{"id":1487,"date":"2026-04-14T17:56:30","date_gmt":"2026-04-14T09:56:30","guid":{"rendered":"https:\/\/mayaharper.showcasingme.net\/ja\/uml-object-diagrams-visual-guide-developers\/"},"modified":"2026-04-14T17:56:30","modified_gmt":"2026-04-14T09:56:30","slug":"uml-object-diagrams-visual-guide-developers","status":"publish","type":"post","link":"https:\/\/mayaharper.showcasingme.net\/ja\/uml-object-diagrams-visual-guide-developers\/","title":{"rendered":"UML\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\uff1a\u958b\u767a\u8005\u306e\u305f\u3081\u306e\u8996\u899a\u7684\u8a00\u8a9e"},"content":{"rendered":"<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u8907\u96d1\u306a\u9818\u57df\u306b\u304a\u3044\u3066\u3001\u660e\u78ba\u3055\u304c\u6700\u3082\u91cd\u8981\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u304c\u8907\u96d1\u3055\u3092\u5897\u3059\u3068\u3001\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u9759\u7684\u69cb\u9020\u3060\u3051\u3067\u306f\u3001\u7279\u5b9a\u306e\u5b9f\u884c\u6642\u72b6\u614b\u3092\u5341\u5206\u306b\u6349\u3048\u308b\u3053\u3068\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u3001<strong>UML\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3<\/strong>\u304c\u767b\u5834\u3059\u308b\u7406\u7531\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u7279\u5b9a\u306e\u77ac\u9593\u306b\u304a\u3051\u308b\u30b7\u30b9\u30c6\u30e0\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30af\u30e9\u30b9\u306e\u5177\u4f53\u7684\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u305d\u308c\u3089\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u56f3\u304c\u8a2d\u8a08\u56f3\u3092\u5b9a\u7fa9\u3059\u308b\u306e\u306b\u5bfe\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u5b9f\u969b\u306b\u914d\u7f6e\u3055\u308c\u305f\u5b9f\u969b\u306e\u69cb\u6210\u8981\u7d20\u3092\u63cf\u5199\u3057\u307e\u3059\u3002<\/p>\n<p>\u958b\u767a\u8005\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3001\u6280\u8853\u95a2\u4fc2\u8005\u306b\u3068\u3063\u3066\u3001\u3053\u308c\u3089\u306e\u56f3\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30c7\u30d0\u30c3\u30b0\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u4f5c\u6210\u3001\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3068\u306f\u4f55\u304b\u3001\u3069\u306e\u3088\u3046\u306b\u8aad\u307f\u89e3\u304f\u304b\u3001\u958b\u767a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u4e2d\u3067\u3044\u3064\u4f7f\u7528\u3059\u3079\u304d\u304b\u3092\u5305\u62ec\u7684\u306b\u691c\u8a0e\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image aligncenter\"><img alt=\"Hand-drawn infographic explaining UML Object Diagrams for developers: features cookie-cutter analogy comparing classes to objects, side-by-side class vs object diagram comparison, core elements visualization (objects with instance:class notation, labeled links, multiplicity indicators), four practical use cases (debugging, database design, API documentation, team onboarding), and best practices checklist for creating clear object diagrams in software development\" decoding=\"async\" src=\"https:\/\/mayaharper.showcasingme.net\/wp-content\/uploads\/2026\/04\/uml-object-diagrams-visual-guide-hand-drawn-infographic.jpg\"\/><\/figure>\n<h2>\ud83d\udd0d \u72b6\u614b\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306e\u7406\u89e3<\/h2>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3001\u7d71\u5408\u30e2\u30c7\u30eb\u5316\u8a00\u8a9e\uff08UML\uff09\u306b\u304a\u3051\u308b\u9759\u7684\u69cb\u9020\u56f3\u306e\u7279\u6b8a\u306a\u30bf\u30a4\u30d7\u3067\u3059\u3002\u7279\u5b9a\u306e\u6642\u70b9\u306b\u5b58\u5728\u3059\u308b\u30af\u30e9\u30b9\u306e\u5177\u4f53\u7684\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002\u30af\u30e9\u30b9\u56f3\u304c\u632f\u308b\u821e\u3044\u3084\u69cb\u9020\u306e\u53ef\u80fd\u6027\u3092\u8a18\u8ff0\u3059\u308b\u306e\u306b\u5bfe\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u5b9f\u884c\u4e2d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u969b\u306e\u72b6\u614b\u3001\u307e\u305f\u306f\u7279\u5b9a\u306e\u8a2d\u8a08\u30b7\u30ca\u30ea\u30aa\