{"id":3481,"date":"2022-02-09T17:13:56","date_gmt":"2022-02-09T09:13:56","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/ja\/?p=3481"},"modified":"2022-11-25T17:25:42","modified_gmt":"2022-11-25T09:25:42","slug":"include-and-extend-use-cases","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/ja\/include-and-extend-use-cases\/","title":{"rendered":"\u300c\u542b\u3081\u308b\u300d\u304a\u3088\u3073\u300c\u62e1\u5f35\u3059\u308b\u300d\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9"},"content":{"rendered":"<article class=\"post-entry post-entry-type-standard post-entry-3481 post-loop-1 post-parity-odd post-entry-last single-big with-slider post-3481 post type-post status-publish format-standard has-post-thumbnail hentry category-uml\">\n<div class=\"entry-content-wrapper clearfix standard-content\">\n<div class=\"entry-content\">\n<p><a href=\"http:\/\/the%20document%20management%20system%20%28dms%29%20use%20case%20diagram%20below%20shows%20the%20actors%20and%20use%20cases%20of%20the%20system.%20in%20particular%2C%20there%20are%20containment%20and%20extension%20relationships%20between%20use%20cases.\/\"><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/span><\/a><span>\u306f\u3001\u7279\u5b9a\u306e\u76ee\u6a19\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u30e6\u30fc\u30b6\u30fc\u304c\u30b7\u30b9\u30c6\u30e0\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3059\u308b\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u3001\u95a2\u9023\u3059\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3001\u304a\u3088\u3073\u30a2\u30af\u30bf\u30fc\u3067\u69cb\u6210\u3055\u308c\u3001\u3053\u308c\u3089\u3092\u76f8\u4e92\u306b\u95a2\u9023\u4ed8\u3051\u3066\u8996\u899a\u5316\u3057\u307e\u3059\u3002\u4f55\u304c\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u304b?\u00a0(<\/span><strong><span>\u30b7\u30b9\u30c6\u30e0<\/span><\/strong><span>)\u3001\u8ab0\u304c\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304b?\u00a0(<\/span><strong><span>\u30a2\u30af\u30bf\u30fc<\/span><\/strong><span>) \u30a2\u30af\u30bf\u30fc\u306f\u4f55\u3092\u9054\u6210\u3057\u305f\u3044\u3067\u3059\u304b?\u00a0(<\/span><strong><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9<\/span><\/strong><span>) \u3057\u305f\u304c\u3063\u3066\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u8996\u70b9\u304b\u3089\u8981\u4ef6\u3092\u6349\u3048\u308b\u3053\u3068\u3067\u3001\u6b63\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u958b\u767a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/span><\/p>\n<h3><img decoding=\"async\" id=\"thepasted-1\" class=\"center-img template-thumbnail\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/include-and-extend-use-case-diagram.png\" alt=\"\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0 \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u542b\u3081\u3066\u62e1\u5f35\u3059\u308b (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0 \u30e1\u30fc\u30ab\u30fc\u306b\u3088\u3063\u3066\u4f5c\u6210\u3055\u308c\u305f)\" \/><\/h3>\n<h2 id=\"structuring-use-cases\"><span id=\"Structuring_Use_Cases\"><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u69cb\u9020\u5316<\/span><\/span><\/h2>\n<p><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u95a2\u4fc2\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u76f8\u4e92\u4f5c\u7528\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u9593\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u72ec\u7acb\u3057\u305f\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u3001\u3088\u308a\u5358\u7d14\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u9069\u5207\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u3084\u5927\u898f\u6a21\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u8868\u73fe\u3059\u308b\u306b\u306f\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u9593\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u5229\u7528\u3057\u3066\u8907\u96d1\u306a\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3092\u69cb\u7bc9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u9593\u306e\u95a2\u4fc2\u3092\u78ba\u7acb\u3059\u308b\u3068\u3001\u4f55\u5ea6\u3082\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u518d\u5229\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u958b\u767a\u8005\u306e\u52b4\u529b\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span>UML \u3067\u306f\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u95a2\u9023\u4ed8\u3051\u3092\u69cb\u9020\u5316\u3059\u308b\u305f\u3081\u306e 3 \u3064\u306e\u30b9\u30c6\u30ec\u30aa\u30bf\u30a4\u30d7\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h3><span id=\"What_is_a_Include_Use_Case\"><span>&lt;&lt;Include&gt;&gt; \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u306f?