{"id":9401,"date":"2025-12-02T17:50:17","date_gmt":"2025-12-02T09:50:17","guid":{"rendered":"https:\/\/www.cybermedian.com\/ja\/uml-use-case-diagram-capturing-functional-requirements-and-user-system-interactions\/"},"modified":"2026-04-14T10:57:47","modified_gmt":"2026-04-14T10:57:47","slug":"uml-use-case-diagram-capturing-functional-requirements-and-user-system-interactions","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/ja\/uml-use-case-diagram-capturing-functional-requirements-and-user-system-interactions\/","title":{"rendered":"UML\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff1a\u6a5f\u80fd\u8981\u4ef6\u3068\u30e6\u30fc\u30b6\u30fc\u30fb\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u306e\u628a\u63e1"},"content":{"rendered":"<p>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306f\u3001<a href=\"https:\/\/www.cybermedian.com\/what-is-uml-and-why-does-it-still-important\/\">\u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08UML\uff09<\/a>\u306b\u304a\u3051\u308b\u884c\u52d5\u56f3\u3067\u3042\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u610f\u56f3\u3059\u308b\u6a5f\u80fd\u306e\u9ad8\u30ec\u30d9\u30eb\u3067\u30b0\u30e9\u30d5\u30a3\u30ab\u30eb\u306a\u8996\u70b9\u3092\u63d0\u4f9b\u3059\u308b\u3002\u305d\u308c\u306f<em>\u4f55\u3092<\/em>\u30b7\u30b9\u30c6\u30e0\u304c\u884c\u3046\u304b\u3092\u3001\u30e6\u30fc\u30b6\u30fc\uff08\u30a2\u30af\u30bf\u30fc\uff09\u3068\u305d\u308c\u3089\u304c\u5b9f\u884c\u3059\u308b\u6a5f\u80fd\uff08\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\uff09\u306e\u95a2\u4fc2\u3092\u793a\u3059\u3053\u3068\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<p><img alt=\"use case diagram example\" class=\"alignnone size-full wp-image-14272\" decoding=\"async\" height=\"468\" loading=\"lazy\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-Case-Diagram-Example.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-Case-Diagram-Example.png 566w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-Case-Diagram-Example-300x248.png 300w\" width=\"566\"\/><\/p>\n<p>\u3053\u306e\u56f3\u306f\u3001\u8981\u4ef6\u53ce\u96c6\u304a\u3088\u3073\u5206\u6790\u6bb5\u968e\u306b\u304a\u3044\u3066\u6975\u3081\u3066\u91cd\u8981\u3067\u3042\u308a\u3001\u30d3\u30b8\u30cd\u30b9\u306e\u89b3\u70b9\u304b\u3089\u30b7\u30b9\u30c6\u30e0\u306e\u5883\u754c\u3068\u7bc4\u56f2\u3092\u660e\u78ba\u306b\u3059\u308b\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n<h2>1. \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4e3b\u8981\u306a\u8981\u7d20<\/h2>\n<p>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306f\u3001\u308f\u305a\u304b\u306a\u57fa\u672c\u7684\u306a\u8981\u7d20\u306e\u307f\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u8aad\u3080\u3053\u3068\u3084\u4f5c\u6210\u3059\u308b\u3053\u3068\u306b\u304a\u3044\u3066UML\u56f3\u306e\u4e2d\u3067\u3082\u6700\u3082\u7c21\u5358\u306a\u3082\u306e\u306e\u4e00\u3064\u3067\u3042\u308b\u3002<\/p>\n<h3>A. \u30b7\u30b9\u30c6\u30e0\u5883\u754c<\/h3>\n<p><img alt=\"system boundary of use case diagram\" class=\"alignnone size-full wp-image-14274\" decoding=\"async\" height=\"347\" loading=\"lazy\" sizes=\"auto, (max-width: 534px) 100vw, 534px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-System-Boundary.