n h\u00e0ng mu\u1ed1n xem x\u00e9t \u0111\u01a1n xin vay c\u1ee7a kh\u00e1ch h\u00e0ng, v\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a quy tr\u00ecnh li\u00ean quan \u0111\u1ebfn vi\u1ec7c ki\u1ec3m tra x\u1ebfp h\u1ea1ng t\u00edn d\u1ee5ng theo th\u1eddi gian th\u1ef1c.<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/use-case-diagram-loan-application-review.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/5d350852-2f12-4bd9-a8a1-9b17ace2132c.xml&amp;name=Use%20Case%20Diagram%3A%20Loan%20Application%20Review\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<ul>\n<li>T\u00ean Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng. Xem x\u00e9t \u0111\u01a1n xin vay<\/li>\n<li>T\u00e1c nh\u00e2n Ch\u00ednh. Nh\u00e2n vi\u00ean cho vay<\/li>\n<li>T\u00e1c nh\u00e2n Ph\u1ee5. H\u1ec7 th\u1ed1ng x\u1ebfp h\u1ea1ng t\u00edn d\u1ee5ng<\/li>\n<\/ul>\n<h2>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00f4i x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n?<\/h2>\n<p>V\u00ec m\u1ed9t t\u00e1c nh\u00e2n kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i l\u00e0 m\u1ed9t ng\u01b0\u1eddi, m\u00e0 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i, thi\u1ebft b\u1ecb ho\u1eb7c b\u1ed9 \u0111\u1ebfm th\u1eddi gian, ch\u00fang ta t\u00ecm m\u1ed9t t\u00e1c nh\u00e2n c\u1ee5 th\u1ec3 h\u01a1n b\u1eb1ng c\u00e1ch \u0111\u1eb7t ra c\u00e1c c\u00e2u h\u1ecfi sau<\/p>\n<ul>\n<li>Ai s\u1ebd s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng khi n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n?<\/li>\n<li>T\u1eeb ai ho\u1eb7c h\u1ec7 th\u1ed1ng n\u00e0o kh\u00e1c m\u00e0 h\u1ec7 th\u1ed1ng c\u1ea7n l\u1ea5y d\u1eef li\u1ec7u?<\/li>\n<li>Ai ho\u1eb7c h\u1ec7 th\u1ed1ng n\u00e0o kh\u00e1c m\u00e0 h\u1ec7 th\u1ed1ng s\u1ebd cung c\u1ea5p d\u1eef li\u1ec7u?<\/li>\n<li>H\u1ec7 th\u1ed1ng n\u00e0o kh\u00e1c m\u00e0 h\u1ec7 th\u1ed1ng s\u1ebd li\u00ean k\u1ebft?<\/li>\n<li>Ai s\u1ebd duy tr\u00ec v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng?<\/li>\n<\/ul>\n<p>Nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y gi\u00fap ch\u00fang ta tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u00e1c t\u00e1c nh\u00e2n c\u1ee7a h\u1ec7 th\u1ed1ng. S\u1eed d\u1ee5ng m\u00e1y ATM l\u00e0m v\u00ed d\u1ee5, vi\u1ec7c tr\u1ea3 l\u1eddi nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y cho ph\u00e9p ch\u00fang ta t\u00ecm th\u00eam c\u00e1c t\u00e1c nh\u00e2n, t\u1ee9c l\u00e0.<\/p>\n<ul>\n<li>Ng\u01b0\u1eddi<strong>v\u1eadn h\u00e0nh<\/strong>ch\u1ecbu tr\u00e1ch nhi\u1ec7m duy tr\u00ec v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng ATM<\/li>\n<li>M\u00e1y ATM c\u0169ng c\u1ea7n giao ti\u1ebfp v\u1edbi<strong>c\u00e1c m\u00e1y ch\u1ee7 ph\u00eda sau<\/strong>\u0111\u1ec3 l\u1ea5y th\u00f4ng tin v\u1ec1 t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n<h3>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p>M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t ch\u1ee9c n\u0103ng (th\u01b0\u1eddng l\u00e0 m\u1ed9t y\u00eau c\u1ea7u) m\u00e0 h\u1ec7 th\u1ed1ng d\u1ef1 ki\u1ebfn s\u1ebd \u0111\u01b0\u1ee3c tri\u1ec3n khai. C\u00e1c chi ti\u1ebft c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, ngo\u00e0i t\u00ean duy nh\u1ea5t c\u1ee7a n\u00f3, kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n tr\u1ef1c quan trong bi\u1ec3u \u0111\u1ed3; nh\u1eefng chi ti\u1ebft n\u00e0y \u0111\u01b0\u1ee3c \u0111\u01b0a ra trong c\u00e2u chuy\u1ec7n (m\u00f4 t\u1ea3 v\u0103n b\u1ea3n) c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<p>M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t danh s\u00e1ch c\u00e1c h\u00e0nh \u0111\u1ed9ng ho\u1eb7c b\u01b0\u1edbc s\u1ef1 ki\u1ec7n th\u01b0\u1eddng \u0111\u1ecbnh ngh\u0129a c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c vai tr\u00f2 c\u1ee7a t\u00e1c nh\u00e2n v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t m\u1ee5c ti\u00eau. C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt h\u1eefu \u00edch \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, l\u00e0m r\u00f5 v\u00e0 t\u1ed5 ch\u1ee9c c\u00e1c y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng bao g\u1ed3m m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c chu\u1ed7i t\u01b0\u01a1ng t\u00e1c c\u00f3 th\u1ec3 x\u1ea3y ra gi\u1eefa h\u1ec7 th\u1ed1ng v\u00e0 ng\u01b0\u1eddi d\u00f9ng m\u00e0 x\u00e1c \u0111\u1ecbnh ch\u1ee9c n\u0103ng c\u1ea7n \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p cho b\u1ea5t k\u1ef3 l\u1ed7i n\u00e0o c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i.