{"id":9858,"date":"2025-01-10T13:35:24","date_gmt":"2025-01-10T05:35:24","guid":{"rendered":"https:\/\/www.cybermedian.com\/cn\/understanding-use-case-diagrams-key-concepts-and-applications\/"},"modified":"2026-04-14T11:08:07","modified_gmt":"2026-04-14T11:08:07","slug":"understanding-use-case-diagrams-key-concepts-and-applications","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/cn\/understanding-use-case-diagrams-key-concepts-and-applications\/","title":{"rendered":"\u7406\u89e3\u7528\u4f8b\u56fe\uff1a\u5173\u952e\u6982\u5ff5\u4e0e\u5e94\u7528"},"content":{"rendered":"<h2>\u5f15\u8a00<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">\u7528\u4f8b\u56fe<\/a>\u662f\u8f6f\u4ef6\u5de5\u7a0b\u548c\u7cfb\u7edf\u5206\u6790\u4e2d\u7684\u57fa\u672c\u5de5\u5177\uff0c\u7528\u4e8e\u4ece\u7528\u6237\u7684\u89d2\u5ea6\u6355\u83b7\u548c\u5efa\u6a21\u7cfb\u7edf\u7684\u529f\u80fd\u9700\u6c42\u3002\u8fd9\u4e9b\u56fe\u8868\u4ee5\u53ef\u89c6\u5316\u65b9\u5f0f\u5c55\u793a\u7528\u6237\uff08\u53c2\u4e0e\u8005\uff09\u4e0e\u7cfb\u7edf\u4e4b\u95f4\u7684\u4ea4\u4e92\uff0c\u6709\u52a9\u4e8e\u8bc6\u522b\u548c\u8bb0\u5f55\u7cfb\u7edf\u7684\u884c\u4e3a\u4e0e\u529f\u80fd\u3002<\/p>\n<p>\u672c\u6587\u5c06\u89e3\u91ca\u7528\u4f8b\u56fe\u7684\u5173\u952e\u6982\u5ff5\uff0c\u7279\u522b\u5173\u6ce8\u201c\u5305\u542b\u201d\u548c\u201c\u6269\u5c55\u201d\u5173\u7cfb\uff0c\u5e76\u901a\u8fc7\u516c\u544a\u677f\u7cfb\u7edf\uff08BBS\uff09\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u8fd9\u4e9b\u6982\u5ff5\u53ca\u5176\u5728\u9700\u6c42\u5efa\u6a21\u4e2d\u7684\u5b9e\u7528\u6027\u3002<\/p>\n<h2>\u7528\u4f8b\u56fe\u4e2d\u7684\u5173\u952e\u6982\u5ff5<\/h2>\n<p><img alt=\"Use Case Model: Bulletin Board System\" decoding=\"async\" src=\"https:\/\/online.visual-paradigm.com\/repository\/images\/b3387898-edd8-4801-b76d-16c753a22ded\/use-case-diagram-design\/use-case-model-bulletin-board-system.png\"\/><\/p>\n<h3>1. \u53c2\u4e0e\u8005<\/h3>\n<ul>\n<li><strong>\u5b9a\u4e49\uff1a<\/strong>\u53c2\u4e0e\u8005\u4ee3\u8868\u4e0e\u7cfb\u7edf\u4ea4\u4e92\u7684\u7528\u6237\u6216\u5916\u90e8\u7cfb\u7edf\u3002<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>\u5728\u516c\u544a\u677f\u7cfb\u7edf\u4e2d\uff0c\u53c2\u4e0e\u8005\u662f\u201c\u6210\u5458\u201d\u3002<\/li>\n<\/ul>\n<h3>2. \u7528\u4f