{"id":11353,"date":"2026-08-03T16:24:52","date_gmt":"2026-08-03T08:24:52","guid":{"rendered":"https:\/\/www.cybermedian.com\/ja\/uml-sequence-diagrams-guide-modeling-time-ordered-interactions\/"},"modified":"2026-09-03T22:38:29","modified_gmt":"2026-09-03T14:38:29","slug":"uml-sequence-diagrams-guide-modeling-time-ordered-interactions","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/ja\/uml-sequence-diagrams-guide-modeling-time-ordered-interactions\/","title":{"rendered":"UML\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u7fd2\u5f97\uff1a\u6642\u7cfb\u5217\u9806\u5e8f\u4ed8\u304d\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9"},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u306e\u8907\u96d1\u306a\u4e16\u754c\u306b\u304a\u3044\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u4f55\u3092\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u534a\u5206\u306e\u6226\u3044\u306b\u904e\u304e\u305a\u3001<em>\u4f55\u3092<\/em>\u30b7\u30b9\u30c6\u30e0\u304c\u884c\u3046\u3053\u3068\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u534a\u5206\u306e\u6226\u3044\u306b\u904e\u304e\u305a\u3001<em>\u3069\u306e\u3088\u3046\u306b<\/em>\u305d\u308c\u304c\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u3069\u306e\u3088\u3046\u306b\u884c\u308f\u308c\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3068\u3053\u308d\u306b\u3001\u771f\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u660e\u78ba\u3055\u304c\u73fe\u308c\u307e\u3059\u3002\u9759\u7684\u56f3\u306f\u69cb\u9020\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u304c\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u632f\u308b\u821e\u3044\u306e\u52d5\u7684\u306a\u6027\u8cea\u2014\u2014\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u53d6\u308a\u3001\u51e6\u7406\u306e\u9806\u5e8f\u3001\u76f8\u4e92\u4f5c\u7528\u306e\u91cd\u8981\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u2014\u2014\u3092\u6349\u3048\u304d\u308c\u306a\u3044\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img alt=\"UML\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u306e\u305f\u3081\u306e\u8aac\u660e\u56f3\u3067\u3042\u308a\u3001\u9867\u5ba2\u304c\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3084\u308a\u53d6\u308a\u3057\u3066\u6ce8\u6587\u3092\u4f5c\u6210\u3057\u3001\u5728\u5eab\u3092\u4e88\u7d04\u3057\u3001\u652f\u6255\u3044\u3092\u8acb\u6c42\u3059\u308b\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u6642\u9593\u9806\u306e\u76f8\u4e92\u4f5c\u7528\u3001\u6210\u529f\u3068\u5931\u6557\u306e\u305f\u3081\u306e'alt'\u65ad\u7247\u3001'loop'\u65ad\u7247\u3001\u304a\u3088\u3073\u30af\u30e9\u30b9\u56f3\u3084\u30b9\u30c6\u30fc\u30c8\u30de\u30b7\u30f3\u306a\u3069\u306e\u95a2\u9023\u3059\u308bUML\u6982\u5ff5\u3092\u53ef\u8996\u5316\u3057\u3066\u3044\u308b\u3002\" class=\"alignnone size-full wp-image-19734\" decoding=\"async\" height=\"816\" loading=\"lazy\" sizes=\"auto, (max-width: 1312px) 100vw, 1312px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions.jpg\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions.jpg 1312w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions-300x187.jpg 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions-1024x637.jpg 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions-768x478.jpg 768w\" width=\"1312\"\/><\/p>\n<p>\u767b\u5834\u3059\u308b\u306e\u306f<strong><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml\/\">UML<\/a> <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a><\/strong>\u3067\u3059\u3002\u76f8\u4e92\u4f5c\u7528\u56f3\u3068\u3057\u3066\u3001\u5782\u76f4\u306e\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u306b\u6cbf\u3063\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u30a2\u30af\u30bf\u30fc\u3092\u53ef\u8996\u5316\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u53d6\u308a\u3092\u6c34\u5e73\u65b9\u5411\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002\u6642\u7cfb\u5217\u9806\u306b\u4e0a\u304b\u3089\u4e0b\u3078\u4e26\u3079\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u898b\u304b\u3051\u306f\u5358\u7d14\u3060\u304c\u6df1\u9060\u306a\u554f\u3044\u306b\u7b54\u3048\u308b\u3082\u306e\u3067\u3059\uff1a<strong>\u300c\u8ab0\u304c\u8ab0\u306b\u3001\u3069\u306e\u3088\u3046\u306a\u9806\u5e8f\u3067\u8a71\u3057\u304b\u3051\u3001\u6b21\u306b\u4f55\u304c\u8d77\u3053\u308b\u306e\u304b\uff1f\u300d<\/strong><\/p>\n<p>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304c\u696d\u754c\u3067\u6700\u3082\u5e83\u304f\u4f7f\u308f\u308c\u308b\u30c4\u30fc\u30eb\u306e\u4e00\u3064\u3067\u3042\u308b\u7406\u7531\u3001\u8ab0\u304c\u305d\u308c\u3089\u304b\u3089\u5229\u76ca\u3092\u5f97\u308b\u304b\u3001\u305d\u3057\u3066\u4ed6\u306e<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/overview-of-the-14-uml-diagram-types\/\">UML\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8<\/a>\u3068\u3069\u306e\u3088\u3046\u306b\u7d71\u5408\u3055\u308c\u3001\u5b8c\u5168\u306a\u30b7\u30b9\u30c6\u30e0\u30e2\u30c7\u30eb\u3092\u69cb\u7bc9\u3059\u308b\u304b\u3092\u691c\u8a0e\u3057\u307e\u3059\u3002\u5b9f\u969b\u306ee\u30b3\u30de\u30fc\u30b9\u6c7a\u6e08\u30b7\u30ca\u30ea\u30aa\u3092\u7528\u3044\u3066\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u7bc4\u56f2\u304b\u3089\u8a73\u7d30\u306a\u632f\u308b\u821e\u3044\u30e2\u30c7\u30eb\u5316\u3078\u3068\u79fb\u884c\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3001\u6280\u8853\u8a2d\u8a08\u304c\u5805\u7262\u304b\u3064\u7406\u89e3\u3057\u3084\u3059\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<hr\/>\n<h2>1. \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u4f7f\u3046\u3079\u304d\u30bf\u30a4\u30df\u30f3\u30b0<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>\u306f\u4e07\u80fd\u306e\u89e3\u6c7a\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u7279\u306b<strong>\u6642\u7cfb\u5217\u9806\u5e8f\u3068\u76f8\u4e92\u4f5c\u7528<\/strong>\u304c\u4e3b\u306a\u95a2\u5fc3\u4e8b\u3067\u3042\u308b\u5834\u5408\u306b\u7279\u306b\u5149\u308a\u307e\u3059\u3002\u9759\u7684\u69cb\u9020\u3084\u30a2\u30af\u30bf\u30fc\u306e\u7bc4\u56f2\u3088\u308a\u3082\u3001\u305d\u308c\u3089\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u72b6\u6cc1<\/th>\n<th