<\/p>\n<h3>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng?<\/h3>\n<p>Khi ch\u00fang ta t\u00ecm th\u1ea5y c\u00e1c t\u00e1c nh\u00e2n, ch\u00fang ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean c\u00e1c t\u00e1c nh\u00e2n, ch\u1ee7 y\u1ebfu xem x\u00e9t c\u00e1c d\u1ecbch v\u1ee5 m\u00e0 m\u1ed7i t\u00e1c nh\u00e2n c\u1ea7n t\u1eeb h\u1ec7 th\u1ed1ng, ho\u1eb7c c\u00e1ch m\u00e0 c\u00e1c t\u00e1c nh\u00e2n s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c c\u00e2u h\u1ecfi sau (cho m\u1ed7i ng\u01b0\u1eddi tham gia).<\/p>\n<ul>\n<li>T\u1ea1i sao c\u00e1c t\u00e1c nh\u00e2n s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng?<\/li>\n<li>Ng\u01b0\u1eddi tham gia c\u00f3 t\u1ea1o, s\u1eeda \u0111\u1ed5i, x\u00f3a, truy c\u1eadp v\u00e0 l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong h\u1ec7 th\u1ed1ng kh\u00f4ng? N\u1ebfu c\u00f3, t\u00e1c nh\u00e2n th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c n\u00e0y nh\u01b0 th\u1ebf n\u00e0o?<\/li>\n<li>T\u00e1c nh\u00e2n c\u00f3 th\u00f4ng b\u00e1o cho h\u1ec7 th\u1ed1ng v\u1ec1 c\u00e1c s\u1ef1 ki\u1ec7n b\u00ean ngo\u00e0i nh\u1ea5t \u0111\u1ecbnh kh\u00f4ng?<\/li>\n<li>H\u1ec7 th\u1ed1ng c\u00f3 th\u00f4ng b\u00e1o cho t\u00e1c nh\u00e2n v\u1ec1 c\u00e1c s\u1ef1 ki\u1ec7n n\u1ed9i b\u1ed9 nh\u1ea5t \u0111\u1ecbnh kh\u00f4ng?<\/li>\n<\/ul>\n<p>K\u1ebft h\u1ee3p nh\u1eefng \u0111i\u1ec1u tr\u00ean, bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng ATM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ea1i di\u1ec7n nh\u01b0 sau.<\/p>\n<p><span style=\"font-size: 1.125rem\">Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y b\u1eb1ng c\u00e1c h\u00ecnh elip, c\u1ee7a m\u1ed9t c\u00e1i g\u00ec \u0111\u00f3 t\u0129nh ho\u1eb7c \u0111\u1ed9ng, ho\u1eb7c c\u1ee7a m\u1ed9t nhi\u1ec7m v\u1ee5 ho\u1eb7c m\u1ed9t h\u1ec7 th\u1ed1ng.<\/span><span style=\"font-size: 1.125rem\">\u00a0<\/span><\/p>\n<h2>Ranh gi\u1edbi H\u1ec7 th\u1ed1ng<\/h2>\n<p>Ranh gi\u1edbi h\u1ec7 th\u1ed1ng m\u00f4 t\u1ea3 h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch nh\u00f3m c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng trong c\u00e1c ranh gi\u1edbi h\u00ecnh ch\u1eef nh\u1eadt, v\u00e0 c\u00e1c ranh gi\u1edbi h\u1ec7 th\u1ed1ng trong Visual Paradigm cung c\u1ea5p h\u00e0nh vi ch\u1ee9a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<p>C\u00e1c t\u00e1c nh\u00e2n l\u00e0 c\u00e1c vai tr\u00f2 (t\u00e1c nh\u00e2n con ng\u01b0\u1eddi ho\u1eb7c t\u00e1c nh\u00e2n kh\u00f4ng con ng\u01b0\u1eddi) t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. Do \u0111\u00f3, c\u00e1c t\u00e1c nh\u00e2n n\u00ean \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean ngo\u00e0i ranh gi\u1edbi h\u1ec7 th\u1ed1ng v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean trong ranh gi\u1edbi h\u1ec7 th\u1ed1ng.<\/p>\n<p><strong>L\u01b0u \u00fd r\u1eb1ng:<\/strong><\/p>\n<p>M\u1ed9t t\u00e1c nh\u00e2n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi c\u00e1c ranh gi\u1edbi c\u1ee7a h\u1ec7 th\u1ed1ng. N\u1ebfu ranh gi\u1edbi h\u1ec7 th\u1ed1ng m\u00e0 ch\u00fang ta mu\u1ed1n \u0111\u1ecbnh ngh\u0129a b\u1ecb gi\u1edbi h\u1ea1n trong ch\u00ednh m\u00e1y ATM, th\u00ec m\u00e1y ch\u1ee7 ph\u00eda sau l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tr\u1eebu t\u01b0\u1ee3ng h\u00f3a nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n.<\/p>\n<p>N\u1ebfu ranh gi\u1edbi h\u1ec7 th\u1ed1ng m\u00e0 ch\u00fang ta mu\u1ed1n \u0111\u1ecbnh ngh\u0129a m\u1edf r\u1ed9ng \u0111\u1ebfn to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng, n\u01a1i c\u1ea3 m\u00e1y ATM v\u00e0 m\u00e1y ch\u1ee7 ph\u00eda sau \u0111\u1ec1u l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng, th\u00ec m\u00e1y ch\u1ee7 ph\u00eda sau kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c tr\u1eebu t\u01b0\u1ee3ng h\u00f3a nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n.