8b<\/h3>\n<ul>\n<li><strong>\u5b9a\u4e49\uff1a<\/strong>\u7528\u4f8b\u63cf\u8ff0\u53c2\u4e0e\u8005\u4e0e\u7cfb\u7edf\u4e4b\u95f4\u4e3a\u5b9e\u73b0\u7279\u5b9a\u76ee\u6807\u800c\u8fdb\u884c\u7684\u7279\u5b9a\u4ea4\u4e92\u3002<\/li>\n<li><strong>\u7ec4\u6210\u90e8\u5206\uff1a<\/strong>\u7528\u4f8b\u540d\u79f0\u3001\u7b80\u8981\u63cf\u8ff0\u3001\u6d89\u53ca\u7684\u53c2\u4e0e\u8005\u3001\u524d\u7f6e\u6761\u4ef6\u3001\u540e\u7f6e\u6761\u4ef6\u3001\u4e3b\u6210\u529f\u573a\u666f\u4ee5\u53ca\u66ff\u4ee3\u573a\u666f\u3002<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>\u5728BBS\u4e2d\uff0c\u7528\u4f8b\u5305\u62ec\u201c\u67e5\u770b\u516c\u544a\u677f\u5217\u8868\u201d\u3001\u201c\u67e5\u770b\u9879\u76ee\u5217\u8868\u201d\u3001\u201c\u67e5\u770b\u8be6\u7ec6\u5185\u5bb9\u201d\u3001\u201c\u4e0a\u4f20\u6d88\u606f\u201d\u3001\u201c\u4fee\u6539\u6d88\u606f\u201d\u3001\u201c\u5220\u9664\u6d88\u606f\u201d\u548c\u201c\u641c\u7d22\u6d88\u606f\u201d\u3002<\/li>\n<\/ul>\n<h3>3. \u7528\u4f8b\u56fe<\/h3>\n<ul>\n<li><strong>\u5b9a\u4e49\uff1a<\/strong>\u7528\u4f8b\u56fe\u662f\u53c2\u4e0e\u8005\u3001\u7528\u4f8b\u53ca\u5176\u5173\u7cfb\u7684\u53ef\u89c6\u5316\u8868\u793a\u3002<\/li>\n<li><strong>\u5143\u7d20\uff1a<\/strong>\u53c2\u4e0e\u8005\uff08\u7528\u5c0f\u4eba\u8868\u793a\uff09\u3001\u7528\u4f8b\uff08\u7528\u692d\u5706\u8868\u793a\uff09\u4ee5\u53ca\u5173\u7cfb\uff08\u7528\u7ebf\u6761\u8868\u793a\uff09\u3002<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>BBS\u7528\u4f8b\u56fe\u5c55\u793a\u4e86\u53c2\u4e0e\u8005\u201c\u6210\u5458\u201d\u4e0e\u516c\u544a\u677f\u4e0a\u6d88\u606f\u7ba1\u7406\u4e0e\u67e5\u770b\u76f8\u5173\u7684\u4e00\u7cfb\u5217\u7528\u4f8b\u4e4b\u95f4\u7684\u4ea4\u4e92\u3002<\/li>\n<\/ul>\n<h3>4. \u5173\u7cfb<\/h3>\n<ul>\n<li><strong>\u7c7b\u578b\uff1a<\/strong>\n<ul>\n<li><strong>\u5173\u8054\uff1a<\/strong>\u8fde\u63a5\u53c2\u4e0e\u8005\u4e0e\u7528\u4f8b\u7684\u4e00\u6761\u7ebf\uff0c\u8868\u793a\u8be5\u53c2\u4e0e\u8005\u53c2\u4e0e\u8be5\u7528\u4f8b\u3002<\/li>\n<li><strong>\u5305\u542b\uff1a<\/strong>\u4e00\u79cd\u7528\u4f8b\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5176\u4e2d\u4e00\u4e2a\u7528\u4f8b\u5305\u542b\u53e6\u4e00\u4e2a\u7528\u4f8b\u7684\u884c\u4e3a\u3002<\/li>\n<li><strong>\u6269\u5c55\uff1a<\/strong>\u4e00\u79cd\u7528\u4f8b\