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p>\u30af\u30e9\u30b9\u3092\u30af\u30c3\u30ad\u30fc\u30ab\u30c3\u30bf\u30fc\u306b\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u30af\u30c3\u30ad\u30fc\u305d\u306e\u3082\u306e\u306b\u4f8b\u3048\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002\u30ab\u30c3\u30bf\u30fc\u306f\u5f62\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u304c\u3001\u30af\u30c3\u30ad\u30fc\u306f\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u306e\u9055\u3044\u306f\u3001\u4ee5\u4e0b\u306e\u72b6\u6cc1\u306b\u304a\u3044\u3066\u7279\u306b\u91cd\u8981\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u5b9f\u884c\u6642\u30c7\u30d0\u30c3\u30b0\uff1a<\/strong>\u30d0\u30b0\u304c\u767a\u751f\u3057\u305f\u969b\u306e\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u53ef\u8996\u5316\u3059\u308b\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\uff1a<\/strong>\u7279\u5b9a\u306e\u30ec\u30b3\u30fc\u30c9\u3068\u305d\u308c\u3089\u306e\u95a2\u4fc2\u6027\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3002<\/li>\n<li><strong>API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff1a<\/strong>\u671f\u5f85\u3055\u308c\u308b\u5165\u529b\u304a\u3088\u3073\u51fa\u529b\u69cb\u9020\u3092\u793a\u3059\u3002<\/li>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u5206\u6790\uff1a<\/strong>\u7279\u5b9a\u306e\u6587\u8108\u306b\u304a\u3051\u308b\u95a2\u4fc2\u6027\u306e\u8907\u96d1\u3055\u3092\u7406\u89e3\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u56f3\u306f\u9759\u7684\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u8868\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6642\u9593\u306b\u57fa\u3065\u304f\u632f\u308b\u821e\u3044\u3084\u9806\u5e8f\u306f\u793a\u3057\u307e\u305b\u3093\u3002\u77ac\u9593\u3092\u51cd\u7d50\u3057\u305f\u72b6\u614b\u3067\u3059\u3002\u3053\u306e\u5236\u9650\u306f\u540c\u6642\u306b\u5f37\u307f\u3067\u3082\u3042\u308a\u3001\u958b\u767a\u8005\u304c\u6642\u9593\u7684\u5909\u5316\u306e\u30ce\u30a4\u30ba\u3092\u6392\u9664\u3057\u3066\u8907\u96d1\u306a\u72b6\u614b\u3092\u5206\u6790\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2>\ud83c\udfd7\ufe0f \u30af\u30e9\u30b9\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff1a\u9055\u3044\u306e\u7406\u89e3<\/h2>\n<p>\u30af\u30e9\u30b9\u56f3\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306e\u9593\u306b\u6df7\u4e71\u304c\u751f\u3058\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u591a\u304f\u306e\u8a18\u6cd5\u8981\u7d20\u3092\u5171\u6709\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u76ee\u7684\u3084\u5185\u5bb9\u306f\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306a\u30e2\u30c7\u30eb\u5316\u3078\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5fb4<\/th>\n<th>\u30af\u30e9\u30b9\u56f3<\/th>\n<th>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u7126\u70b9<\/strong><\/td>\n<td>\u578b\u306e\u5b9a\u7fa9<\/td>\n<td>\u7279\u5b9a\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\uff08\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8a18\u6cd5<\/strong><\/td>\n<td>\u30af\u30e9\u30b9\u540d<\/td>\n<td>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d\uff1a\u30af\u30e9\u30b9\u540d<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7bc4\u56f2<\/strong><\/td>\n<td>\u4e00\u822c\u7684\u3067\u518d\u5229\u7528\u53ef\u80fd\u306a\u8ad6\u7406<\/td>\n<td>\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u307e\u305f\u306f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5c5e\u6027<\/strong><\/td>\n<td>\u578b\u5b9a\u7fa9\uff08\u4f8b\uff1aString\uff09<\/td>\n<td>\u5b9f\u969b\u306e\u5024\uff08\u4f8b\uff1a&#8221;John&#8221;\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/strong><\/td>\n<td>\u9ad8\u30ec\u30d9\u30eb\u8a2d\u8a08\u3001\u30b9\u30ad\u30fc\u30de<\/td>\n<td>\u30c6\u30b9\u30c8\u3001\u30c7\u30d0\u30c3\u30b0\u3001\u30c7\u30fc\u30bf\u5206\u6790<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u8868\u8a18\u6cd5\u306f\u3001\u901a\u5e38\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d\u306e\u5f8c\u306b\u30b3\u30ed\u30f3\u3068\u30af\u30e9\u30b9\u540d\u304c\u7d9a\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<code>User:Customer<\/code>\u306f\u540d\u524d\u304c<code>User<\/code>\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u793a\u3057\u307e\u3059\u3002<code>Customer<\/code>\u3053\u306e\u660e\u78ba\u306a\u30e9\u30d9\u30eb\u4ed8\u3051\u306b\u3088\u308a\u3001\u540c\u3058\u56f3\u5185\u3067\u306e\u540c\u4e00\u30af\u30e9\u30b9\u306e\u7570\u306a\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u533a\u5225\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\ud83e\udde9 