align=\"left\">\u306a\u305c\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304c\u9069\u3057\u3066\u3044\u308b\u306e\u304b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\"><strong>\u65b0\u3057\u3044\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3084\u6a5f\u80fd\u306e\u8a2d\u8a08<\/strong><\/td>\n<td align=\"left\">\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u524d\u306b\u3001\u5354\u8abf\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u632f\u308b\u821e\u3044\u3092\u5b9f\u73fe\u3059\u308b\u304b\u3092\u691c\u8a0e\u3067\u304d\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b9a\u7fa9<\/strong><\/td>\n<td align=\"left\">\u30ea\u30af\u30a8\u30b9\u30c8-\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30d5\u30ed\u30fc\u3001API\u547c\u3073\u51fa\u3057\u3001\u307e\u305f\u306f\u30b7\u30b9\u30c6\u30e0\uff0f\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u306e\u306b\u7406\u60f3\u7684\u3067\u3042\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u4e26\u884c\u51e6\u7406\u3068\u9806\u5e8f\u306e\u7ba1\u7406<\/strong><\/td>\n<td align=\"left\">\u975e\u540c\u671f\u547c\u3073\u51fa\u3057\u3001\u4e26\u884c\u5206\u5c90\u3001\u53b3\u5bc6\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u6838\u5fc3\u7684\u306a\u8ab2\u984c\u3067\u3042\u308b\u5834\u5408\u3001\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u5358\u4e00\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u3067\u8ffd\u8de1\u3059\u308b<\/strong><\/td>\n<td align=\"left\">\u30b7\u30b9\u30c6\u30e0\u5185\u3092\u5177\u4f53\u7684\u306a\u7d4c\u8def\u3067\u793a\u3059\uff1b\u56f3\u306f<em>\u3067\u3042\u308b<\/em>\u30c8\u30ec\u30fc\u30b9\u3067\u3042\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u65e2\u5b58\u306e\u632f\u308b\u821e\u3044\u306e\u6587\u66f8\u5316<\/strong><\/td>\n<td align=\"left\">\u30ec\u30ac\u30b7\u30fc\u30d5\u30ed\u30fc\u306e\u9006\u8a2d\u8a08\u3001\u65b0\u898f\u958b\u767a\u8005\u306e\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u3001\u7d71\u5408\u306e\u6587\u66f8\u5316\u306b\u5f79\u7acb\u3064\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u30c7\u30d0\u30c3\u30b0\u3068\u30c6\u30b9\u30c8\u8a2d\u8a08<\/strong><\/td>\n<td align=\"left\">\u3069\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u76f8\u4e92\u4f5c\u7528\u3057\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3059\u308b\u306e\u3092\u52a9\u3051\u3001\u305d\u308c\u3089\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u4e2d\u5fc3\u306b\u30c6\u30b9\u30c8\u3084\u30b9\u30bf\u30d6\u306e\u8a2d\u8a08\u3092\u652f\u63f4\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u8a2d\u8a08\u30ec\u30d3\u30e5\u30fc\u3068\u30a6\u30a9\u30fc\u30af\u30b9\u30eb\u30fc<\/strong><\/td>\n<td align=\"left\">\u884c\u52d5\u306e\u30ec\u30d3\u30e5\u30fc\u3092\u73fe\u5b9f\u7684\u3067\u5177\u4f53\u7684\u306a\u3082\u306e\u306b\u3059\u308b\u3001\u6642\u9593\u9806\u5e8f\u304c\u660e\u78ba\u306a\u56f3\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr\/>\n<h2>2. \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u8ab0\u304c\u4f7f\u3046\u306e\u304b\uff1f<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u7684\u304a\u3088\u3073\u30d3\u30b8\u30cd\u30b9\u4e0a\u306e\u5f79\u5272\u9593\u3067\u306e\u5171\u901a\u8a00\u8a9e\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\uff1a<\/p>\n<ul>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\uff0f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\uff1a<\/strong>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u7684\u6c7a\u5b9a\uff08\u4f8b\uff1a\u540c\u671f\u7684 vs \u975e\u540c\u671f\u7684\u547c\u3073\u51fa\u3057\uff09\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304a\u3088\u3073\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3002<\/li>\n<li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u8005\uff1a<\/strong>\u8907\u96d1\u306a\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u524d\u306b\u3001\u305d\u308c\u3089\u3092\u8a2d\u8a08\u306e\u30d6\u30eb\u30fc\u30d7\u30ea\u30f3\u30c8\u3068\u3057\u3066\u4f7f\u7528\u3057\u3001\u547c\u3073\u51fa\u3057\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u52d5\u7684\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u6d3b\u7528\u3059\u308b\u3002<\/li>\n<li><strong>\u30c6\u30af\u30cb\u30ab\u30eb\u30ea\u30fc\u30c9\uff0f\u30b7\u30cb\u30a2\u30a8\u30f3\u30b8\u30cb\u30a2\uff1a<\/strong>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u7528\u3044\u3066\u8a2d\u8a08\u30ec\u30d3\u30e5\u30fc\u3092\u4fc3\u9032\u3057\u3001\u7d30\u304b\u3044\u30ec\u30d9\u30eb\u3067\u306e\u632f\u308b\u821e\u3044\u306b\u3064\u3044\u3066\u8b70\u8ad6\u3059\u308b\u3002<\/li>\n<li><strong>QA\uff0f\u30c6\u30b9\u30c8\u30a8\u30f3\u30b8\u30cb\u30a2\uff1a<\/strong>\u7d71\u5408\u30c6\u30b9\u30c8\u304a\u3088\u3073\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u30c6\u30b9\u30c8\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u5c0e\u51fa\u3057\u3001\u30e2\u30c3\u30af\u304c\u5fc5\u8981\u306a\u4f9d\u5b58\u95a2\u4fc2\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u7279\u5b9a\u3059\u308b\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u304a\u3088\u3073\u30d3\u30b8\u30cd\u30b9\u30a2\u30ca\u30ea\u30b9\u30c8\uff1a<\/strong>\u30e6\u30fc\u30b6\u30fc\u306e\u65c5\u8def\u3092\u30bd\u30d5\u30c8\u8981\u4ef6\u306b\u5909\u63db\u3057\