{"id":3501,"date":"2022-02-10T09:05:28","date_gmt":"2022-02-10T01:05:28","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/ja\/?p=3501"},"modified":"2022-11-25T17:32:37","modified_gmt":"2022-11-25T09:32:37","slug":"the-four-types-of-relationship-in-use-case-diagram","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/ja\/the-four-types-of-relationship-in-use-case-diagram\/","title":{"rendered":"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306b\u304a\u3051\u308b4\u3064\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u4fc2"},"content":{"rendered":"<p><span>UML \u3067\u306f\u3001\u95a2\u4fc2\u306f\u30e2\u30c7\u30eb\u8981\u7d20\u9593\u306e\u63a5\u7d9a\u3067\u3059\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3082\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u95a2\u4fc2\u3067\u76f8\u4e92\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u30022 \u3064\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u9593\u306e\u95a2\u4fc2\u306f\u3001\u57fa\u672c\u7684\u306b 2 \u3064\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u9593\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u30e2\u30c7\u30eb\u5316\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u306e\u95a2\u4fc2\u3092\u4f7f\u7528\u3057\u3066\u65e2\u5b58\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3092\u518d\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u306b\u5fc5\u8981\u306a\u5168\u4f53\u7684\u306a\u52b4\u529b\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\"><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3<\/span><\/a><span>\u306f\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u3001\u30a2\u30af\u30bf\u30fc\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u9593\u306e\u95a2\u4fc2\u3092\u793a\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30a2\u30af\u30bf\u30fc\u3068\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u95a2\u4fc2\u306f\u3001\u30a2\u30af\u30bf\u30fc\u304c\u30d3\u30b8\u30cd\u30b9 \u30b7\u30b9\u30c6\u30e0\u306e\u7279\u5b9a\u306e\u6a5f\u80fd\u3092\u4f7f\u7528\u3067\u304d\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><strong><span>\u95a2\u9023\u95a2\u4fc2<\/span><\/strong><\/p>\n<p><strong><span>\u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3<\/span><\/strong><span>\u306f\u3001\u30a2\u30af\u30bf\u30fc\u3068\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306a\u3069\u306e 2 \u3064\u306e\u5206\u985e\u5b50\u9593\u306e\u95a2\u4fc2\u3067\u3042\u308a\u3001\u95a2\u4fc2\u306e\u539f\u56e0\u3068\u305d\u308c\u3092\u7ba1\u7406\u3059\u308b\u30eb\u30fc\u30eb\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u30a2\u30af\u30bf\u30fc\u3068\u30d3\u30b8\u30cd\u30b9 \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u306e\u9593\u306e\u95a2\u4fc2\u3067\u3059\u3002\u30a2\u30af\u30bf\u30fc\u304c\u30d3\u30b8\u30cd\u30b9 \u30b7\u30b9\u30c6\u30e0\u306e\u6a5f\u80fd\u3092\u4f7f\u7528\u3067\u304d\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-17\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/09-use-case-diagram-example.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\" \/><\/p>\n<h4><span id=\"Generalization_Relationships\"><strong><span>\u6c4e\u5316\u95a2\u4fc2<\/span><\/strong><\/span><\/h4>\n<p><strong><span>\u6c4e\u5316<\/span><\/strong><span>\u95a2\u4fc2\u3068\u306f\u30011 \u3064\u306e\u30e2\u30c7\u30eb\u8981\u7d20 (\u5b50) \u304c\u5225\u306e\u30e2\u30c7\u30eb\u8981\u7d20 (\u89aa) \u306b\u57fa\u3065\u304f\u95a2\u4fc2\u3067\u3059\u3002\u6c4e\u5316\u95a2\u4fc2\u306f\u3001\u30af\u30e9\u30b9\u56f3\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u56f3\u3001\u914d\u7f6e\u56f3\u3001\u304a\u3088\u3073\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3067\u4f7f\u7528\u3055\u308c\u3001\u5b50\u8981\u7d20\u304c\u89aa\u8981\u7d20\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u5c5e\u6027\u3001\u64cd\u4f5c\u3001\u304a\u3088\u3073\u95a2\u4fc2\u3092\u53d7\u3051\u5165\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-19\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/12-use-case-diagram-generalization-example.png\" alt=\"\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3\u306e\u4e00\u822c\u5316\u306e\u4f8b\" \/><\/p>\n<h4><span id=\"Include_Relationships\"><strong><span>\u95a2\u4fc2\u3092\u542b\u3081\u308b<\/span><\/strong><\/span><\/h4>\n<p><span>UML \u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u306f\u3001<\/span><strong><span>\u5305\u542b<\/span><\/strong><span>\u95a2\u4fc2\u306f\u3001\u3042\u308b\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 (\u57fa\u672c\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9) \u304c\u5225\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 (\u5305\u542b\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9) \u306e\u6a5f\u80fd\u3092\u542b\u3080\u95a2\u4fc2\u3067\u3059\u3002\u5305\u542b\u95a2\u4fc2\u306f\u3001\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30e2\u30c7\u30eb\u3067\u306e\u6a5f\u80fd\u306e\u518d\u5229\u7528\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-18\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/10-use-case-diagram-include-example.