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5176\u4e2d\u4e00\u4e2a\u7528\u4f8b\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u6269\u5c55\u53e6\u4e00\u4e2a\u7528\u4f8b\u7684\u884c\u4e3a\u3002<\/li>\n<li><strong>\u6cdb\u5316\uff1a<\/strong>\u4e00\u79cd\u53c2\u4e0e\u8005\u6216\u7528\u4f8b\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5176\u4e2d\u4e00\u4e2a\u53c2\u4e0e\u8005\u6216\u7528\u4f8b\u662f\u53e6\u4e00\u4e2a\u7684\u7279\u5316\u7248\u672c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5305\u542b\u5173\u7cfb<\/h2>\n<h3>\u5b9a\u4e49<\/h3>\n<p>\u8be5<a href=\"https:\/\/blog.visual-paradigm.com\/include-and-extend-use-cases\/\">\u201c\u5305\u542b\u201d\u5173\u7cfb<\/a>\u5728\u67d0\u4e2a\u7528\u4f8b\u5305\u542b\u53e6\u4e00\u4e2a\u7528\u4f8b\u7684\u884c\u4e3a\u65f6\u4f7f\u7528\u3002\u5b83\u8868\u660e\u88ab\u5305\u542b\u7684\u7528\u4f8b\u662f\u57fa\u7840\u7528\u4f8b\u7684\u5fc5\u8981\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n<h3>BBS\u4e2d\u7684\u793a\u4f8b<\/h3>\n<p>\u5728\u516c\u544a\u677f\u7cfb\u7edf\u4e2d\uff0c\u7528\u4f8b\u201c\u4e0a\u4f20\u6d88\u606f\u201d\u3001\u201c\u4fee\u6539\u6d88\u606f\u201d\u3001\u201c\u5220\u9664\u6d88\u606f\u201d\u548c\u201c\u641c\u7d22\u6d88\u606f\u201d\u90fd\u5305\u542b\u201c\u767b\u5f55\u201d\u7528\u4f8b\u3002\u8fd9\u610f\u5473\u7740\u8981\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c\u4e2d\u7684\u4efb\u4f55\u4e00\u9879\uff0c\u6210\u5458\u5fc5\u987b\u9996\u5148\u767b\u5f55\u7cfb\u7edf\u3002<\/p>\n<h3>\u7528\u9014<\/h3>\n<p>\u201c\u5305\u542b\u201d\u5173\u7cfb\u6709\u52a9\u4e8e\u7528\u4f8b\u7684\u6a21\u5757\u5316\u5e76\u907f\u514d\u5197\u4f59\u3002\u901a\u8fc7\u5305\u542b\u201c\u767b\u5f55\u201d\u7528\u4f8b\uff0c\u6211\u4eec\u786e\u4fdd\u767b\u5f55\u8fc7\u7a0b\u662f\u8fd9\u4e9b\u64cd\u4f5c\u7684\u5fc5\u8981\u6b65\u9aa4\uff0c\u800c\u65e0\u9700\u5728\u6bcf\u4e2a\u7528\u4f8b\u63cf\u8ff0\u4e2d\u91cd\u590d\u767b\u5f55\u6b65\u9aa4\u3002<\/p>\n<h2>\u6269\u5c55\u5173\u7cfb<\/h2>\n<h3>\u5b9a\u4e49<\/h3>\n<p>\u8be5<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/templates\/use-case-diagram\/include-and-extend-use-case-diagram\/\">\u201c\u6269\u5c55\u201d\u5173\u7cfb<\/a>\u5f53\u67d0\u4e2a\u7528\u4f8b\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u5411\u53e6\u4e00\u4e2a\u7528