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306e\u57fa\u672c\u8981\u7d20<\/h2>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u6b63\u78ba\u306b\u69cb\u7bc9\u307e\u305f\u306f\u89e3\u91c8\u3059\u308b\u306b\u306f\u3001\u305d\u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u8981\u7d20\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8981\u7d20\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u9020\u3068\u95a2\u4fc2\u3092\u4e00\u76ee\u3067\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3>1. \u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/h3>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u56f3\u306e\u4e3b\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3067\u3059\u3002\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8868\u3057\u307e\u3059\u3002\u8996\u899a\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u542b\u3080\u9577\u65b9\u5f62\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d\uff1a<\/strong> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7279\u5b9a\u306e\u8b58\u5225\u5b50\uff08\u4f8b\uff1a<code>order1<\/code>).<\/li>\n<li><strong>\u30af\u30e9\u30b9\u540d\uff1a<\/strong> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\uff08\u4f8b\uff1a<code>Order<\/code>).<\/li>\n<li><strong>\u5c5e\u6027\u5024\uff1a<\/strong> \u5f53\u8a72\u6642\u70b9\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u3002<\/li>\n<\/ul>\n<h3>2. \u30ea\u30f3\u30af<\/h3>\n<p>\u30ea\u30f3\u30af\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u9593\u306e\u95a2\u9023\u3092\u8868\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u56f3\u3067\u306f\u30af\u30e9\u30b9\u9593\u306e\u95a2\u9023\u3092\u7dda\u3067\u8868\u3057\u307e\u3059\u304c\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3067\u306f\u7279\u5b9a\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7d50\u3076\u305f\u3081\u306b\u30ea\u30f3\u30af\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30ea\u30f3\u30af\u306f\u672c\u8cea\u7684\u306b\u95a2\u9023\u306e\u5b9f\u73fe\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5b9f\u7dda\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u9593\u306e\u6a19\u6e96\u7684\u306a\u30ea\u30f3\u30af\u3092\u793a\u3059\u3002<\/li>\n<li><strong>\u7834\u7dda\uff1a<\/strong>\u5c0e\u51fa\u3055\u308c\u305f\u95a2\u4fc2\u3084\u5f31\u3044\u95a2\u9023\u3092\u793a\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<li><strong>\u77e2\u5370\u306e\u5148\u7aef\uff1a<\/strong>\u95a2\u4fc2\u306e\u65b9\u5411\uff08\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\uff09\u3092\u793a\u3059\u3002<\/li>\n<\/ul>\n<h3>3. \u591a\u91cd\u6027<\/h3>\n<p>\u591a\u91cd\u6027\u306f\u3001\u3042\u308b\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u5225\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u4f55\u500b\u95a2\u9023\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3059\u308b\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3067\u306f\u3001\u901a\u5e38\u3001\u63cf\u304b\u308c\u305f\u30ea\u30f3\u30af\u306e\u6570\u306b\u57fa\u3065\u3044\u3066\u6697\u9ed9\u7684\u306b\u793a\u3055\u308c\u308b\u304c\u3001\u30ea\u30f3\u30af\u81ea\u4f53\u306b\u660e\u793a\u7684\u306b\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u4e00\u822c\u7684\u306a\u591a\u91cd\u6027\u306b\u306f\u4ee5\u4e0b\u304c\u3042\u308b\uff1a<\/p>\n<ul>\n<li><strong>1:<\/strong>\u6b63\u78ba\u306b1\u3064\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<\/li>\n<li><strong>0..1:<\/strong>0\u500b\u307e\u305f\u306f1\u500b\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<\/li>\n<li><strong>1..*:<\/strong>1\u500b\u4ee5\u4e0a\u3001\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<\/li>\n<li><strong>0..