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u632f\u308b\u821e\u3044\u304c\u30d3\u30b8\u30cd\u30b9\u30d7\u30ed\u30bb\u30b9\u3068\u6574\u5408\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u7d71\u5408\u62c5\u5f53\u8005\u304a\u3088\u3073\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u30b3\u30f3\u30b5\u30eb\u30bf\u30f3\u30c8\uff1a<\/strong>\u8907\u6570\u306e\u30d9\u30f3\u30c0\u30fc\u30b5\u30a4\u30c9\u30b7\u30b9\u30c6\u30e0\u3001API\u3001\u304a\u3088\u3073\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9\uff08\u4f8b\uff1a\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\uff09\u9593\u306e\u53d7\u3051\u6e21\u3057\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3002<\/li>\n<\/ul>\n<hr\/>\n<h2>3. \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u304c\u696d\u754c\u306e\u5b9a\u756a\u3067\u3042\u308b\u7406\u7531<\/h2>\n<p>\u305d\u306e<a href=\"https:\/\/www.visual-paradigm.com\/guide\/sysml\/modeling-scenarios-with-sequence-diagram\/\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>\u306e\u666e\u53ca\u306f\u3001\u4eba\u9593\u306e\u8a8d\u77e5\u3068\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u73fe\u5b9f\u3068\u306e\u6574\u5408\u6027\u306b\u8d77\u56e0\u3059\u308b\uff1a<\/p>\n<ol>\n<li><strong>\u81ea\u7136\u306a\u7269\u8a9e\u306e\u53cd\u6620\uff1a<\/strong>\u4eba\u9593\u306f\u81ea\u7136\u306b\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u9806\u5e8f\u3068\u3057\u3066\u8aac\u660e\u3059\u308b\uff08\u300c\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u300d\u3001\u300c\u6ce8\u6587\u3092\u4fdd\u5b58\u3059\u308b\u300d\u3001\u300c\u30ab\u30fc\u30c9\u3092\u8acb\u6c42\u3059\u308b\u300d\uff09\u3002\u3053\u306e\u56f3\u306f\u3001\u305d\u306e\u7269\u8a9e\u306e\u76f4\u63a5\u7684\u306a\u8996\u899a\u7684\u8868\u73fe\u3067\u3042\u308b\u3002<\/li>\n<li><strong>\u6642\u9593\u3068\u56e0\u679c\u95a2\u4fc2\u3092\u6349\u3048\u308b\uff1a<\/strong>\u30af\u30e9\u30b9\u56f3\u3084\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u56f3\u3068\u306f\u7570\u306a\u308a\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u64cd\u4f5c\u306e\u9806\u5e8f\u3092\u660e\u793a\u7684\u306b\u30e2\u30c7\u30eb\u5316\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u3057\u3070\u3057\u3070\u6700\u3082\u91cd\u8981\u306a\u8a73\u7d30\u3067\u3042\u308b\u3002<\/li>\n<li><strong>\u76f4\u611f\u7684\u3067\u8ca0\u8377\u304c\u4f4e\u3044\uff1a<\/strong>\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u8aad\u307f\u3084\u3059\u304f\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304cUML\u306e\u6df1\u3044\u8a13\u7df4\u306a\u3057\u306b\u30b7\u30ca\u30ea\u30aa\u3092\u8ffd\u8de1\u3067\u304d\u308b\u3002<\/li>\n<li><strong>\u30b7\u30ca\u30ea\u30aa\u99c6\u52d5\u578b\u306e\u7126\u70b9\uff1a<\/strong>\u3059\u3079\u3066\u306e\u53ef\u80fd\u306a\u95a2\u4fc2\u3092\u4e8b\u524d\u306b\u30e2\u30c7\u30eb\u5316\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4e00\u3064\u306e\u5177\u4f53\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u8fc5\u901f\u306a\u4f5c\u6210\u3068\u691c\u8a3c\u306e\u3057\u3084\u3059\u3055\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/li>\n<li><strong>\u512a\u308c\u305f\u30c4\u30fc\u30eb\u30b5\u30dd\u30fc\u30c8\uff1a<\/strong>API\u30b3\u30fc\u30eb\u30b0\u30e9\u30d5\u306a\u3069\u306e\u73fe\u4ee3\u7684\u306a\u30d3\u30eb\u30c9\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u306b\u81ea\u7136\u306b\u5909\u63db\u3067\u304d\u3001\u30b3\u30fc\u30c9\uff08\u4f8b\uff1aPlantUML\uff09\u3068\u3057\u3066\u4fdd\u5b58\u53ef\u80fd\u3067\u3042\u308a\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u30bd\u30fc\u30b9\u306b\u8fd1\u3044\u5834\u6240\u306b\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u8907\u96d1\u3055\uff1a<\/strong>\u00a0\u6a5f\u80fd\u3068\u3057\u3066\u3001<code data-backticks=\"1\">alt<\/code>\/<code data-backticks=\"1\">opt<\/code>\/<code data-backticks=\"1\">loop<\/code>\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3084\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u306a\u3069\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u5358\u4e00\u306e\u56f3\u3067\u5206\u5c90\u3001\u9078\u629e\u80a2\u3001\u7e70\u308a\u8fd4\u3057\u3092\u8aad\u307f\u3084\u3059\u3055\u3092\u640d\u306a\u308f\u305a\u306b\u8868\u73fe\u3067\u304d\u308b\u3002<\/li>\n<\/ol>\n<hr\/>\n<h2>4. \u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\uff1a\u96fb\u5b50\u5546\u53d6\u5f15\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30b7\u30b9\u30c6\u30e0<\/h2>\n<p>\u3053\u308c\u3089\u306e\u6982\u5ff5\u3092\u5b9a\u7740\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u5177\u4f53\u7684\u306a\u4f8b\u3092\u691c\u8a0e\u3057\u3088\u3046\uff1a<strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30d5\u30ed\u30fc<\/strong>.<\/p>\n<p><strong>\u30b7\u30ca\u30ea\u30aa\uff1a<\/strong><\/p>\n<blockquote>\n<p>\u9867\u5ba2\u304c\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30ab\u30fc\u30c8\u3068\u4e00\u7dd2\u306b\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3092\u63d0\u51fa\u3059\u308b\u3002\u6ce8\u6587\u30b5\u30fc\u30d3\u30b9\u306f\u305d\u308c\u3092\u691c\u8a3c\u3057\u3001\u5728\u5eab\u3092\u4e88\u7d04\u3057\u3001\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306b\u8acb\u6c42\u3057\u3001\u627f\u8a8d\u3055\u308c\u305f\u5834\u5408\u306b\u6ce8\u6587\u3092\u78ba\u8a8d\u3057\u3066\u6c38\u7d9a\u5316\u3059\u308b\u3002\u9867\u5ba2\u306f\u78ba\u8a8d\u307e\u305f\u306f\u9069\u5207\u306a\u30a8\u30e9\u30fc\u3092\u53d7\u3051\u53d6\u308b\u3002<\/p>\n<\/blockquote>\n<h3>\u30b9\u30c6\u30c3\u30d71\uff1a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u4f7f\u3063\u3066\u7bc4\u56f2\u3092\u5b9a\u7fa9\u3059\u308b<\/h3>\n<p>\u76f8\u4e92\u4f5c\u7528\u3092\u8a73\u7d30\u306b\u8a18\u8ff0\u3059\u308b\u524d\u306b\u3001\u7bc4\u56f2\u3068\u30a2\u30af\u30bf\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/solutions\/free-use-case-diagram-tool\/\"><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3<\/strong>\u00a0<\/a>\u306f\u79c1\u305f\u3061\u306b\u4ee5\u4e0b\u3092\u6559\u3048\u3066\u304f\u308c\u308b<strong>\u8ab0\u304c<\/strong>\u30b7\u30b9\u30c6\u30e0\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u4eba\u7269\u3068\u3001<strong>\u4f55\u304c\u3067\u304d\u308b\u304b<\/strong>\u3092\u5b9a\u7fa9\u3057\u3001\u3069\u306e\u3088\u3046\u306b\u5b9f\u884c\u3059\u308b\u304b\u3092\u6307\u5b9a\u305b\u305a\u306b\u5883\u754c\u3092\u660e\u78ba\u306b\u3059\u308b<em>\u3069\u3046\u3084\u3063\u3066<\/em>.