<\/p>\n<h3>M\u1ed1i quan h\u1ec7<\/h3>\n<p>Sau khi t\u00ecm hi\u1ec3u v\u1ec1 ba bi\u1ec3u t\u01b0\u1ee3ng ch\u00ednh n\u00e0y, ti\u1ebfp t\u1ee5c v\u1edbi ki\u1ebfn th\u1ee9c v\u1ec1 M\u1ed1i quan h\u1ec7 v\u00e0 v\u1ebd c\u00e1c bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. M\u1ed9t m\u1ed1i quan h\u1ec7 tr\u1ef1c ti\u1ebfp gi\u1eefa m\u1ed9t ng\u01b0\u1eddi tham gia v\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c v\u1ebd, v\u00e0 m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng kh\u00f4ng c\u00f3 m\u0169i t\u00ean, ch\u1ec9 ra m\u1ed9t m\u1ed1i quan h\u1ec7 hai chi\u1ec1u, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u01b0\u1eddng li\u00ean k\u1ebft.<\/p>\n<p><span style=\"font-size: 1.125rem\">M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3<\/span><span style=\"font-size: 1.125rem\">\u00a0<\/span><span style=\"font-size: 1.125rem\">\u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c nhau \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1edfi c\u00e1c m\u1ed1i quan h\u1ec7 &lt;&lt;bao g\u1ed3m&gt;&gt;, &lt;&lt;m\u1edf r\u1ed9ng&gt;&gt; ho\u1eb7c &lt;&lt;kh\u00e1i qu\u00e1t&gt;&gt; (\u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 sau trong b\u00e0i vi\u1ebft n\u00e0y).<\/span><\/p>\n<h3>M\u1ed1i quan h\u1ec7 Li\u00ean k\u1ebft Giao ti\u1ebfp<\/h3>\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho m\u1ed9t giao ti\u1ebfp hai chi\u1ec1u gi\u1eefa m\u1ed9t t\u00e1c nh\u00e2n v\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 do \u0111\u00f3 l\u00e0 m\u1ed9t quan h\u1ec7 nh\u1ecb ph\u00e2n.<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/use-case-diagram-binary-relation.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/1399c965-658e-497a-807c-2a034b502170.xml&amp;name=Use%20Case%20Diagram%20Binary%20Relation\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<h3>M\u1ed1i quan h\u1ec7 &lt;&lt;Bao g\u1ed3m&gt;&gt;<\/h3>\n<p>M\u1ed9t<strong>bao g\u1ed3m<\/strong>m\u1ed1i quan h\u1ec7 c\u00f3 ngh\u0129a l\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng s\u1ebd bao g\u1ed3m c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c. M\u1ee5c \u0111\u00edch c\u1ee7a M\u1ed1i quan h\u1ec7 Bao g\u1ed3m l\u00e0 s\u1eed d\u1ee5ng M\u1ed1i quan h\u1ec7 Bao g\u1ed3m \u0111\u1ec3 gi\u1ea3m s\u1ef1 l\u1eb7p l\u1ea1i c\u1ee7a vi\u1ec7c m\u00f4 t\u1ea3 c\u00f9ng m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u1ed9t l\u1ea7n n\u1eefa. N\u1ebfu nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p chia s\u1ebb c\u00f9ng m\u1ed9t ch\u1ee9c n\u0103ng ph\u1ea7n, th\u00ec ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1ch ra v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bao g\u1ed3m trong tr\u01b0\u1eddng h\u1ee3p.<\/p>\n<p>V\u00ed d\u1ee5, th\u1ee7 th\u01b0 c\u1ea7n \u0111\u1ecdc m\u00e3 \u0111\u1ec3 ghi l\u1ea1i cu\u1ed1n s\u00e1ch \u0111\u00e3 m\u01b0\u1ee3n khi cu\u1ed1n s\u00e1ch \u0111\u01b0\u1ee3c ki\u1ec3m tra, v\u00e0 c\u0169ng c\u1ea7n \u0111\u1ecdc m\u00e3 \u0111\u1ec3 ghi l\u1ea1i cu\u1ed1n s\u00e1ch \u0111\u00e3 tr\u1ea3 khi cu\u1ed1n s\u00e1ch \u0111\u01b0\u1ee3c tr\u1ea3 l\u1ea1i, v\u00ec vi\u1ec7c \u0111\u1ecdc m\u00e3 l\u00e0 m\u1ed9t ph\u1ea7n h\u00e0nh \u0111\u1ed9ng l\u1eb7p l\u1ea1i, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ri\u00eang bi\u1ec7t, v\u00e0 \u0111\u1ec3 cu\u1ed1n s\u00e1ch \u0111\u00e3 m\u01b0\u1ee3n v\u00e0 cu\u1ed1n s\u00e1ch \u0111\u00e3 tr\u1ea3 bao g\u1ed3m tr\u01b0\u1eddng h\u1ee3p n\u00e0y.<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/include-use-case-example.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/408fe5a6-2153-4359-b101-085709a94e2d.xml&amp;name=Include%20Use%20Case%20Example\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<p>N\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A bao g\u1ed3m m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c B, th\u00ec vi\u1ec7c th\u1ef1c hi\u1ec7n A y\u00eau c\u1ea7u vi\u1ec7c th\u1ef1c hi\u1ec7n B \u0111\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 c\u1ee7a n\u00f3. Tuy nhi\u00ean, B \u0111\u1ed9c l\u1eadp v\u1edbi ch\u00ednh n\u00f3. T\u1ee9c l\u00e0, B kh\u00f4ng c\u1ea7n bi\u1ebft b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec v\u1ec1 A. B c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bao g\u1ed3m trong b\u1ea5t k\u1ef3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00e0o kh\u00e1c.