\u4f8b\u6dfb\u52a0\u884c\u4e3a\u65f6\u4f7f\u7528\u3002\u5b83\u8868\u660e\u6269\u5c55\u7528\u4f8b\u662f\u57fa\u7840\u7528\u4f8b\u7684\u53ef\u9009\u90e8\u5206\u3002<\/p>\n<h3>BBS\u4e2d\u7684\u793a\u4f8b<\/h3>\n<p>\u5728BBS\u4e2d\uff0c\u201c\u6269\u5c55\u201d\u5173\u7cfb\u7684\u4e00\u4e2a\u793a\u4f8b\u53ef\u80fd\u662f\u201c\u53d1\u9001\u901a\u77e5\u201d\u7528\u4f8b\uff0c\u5b83\u6269\u5c55\u4e86\u201c\u4e0a\u4f20\u6d88\u606f\u201d\u7528\u4f8b\u3002\u8fd9\u610f\u5473\u7740\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0b\uff0c\u4f8b\u5982\u5f53\u6d88\u606f\u88ab\u4e0a\u4f20\u65f6\uff0c\u53ef\u80fd\u4f1a\u5411\u5176\u4ed6\u6210\u5458\u53d1\u9001\u901a\u77e5\u3002<\/p>\n<h3>\u7528\u9014<\/h3>\n<p>\u201c\u6269\u5c55\u201d\u5173\u7cfb\u6709\u52a9\u4e8e\u6355\u6349\u53ef\u9009\u884c\u4e3a\u548c\u5f02\u5e38\u60c5\u51b5\u3002\u5b83\u5141\u8bb8\u5728\u4e0d\u4fee\u6539\u57fa\u7840\u7528\u4f8b\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u989d\u5916\u529f\u80fd\uff0c\u4f7f\u7cfb\u7edf\u66f4\u5177\u7075\u6d3b\u6027\u548c\u9002\u5e94\u4e0d\u540c\u573a\u666f\u7684\u80fd\u529b\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u7528\u4f8b\u56fe\u5bf9\u9700\u6c42\u5efa\u6a21\u6709\u7528<\/h2>\n<h3>1. \u7528\u6237\u4e2d\u5fc3\u65b9\u6cd5<\/h3>\n<p>\u7528\u4f8b\u56fe\u5173\u6ce8\u7528\u6237\u89c6\u89d2\uff0c\u786e\u4fdd\u7cfb\u7edf\u6ee1\u8db3\u7528\u6237\u7684\u9700\u6c42\u548c\u671f\u671b\u3002\u901a\u8fc7\u8bc6\u522b\u53c2\u4e0e\u8005\u53ca\u5176\u4e0e\u7cfb\u7edf\u7684\u4ea4\u4e92\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u8ba1\u51fa\u76f4\u89c2\u4e14\u7528\u6237\u53cb\u597d\u7684\u7cfb\u7edf\u3002<\/p>\n<h3>2. \u6e05\u6670\u7684\u9700\u6c42<\/h3>\n<p>\u7528\u4f8b\u56fe\u6709\u52a9\u4e8e\u4ee5\u6e05\u6670\u7b80\u6d01\u7684\u65b9\u5f0f\u6355\u6349\u548c\u8bb0\u5f55\u7cfb\u7edf\u7684\u529f\u80fd\u9700\u6c42\u3002\u6bcf\u4e2a\u7528\u4f8b\u4ee3\u8868\u4e00\u4e2a\u5177\u4f53\u76ee\u6807\u6216\u529f\u80fd\uff0c\u4f7f\u7cfb\u7edf\u9700\u6c42\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u7ba1\u7406\u3002<\/p>\n<h3>3. \u6c9f\u901a\u5de5\u5177<\/h3>\n<p>\u7528\u4f8b\u56fe\u4f5c\u4e3a\u5229\u76ca\u76f8\u5173\u8005\u3001\u5f00\u53d1\u4eba\u5458\u548c\u7528\u6237\u4e4b\u95f4\u7684\u6c9f\u901a\u5de5\u5177\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