<\/span><\/span><\/h3>\n<p><span>\u62e1\u5f35\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306f\u3001\u4e8b\u5b9f\u4e0a\u3001\u57fa\u672c\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u4ee3\u66ff\u30b3\u30fc\u30b9\u3067\u3059\u3002&lt;&lt;extend&gt;&gt; \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306f\u3001\u8ffd\u52a0\u306e\u30a2\u30af\u30b7\u30e7\u30f3 \u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u57fa\u672c\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30b7\u30fc\u30b1\u30f3\u30b9\u306b\u6982\u5ff5\u7684\u306b\u633f\u5165\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3053\u308c\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span>&lt;&lt;include&gt;&gt; \u95a2\u4fc2\u3092\u4f7f\u7528\u3059\u308b\u306e\u306f\u3001\u3059\u3079\u3066\u306e\u4e3b\u8981\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u6700\u521d\u306e\u30ab\u30c3\u30c8\u306e\u8aac\u660e\u3092\u5b8c\u4e86\u3057\u305f\u5f8c\u3067\u3059\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u898b\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u76f8\u4e92\u4f5c\u7528\u306e\u4e00\u822c\u7684\u306a\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u7279\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/span><\/p>\n<ul>\n<li><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u304c\u5225\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3082\u306e\u3068\u3057\u3066\u63cf\u304b\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u9593\u306e\u95a2\u4fc2\u306f include \u307e\u305f\u306f uses \u95a2\u4fc2\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/span><\/li>\n<li><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306b\u306f\u3001\u30d3\u30b8\u30cd\u30b9 \u30d7\u30ed\u30bb\u30b9 \u30d5\u30ed\u30fc\u306e\u4e00\u90e8\u3068\u3057\u3066\u3001\u5225\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3067\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u6a5f\u80fd\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li><span>\u30d9\u30fc\u30b9 \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u304b\u3089\u5b50\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3078\u306e uses \u95a2\u4fc2\u306f\u3001\u30d9\u30fc\u30b9 \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u5b50\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3067\u6307\u5b9a\u3055\u308c\u305f\u52d5\u4f5c\u3092\u542b\u3080\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/span><\/li>\n<li><span>\u5305\u542b\u95a2\u4fc2\u306f\u3001\u70b9\u7dda\u306e\u3042\u308b\u6709\u5411\u77e2\u5370\u3067\u8868\u3055\u308c\u307e\u3059\u3002\u77e2\u5370\u306e\u5148\u7aef\u306f\u5b50\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u89aa\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u77e2\u5370\u306e\u6839\u5143\u3067\u7d50\u3093\u3067\u3044\u307e\u3059\u3002<\/span><\/li>\n<li><span>\u30b9\u30c6\u30ec\u30aa\u30bf\u30a4\u30d7\u300c&lt;&lt;include&gt;&gt;\u300d\u306f\u3001\u95a2\u4fc2\u3092\u5305\u542b\u95a2\u4fc2\u3068\u3057\u3066\u8b58\u5225\u3057\u307e\u3059\u3002<\/span><\/li>\n<\/ul>\n<h3><span id=\"Use_Case_Example_-_Include_Relationship\"><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u4f8b \u2013 \u95a2\u4fc2\u3092\u542b\u3081\u308b<\/span><\/span><\/h3>\n<p><span>include \u95a2\u4fc2\u306f\u3001\u57fa\u672c\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u8ffd\u52a0\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002&lt;&lt;Include&gt;&gt; \u95a2\u4fc2\u306f\u3001\u4e00\u822c\u7684\u306a\u52d5\u4f5c\u306e\u518d\u5229\u7528\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u3001\u542b\u307e\u308c\u308b\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u304b\u3089\u57fa\u672c\u7684\u306a\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306b\u4e00\u822c\u7684\u306a\u52d5\u4f5c\u3092\u542b\u3081\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-2\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/08-use-case-diagram-notation-include.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u8868\u8a18 - \u542b\u3080\" \/><\/p>\n<h3><span id=\"What_is_a_Extend_Use_Case\"><strong><span>&lt;&lt;Extend&gt;&gt; \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3068\u306f?<\/span><\/strong><\/span><\/h3>\n<p><img decoding=\"async\" id=\"thepasted-4\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/07-use-case-diagram-notation-extend.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u8868\u8a18 - \u62e1\u5f35\" \/><\/p>\n<ul>\n<li><strong><span>\u300c\u7121\u52b9\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u300d<\/span><\/strong><span>\u00a0\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306b\u306f\u3001\u57fa\u672c\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u00a0<\/span><strong><span>\u300c\u30ed\u30b0\u30a4\u30f3 \u30a2\u30ab\u30a6\u30f3\u30c8\u300d<\/span><\/strong><span>\u3067\u6307\u5b9a\u3055\u308c\u305f\u52d5\u4f5c\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u00a0(\u62e1\u5f35\u6a5f\u80fd\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408)\u00a0\u3002<\/span><\/li>\n<li><span>\u70b9\u7dda\u306e\u3042\u308b\u6709\u5411\u77e2\u5370\u3067\u8868\u3057\u307e\u3059\u3002\u77e2\u5370\u306e\u5148\u7aef\u304c\u30d9\u30fc\u30b9\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u6307\u3057\u3001\u5b50\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u77e2\u5370\u306e\u4ed8\u3051\u6839\u3067\u3064\u306a\u304c\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li><span>\u30b9\u30c6\u30ec\u30aa\u30bf\u30a4\u30d7\u300c&lt;&lt;extends&gt;&gt;\u300d\u306f\u62e1\u5f35\u95a2\u4fc2\u3068\u3057\u3066\u8b58\u5225\u3055\u308c\u307e\u3059<\/span><\/li>\n<\/ul>\n<h4><span id=\"Extend_Relationship\"><span>\u95a2\u4fc2\u3092\u62e1\u5f35\u3059\u308b<\/span><\/span><\/h4>\n<p><span>\u62e1\u5f35\u95a2\u4fc2\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6a5f\u80fd\u307e\u305f\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u3092\u793a\u3059\u305f\u3081\u3001\u91cd\u8981\u3067\u3059\u3002&lt;&lt;extend&gt;&gt; \u95a2\u4fc2\u306f\u3001\u62e1\u5f35\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u62e1\u5f35\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u304b\u3089\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u3092\u542b\u3081\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u300c\u7121\u52b9\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u300d\u3092\u6301\u3064\u62e1\u5f35\u30b3\u30cd\u30af\u30bf\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h3><span id=\"Abstract_and_generalized_Use_Case\"><span>\u62bd\u8c61\u7684\u3067\u4e00\u822c\u5316\u3055\u308c\u305f\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/span><\/span><\/h3>\n<p><span>\u4e00\u822c\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u62bd\u8c61\u7684\u3067\u3059\u3002\u4e0d\u5b8c\u5168\u306a\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3067\u304d\u307e\u305b\u3093\u3002\u62bd\u8c61\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u30bf\u30a4\u30c8\u30eb\u306f\u30a4\u30bf\u30ea\u30c3\u30af\u4f53\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-5\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/08-use-case-diagram-notation-generalization.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u8868\u8a18\u6cd5 - \u4e00\u822c\u5316\" \/><\/p>\n<h2><span id=\"Use_Case_Diagram_Example\"><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b<\/span><\/span><\/h2>\n<p><span>\u3053\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\u306f\u3001\u30ec\u30b9\u30c8\u30e9\u30f3 (\u30d3\u30b8\u30cd\u30b9 \u30b7\u30b9\u30c6\u30e0) \u3068\u305d\u306e\u4e3b\u8981\u306a\u5229\u5bb3\u95a2\u4fc2\u8005 (\u30d3\u30b8\u30cd\u30b9\u53c2\u52a0\u8005\u304a\u3088\u3073\u30d3\u30b8\u30cd\u30b9 \u30ef\u30fc\u30ab\u30fc) \u3068\u306e\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u8868\u3059\u3044\u304f\u3064\u304b\u306e\u30d3\u30b8\u30cd\u30b9 \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 (\u76ee\u6a19) \u306e\u30e2\u30c7\u30eb\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u521d\u306e\u30ab\u30c3\u30c8\u3067\u57fa\u672c\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u7279\u5b9a\u3057\u305f\u306e\u3067\u3001\u304a\u305d\u3089\u304f\u30012 \u56de\u76ee\u306e\u6539\u8a02\u3067\u300c\u62e1\u5f35\u300d\u304a\u3088\u3073\u300c\u542b\u3081\u308b\u300d\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u3053\u308c\u3089\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u3055\u3089\u306b\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-6\" class=\"n3VNCb KAlRDb\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/Use-Case-Diagram-Include-and-Extend-Use-Cases.png\" alt=\"\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3\u3001UML \u56f3\u306e\u4f8b: \u300c\u542b\u3081\u308b\u300d\u304a\u3088\u3073\u300c\u62e1\u5f35\u3059\u308b\u300d\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 - \u30d3\u30b8\u30e5\u30a2\u30eb \u30d1\u30e9\u30c0\u30a4\u30e0 \u30b3\u30df\u30e5\u30cb\u30c6\u30a3 \u30b5\u30fc\u30af\u30eb\" \/><\/p>\n<\/div>\n<\/div>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Use case relationships model the dependencies between use cases in the interaction model of the system. Although, independent use cases can adequately represent simpler systems. However, in order to represent complex or large systems, we may need to construct complex use cases with the help of dependencies between use cases. Establishing relationships between use cases allows reuse of those use cases that need to be defined over and over again, which reduces developer effort.<\/p>\n","protected":false},"author":1,"featured_media":3608,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-3481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u300c\u542b\u3081\u308b\u300d\u304a\u3088\u3073\u300c\u62e1\u5f35\u3059\u308b\u300d\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9 - Visual Paradigm \u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"Use case relationships model the dependencies between use cases in the interaction model of the system. 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