<\/p>\n<h3>M\u1ed1i quan h\u1ec7 &lt;&lt;M\u1edf r\u1ed9ng&gt;&gt;<\/h3>\n<p>N\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B m\u1edf r\u1ed9ng m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c A, th\u00ec vi\u1ec7c th\u1ef1c hi\u1ec7n A c\u00f3 th\u1ec3 \u0111i\u1ec1u ki\u1ec7n bao g\u1ed3m vi\u1ec7c th\u1ef1c hi\u1ec7n B \u0111\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 c\u1ee7a n\u00f3. T\u1ee9c l\u00e0, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, A c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 c\u1ee7a m\u00ecnh m\u00e0 kh\u00f4ng c\u1ea7n B. Tuy nhi\u00ean, t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3, A c\u00f3 th\u1ec3 y\u00eau c\u1ea7u B. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, B ph\u1ee5 thu\u1ed9c v\u00e0o B. Tuy nhi\u00ean, t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3, A c\u00f3 th\u1ec3 y\u00eau c\u1ea7u B. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, B ph\u1ee5 thu\u1ed9c v\u00e0o A v\u00e0 kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i m\u1ed9t m\u00ecnh. V\u00ec l\u00fd do n\u00e0y, B kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng \u0111\u1ebfn nhi\u1ec1u h\u01a1n m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. C\u00e2u chuy\u1ec7n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a A s\u1ebd bao g\u1ed3m c\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n m\u00e0 n\u00f3 y\u00eau c\u1ea7u t\u1eeb B; \u0111i\u1ec3m n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111i\u1ec3m m\u1edf r\u1ed9ng.<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/extend-use-case-example.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/12fa856c-720a-48c6-bb2f-e17e1d630b64.xml&amp;name=Extend%20Use%20Case%20Example\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<p>H\u00e3y xem m\u1ed9t v\u00ed d\u1ee5 kh\u00e1c n\u01a1i h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng \u0111\u1eb7t h\u00e0ng khi kh\u00f4ng c\u00f2n h\u00e0ng t\u1ed3n kho \u0111\u1ec3 ng\u01b0\u1eddi qu\u1ea3n l\u00fd kh\u00f4ng ph\u1ea3i th\u1ef1c hi\u1ec7n \u0111\u01a1n h\u00e0ng tr\u1ef1c ti\u1ebfp. Xem bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/extend-use-case-example-place-order.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/6bba449e-9dc9-4e16-9f21-4bc838c68479.xml&amp;name=Extend%20Use%20Case%20Example%3A%20Place%20Order\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<h3 id=\"hkCbUWh\">M\u1ed1i quan h\u1ec7 Kh\u00e1i qu\u00e1t<\/h3>\n<p>M\u1ed1i quan h\u1ec7 kh\u00e1i qu\u00e1t t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ed1i quan h\u1ec7 kh\u00e1i qu\u00e1t trong ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng trong c\u00e1c bi\u1ec3u \u0111\u1ed3 l\u1edbp, v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho vi\u1ec7c kh\u00e1i qu\u00e1t c\u00e1c vai tr\u00f2 (t\u00e1c nh\u00e2n) v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<p>V\u00ed d\u1ee5, trong h\u1ec7 th\u1ed1ng \u0111\u1eb7t ch\u1ed7, c\u00f3 hai lo\u1ea1i ph\u01b0\u01a1ng th\u1ee9c \u0111\u1eb7t ch\u1ed7: \u201c\u0111\u1eb7t v\u00e9 qua \u0111i\u1ec7n tho\u1ea1i\u201d v\u00e0 \u201c\u0111\u1eb7t v\u00e9 tr\u1ef1c tuy\u1ebfn\u201d, v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n \u201c\u0111\u1eb7t v\u00e9\u201d, v\u00ec v\u1eady b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng kh\u00e1i qu\u00e1t \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh tr\u01b0\u1eddng h\u1ee3p, v\u00e0 th\u00eam &lt;&lt;c\u1ea7n thi\u1ebft&gt;&gt; v\u00e0o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cha (\u0111\u1eb7t ch\u1ed7) \u0111\u1ec3 ch\u1ec9 ra m\u1ed1i quan h\u1ec7 kh\u00e1i qu\u00e1t.<\/p>\n<p><img class=\"aligncenter\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/vn\/wp-content\/uploads\/sites\/14\/2022\/02\/generalization-use-case-example-book-ticket.png\"\/><\/p>\n<p style=\"text-align: center\"><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/e7c65465-a13b-4188-abcc-1792f687be39.xml&amp;name=Generalization%20Use%20Case%20Example%3A%20Book%20Ticket\">Ch\u1ec9nh s\u1eeda v\u00ed d\u1ee5 v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p S\u1eed d\u1ee5ng n\u00e0y<\/a><\/p>\n<h3>Th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c m\u1ed1i quan h\u1ec7 trong bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<ul>\n<li>Trong m\u1ed9t bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng chung, ch\u00fang ta ch\u1ec9 \u0111\u1ea1i di\u1ec7n cho c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c t\u00e1c nh\u00e2n v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, t\u1ee9c l\u00e0, c\u00e1c li\u00ean k\u1ebft giao ti\u1ebfp gi\u1eefa ch\u00fang.