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u4f8b\" \/><\/p>\n<h4><span id=\"Extending_relationships\"><strong><span>\u95a2\u4fc2\u3092\u62e1\u5f35\u3059\u308b<\/span><\/strong><\/span><\/h4>\n<p><span>UML \u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u306f\u3001<\/span><strong><span>\u62e1\u5f35<\/span><\/strong><span>\u95a2\u4fc2\u3092\u4f7f\u7528\u3057\u3066\u3001\u3042\u308b\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 (\u62e1\u5f35) \u304c\u5225\u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 (\u57fa\u672c) \u306e\u52d5\u4f5c\u3092\u62e1\u5f35\u3059\u308b\u3088\u3046\u306b\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u4fc2\u306f\u3001\u901a\u5e38\u306f\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u96a0\u3055\u308c\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u307e\u305f\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u8a73\u7d30\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-20\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/11-use-case-diagram-extend-example.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u62e1\u5f35\u4f8b\" \/><\/p>\n<p><span>\u305d\u306e\u4ed6\u306e\u4f7f\u7528\u4f8b<\/span><\/p>\n<p><span>\u653e\u9001\u30b7\u30b9\u30c6\u30e0\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-16\" class=\"related-templates-masonry-content lozad\" title=\"\u653e\u9001\u30b7\u30b9\u30c6\u30e0\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/broadcasting-system-use-case-diagram.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a\u653e\u9001\u30b7\u30b9\u30c6\u30e0\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System%20Use%20Case%20Diagram\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>ATM \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-1\" class=\"related-templates-masonry-content lozad\" title=\"ATM \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/atm-use-case-diagram-example.png\" alt=\"\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0 \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: ATM \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306e\u4f8b (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0 \u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/b92c57a8-fe64-40ed-8d29-f990c60442ba.xml&amp;name=ATM%20Use%20Case%20Diagram%20Example\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3: \u30b7\u30b9\u30c6\u30e0\u5883\u754c\u306e\u3042\u308b\u8907\u6570\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-2\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3: \u30b7\u30b9\u30c6\u30e0\u5883\u754c\u306e\u3042\u308b\u8907\u6570\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-multiple-projects-with-system-boundaries.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: \u30b7\u30b9\u30c6\u30e0\u5883\u754c\u3092\u6301\u3064\u8907\u6570\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8 (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)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/36994afe-da24-490b-a738-ec69389e6848.xml&amp;name=Use%20Case%20Diagram%3A%20Multiple%20Projects%20with%20System%20Boundaries\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u53d7\u9a13\u30b7\u30b9\u30c6\u30e0<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-3\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u53d7\u9a13\u30b7\u30b9\u30c6\u30e0\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-online-examination-system.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5be9\u67fb\u30b7\u30b9\u30c6\u30e0\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/6853c46b-cd6b-42e6-8ab3-1dc0212a9138.xml&amp;name=Use%20Case%20Diagram%3A%20Online%20Examination%20System\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u65c5\u5ba2\u30b5\u30fc\u30d3\u30b9<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-4\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u65c5\u5ba2\u30b5\u30fc\u30d3\u30b9\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-passenger-service.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u65c5\u5ba2\u30b5\u30fc\u30d3\u30b9 (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210)\" \/><\/p>\n<p><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\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-5\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-software-development.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\uff1a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u3067\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8db64e28-b238-426a-b45a-16904dad2d78.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Software%20Development\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u99d0\u8eca\u5834\u30b7\u30b9\u30c6\u30e0<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-6\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u99d0\u8eca\u5834\u30b7\u30b9\u30c6\u30e0\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-carpark-system.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u99d0\u8eca\u5834\u30b7\u30b9\u30c6\u30e0 (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/1f361115-e531-44f1-b88c-e8d977d018ab.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Carpark%20System\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>UML \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3: \u6ce8\u6587\u30d7\u30ed\u30bb\u30b9 \u30b7\u30b9\u30c6\u30e0<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-7\" class=\"related-templates-masonry-content lozad\" title=\"UML \u30e6\u30fc\u30b9 \u30b1\u30fc\u30b9\u56f3: \u6ce8\u6587\u30d7\u30ed\u30bb\u30b9 \u30b7\u30b9\u30c6\u30e0\" src=\"https:\/\/blog.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/7\/2022\/11\/uml-use-case-diagram-order-process-system.