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-System-Boundary.png 534w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-System-Boundary-300x195.png 300w\" width=\"534\"\/><\/p>\n<p>\u30b7\u30b9\u30c6\u30e0\u5883\u754c\u306f\u3001\u691c\u8a0e\u4e2d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u7bc4\u56f2\u3092\u8996\u899a\u7684\u306b\u5b9a\u7fa9\u3059\u308b\u77e9\u5f62\u3067\u3042\u308b\u3002\u7bb1\u306e\u4e2d\u306b\u3042\u308b\u3059\u3079\u3066\u304c\u30b7\u30b9\u30c6\u30e0\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u7bb1\u306e\u5916\u306b\u3042\u308b\u3059\u3079\u3066\u306f\u5916\u90e8\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong>\u5927\u304d\u306a\u77e9\u5f62\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong>\u30b7\u30b9\u30c6\u30e0\u306e\u8cac\u4efb\u3068\u305d\u308c\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u5916\u90e8\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff08\u30a2\u30af\u30bf\u30fc\uff09\u306e\u8cac\u4efb\u3092\u660e\u78ba\u306b\u5206\u3051\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n<h3>B. \u30a2\u30af\u30bf\u30fc<\/h3>\n<p><img alt=\"actor of use case diagram\" class=\"alignnone size-full wp-image-14275\" decoding=\"async\" height=\"347\" loading=\"lazy\" sizes=\"auto, (max-width: 534px) 100vw, 534px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-actor.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-actor.png 534w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-actor-300x195.png 300w\" width=\"534\"\/><\/p>\n<p>\u30a2\u30af\u30bf\u30fc\u306f\u3001\u76ee\u7684\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u30b7\u30b9\u30c6\u30e0\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u3001\u30b7\u30b9\u30c6\u30e0\u5916\u90e8\u306e\u4efb\u610f\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u8868\u3059\u3002\u30a2\u30af\u30bf\u30fc\u306f<strong>\u5fc5\u305a\u3057\u3082<\/strong>\u4eba\u9593\u3067\u3042\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u5225\u306e\u30b7\u30b9\u30c6\u30e0\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30c7\u30d0\u30a4\u30b9\u3001\u3042\u308b\u3044\u306f\u7279\u5b9a\u306e\u6642\u9593\u30a4\u30d9\u30f3\u30c8\u3067\u3042\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong>\u5f79\u5272\u540d\u304c\u30e9\u30d9\u30eb\u3055\u308c\u305f\u68d2\u4eba\u9593\u3002<\/li>\n<li><strong>\u5b9a\u7fa9\uff1a<\/strong>\u30a2\u30af\u30bf\u30fc\u306f<em>\u5f79\u5272<\/em>\u7279\u5b9a\u306e\u4eba\u7269\u3067\u306f\u306a\u304f\u3001\u5f79\u5272\u3067\u3042\u308b\u3002\u305f\u3068\u3048\u3070\u3001\u300c\u9867\u5ba2\u300d\u306f\u30a2\u30af\u30bf\u30fc\u3067\u3042\u308b\u304c\u3001\u300cJane Doe\u300d\u306f\u305d\u306e\u5f79\u5272\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3042\u308b\u3002<\/li>\n<li><strong>\u30a2\u30af\u30bf\u30fc\u306e\u7a2e\u985e\uff1a<\/strong>\n<ul>\n<li><strong>\u4e3b\u8981\u30a2\u30af\u30bf\u30fc\uff1a<\/strong>\u76ee\u7684\u306e\u9054\u6210\u306e\u305f\u3081\u306b\u3084\u308a\u53d6\u308a\u3092\u958b\u59cb\u3059\u308b\uff08\u4f8b\uff1a<em>\u9867\u5ba2<\/em>\u8cfc\u5165\u3092\u958b\u59cb\u3059\u308b\uff09\u3002<\/li>\n<li><strong>\u88dc\u52a9\u30a2\u30af\u30bf\u30fc\uff1a<\/strong> \u30b7\u30b9\u30c6\u30e0\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\uff08\u4f8b\uff1a<em>\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/em>).<\/li>\n<li><strong>\u53d7\u52d5\u7684\u30a2\u30af\u30bf\u30fc\uff1a<\/strong> \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u304c\u3001\u305d\u308c\u3092\u958b\u59cb\u3057\u306a\u3044\uff08\u4f8b\uff1a<em>\u5009\u5eab\u30b7\u30b9\u30c6\u30e0<\/em> \u8377\u7269\u5230\u7740\u901a\u77e5\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C. \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h3>\n<p><img alt=\"use cases of use case diagram\" class=\"alignnone size-full wp-image-14276\" decoding=\"async\" height=\"347\" loading=\"lazy\" sizes=\"auto, (max-width: 534px) 100vw, 534px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-use-case.