<\/p>\n<p id=\"udOVOqT\"><img alt=\"VPasCode\u30c4\u30fc\u30eb\u304c\u3001\u9867\u5ba2\u3068\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u30a2\u30af\u30bf\u30fc\u3092\u542b\u3080\u96fb\u5b50\u5546\u53d6\u5f15\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3\u3092\u8868\u793a\u3057\u3066\u3044\u308b\u3002\" class=\"alignnone size-full wp-image-19654\" decoding=\"async\" height=\"867\" loading=\"lazy\" sizes=\"auto, (max-width: 1913px) 100vw, 1913px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9.png 1913w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9-300x136.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9-1024x464.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9-768x348.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cd4640f9-1536x696.png 1536w\" width=\"1913\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\nskinparam linetype ortho\r\nskinparam defaultFontSize 14\r\nskinparam defaultFontColor #333333\r\nleft to right direction\r\ntitle \u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30b7\u30b9\u30c6\u30e0\r\n\r\nactor \"\u9867\u5ba2\" as CUST\r\nactor \"\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\" as PGW\r\n\r\nrectangle \"\u30aa\u30f3\u30e9\u30a4\u30f3\u30b9\u30c8\u30a2\" {\r\n  usecase \"\u30ab\u30bf\u30ed\u30b0\u3092\u95b2\u89a7\" as UC1\r\n  usecase \"\u30ab\u30fc\u30c8\u306b\u8ffd\u52a0\" as UC2\r\n  usecase \"\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\" as UC3\r\n  usecase \"\u6c7a\u6e08\u51e6\u7406\" as UC4\r\n  usecase \"\u6ce8\u6587\u3092\u78ba\u8a8d\" as UC5\r\n}\r\n\r\nCUST --&gt; UC1\r\nCUST --&gt; UC2\r\nCUST --&gt; UC3\r\nUC3 ..&gt; UC4 : &lt;&lt;include&gt;&gt;\r\nUC3 ..&gt; UC5 : &lt;&lt;include&gt;&gt;\r\nPGW --&gt; UC4\r\n@enduml\r\n<\/code><\/pre>\n<h3>\u30b9\u30c6\u30c3\u30d72\uff1a<a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a><\/h3>\n<p>\u300c<em>\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u300d<\/em>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u53d6\u308a\u4e0a\u3052\u3001<strong>\u6b63\u78ba\u306b\u3069\u306e\u3088\u3046\u306b<\/strong>\u5354\u8abf\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u6642\u9593\u3092\u304b\u3051\u3066\u305d\u308c\u3092\u5b9f\u884c\u3059\u308b\u304b\u3092\u8a73\u7d30\u306b\u8a18\u8ff0\u3059\u308b\u3002\u3053\u308c\u304c\u79c1\u305f\u3061\u306e\u632f\u308b\u821e\u3044\u30e2\u30c7\u30eb\u306e\u6838\u3068\u306a\u308b\u3002<\/p>\n<p id=\"JFaiFHy\"><img alt=\"\u30aa\u30f3\u30e9\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3067\u3001\u9867\u5ba2\u3001Web UI\u3001\u6ce8\u6587\u30b5\u30fc\u30d3\u30b9\u3001\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3001\u5728\u5eab\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9593\u306e\u6642\u9593\u9806\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u793a\u3057\u3066\u3044\u308b\u3002\" class=\"alignnone size-full wp-image-19655\" decoding=\"async\" height=\"897\" loading=\"lazy\" sizes=\"auto, (max-width: 792px) 100vw, 792px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cf099d25.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cf099d25.png 792w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cf099d25-265x300.png 265w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704cf099d25-768x870.png 768w\" width=\"792\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\nskinparam linetype ortho\r\nskinparam defaultFontSize 14\r\nskinparam defaultFontColor #333333\r\nskinparam sequenceParticipant underline\r\nskinparam vpDiagramType InteractionDiagram\r\nskinparam {\r\n  FontSize 14\r\n  ArrowColor #4A4A4A\r\n  ArrowFontColor #4A4A4A\r\n  BackgroundColor #FFFFFF\r\n  BorderColor #DEDEDE\r\n  FontColor #333333\r\n\r\n  Participant {\r\n    BorderColor #0077B6\r\n    BackgroundColor #F0F8FF\r\n    FontColor #005691\r\n  }\r\n\r\n  Actor {\r\n    BorderColor #6A057F\r\n    BackgroundColor #F5EEF8\r\n    FontColor #510363\r\n  }\r\n\r\n  Sequence {\r\n    ArrowThickness 2\r\n    LifeLineBorderColor #444444\r\n    LifeLineBackgroundColor #F7F7F7\r\n    BoxBorderColor #AAAAAA\r\n    BoxBackgroundColor #FFFFFF\r\n    BoxFontColor #333333\r\n  }\r\n}\r\n\r\ntitle \u30aa\u30f3\u30e9\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\r\n\r\nactor \"\u9867\u5ba2\" as CUST\r\nparticipant \"Web UI\" as UI\r\nparticipant \"\u6ce8\u6587\u30b5\u30fc\u30d3\u30b9\" as OSVC\r\nparticipant \"\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\" as PGW\r\ndatabase \"\u5728\u5eab\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\" as IDB\r\n\r\nactivate CUST\r\nactivate UI\r\nCUST -&gt; UI : \u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3092\u63d0\u51fan(\u30ab\u30fc\u30c8ID\u3001\u914d\u9001\u5148)\r\nactivate OSVC\r\nUI -&gt; OSVC : createOrder(\u30ab\u30fc\u30c8ID)\r\ndeactivate UI\r\nalt \u6ce8\u6587\u304c\u691c\u8a3c\u6e08\u307f\r\n    activate IDB\r\n    OSVC -&gt; IDB : reserveItems(\u30ab\u30fc\u30c8ID)\r\n    IDB --&gt; OSVC : \u5728\u5eab\u3092\u4e88\u7d04\r\n    deactivate