<\/li>\n<li>Ngo\u00e0i ra, ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 m\u00f4 t\u1ea3 s\u1ef1 kh\u00e1i qu\u00e1t gi\u1eefa c\u00e1c ng\u01b0\u1eddi tham gia v\u00e0 c\u00e1c t\u00e1c nh\u00e2n, v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7 bao g\u1ed3m, m\u1edf r\u1ed9ng v\u00e0 kh\u00e1i qu\u00e1t gi\u1eefa c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<li>Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng nh\u1eefng m\u1ed1i quan h\u1ec7 n\u00e0y \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng hi\u1ec7n c\u00f3 v\u00e0 tr\u00edch xu\u1ea5t m\u1ed9t s\u1ed1 th\u00f4ng tin chung \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng, l\u00e0m cho m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng d\u1ec5 duy tr\u00ec h\u01a1n.<\/li>\n<li>Tuy nhi\u00ean, ch\u00fang ta ph\u1ea3i c\u1ea9n th\u1eadn trong vi\u1ec7c ch\u1ecdn c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y trong \u1ee9ng d\u1ee5ng. N\u00f3i chung, c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y l\u00e0m t\u0103ng s\u1ed1 l\u01b0\u1ee3ng c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 c\u00e1c m\u1ed1i quan h\u1ec7, do \u0111\u00f3 l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<li>H\u01a1n n\u1eefa, m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh sau khi ho\u00e0n th\u00e0nh, v\u00ec v\u1eady kh\u00f4ng c\u1ea7n ph\u1ea3i v\u1ed9i v\u00e0ng \u0111\u1ec3 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a m\u00f4 h\u00ecnh h\u00f3a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<h3>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u2013 Lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/h3>\n<p>Bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cung c\u1ea5p cho ch\u00fang ta c\u00e1i nh\u00ecn t\u1ed5ng th\u1ec3 v\u1ec1 ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng, ch\u00fang ta c\u00f3 th\u1ec3 bi\u1ebft ai s\u1ebd t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng, v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 m\u00e0 m\u1ed7i t\u00e1c nh\u00e2n c\u1ea7n nh\u1eadn t\u1eeb h\u1ec7 th\u1ed1ng.<\/p>\n<p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u00f4 t\u1ea3 cu\u1ed9c tr\u00f2 chuy\u1ec7n gi\u1eefa c\u00e1c t\u00e1c nh\u00e2n v\u00e0 h\u1ec7 th\u1ed1ng, nh\u01b0ng c\u00e1c chi ti\u1ebft c\u1ee7a cu\u1ed9c tr\u00f2 chuy\u1ec7n n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u00ec v\u1eady cho m\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, ch\u00fang ta c\u00f3 th\u1ec3 m\u00f4 t\u1ea3 c\u00e1c chi ti\u1ebft c\u1ee7a cu\u1ed9c tr\u00f2 chuy\u1ec7n n\u00e0y d\u01b0\u1edbi d\u1ea1ng m\u1ed9t lu\u1ed3ng s\u1ef1 ki\u1ec7n.<\/p>\n<h3>C\u00e1c k\u1ecbch b\u1ea3n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 Lu\u1ed3ng s\u1ef1 ki\u1ec7n \u2013 R\u00fat ti\u1ec1n ATM<\/h3>\n<p>V\u00ed d\u1ee5, tr\u01b0\u1eddng h\u1ee3p \u201cR\u00fat ti\u1ec1n\u201d trong h\u1ec7 th\u1ed1ng ATM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ea1i di\u1ec7n b\u1edfi m\u1ed9t lu\u1ed3ng s\u1ef1 ki\u1ec7n nh\u01b0 sau:<\/p>\n<p>K\u1ecbch b\u1ea3n b\u00ecnh th\u01b0\u1eddng \u2013 R\u00fat ti\u1ec1n \u2013 quy tr\u00ecnh c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n:<\/p>\n<ol>\n<li>Ng\u01b0\u1eddi d\u00f9ng ch\u00e8n th\u1ebb t\u00edn d\u1ee5ng<\/li>\n<li>Nh\u1eadp m\u00e3 PIN<\/li>\n<li>Nh\u1eadp s\u1ed1 ti\u1ec1n r\u00fat<\/li>\n<li>R\u00fat ti\u1ec1n m\u1eb7t<\/li>\n<li>Tho\u00e1t kh\u1ecfi h\u1ec7 th\u1ed1ng v\u00e0 l\u1ea5y l\u1ea1i th\u1ebb t\u00edn d\u1ee5ng<\/li>\n<\/ol>\n<p>Nh\u01b0ng \u0111i\u1ec1u n\u00e0y ch\u1ec9 m\u00f4 t\u1ea3 k\u1ecbch b\u1ea3n b\u00ecnh th\u01b0\u1eddng c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng r\u00fat ti\u1ec1n. L\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ATM th\u1ef1c t\u1ebf, ch\u00fang ta c\u0169ng ph\u1ea3i xem x\u00e9t nhi\u1ec1u k\u1ecbch b\u1ea3n kh\u00e1c c\u00f3 th\u1ec3 x\u1ea3y ra, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li>th\u1ebb t\u00edn d\u1ee5ng kh\u00f4ng h\u1ee3p l\u1ec7,<\/li>\n<li>m\u1eadt kh\u1ea9u sai,<\/li>\n<li>s\u1ed1 d\u01b0 ti\u1ec1n m\u1eb7t kh\u00f4ng \u0111\u1ee7 trong t\u00e0i kho\u1ea3n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, v.v.