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-use-case.png 534w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-use-case-300x195.png 300w\" width=\"534\"\/><\/p>\n<p>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u3001\u5358\u4e00\u3067\u5b8c\u5168\u306a\u6a5f\u80fd\u8981\u4ef6\u3001\u307e\u305f\u306f\u30a2\u30af\u30bf\u30fc\u306b\u6e2c\u5b9a\u53ef\u80fd\u306a\u4fa1\u5024\u3092\u3082\u305f\u3089\u3059\u4e00\u9023\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8868\u3059\u3002\u5358\u7d14\u3067\u80fd\u52d5\u7684\u306a\u52d5\u8a5e\u3084\u540d\u8a5e\u3067\u8868\u73fe\u3059\u308b\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong> \u30b7\u30b9\u30c6\u30e0\u5883\u754c\u5185\u306b\u914d\u7f6e\u3055\u308c\u305f\u6955\u5186\u3002<\/li>\n<li><strong>\u4f8b\uff1a<\/strong> <em>\u6ce8\u6587\u3092\u63d0\u51fa\u3059\u308b<\/em>, <em>\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3059\u308b<\/em>, <em>\u8fd4\u91d1\u3092\u51e6\u7406\u3059\u308b<\/em>, <em>\u30ec\u30dd\u30fc\u30c8\u3092\u751f\u6210\u3059\u308b<\/em>.<\/li>\n<li><strong>\u91cd\u8981\u306a\u30eb\u30fc\u30eb\uff1a<\/strong> \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u5e38\u306b\u30a2\u30af\u30bf\u30fc\u306b\u3088\u3063\u3066\u958b\u59cb\u3055\u308c\u30011\u4eba\u4ee5\u4e0a\u306e\u30a2\u30af\u30bf\u30fc\u306b\u4fa1\u5024\u3042\u308b\u6210\u679c\u3092\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n<h2>2. \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306b\u304a\u3051\u308b\u95a2\u4fc2<\/h2>\n<p>\u95a2\u4fc2\u306f\u30a2\u30af\u30bf\u30fc\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u7d50\u3073\u3064\u3051\u3001\u307e\u305f\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u540c\u58eb\u3092\u7d50\u3073\u3064\u3051\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u6027\u3068\u30d5\u30ed\u30fc\u8ad6\u7406\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<h3>A. \u901a\u4fe1\u95a2\u9023<\/h3>\n<p>\u3053\u308c\u306f\u6700\u3082\u5358\u7d14\u3067\u4e00\u822c\u7684\u306a\u95a2\u4fc2\u3067\u3042\u308a\u3001\u30a2\u30af\u30bf\u30fc\u304c\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u53c2\u52a0\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong> \u30a2\u30af\u30bf\u30fc\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u6955\u5186\u3092\u7d50\u3076\u5b9f\u7dda\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u3069\u306e\u95a2\u6570\u304c\u3069\u306e\u30ed\u30fc\u30eb\u306b\u3088\u3063\u3066\u958b\u59cb\u307e\u305f\u306f\u4f7f\u7528\u3055\u308c\u308b\u304b\u3092\u793a\u3059\u3002<\/li>\n<\/ul>\n<h3>B. \u5305\u542b\u95a2\u4fc2\uff08<code>&lt;&lt;include&gt;&gt;<\/code>)<\/h3>\n<p>\u3053\u306e<code>include<\/code>\u3042\u308bUse Case\u304c\u5225\u306eUse Case\u306e\u6a5f\u80fd\u3092\u5e38\u306b\u7d44\u307f\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u542b\u307e\u308c\u308bUse Case\u306f\u3001\u30d9\u30fc\u30b9Use Case\u304c\u305d\u306e\u6a5f\u80fd\u3092\u5b8c\u4e86\u3059\u308b\u305f\u3081\u306b\u5fc5\u9808\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong> \u62e1\u5f35\u3059\u308bUse Case\u304b\u3089<strong>\u30d9\u30fc\u30b9Use Case<\/strong> \u306b\u5411\u3051\u305f\u70b9\u7dda\u77e2\u5370<strong>\u542b\u307e\u308c\u308bUse Case<\/strong> \u306b\u300c<code>&lt;&lt;include&gt;&gt;<\/code>.