{"id":6373,"date":"2026-02-04T15:06:01","date_gmt":"2026-02-04T07:06:01","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/choosing-the-right-diagram-sequence-or-activity-for-use-case-elaboration\/"},"modified":"2026-02-04T15:06:01","modified_gmt":"2026-02-04T07:06:01","slug":"choosing-the-right-diagram-sequence-or-activity-for-use-case-elaboration","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/choosing-the-right-diagram-sequence-or-activity-for-use-case-elaboration\/","title":{"rendered":"\u9069\u5207\u306a\u56f3\u306e\u9078\u629e\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u8a73\u7d30\u5316\u306b\u304a\u3051\u308b\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u304b"},"content":{"rendered":"<h2><strong>\u306f\u3058\u3081\u306b<\/strong><\/h2>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306e\u5206\u91ce\u306b\u304a\u3044\u3066\u3001\u56f3\u5f0f\u8868\u73fe\u306e\u9078\u629e\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u8907\u96d1\u3055\u3092\u52b9\u679c\u7684\u306b\u4f1d\u3048\u308b\u4e0a\u3067\u6975\u3081\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u8a73\u7d30\u5316\u306b\u304a\u3044\u3066\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3068\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306e\u3069\u3061\u3089\u3092\u4f7f\u3046\u304b\u3068\u3044\u3046\u9078\u629e\u306f\u3001\u610f\u56f3\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306e\u660e\u78ba\u3055\u3068\u7406\u89e3\u5ea6\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u56f3\u306e\u9577\u6240\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u5fdc\u7528\u3084\u7279\u5fb4\u3092\u8003\u616e\u3057\u306a\u304c\u3089\u63a2\u6c42\u3057\u307e\u3059\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3068\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u5177\u4f53\u7684\u306a\u8981\u4ef6\u306b\u57fa\u3065\u3044\u305f\u9078\u629e\u3092\u652f\u63f4\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u304b\uff1f<\/h2>\n<p>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u3046\u304b\u306e\u9078\u629e\u306f\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306e\u6027\u8cea\u3068\u5f37\u8abf\u3057\u305f\u3044\u5074\u9762\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img alt=\"How to Use Sub-Diagrams?\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/10\/15_elaborate_use_case.png\"\/><\/p>\n<p><strong><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>:<\/strong><\/p>\n<ul>\n<li><strong>\u9577\u6240\uff1a<\/strong>\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u304a\u3051\u308b\u7570\u306a\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u8868\u73fe\u3059\u308b\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u6642\u9593\u306e\u7d4c\u904e\u306b\u4f34\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3084\u76f8\u4e92\u4f5c\u7528\u306e\u6d41\u308c\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u5229\u7528\u4e8b\u4f8b\uff1a<\/strong>\u30a4\u30d9\u30f3\u30c8\u306e\u6642\u7cfb\u5217\u7684\u306a\u9806\u5e8f\u304c\u91cd\u8981\u3067\u3042\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u7684\u5074\u9762\u3092\u5f37\u8abf\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-activity-diagram\/\"><strong>\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff1a<\/strong><\/a><\/p>\n<ul>\n<li><strong>\u9577\u6240\uff1a<\/strong>\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u6d3b\u52d5\u306e\u5168\u4f53\u7684\u306a\u6d41\u308c\u3092\u6349\u3048\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u9ad8\u30ec\u30d9\u30eb\u306a\u8996\u70b9\u3092\u63d0\u4f9b\u3057\u3001\u4e26\u5217\u307e\u305f\u306f\u540c\u6642\u306e\u6d3b\u52d5\u3092\u793a\u3059\u306e\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u5229\u7528\u4e8b\u4f8b\uff1a<\/strong>\u6d3b\u52d5\u306e\u6d41\u308c\u3001\u610f\u601d\u6c7a\u5b9a\u3001\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u69cb\u9020\u3092\u5f37\u8abf\u3057\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><strong>\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306e\u5224\u65ad\u57fa\u6e96\uff1a<\/strong><\/p>\n<ol>\n<li><strong>\u76f8\u4e92\u4f5c\u7528\u306e\u8907\u96d1\u3055\uff1a<\/strong>\u7570\u306a\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u8907\u96d1\u306a\u76f8\u4e92\u4f5c\u7528\u304c\u3042\u308a\u3001\u30a4\u30d9\u30f3\u30c8\u306e\u6642\u7cfb\u5217\u7684\u306a\u9806\u5e8f\u306b\u91cd\u70b9\u3092\u7f6e\u304f\u5834\u5408\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u65b9\u304c\u9069\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30bb\u30b9\u306e\u6d41\u308c\uff1a<\/strong>\u8907\u6570\u306e\u6d3b\u52d5\u3001\u610f\u601d\u6c7a\u5b9a\u3001\u4e26\u5217\u51e6\u7406\u3092\u542b\u3080\u5834\u5408\u3001\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306f\u5168\u4f53\u306e\u6d41\u308c\u3092\u3088\u308a\u660e\u78ba\u306b\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u8a73\u7d30\u5ea6\uff1a<\/strong>\u4f1d\u3048\u305f\u3044\u8a73\u7d30\u5ea6\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u76f8\u4e92\u4f5c\u7528\u306b\u7279\u5316\u3057\u305f\u8a73\u7d30\u306a\u8868\u73fe\u3067\u3042\u308a\u3001\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306f\u3088\u308a\u62bd\u8c61\u7684\u3067\u9ad8\u30ec\u30d9\u30eb\u306a\u30d7\u30ed\u30bb\u30b9\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30cb\u30fc\u30ba\uff1a<\/strong>\u5bfe\u8c61\u3068\u306a\u308b audience 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