<\/li>\n<\/ul>\n<p>T\u1ea5t c\u1ea3 nh\u1eefng t\u00ecnh hu\u1ed1ng c\u00f3 th\u1ec3 x\u1ea3y ra n\u00e0y (c\u1ea3 b\u00ecnh th\u01b0\u1eddng v\u00e0 b\u1ea5t th\u01b0\u1eddng) \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 k\u1ecbch b\u1ea3n c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 c\u00e1c k\u1ecbch b\u1ea3n c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. C\u00e1c k\u1ecbch b\u1ea3n c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee7a c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Trong s\u1ed1 c\u00e1c k\u1ecbch b\u1ea3n kh\u00e1c nhau c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, k\u1ecbch b\u1ea3n ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1edfi quy tr\u00ecnh c\u01a1 b\u1ea3n, trong khi c\u00e1c k\u1ecbch b\u1ea3n kh\u00e1c \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1edfi c\u00e1c quy tr\u00ecnh thay th\u1ebf.<\/p>\n<p><strong>K\u1ecbch b\u1ea3n thay th\u1ebf<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u201cR\u00fat ti\u1ec1n\u201d trong h\u1ec7 th\u1ed1ng ATM, ch\u00fang ta c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t s\u1ed1 quy tr\u00ecnh thay th\u1ebf nh\u01b0 sau.<\/p>\n<p>R\u00fat ti\u1ec1n \u2013 quy tr\u00ecnh s\u1ef1 ki\u1ec7n thay th\u1ebf.<\/p>\n<ol>\n<li>K\u1ecbch b\u1ea3n thay th\u1ebf I: Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1eeb ch\u1ed1i \u1edf b\u1ea5t k\u1ef3 b\u01b0\u1edbc n\u00e0o c\u1ee7a quy tr\u00ecnh c\u01a1 b\u1ea3n v\u00e0 \u0111i \u0111\u1ebfn b\u01b0\u1edbc 5 c\u1ee7a quy tr\u00ecnh c\u01a1 b\u1ea3n.<\/li>\n<li>Quy tr\u00ecnh thay th\u1ebf II: \u1ede b\u01b0\u1edbc 1 c\u1ee7a quy tr\u00ecnh c\u01a1 b\u1ea3n, ng\u01b0\u1eddi d\u00f9ng ch\u00e8n th\u1ebb t\u00edn d\u1ee5ng kh\u00f4ng h\u1ee3p l\u1ec7, h\u1ec7 th\u1ed1ng hi\u1ec3n th\u1ecb l\u1ed7i v\u00e0 tho\u00e1t th\u1ebb t\u00edn d\u1ee5ng, v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng k\u1ebft th\u00fac.<\/li>\n<li>Quy tr\u00ecnh thay th\u1ebf III: \u1ede b\u01b0\u1edbc 2 c\u1ee7a quy tr\u00ecnh c\u01a1 b\u1ea3n, ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1eadt kh\u1ea9u kh\u00f4ng ch\u00ednh x\u00e1c, h\u1ec7 th\u1ed1ng hi\u1ec3n th\u1ecb l\u1ed7i v\u00e0 y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u v\u00e0 quay l\u1ea1i b\u01b0\u1edbc 2 c\u1ee7a quy tr\u00ecnh c\u01a1 b\u1ea3n; sau ba l\u1ea7n nh\u1eadp m\u1eadt kh\u1ea9u kh\u00f4ng ch\u00ednh x\u00e1c, th\u1ebb t\u00edn d\u1ee5ng s\u1ebd b\u1ecb h\u1ec7 th\u1ed1ng t\u1ecbch thu v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng k\u1ebft th\u00fac.<\/li>\n<li>\u2026<\/li>\n<\/ol>\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p k\u1ecbch b\u1ea3n c\u01a1 b\u1ea3n v\u00e0 c\u00e1c k\u1ecbch b\u1ea3n thay th\u1ebf, t\u1ea5t c\u1ea3 c\u00e1c t\u00ecnh hu\u1ed1ng kh\u00e1c nhau c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng. Khi m\u00f4 t\u1ea3 quy tr\u00ecnh s\u1ef1 ki\u1ec7n c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, ch\u00fang ta mu\u1ed1n m\u00f4 t\u1ea3 t\u1ea5t c\u1ea3 c\u00e1c k\u1ecbch b\u1ea3n c\u00f3 th\u1ec3 x\u1ea3y ra c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a c\u00e1c y\u00eau c\u1ea7u.<\/p>\n<h3>M\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng so v\u1edbi bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 tr\u00e1nh hi\u1ec3u l\u1ea7m r\u1eb1ng m\u1ed9t <strong>bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong>bao g\u1ed3m c\u00e1c di\u1ec5n vi\u00ean v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u00ec m\u1ed9t bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u1ec9 l\u00e0 m\u1ed9t \u0111\u1ea1i di\u1ec7n h\u00ecnh \u1ea3nh c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 m\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 cung c\u1ea5p, cho ch\u00fang ta m\u1ed9t \u00fd t\u01b0\u1edfng t\u1ed5ng qu\u00e1t v\u1ec1 ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p>M\u00f4 h\u00ecnh <strong>tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong>bao g\u1ed3m m\u1ed9t bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 m\u1ed9t m\u00f4 t\u1ea3 chi ti\u1ebft v\u1ec1 t\u1eebng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, \u0111\u1eb7c t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, \u0111\u01b0\u1ee3c cung c\u1ea5p d\u01b0\u1edbi d\u1ea1ng m\u1eabu trong RUP.