IDB\r\n    OSVC -&gt; PGW : charge(\u30ab\u30fc\u30c9, \u91d1\u984d)\r\n    activate PGW\r\n    alt \u6c7a\u6e08\u627f\u8a8d\r\n        PGW --&gt; OSVC : \u627f\u8a8d\u6e08\u307fn(\u53c2\u7167ID)\r\n        OSVC -&gt; IDB : confirmOrder(\u6ce8\u6587ID)\r\n        activate IDB\r\n        IDB --&gt; OSVC : \u6ce8\u6587\u3092\u6c38\u7d9a\u5316\r\n        deactivate IDB\r\n        OSVC --&gt; CUST : \u6ce8\u6587\u3092\u78ba\u8a8dn(\u6ce8\u6587ID + \u8acb\u6c42\u66f8)\r\n    else \u6c7a\u6e08\u5374\u4e0b\r\n        PGW --&gt; OSVC : \u5374\u4e0bn(\u7406\u7531\u30b3\u30fc\u30c9)\r\n        OSVC --&gt; CUST : \u6c7a\u6e08\u5931\u6557n(\u518d\u8a66\u884c\u3057\u3066\u304f\u3060\u3055\u3044)\r\n    else \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30a8\u30e9\u30fc\r\n        PGW --&gt; OSVC : \u30a8\u30e9\u30fcn\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\r\n        OSVC --&gt; CUST : \u30a8\u30e9\u30fcn(\u30b5\u30dd\u30fc\u30c8\u306b\u9023\u7d61\u3057\u3066\u304f\u3060\u3055\u3044)\r\n    end\r\n    deactivate PGW\r\nelse \u6ce8\u6587\u304c\u7121\u52b9\r\n    OSVC --&gt; CUST : \u5728\u5eab\u4e0d\u8db3n\u307e\u305f\u306f\u7121\u52b9\u306a\u30ab\u30fc\u30c8\r\nend\r\ndeactivate OSVC\r\n@enduml\r\n<\/code><\/pre>\n<p><strong>\u4e3b\u306a\u6d1e\u5bdf\uff1a<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>\u6b63\u78ba\u306a\u547c\u3073\u51fa\u3057\u9806\u5e8f\uff1a<\/strong>\u00a0<code data-backticks=\"1\">createOrder<\/code>\u306f\u2026\u306e\u524d\u306b\u767a\u751f\u3059\u308b<code data-backticks=\"1\">reserveItems<\/code>\u306f\u2026\u306e\u524d\u306b\u767a\u751f\u3059\u308b<code data-backticks=\"1\">charge<\/code>.<\/li>\n<li><strong>\u540c\u671f\u7684 vs \u975e\u540c\u671f\u7684\uff1a<\/strong>\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u306f\u300c\u30b3\u30fc\u30eb\u30b9\u30bf\u30c3\u30af\u300d\u3092\u793a\u3057\u3001\u6ce8\u6587\u30b5\u30fc\u30d3\u30b9\u304c\u652f\u6255\u3044\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u5fdc\u7b54\u3092\u5f85\u3063\u3066\u3044\u308b\u9593\u3001\u3069\u3053\u3067\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u308b\u3002<\/li>\n<li><strong>\u5206\u5c90\u3068\u30a8\u30e9\u30fc\uff1a<\/strong>\u00a0<code data-backticks=\"1\">alt<\/code>\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u306f\u3001\u627f\u8a8d\u6e08\u307f\u3001\u5374\u4e0b\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30a8\u30e9\u30fc\u3001\u7121\u52b9\u306a\u30ab\u30fc\u30c8\u306e\u7d50\u679c\u3092\u3001\u6642\u9593\u9806\u306e\u8996\u70b9\u3067\u4e00\u5ea6\u306b\u6349\u3048\u3066\u3044\u308b\u3002<\/li>\n<li><strong>\u8fd4\u4fe1\u30c1\u30e3\u30cd\u30eb\uff1a<\/strong>\u7834\u7dda\u306e\u8fd4\u4fe1\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001\u7d50\u679c\u3092\u547c\u3073\u51fa\u3057\u5143\u306b\u8fd4\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d73\uff1a\u30af\u30e9\u30b9\u56f3\u3092\u4f7f\u3063\u3066\u69cb\u9020\u3092\u691c\u8a3c\u3059\u308b<\/h3>\n<p>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u2026\u3092\u793a\u3057\u3066\u3044\u308b<em>\u3069\u306e\u3088\u3046\u306b<\/em>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u5354\u50cd\u3059\u308b\u304c\u3001\u305d\u306e\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8868\u3059<strong>\u578b<\/strong>\u304c\u5b58\u5728\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u305d\u306e<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\"><strong>\u30af\u30e9\u30b9\u56f3<\/strong><\/a>\u306f\u69cb\u9020\u7684\u306a\u57fa\u76e4\u3092\u63d0\u4f9b\u3059\u308b\u2014\u5c5e\u6027\u3001\u64cd\u4f5c\u3001\u95a2\u4fc2\u6027\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<p id=\"ZJndbeY\"><img alt=\"\u96fb\u5b50\u5546\u53d6\u5f15\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u306e\u30af\u30e9\u30b9\u56f3\u3067\u3001\u9867\u5ba2\u3001\u30ab\u30fc\u30c8\u3001\u6ce8\u6587\u3001\u6ce8\u6587\u30b5\u30fc\u30d3\u30b9\u306e\u95a2\u4fc2\u3092\u53ef\u8996\u5316\u3057\u3066\u3044\u308b\u3002\" class=\"alignnone size-full wp-image-19656\" decoding=\"async\" height=\"867\" loading=\"lazy\" sizes=\"auto, (max-width: 1911px) 100vw, 1911px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c.png 1911w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c-300x136.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c-1024x465.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c-768x348.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/img_6a704d2ee180c-1536x697.png 1536w\" width=\"1911\"\/><\/p>\n<pre class=\"lang-puml\"><code data-language=\"puml\">@startuml\r\nskinparam linetype ortho\r\nskinparam defaultFontSize 14\r\nskinparam defaultFontColor #333333\r\ntitle E-Commerce\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30af\u30e9\u30b9\u56f3\r\n\r\nclass Customer {\r\n  - id : String\r\n  - name : String\r\n  - email : String\r\n  + getCart() : Cart\r\n}\r\n\r\nclass Cart {\r\n  - cartId : String\r\n  - items : List&lt;Item&gt;\r\n  + addItem(item) : void\r\n  + computeTotal() : Money\r\n}\r\n\r\nclass Order {\r\n  - orderId : String\r\n  - status : OrderStatus\r\n  - shippingAddress : String\r\n  + confirm() : void\r\n}\r\n\r\nclass OrderService {\r\n  + createOrder(cartId) : Order\r\n  + confirmOrder(orderId) : void\r\n}\r\n\r\nclass PaymentGateway {\r\n  + charge(card, amount) : Result\r\n}\r\n\r\nclass InventoryDb {\r\n  + reserveItems(cartId) : boolean\r\n  + confirmOrder(orderId) : void\r\n}\r\n\r\nCustomer \"1\" --&gt; \"1\" Cart\r\nCart \"1\" --&gt; \"*\" Order\r\nOrderService \"1\" --&gt; \"1\" Cart\r\nOrderService --&gt; Order\r\nOrderService --&gt; PaymentGateway\r\nOrderService --&gt; InventoryDb\r\n@enduml\r\n<\/code><\/pre>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u5185\u306e\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u304c\u3001\u5fc5\u8981\u306a\u64cd\u4f5c\u3092\u6301\u3064\u5b9f\u969b\u306e\u3001\u826f\u597d\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30af\u30e9\u30b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3002<\/p>\n<hr\/>\n<h2>5. \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u4ed6\u306eUML\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3068\u7d71\u5408\u3059\u308b<\/h2>\n<p>\u3088\u304f\u30e2\u30c7\u30eb\u5316\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u306f\u3044\u304f\u3064\u304b\u306e<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/uml-tool\/\">UML\u56f3<\/a>\u3092\u4e00\u7dd2\u306b\u4f7f\u7528\u3059\u308b\u3002\u305d\u308c\u305e\u308c\u304c\u30b7\u30b9\u30c6\u30e0\u306e\u57fa\u672c\u7684\u306a\u5074\u9762\u3092\u6349\u3048\u3066\u3044\u308b\u305f\u3081\u3067\u3042\u308b\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f<em>\u52d5\u7684\u5354\u50cd<\/em>\u3092\u6271\u3046\u4e00\u65b9\u3001\u4ed6\u306e\u56f3\u306f\u69cb\u9020\u3001\u7bc4\u56f2\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3092\u30ab\u30d0\u30fc\u3059\u308b\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u88dc\u8db3\u56f3<\/th>\n<th align=\"left\">\u6349\u3048\u3089\u308c\u308b\u5074\u9762<\/th>\n<th align=\"left\">\u306a\u305c\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u306e\u304b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\"><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u30a2\u30af\u30bf\u30fc\u2013\u30b7\u30b9\u30c6\u30e0\u306e\u7bc4\u56f2\u3068\u76ee\u7684<\/td>\n<td align=\"left\">\u5b9a\u7fa9\u3059\u308b<em>\u3069\u306e<\/em>\u30b7\u30ca\u30ea\u30aa\u306f\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306b\u3075\u3055\u308f\u3057\u3044\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u52d5\u4f5c\u306e\u8a73\u7d30\u3092\u793a\u3059\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3092\u6d17\u7df4\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-class-diagram\/\"><strong>\u30af\u30e9\u30b9\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u9759\u7684\u69cb\u9020\u3068\u578b<\/td>\n<td align=\"left\">\u30b7\u30fc\u30b1\u30f3\u30b9\u3067\u53c2\u7167\u3055\u308c\u308b\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u306e\u578b\u3068\u64cd\u4f5c\u3092\u63d0\u4f9b\u3059\u308b\u3002\u3053\u308c\u306f\u9759\u7684\u30d3\u30e5\u30fc\u3067\u3042\u308a\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u306f\u52d5\u7684\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30d3\u30e5\u30fc\u3067\u3042\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-state-machine-diagram\/\"><strong>\u72b6\u614b\u6a5f\u68b0\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u5358\u4e00\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb<\/td>\n<td align=\"left\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08\u4f8b\uff1a<code data-backticks=\"1\">\u6ce8\u6587<\/code>\uff09\u304c\u72b6\u614b\u9593\u3092\u79fb\u52d5\u3059\u308b\u69d8\u5b50\u3092\u793a\u3059\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u3053\u308c\u3089\u306e\u9077\u79fb\u3092\u5f15\u304d\u8d77\u3053\u3059\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u793a\u3059\u3002<em>\u5f15\u304d\u8d77\u3053\u3059<\/em>\u3053\u308c\u3089\u306e\u9077\u79fb\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><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<\/strong><\/a><\/td>\n<td align=\"left\">\u5168\u4f53\u306e\u30d5\u30ed\u30fc\u3001\u4e26\u5217\u6027\u3001\u610f\u601d\u6c7a\u5b9a<\/td>\n<td align=\"left\">\u9ad8\u30ec\u30d9\u30eb\u306e\u30d3\u30b8\u30cd\u30b9\uff0f\u30d7\u30ed\u30bb\u30b9\u30d5\u30ed\u30fc\u3092\u63d0\u4f9b\u3059\u308b\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u7279\u5b9a\u306e\u30b9\u30c6\u30c3\u30d7\u306e\u6280\u8853\u7684\u30e1\u30c3\u30bb\u30fc\u30b8\u30ec\u30d9\u30eb\u306e\u76f8\u4e92\u4f5c\u7528\u306b\u6ce8\u76ee\u3059\u308b\u3002<em>\u6280\u8853\u7684\u30e1\u30c3\u30bb\u30fc\u30b8\u30ec\u30d9\u30eb<\/em>\u7279\u5b9a\u306e\u30b9\u30c6\u30c3\u30d7\u306e\u76f8\u4e92\u4f5c\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-component-diagram\/\"><strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u7269\u7406\u7684\uff0f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u69cb\u6210\u8981\u7d20<\/td>\n<td align=\"left\">\u5c55\u958b\u3055\u308c\u305f\u30d6\u30e9\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u793a\u3059\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6d41\u308c\u3092\u660e\u3089\u304b\u306b\u3059\u308b\u3002<em>\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6d41\u308c<\/em>\u305d\u308c\u3089\u306e\u9593\u3067\u7d50\u5408\u3092\u9732\u5448\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-deployment-diagram\/\"><strong>\u914d\u7f6e\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\/\u30ce\u30fc\u30c9\u304a\u3088\u3073\u914d\u7f6e<\/td>\n<td align=\"left\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9045\u5ef6\u304a\u3088\u3073\u7269\u7406\u7684\u306a\u30b5\u30fc\u30d3\u30b9\u4f4d\u7f6e\u3092\u691c\u8a3c\u3057\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u5185\u306e\u8ad6\u7406\u7684\u76f8\u4e92\u4f5c\u7528\u3092\u88dc\u5b8c\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-communication-diagram\/\"><strong>\u901a\u4fe1\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u76f8\u4e92\u4f5c\u7528\u69cb\u9020\u3092\u6700\u512a\u5148<\/td>\n<td align=\"left\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u4ee3\u66ff\u7684\u306a\u8996\u70b9\u3067\u3042\u308a\u3001\u300c\u6642\u9593\u9806\u5e8f\u300d\u3092\u300c\u30ea\u30f3\u30af\u69cb\u9020\u300d\u306b\u7f6e\u304d\u63db\u3048\u308b\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u9593\u306e\u76f4\u63a5\u7684\u306a\u63a5\u7d9a\u3092\u5f37\u8abf\u3059\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-timing-diagram\/\"><strong>\u30bf\u30a4\u30df\u30f3\u30b0\u56f3<\/strong><\/a><\/td>\n<td