u7cfb\u7edf\u529f\u80fd\u7684\u53ef\u89c6\u5316\u8868\u793a\uff0c\u786e\u4fdd\u5404\u65b9\u5bf9\u7cfb\u7edf\u7684\u884c\u4e3a\u548c\u9700\u6c42\u6709\u5171\u540c\u7684\u7406\u89e3\u3002<\/p>\n<h3>4. \u8bc6\u522b\u5dee\u8ddd<\/h3>\n<p>\u901a\u8fc7\u5206\u6790\u7528\u4f8b\uff0c\u53ef\u4ee5\u5728\u5f00\u53d1\u8fc7\u7a0b\u7684\u65e9\u671f\u8bc6\u522b\u51fa\u7cfb\u7edf\u9700\u6c42\u4e2d\u7684\u6f5c\u5728\u5dee\u8ddd\u548c\u4e0d\u4e00\u81f4\u4e4b\u5904\uff0c\u5e76\u52a0\u4ee5\u89e3\u51b3\u3002\u8fd9\u6709\u52a9\u4e8e\u6784\u5efa\u66f4\u52a0\u7a33\u5065\u548c\u53ef\u9760\u7684\u7cfb\u7edf\u3002<\/p>\n<h3>5. \u6d4b\u8bd5\u7528\u4f8b<\/h3>\n<p><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/use-case-diagram-software\/\">\u7528\u4f8b<\/a>\u53ef\u4ee5\u7528\u6765\u63a8\u5bfc\u51fa\u6d4b\u8bd5\u7528\u4f8b\uff0c\u786e\u4fdd\u7cfb\u7edf\u5f97\u5230\u5145\u5206\u6d4b\u8bd5\u5e76\u6ee1\u8db3\u6307\u5b9a\u7684\u8981\u6c42\u3002\u6bcf\u4e2a\u7528\u4f8b\u53ef\u4ee5\u8f6c\u5316\u4e3a\u4e00\u4e2a\u6216\u591a\u4e2a\u6d4b\u8bd5\u7528\u4f8b\uff0c\u6db5\u76d6\u4e3b\u8981\u6210\u529f\u573a\u666f\u548c\u66ff\u4ee3\u573a\u666f\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u7528\u4f8b\u56fe\u662f\u4e00\u79cd<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/use-case-diagram-software\/\">\u5f3a\u5927\u5de5\u5177<\/a>\u7528\u4e8e\u4ece\u7528\u6237\u7684\u89d2\u5ea6\u7406\u89e3\u3001\u6355\u83b7\u548c\u8bb0\u5f55\u7cfb\u7edf\u529f\u80fd\u9700\u6c42\u3002\u901a\u8fc7\u8bc6\u522b\u53c2\u4e0e\u8005\u3001\u63cf\u8ff0\u7528\u4f8b\u3001\u521b\u5efa\u7528\u4f8b\u56fe\u5e76\u5206\u6790\u7528\u4f8b\uff0c\u5f00\u53d1\u4eba\u5458\u548c\u5229\u76ca\u76f8\u5173\u8005\u53ef\u4ee5\u786e\u4fdd\u7cfb\u7edf\u6ee1\u8db3\u7528\u6237\u9700\u6c42\u5e76\u63d0\u4f9b\u6240\u9700\u529f\u80fd\u3002\u7528\u4f8b\u56fe\u4e2d\u7684\u201c\u5305\u542b\u201d\u548c\u201c\u6269\u5c55\u201d\u5173\u7cfb\u6709\u52a9\u4e8e\u6a21\u5757\u5316\u7528\u4f8b\uff0c\u907f\u514d\u5197\u4f59\uff0c\u5e76\u6355\u6349\u53ef\u9009\u884c\u4e3a\u548c\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<p>\u5bf9\u4e8e\u5e0c\u671b\u521b\u5efa\u7528\u4f8b\u56fe\u53ca\u5176\u4ed6\u7cfb\u7edf\u53ef\u89c6\u5316\u8868\u793a\u7684\u7ec4\u7ec7\u800c\u8a00\uff0c\u50cf<a 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