<\/p>\n<p><strong>M\u00f4 t\u1ea3 ng\u1eafn g\u1ecdn<\/strong><br \/>\nM\u1ed9t m\u00f4 t\u1ea3 ng\u1eafn g\u1ecdn v\u1ec1 vai tr\u00f2 v\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<p><strong>Quy tr\u00ecnh s\u1ef1 ki\u1ec7n <\/strong><br \/>\nQuy tr\u00ecnh s\u1ef1 ki\u1ec7n n\u00ean \u0111\u1ea1i di\u1ec7n cho t\u1ea5t c\u1ea3 c\u00e1c k\u1ecbch b\u1ea3n, bao g\u1ed3m c\u1ea3 k\u1ecbch b\u1ea3n c\u01a1 b\u1ea3n v\u00e0 k\u1ecbch b\u1ea3n thay th\u1ebf.<\/p>\n<p><strong>K\u1ecbch b\u1ea3n tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/strong><br \/>\nBao g\u1ed3m c\u00e1c k\u1ecbch b\u1ea3n th\u00e0nh c\u00f4ng v\u00e0 k\u1ecbch b\u1ea3n th\u1ea5t b\u1ea1i, v\u00e0 c\u00e1c k\u1ecbch b\u1ea3n ch\u1ee7 y\u1ebfu l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c quy tr\u00ecnh c\u01a1 b\u1ea3n v\u00e0 quy tr\u00ecnh thay th\u1ebf.<\/p>\n<p><strong>Y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t<\/strong><br \/>\nM\u00f4 t\u1ea3 c\u00e1c y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng (bao g\u1ed3m hi\u1ec7u su\u1ea5t, \u0111\u1ed9 tin c\u1eady, kh\u1ea3 n\u0103ng s\u1eb5n c\u00f3, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, v.v.) v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c thi\u1ebft k\u1ebf (h\u1ec7 \u0111i\u1ec1u h\u00e0nh, c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n, v.v.) li\u00ean quan \u0111\u1ebfn tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n<p><strong>\u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft<\/strong><br \/>\nTr\u1ea1ng th\u00e1i m\u00e0 h\u1ec7 th\u1ed1ng ph\u1ea3i \u1edf tr\u01b0\u1edbc khi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n<p><strong>\u0110i\u1ec1u ki\u1ec7n h\u1eadu<\/strong><br \/>\nT\u1eadp h\u1ee3p c\u00e1c tr\u1ea1ng th\u00e1i m\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u1edf sau khi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n<p>M\u1ed9t \u0111\u1eb7c t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t \u0111\u1ea1i di\u1ec7n v\u0103n b\u1ea3n, v\u1edbi t\u00f9y ch\u1ecdn s\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 tr\u1ea1ng th\u00e1i, bi\u1ec3u \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c bi\u1ec3u \u0111\u1ed3 tu\u1ea7n t\u1ef1 \u0111\u1ec3 gi\u00fap m\u00f4 t\u1ea3 quy tr\u00ecnh s\u1ef1 ki\u1ec7n r\u00f5 r\u00e0ng h\u01a1n. B\u1ea5t k\u1ef3 \u0111\u1ea1i di\u1ec7n \u0111\u1ed3 h\u1ecda n\u00e0o c\u1ee7a giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 quy tr\u00ecnh, ho\u1eb7c \u0111\u1ed3 h\u1ecda kh\u00e1c, t\u1ee9c l\u00e0 wireframes, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00ednh k\u00e8m v\u00e0o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng mi\u1ec5n l\u00e0 ch\u00fang gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 r\u00f5 r\u00e0ng c\u1ee7a \u0111\u1ea1i di\u1ec7n.<\/p>\n<p>V\u00ed d\u1ee5:<\/p>\n<ul>\n<li>bi\u1ec3u \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng h\u1eefu \u00edch cho vi\u1ec7c m\u00f4 t\u1ea3 c\u00e1c quy tr\u00ecnh quy\u1ebft \u0111\u1ecbnh ph\u1ee9c t\u1ea1p,<\/li>\n<li>bi\u1ec3u \u0111\u1ed3 chuy\u1ec3n tr\u1ea1ng th\u00e1i h\u1eefu \u00edch cho vi\u1ec7c m\u00f4 t\u1ea3 h\u00e0nh vi h\u1ec7 th\u1ed1ng li\u00ean quan \u0111\u1ebfn tr\u1ea1ng th\u00e1i, v\u00e0<\/li>\n<li>bi\u1ec3u \u0111\u1ed3 tu\u1ea7n t\u1ef1 ph\u00f9 h\u1ee3p \u0111\u1ec3 m\u00f4 t\u1ea3 th\u00f4ng \u0111i\u1ec7p d\u1ef1a tr\u00ean th\u1eddi gian.<\/li>\n<\/ul>\n<h3>C\u00f4ng c\u1ee5 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n<p><strong>Phi\u00ean b\u1ea3n tr\u1ef1c tuy\u1ebfn<\/strong><\/p>\n<p>C\u00f4ng c\u1ee5 v\u1ebd mi\u1ec5n ph\u00ed <a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/solutions\/free-use-case-diagram-tool\/\">Visual Paradigm Online<\/a> (VP Online) phi\u00ean b\u1ea3n mi\u1ec5n ph\u00ed h\u1ed7 tr\u1ee3 UML, ERD v\u00e0 bi\u1ec3u \u0111\u1ed3 t\u1ed5 ch\u1ee9c. B\u1ea1n c\u00f3 th\u1ec3 nhanh ch\u00f3ng v\u1ebd c\u00e1c bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u1edbi tr\u00ecnh ch\u1ec9nh s\u1eeda v\u1ebd UML tr\u1ef1c quan. C\u00f4ng c\u1ee5 UML mi\u1ec5n ph\u00ed n\u00e0y kh\u00f4ng c\u00f3 qu\u1ea3ng c\u00e1o, kh\u00f4ng c\u00f3 th\u1eddi gian truy c\u1eadp h\u1ea1n ch\u1ebf v\u00e0 kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng bi\u1ec3u \u0111\u1ed3, s\u1ed1 l\u01b0\u1ee3ng h\u00ecnh d\u1ea1ng, v.v. V\u1ebd UML m\u1ed9t c\u00e1ch t\u1ef1 do. V\u1ebd UML m\u1ed9t c\u00e1ch t\u1ef1 do. b\u1ea1n s\u1edf h\u1eefu c\u00e1c bi\u1ec3u \u0111\u1ed3 b\u1ea1n t\u1ea1o ra cho m\u1ee5c \u0111\u00edch c\u00e1 nh\u00e2n v\u00e0 phi th\u01b0\u01a1ng m\u1ea1i.