<\/li>\n<li><strong>\u4f7f\u7528\u6cd5\uff1a<\/strong>\u8907\u6570\u306eUse Case\u304b\u3089\u5171\u901a\u306e\u632f\u308b\u821e\u3044\u3092\u62bd\u51fa\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u3002\n<ul>\n<li><em>\u4f8b\uff1a<\/em> <em>\u6ce8\u6587\u3092\u63d0\u51fa<\/em> <strong>\u306f\u542b\u3080<\/strong> <em>\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c<\/em>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C. \u62e1\u5f35\u95a2\u4fc2\uff08<code>&lt;&lt;extend&gt;&gt;<\/code>)<\/h3>\n<p>\u3053\u306e<code>extend<\/code>\u7279\u5b9a\u306eUse Case\uff08\u62e1\u5f35\u3059\u308b\u65b9\uff09\u304c\u3001\u5225\u306eUse Case\uff08\u30d9\u30fc\u30b9\u65b9\uff09\u306b\u30aa\u30d7\u30b7\u30e7\u30f3\u307e\u305f\u306f\u6761\u4ef6\u4ed8\u304d\u306e\u632f\u308b\u821e\u3044\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong> \u62e1\u5f35\u3059\u308bUse Case\u304b\u3089<strong>\u62e1\u5f35\u3055\u308c\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/strong>\u306b<strong>\u30d9\u30fc\u30b9\u3068\u306a\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/strong>\u3001\u30e9\u30d9\u30eb\u306f<code>&lt;&lt;extend&gt;&gt;<\/code>.<\/li>\n<li><strong>\u4f7f\u7528\u6cd5\uff1a<\/strong>\u4ee3\u66ff\u7684\u3001\u4f8b\u5916\u7684\u3001\u307e\u305f\u306f\u7279\u6b8a\u306a\u52d5\u4f5c\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3002\u62e1\u5f35\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u305f\u5834\u5408\u306b\u306e\u307f\u767a\u751f\u3059\u308b\u3002\n<ul>\n<li><em>\u4f8b\uff1a<\/em> <em>\u652f\u6255\u3044\u51e6\u7406<\/em>\u306f\u30d9\u30fc\u30b9\u3068\u306a\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3067\u3042\u308a\u3001<em>\u30ed\u30a4\u30e4\u30eb\u30c6\u30a3\u5272\u5f15\u306e\u9069\u7528<\/em> <strong>\u306f\u62e1\u5f35\u3059\u308b<\/strong> <em>\u652f\u6255\u3044\u51e6\u7406<\/em>\u4ee5\u4e0b\u306e\u6761\u4ef6\u4e0b\u3067<code>[\u30ed\u30a4\u30e4\u30eb\u30c6\u30a3\u30b9\u30c6\u30fc\u30bf\u30b9\u304c\u30b4\u30fc\u30eb\u30c9\u306e\u5834\u5408]<\/code>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>D. \u6c4e\u5316\u95a2\u4fc2\uff08\u7d99\u627f\uff09<\/h3>\n<p>\u3053\u306e\u95a2\u4fc2\u306f\u3001\u3042\u308b\u30a2\u30af\u30bf\u30fc\u307e\u305f\u306f\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u5225\u306e\u3082\u306e\u306b\u5bfe\u3059\u308b\u7279\u6b8a\u5316\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8868\u8a18\u6cd5\uff1a<\/strong>\u7279\u6b8a\u5316\u3055\u308c\u305f\u8981\u7d20\u304b\u3089\u3088\u308a\u4e00\u822c\u7684\u306a\u8981\u7d20\u3078\u5411\u304b\u3046\u3001\u7a7a\u6d1e\u306e\u4e09\u89d2\u5f62\u77e2\u5370\u982d\u3092\u5099\u3048\u305f\u5b9f\u7dda\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6cd5\uff1a<\/strong>\n<ul>\n<li><strong>\u30a2\u30af\u30bf\u30fc\uff1a<\/strong> <em>\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005<\/em>\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u306b\u5bfe\u3059\u308b\u6c4e\u5316\u3067\u3042\u308b<em>\u767b\u9332\u30e6\u30fc\u30b6\u30fc<\/em>.<\/li>\n<li><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\uff1a<\/strong> <em>\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u306b\u3088\u308b\u652f\u6255\u3044<\/em>\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u306b\u5bfe\u3059\u308b\u6c4e\u5316\u3067\u3042\u308b<em>\u652f\u6255\u3044\u51e6\u7406<\/em>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>3. \u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u4f8b\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/h2>\n<p>\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u30b3\u30a2\u6a5f\u80fd\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3068\u60f3\u50cf\