align=\"left\">\u6b63\u78ba\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u5236\u7d04<\/td>\n<td align=\"left\">\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u4fdd\u8a3c\uff08\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3001\u30c7\u30c3\u30c9\u30e9\u30a4\u30f3\uff09\u304c\u91cd\u8981\u3067\u3042\u308b\u5834\u5408\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u88dc\u5b8c\u3059\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u91cd\u8981\u306a\u6d1e\u5bdf\uff1a\u69cb\u6210\u304c\u91cd\u8981\u3067\u3042\u308b<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/guides.visual-paradigm.com\/creating-sequence-diagrams-with-a-use-case-driven-approach-a-comprehensive-guide\/\">\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\uff0b\u30b7\u30fc\u30b1\u30f3\u30b9<\/a>:<\/strong>\u5b9a\u7fa9\u3059\u308b<em>\u4f55\u3092<\/em>\u69cb\u7bc9\u3059\u308b\u304b\u3092\u3001\u305d\u3057\u3066<em>\u3069\u306e\u3088\u3046\u306b<\/em>\u52d5\u4f5c\u3059\u308b\u304b\u3092\u3002<\/li>\n<li><strong><a href=\"https:\/\/www.archimetric.com\/overview-of-the-14-uml-diagram-types-a-beginners-guide\/\">\u30af\u30e9\u30b9\/\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\uff0b\u30b7\u30fc\u30b1\u30f3\u30b9<\/a>:<\/strong>\u5b9a\u7fa9\u3059\u308b<em>\u5b58\u5728\u3059\u308b\u3082\u306e<\/em>\u304a\u3088\u3073<em>\u3069\u306e\u3088\u3046\u306b\u901a\u4fe1\u3059\u308b\u304b<\/em>\u3002\u3053\u308c\u3089\u306f\u4e00\u4f53\u3068\u306a\u3063\u3066\u3001\u5b8c\u5168\u306a\u9759\u7684\uff0b\u52d5\u7684\u306a\u56f3\u3092\u5f62\u6210\u3059\u308b\u3002<\/li>\n<li><strong><a href=\"https:\/\/www.archimetric.com\/overview-of-the-14-uml-diagram-types-a-beginners-guide\/\">\u72b6\u614b\u6a5f\u68b0\uff0b\u30b7\u30fc\u30b1\u30f3\u30b9<\/a>:<\/strong>\u53ef\u80fd\u306a<em>\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u72b6\u614b<\/em>\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u9593\u3092\u79fb\u52d5\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8<em>\u79fb\u52d5\u3055\u305b\u308b<\/em>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u305d\u308c\u3089\u306e\u9593\u3067\u79fb\u52d5\u3055\u305b\u308b\u3002<\/li>\n<li><strong><a href=\"https:\/\/www.archimetric.com\/overview-of-the-14-uml-diagram-types-a-beginners-guide\/\">\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\uff0b\u30b7\u30fc\u30b1\u30f3\u30b9<\/a>:<\/strong>\u5b9a\u7fa9\u3059\u308b<em>\u30d3\u30b8\u30cd\u30b9\u30d7\u30ed\u30bb\u30b9<\/em>\u304a\u3088\u3073<em>\u6280\u8853\u7684\u30d7\u30ed\u30c8\u30b3\u30eb<\/em>\u5404\u30b9\u30c6\u30c3\u30d7\u306b\u3064\u3044\u3066\u3002<\/li>\n<\/ul>\n<p>\u5358\u4e00\u306e<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/uml-tool\/\">UML\u56f3<\/a>\u306f\u5341\u5206\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/sequence-diagram-software\/\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>\u306f\u6838\u5fc3\u7684\u306a\u632f\u308b\u821e\u3044\u306e\u8ca0\u8377\u3092\u62c5\u3044\u307e\u3059\u304c\u3001\u4ed6\u306e\u56f3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u6700\u3082\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059<a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a>, <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\">\u30af\u30e9\u30b9<\/a>, <a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/state-machine-diagram-software\/\">\u72b6\u614b<\/a>\u3001\u304a\u3088\u3073<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/component-diagram-software\/\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u56f3<\/a>.<\/p>\n<hr\/>\n<h2>6. \u52b9\u679c\u7684\u306a\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<ol>\n<li><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304b\u3089\u59cb\u3081\u308b\uff1a<\/strong>\u56f3\u3054\u3068\u306b1\u3064\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3002\u3059\u3079\u3066\u306e\u53ef\u80fd\u306a\u7d4c\u8def\u30921\u3064\u306e\u56f3\u306b\u62bc\u3057\u8fbc\u307e\u306a\u3044\u3002<\/li>\n<li><strong>\u53c2\u52a0\u8005\u3092\u5236\u9650\u3059\u308b\uff1a<\/strong>\u30e9\u30a4\u30d5\u30e9\u30a4\u30f3\u30923\uff5e7\u4eba\u306e\u53c2\u52a0\u8005\u306b\u6291\u3048\u308b\u3002\u53c2\u52a0\u8005\u304c\u591a\u3059\u304e\u308b\u3068\u8aad\u307f\u306b\u304f\u304f\u306a\u308b\u305f\u3081\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30cd\u30b9\u30c8\u3055\u308c\u305f\u76f8\u4e92\u4f5c\u7528\u306b\u5206\u5272\u3059\u308b\u3002<\/li>\n<li><strong>\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30b7\u30e7\u30f3\u30d0\u30fc\u3092\u8868\u793a\u3059\u308b\uff1a<\/strong>\u3053\u308c\u306b\u3088\u308a\u3001\u547c\u3073\u51fa\u3057\u306e\u30cd\u30b9\u30c8\uff08\u300c\u30b3\u30fc\u30eb\u30b9\u30bf\u30c3\u30af\u300d\uff09\u304c\u4e00\u76ee\u3067\u628a\u63e1\u3067\u304d\u308b\u3002<\/li>\n<li><strong>\u5236\u5fa1\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/strong>\u00a0\u6d3b\u7528\u3059\u308b\u00a0<code data-backticks=\"1\">alt<\/code>\u00a0\uff08\u4ee3\u66ff\uff09,\u00a0<code data-backticks=\"1\">opt<\/code>\u00a0\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09, \u305d\u3057\u3066\u00a0<code