<\/p>\n<p><strong>Phi\u00ean b\u1ea3n m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n<\/strong><\/p>\n<p>M\u00f4 h\u00ecnh <a href=\"https:\/\/www.visual-paradigm.com\/solution\/free-use-case-tool\/\">Visual Paradigm Community Edition<\/a>, c\u00f3 s\u1eb5n t\u1eeb n\u0103m 2004, cung c\u1ea5p ph\u1ea7n m\u1ec1m UML mi\u1ec5n ph\u00ed ch\u1ec9 cho m\u1ee5c \u0111\u00edch phi th\u01b0\u01a1ng m\u1ea1i, h\u1ed7 tr\u1ee3 ng\u01b0\u1eddi d\u00f9ng \u0111ang th\u1ef1c hi\u1ec7n nh\u1eefng b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong m\u00f4 h\u00ecnh h\u00f3a UML, c\u0169ng nh\u01b0 nh\u1eefng ng\u01b0\u1eddi c\u1ea7n ph\u1ea7n m\u1ec1m m\u00f4 h\u00ecnh h\u00f3a UML mi\u1ec5n ph\u00ed, \u0111a n\u1ec1n t\u1ea3ng cho m\u1ee5c \u0111\u00edch c\u00e1 nh\u00e2n, ch\u1eb3ng h\u1ea1n nh\u01b0 \u00e1p d\u1ee5ng UML cho c\u00e1c d\u1ef1 \u00e1n sinh vi\u00ean.<\/p>\n<p><strong>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">Bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 g\u00ec?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/types-of-actor-in-use-case-model\/\">C\u00e1c lo\u1ea1i di\u1ec5n vi\u00ean trong m\u00f4 h\u00ecnh tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/sysml\/identify-user-requirements-with-use-case-diagrams\/\">X\u00e1c \u0111\u1ecbnh y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng v\u1edbi c\u00e1c bi\u1ec3u \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/use-case\/what-is-use-case-specification\/\">\u0110\u1eb7c t\u1ea3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00e0 g\u00ec?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/agile-software-development\/user-story-vs-use-case\/\">C\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng so v\u1edbi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cho ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m Agile<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/agile-software-development\/what-is-use-case-driven-approach-for-agile\/\">C\u00e1ch ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng cho ph\u00e1t tri\u1ec3n Agile<\/a><\/li>\n<\/ul>\n<h3>T\u00e0i nguy\u00ean UML<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml\/\">UML l\u00e0 g\u00ec?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/why-uml-modeling\/\">T\u1ea1i sao l\u1ea1i m\u00f4 h\u00ecnh h\u00f3a UML?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/overview-of-the-14-uml-diagram-types\/\">T\u1ed5ng quan v\u1ec1 14 lo\u1ea1i bi\u1ec3u \u0111\u1ed3 UML<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>UML use case diagrams are the primary form of system\/software requirements for new software programs under development. The purpose of a use case diagram is to visualize what the system should do (what); at this stage, it does not consider how (how) to do it.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":6968,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[13,3],"tags":[52,63,62,53],"class_list":["post-6798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagrams","category-unified-modeling-language","tag-cn-done","tag-es-done","tag-ja-done","tag-tw-done"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u01b0\u1edbng d\u1eabn ph\u00e2n t\u00edch tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng - Cybermedian<\/title>\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.cybermedian.com\/vn\/use-case-analysis-tutorial\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn ph\u00e2n t\u00edch tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng - Cybermedian\" \/>\n<meta property=\"og:description\" content=\"UML use case diagrams are the primary form of system\/software requirements for new software programs under development. 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