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u8981\u7d20<\/th>\n<th>\u7a2e\u985e<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<tr>\n<td><strong>\u5b66\u751f<\/strong><\/td>\n<td>\u30a2\u30af\u30bf\u30fc<\/td>\n<td>\u4e3b\u306a\u30e6\u30fc\u30b6\u30fc\u5f79\u5272\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8b1b\u5e2b<\/strong><\/td>\n<td>\u30a2\u30af\u30bf\u30fc<\/td>\n<td>\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4f5c\u6210\u304a\u3088\u3073\u7ba1\u7406\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b\u3059\u308b<\/strong><\/td>\n<td>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/td>\n<td>\u5b66\u751f\u306e\u4e3b\u306a\u6a5f\u80fd\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9032\u6357\u3092\u78ba\u8a8d\u3059\u308b<\/strong><\/td>\n<td>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/td>\n<td>\u5b66\u751f\u306b\u3068\u3063\u3066\u4fa1\u5024\u306e\u3042\u308b\u6a5f\u80fd\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c<\/strong><\/td>\n<td>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/td>\n<td>\u4e21\u65b9\u306e\u30a2\u30af\u30bf\u30fc\u306b\u3068\u3063\u3066\u5171\u901a\u3067\u5fc5\u9808\u306e\u30b9\u30c6\u30c3\u30d7\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30b3\u30fc\u30b9\u3092\u4f5c\u6210\u3059\u308b<\/strong><\/td>\n<td>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/td>\n<td>\u8b1b\u5e2b\u306e\u4e3b\u306a\u6a5f\u80fd\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4fee\u4e86\u8a3c\u660e\u66f8\u3092\u751f\u6210\u3059\u308b<\/strong><\/td>\n<td>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/td>\n<td>\u62e1\u5f35\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u6a5f\u80fd<em>\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b\u3059\u308b<\/em>.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u30d5\u30ed\u30fc\u306e\u30e2\u30c7\u30ea\u30f3\u30b0<\/h3>\n<ol>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u5883\u754c\uff1a<\/strong>\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u56f2\u3080\u5927\u304d\u306a\u30dc\u30c3\u30af\u30b9\u3092\u63cf\u304f\u3002<\/li>\n<li><strong>\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\uff1a<\/strong>\u914d\u7f6e\u3059\u308b<strong>\u5b66\u751f<\/strong>\u304a\u3088\u3073<strong>\u6559\u54e1<\/strong>\u30a2\u30af\u30bf\u30fc\u3092\u30dc\u30c3\u30af\u30b9\u306e\u5916\u306b\u914d\u7f6e\u3059\u308b\u3002<\/li>\n<li><strong>\u901a\u4fe1\uff1a<\/strong>\u63a5\u7d9a\u3059\u308b<strong>\u5b66\u751f<\/strong>\u306b<em>\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b<\/em>\u304a\u3088\u3073<em>\u9032\u6357\u3092\u78ba\u8a8d<\/em>\u3002\u63a5\u7d9a\u3059\u308b<strong>\u6559\u54e1<\/strong>\u306b<em>\u30b3\u30fc\u30b9\u3092\u4f5c\u6210<\/em>.<\/li>\n<li><strong>\u5305\u542b\uff1a<\/strong> <em>\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b<\/em>\u304a\u3088\u3073<em>\u30b3\u30fc\u30b9\u3092\u4f5c\u6210<\/em>\u4e21\u65b9\u3068\u3082<em>\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c<\/em>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b<code>&lt;&lt;include&gt;&gt;<\/code>\u306e\u77e2\u5370\u3092\u63a5\u7d9a\u3059\u308b\u3002\u30ed\u30b0\u30a4\u30f3\u306f\u4e21\u8005\u306b\u3068\u3063\u3066\u5fc5\u9808\u3067\u3042\u308b\u305f\u3081\u3002<\/li>\n<li><strong>\u62e1\u5f35\uff1a<\/strong>  <em>\u4fee\u4e86\u8a3c\u660e\u66f8\u306e\u751f\u6210<\/em> \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f \u306b\u63a5\u7d9a\u3057\u3066\u3044\u307e\u3059<em>\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b\u3059\u308b<\/em> \u3068<code>&lt;&lt;\u62e1\u5f35&gt;&gt;<\/code> \u77e2\u5370\u306f\u3001\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u305f\u5834\u5408\u306b\u306e\u307f\u767a\u751f\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059<code>[\u30b3\u30fc\u30b9\u304c100\uff05\u5b8c\u4e86\u3057\u305f\u5f8c]<\/code>.