data-backticks=\"1\">loop<\/code>\u00a0\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3092\u7528\u3044\u3066\u3001\u5225\u3005\u306e\u56f3\u3092\u63cf\u304b\u305a\u306b\u5206\u5c90\u3084\u53cd\u5fa9\u3092\u8868\u73fe\u3059\u308b\u3002<\/li>\n<li><strong>\u77e2\u5370\u3092\u610f\u56f3\u7684\u306b\u9078\u629e\u3059\u308b\uff1a<\/strong>\u00a0\u540c\u671f\u547c\u3073\u51fa\u3057\u306b\u306f\u5b9f\u7dda\u77e2\u5370\u3092\u3001\u975e\u540c\u671f\u5fdc\u7b54\u306b\u306f\u7834\u7dda\u306e\u958b\u653e\u77e2\u5370\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<li><strong>\u30bd\u30fc\u30b9\u7ba1\u7406\u3092\u5fb9\u5e95\u3059\u308b\uff1a<\/strong>\u00a0\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3059\u308b\u30b3\u30fc\u30c9\u306e\u96a3\u306b\u56f3\u306e\u30b3\u30fc\u30c9\uff08\u4f8b\uff1aPlantUML\uff09\u3092\u57cb\u3081\u8fbc\u307f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u305a\u308c\u3092\u9632\u3050\u3002<\/li>\n<li><strong>\u30b7\u30ca\u30ea\u30aa\u306e\u5b8c\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\uff1a<\/strong>\u00a0\u6210\u529f\u7d4c\u8def\u306b\u52a0\u3048\u3001\u73fe\u5b9f\u7684\u306a\u5931\u6557\uff0f\u30a8\u30e9\u30fc\u7d4c\u8def\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u62c5\u5f53\u8005\u3084\u30ec\u30d3\u30e5\u30fc\u62c5\u5f53\u8005\u304c\u5b8c\u5168\u306a\u52d5\u4f5c\u3092\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/li>\n<\/ol>\n<hr\/>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u3053\u306e\u00a0<a href=\"https:\/\/www.visual-paradigm.com\/\">UML<\/a> <a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\">\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/a>\u00a0\u306f\u3001\u73fe\u5b9f\u4e16\u754c\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u6700\u3082\u91cd\u8981\u306a\u6b21\u5143\u3092\u6349\u3048\u308b\u305f\u3081\u3001\u52b9\u679c\u7684\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u57fa\u76e4\u3068\u306a\u3063\u3066\u3044\u308b\uff1a\u00a0<strong>\u6642\u7cfb\u5217\u9806\u306e\u5354\u8abf\u52d5\u4f5c<\/strong>\u3002\u76f4\u611f\u7684\u3067\u3001\u7d20\u65e9\u304f\u4f5c\u6210\u3067\u304d\u3001\u540c\u671f\uff0f\u975e\u540c\u671f\u306e\u30d5\u30ed\u30fc\u3001\u5206\u5c90\u8ad6\u7406\u3001\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u72ec\u81ea\u306b\u8868\u73fe\u3067\u304d\u308b\u3002<\/p>\n<p class=\"\">\u3057\u304b\u3057\u3001\u305d\u306e\u771f\u306e\u529b\u306f\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u305f\u5834\u5408\u306b\u306e\u307f\u767a\u63ee\u3055\u308c\u308b\u3002\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3092\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/use-case-diagram-software\/\"><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u56f3<\/strong><\/a>\u30b9\u30b3\u30fc\u30d7\u306e\u305f\u3081\u3001\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/solutions\/free-class-diagram-tool\/\"><strong>\u30af\u30e9\u30b9\u56f3<\/strong><\/a>\u69cb\u9020\u306e\u305f\u3081\u3001\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/state-machine-diagram-software\/\"><strong>\u30b9\u30c6\u30fc\u30c8\u30de\u30b7\u30f3<\/strong><\/a>\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u305f\u3081\u3001\u304a\u3088\u3073\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/activity-diagram-software\/\"><strong>\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3<\/strong><\/a>\u00a0\u306e\u305f\u3081\u306e\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/bpmn-tool\/\">\u30d7\u30ed\u30bb\u30b9\u30d5\u30ed\u30fc<\/a>\u30c1\u30fc\u30e0\u306f\u3001\u5358\u7d14\u306a\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30d5\u30ed\u30fc\u3092\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u5305\u62ec\u7684\u3067\u30ca\u30d3\u30b2\u30fc\u30c8\u53ef\u80fd\u306a\u30e2\u30c7\u30eb\u306b\u5909\u63db\u3067\u304d\u308b\u3002\u30d3\u30b8\u30cd\u30b9\u30b9\u30b3\u30fc\u30d7\u304b\u3089\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30d7\u30ed\u30c8\u30b3\u30eb\u307e\u3067\u3001\u3053\u306e\u7d71\u5408\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u660e\u78ba\u6027\u304c\u78ba\u4fdd\u3055\u308c\u3001\u66d6\u6627\u3055\u304c\u8efd\u6e1b\u3055\u308c\u3001\u6210\u529f\u88cf\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u63d0\u4f9b\u304c\u5b9f\u73fe\u3059\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u306e\u8907\u96d1\u306a\u4e16\u754c\u306b<\/p>\n","protected":false},"author":11,"featured_media":11354,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","source_url":"","source_h1_title":"","fifu_image_url":"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions.jpg","fifu_image_alt":"","_fifu_image_alt":"","fifu_alt":"","_fifu_alt":"","fifu_image_title":"","_fifu_image_title":"","fifu_input_alt":"","vp_image_hash":"","footnotes":""},"categories":[79,3],"tags":[],"asset-category":[],"class_list":["post-11353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-chatbot","category-unified-modeling-language"],"source_url":"","source_h1_title":"","fifu_image_url":"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/08\/uml-sequence-diagram-guide-time-ordered-interactions.jpg","fifu_image_alt":"","vp_image_hash":"","yoast_head":"<!-- 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content=\"UML\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306e\u7fd2\u5f97\uff1a\u6642\u7cfb\u5217\u9806\u5e8f\u4ed8\u304d\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9 - \u30b5\u30a4\u30d0\u30fc\u30e1\u30c7\u30a3\u30a2\u30f3\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u306e\u8907\u96d1\u306a\u4e16\u754c\u306b\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cybermedian.com\/ja\/uml-sequence-diagrams-guide-modeling-time-ordered-interactions\/\" \/>\n<meta property=\"og:site_name\" content=\"\u30b5\u30a4\u30d0\u30fc\u30e1\u30c7\u30a3\u30a2\u30f3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-03T08:24:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-03T14:38:29+00:00\" \/>\n<meta property=\"og:image\" 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