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1aUML \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\uff1a\u6ce8\u6587\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u4f5c\u6210\u8005\u304c\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/9737b5ac-6e60-472b-9b57-d47d1e1894ee.xml&amp;name=UML%20Use%20Case%20Diagram%3A%20Order%20Process%20System\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u542b\u3081\u3066\u62e1\u5f35\u3059\u308b<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-15\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u542b\u3081\u3066\u62e1\u5f35\u3059\u308b\" 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)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Case%20Diagram\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: Web \u30b5\u30a4\u30c8 (\u62e1\u5f35\u3057\u3066\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u542b\u3081\u308b)<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-14\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: Web \u30b5\u30a4\u30c8 (\u62e1\u5f35\u3057\u3066\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u542b\u3081\u308b)\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-website-extend-and-include-use-case.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8 (\u62e1\u5f35\u3057\u3066\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u542b\u3081\u308b) (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/ebe9444d-1ffc-464d-a9b8-6b923da9b741.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Website%20%28Extend%20and%20Include%20Use%20Case%29\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u30a2\u30af\u30bf\u30fc\u3068\u3057\u3066\u306e\u5916\u90e8\u30b7\u30b9\u30c6\u30e0<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-10\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u30a2\u30af\u30bf\u30fc\u3068\u3057\u3066\u306e\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-external-system-as-actor.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\uff1a\u30a2\u30af\u30bf\u30fc\u3068\u3057\u3066\u306e\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u4f5c\u6210\u8005\u304c\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/1cc743f9-a26c-45e4-aaa1-2447bcc41dbf.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20External%20System%20as%20Actor\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u9280\u884c ATM<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-11\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u9280\u884c ATM\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-bank-atm.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8: \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u9280\u884c\u306e ATM (Visual Paradigm Online \u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210)\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/30a2ced3-3aa4-40c5-b2a0-8e987518b6de.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Bank%20ATM\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<p><span>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u7a7a\u6e2f<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-12\" class=\"related-templates-masonry-content lozad\" title=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b: \u7a7a\u6e2f\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/use-case-diagram-example-airport.png\" alt=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306e\u4f8b\uff1a\u7a7a\u6e2f\uff08Visual Paradigm Online\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30e1\u30fc\u30ab\u30fc\u304c\u4f5c\u6210\uff09\" \/><\/p>\n<p><a class=\"edit-template-v1\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4c655668-1fcf-4335-8313-5783862271da.xml&amp;name=Use%20Case%20Diagram%20Example%3A%20Airport\"><span>\u3053\u306e\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7de8\u96c6<\/span><\/a><\/p>\n<h3><span id=\"References\"><span>\u53c2\u8003\u6587\u732e<\/span><\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/solutions\/free-use-case-diagram-tool\/\"><span><span class=\"goog-text-highlight\">\u7121\u6599\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u30c4\u30fc\u30eb<\/span><\/span><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In UML, relationships are connections between model elements. Use cases are also connected to each other in different kinds of relationships. The relationship between two use cases basically models the dependencies between two use cases. By reusing existing use cases using different types of relationships, the overall effort required to develop the system is reduced. Use case diagrams show use cases, actors, and the relationships between them. For example, the relationship between an actor and a use case illustrates that the actor can use a certain functionality of the business system.<\/p>\n","protected":false},"author":1,"featured_media":3535,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-3501","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>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306b\u304a\u3051\u308b4\u3064\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u4fc2 - Visual Paradigm \u30d6\u30ed\u30b0<\/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:\/\/blog.visual-paradigm.com\/ja\/the-four-types-of-relationship-in-use-case-diagram\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u306b\u304a\u3051\u308b4\u3064\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u4fc2 - Visual Paradigm \u30d6\u30ed\u30b0\" \/>\n<meta property=\"og:description\" content=\"In UML, relationships are connections between model elements. Use cases are also connected to each other in different kinds of relationships. The relationship between two use cases basically models the dependencies between two use cases. By reusing existing use cases using different types of relationships, the overall effort required to develop the system is reduced. Use case diagrams show use cases, actors, and the relationships between them. 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