<\/li>\n<\/ol>\n<p><img alt=\"use case diagram example of Online Learning Platform\" class=\"alignnone size-full wp-image-14278\" decoding=\"async\" height=\"388\" loading=\"lazy\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-diagram-example-1.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-diagram-example-1.png 559w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2025\/12\/Use-case-diagram-example-1-300x208.png 300w\" width=\"559\"\/><\/p>\n<h2>\u6982\u8981<\/h2>\n<p>UML\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306f\u3001\u5f37\u529b\u304b\u3064\u30b7\u30f3\u30d7\u30eb\u306a\u30e2\u30c7\u30eb\u5316\u30c4\u30fc\u30eb\u3067\u3042\u308a\u3001<strong>\u6a5f\u80fd\u8981\u4ef6<\/strong> \u304a\u3088\u3073<strong>\u30e6\u30fc\u30b6\u30fc\u306e\u8996\u70b9<\/strong>\u3002\u30a2\u30af\u30bf\u30fc\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3001\u30b7\u30b9\u30c6\u30e0\u5883\u754c\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u30d3\u30b8\u30cd\u30b9\u30a2\u30ca\u30ea\u30b9\u30c8\u304b\u3089\u958b\u767a\u8005\u306b\u81f3\u308b\u307e\u3067\u3001\u3059\u3079\u3066\u306e\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u3001<em>\u4f55<\/em>\u30b7\u30b9\u30c6\u30e0\u304c\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u76ee\u7684\u3092\u5171\u6709\u3057\u3001\u660e\u78ba\u306b\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306a\u3069\u306e\u3088\u308a\u8a73\u7d30\u306a\u884c\u52d5\u30e2\u30c7\u30eb\u306e\u51fa\u767a\u70b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>UML\u306b\u3064\u3044\u3066\u306e\u88dc\u8db3\u60c5\u5831\u304a\u3088\u3073AI\u304c\u3069\u306e\u3088\u3046\u306b\u53ef\u8996\u5316\u3092\u652f\u63f4\u3059\u308b\u304b\u306b\u3064\u3044\u3066\u306f\u3001\u79c1\u305f\u3061\u306e<a href=\"https:\/\/www.cybermedian.com\/the-definitive-guide-to-the-unified-modeling-language-uml\/\">UML\u30ea\u30bd\u30fc\u30b9\u30cf\u30d6<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306f\u3001\u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08U<\/p>\n","protected":false},"author":5,"featured_media":9402,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u6a5f\u80fd\u8981\u4ef6\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306bUML\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u30b7\u30b9\u30c6\u30e0\u5883\u754c\u3001\u30a2\u30af\u30bf\u30fc\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3001\u95a2\u4fc2\u6027\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002","_yoast_wpseo_metadesc":"Learn the UML Use Case Diagram to capture functional requirements. Define system boundaries, actors, use cases, and relationships.","footnotes":""},"categories":[3],"tags":[],"class_list":["post-9401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6a5f\u80fd\u8981\u4ef6\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306bUML\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u30b7\u30b9\u30c6\u30e0\u5883\u754c\u3001\u30a2\u30af\u30bf\u30fc\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3001\u95a2\u4fc2\u6027\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/title>\n<meta name=\"description\" content=\"Learn the UML Use Case Diagram to capture functional requirements. 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