*:<\/strong>0\u500b\u4ee5\u4e0a\u3001\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<\/li>\n<\/ul>\n<h3>4. \u5f79\u5272\u540d<\/h3>\n<p>2\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30ea\u30f3\u30af\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u30ea\u30f3\u30af\u306b\u306f\u3057\u3070\u3057\u3070\u5f79\u5272\u540d\u304c\u4ed8\u304f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u95a2\u4fc2\u306e\u8996\u70b9\u304c\u660e\u78ba\u306b\u306a\u308b\u3002\u305f\u3068\u3048\u3070\u3001<code>\u9867\u5ba2<\/code>\u3068<code>\u6ce8\u6587<\/code>\u306e\u30ea\u30f3\u30af\u306b\u304a\u3044\u3066\u3001\u9867\u5ba2\u306e\u8996\u70b9\u304b\u3089\u306e\u5f79\u5272\u306f<code>\u6ce8\u6587\u3059\u308b<\/code>\u3067\u3042\u308b\u4e00\u65b9\u3001\u6ce8\u6587\u306e\u8996\u70b9\u304b\u3089\u306f<code>\u6ce8\u6587\u3055\u308c\u305f<\/code>.<\/p>\n<h2>\u56f3\u306e\u8aad\u307f\u65b9\uff1a\u69cb\u6587\u898f\u5247<\/h2>\n<p>\u8868\u8a18\u306e\u4e00\u8cab\u6027\u304c\u3001\u56f3\u304c\u30c1\u30fc\u30e0\u5185\u3067\u666e\u904d\u7684\u306b\u7406\u89e3\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u9375\u3067\u3042\u308b\u3002\u6a19\u6e96\u7684\u306a\u69cb\u6587\u898f\u5247\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u66d6\u6627\u3055\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<ul>\n<li><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d\uff1a<\/strong>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d\u306f\u56f3\u5185\u3067\u4e00\u610f\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u6163\u4f8b\u3068\u3057\u3066\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d\u306b\u306f\u5c0f\u6587\u5b57\u3092\u3001\u30af\u30e9\u30b9\u540d\u306b\u306f\u30bf\u30a4\u30c8\u30eb\u30b1\u30fc\u30b9\u3092\u7528\u3044\u3001\u30b3\u30ed\u30f3\u3067\u533a\u5207\u308b\u3002<\/li>\n<li><strong>\u5c5e\u6027\u306e\u8868\u793a\uff1a<\/strong> \u5c5e\u6027\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30dc\u30c3\u30af\u30b9\u5185\u306e\u30af\u30e9\u30b9\u540d\u306e\u4e0b\u306b\u30ea\u30b9\u30c8\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u73fe\u5728\u306e\u72b6\u614b\u3092\u793a\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u5024\u304c\u306a\u3044\u5834\u5408\u3001\u3057\u3070\u3057\u3070\u7a7a\u767d\u306e\u307e\u307e\u307e\u305f\u306f\u300cnull\u300d\u3068\u30de\u30fc\u30af\u3055\u308c\u307e\u3059\u3002<code>null<\/code>.<\/li>\n<li><strong>\u30ea\u30f3\u30af\u30e9\u30d9\u30eb\uff1a<\/strong> \u30ea\u30f3\u30af\u4e0a\u306e\u30e9\u30d9\u30eb\u306f\u7c21\u6f54\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u95a2\u4fc2\u6027\uff08\u4f8b\uff1a\u300c\u6240\u6709\u3059\u308b\u300d\u3001\u300c\u6240\u6709\u3059\u308b\u300d\u3001\u300c\u542b\u3080\u300d\uff09\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30af\u30e9\u30b9\uff1a<\/strong> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u5c5e\u3059\u308b\u5834\u5408\u3001\u7d99\u627f\u3092\u793a\u3059\u7279\u5b9a\u306e\u8a18\u6cd5\u3067\u8868\u73fe\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u660e\u78ba\u3055\u306e\u305f\u3081\u306b\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u540d\u3060\u3051\u3067\u5341\u5206\u306a\u5834\u5408\u3082\u591a\u3044\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u306e\u30c6\u30ad\u30b9\u30c8\u8868\u73fe\u3092\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u69cb\u9020\u3068\u3057\u3066\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<ul>\n<li><code>customerA:Customer<\/code>\n<ul>\n<li><code>name: \"Alice\"<\/code><\/li>\n<li><code>id: 101<\/code><\/li>\n<\/ul>\n<\/li>\n<li><code>orderX:Order<\/code>\n<ul>\n<li><code>total: 150.00<\/code><\/li>\n<li><code>status: \"Paid\"<\/code><\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30ea\u30f3\u30af\uff1a<\/strong> <code>customerA<\/code> <code>places<\/code> <code>orderX<\/code><\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3051\u308b\u5b9f\u7528\u7684\u5fdc\u7528<\/h2>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u5358\u306a\u308b\u5b66\u8853\u7684\u306a\u6f14\u7fd2\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u306e\u65e5\u5e38\u7684\u306a\u696d\u52d9\u306b\u304a\u3044\u3066\u3001\u5b9f\u969b\u7684\u306a\u5fdc\u7528\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>1. \u8907\u96d1\u306a\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306e\u30c7\u30d0\u30c3\u30b0<\/h3>\n<p>\u30c7\u30fc\u30bf\u306e\u7834\u640d\u3084\u4e88\u671f\u3057\u306a\u3044null\u5024\u306b\u95a2\u9023\u3059\u308b\u30d0\u30b0\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u30af\u30e9\u30b9\u56f3\u306f\u307b\u3068\u3093\u3069\u5f79\u7acb\u3061\u307e\u305b\u3093\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u30c7\u30fc\u30bf\u306e\u6b63\u78ba\u306a\u72b6\u614b\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002\u30a8\u30e9\u30fc\u306b\u95a2\u4e0e\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3001\u6839\u672c\u539f\u56e0\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>2. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u691c\u8a3c<\/h3>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u524d\u306b\u3001\u30c1\u30fc\u30e0\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u30ea\u30f3\u30af\u3055\u308c\u308b\u304b\u3092\u53ef\u8996\u5316\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5b64\u7acb\u30ec\u30b3\u30fc\u30c9\u3084\u5faa\u74b0\u4f9d\u5b58\u306a\u3069\u306e\u6f5c\u5728\u7684\u306a\u6574\u5408\u6027\u306e\u554f\u984c\u3092\u3001\u672c\u756a\u74b0\u5883\u3067\u767a\u751f\u3059\u308b\u524d\u306b\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>3. API\u5951\u7d04\u306e\u8a2d\u8a08<\/h3>\n<p>REST API\u3092\u8a2d\u8a08\u3059\u308b\u969b\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30dc\u30c7\u30a3\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u30dc\u30c7\u30a3\u306f\u672c\u8cea\u7684\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72b6\u614b\u3067\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3053\u308c\u3089\u306e\u69cb\u9020\u306b\u5bfe\u3059\u308b\u8996\u899a\u7684\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u8005\u304c\u671f\u5f85\u3055\u308c\u308b\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>4. \u65b0\u30e1\u30f3\u30d0\u30fc\u306e\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0<\/h3>\n<p>\u65b0\u898f\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u3001\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u884c\u6642\u72b6\u614b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u56f0\u96e3\u3067\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3001\u30b3\u30a2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u5b9f\u969b\u306b\u306f\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u3092\u7c21\u7565\u5316\u3057\u305f\u8996\u70b9\u3067\u63d0\u4f9b\u3057\u3001\u7406\u8ad6\u3068\u73fe\u5b9f\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udcdd \u52b9\u679c\u7684\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306e\u4f5c\u6210<\/h2>\n<p>\u6709\u7528\u306a\u56f3\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001\u81ea\u5236\u5fc3\u304c\u5fc5\u8981\u3067\u3059\u3002\u3054\u3061\u3083\u3054\u3061\u3083\u3057\u305f\u56f3\u306f\u53ef\u8996\u5316\u306e\u76ee\u7684\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u3002\u660e\u78ba\u3055\u3092\u4fdd\u3064\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u7bc4\u56f2\u3092\u9650\u5b9a\u3059\u308b\uff1a<\/strong>\u4e00\u5ea6\u306b\u5168\u4f53\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u56f3\u793a\u3057\u3088\u3046\u3068\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u7279\u5b9a\u306e\u6a5f\u80fd\u3084\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5168\u4f53\u306e\u72b6\u614b\u3092\u793a\u3059\u56f3\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u8aad\u307f\u3065\u3089\u3044\u3067\u3059\u3002<\/li>\n<li><strong>\u547d\u540d\u898f\u5247\u3092\u7d71\u4e00\u3059\u308b\uff1a<\/strong>\u3059\u3079\u3066\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d\u304c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u547d\u540d\u898f\u5247\u306b\u5f93\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u8cab\u6027\u304c\u3042\u308b\u3053\u3068\u3067\u3001\u8a8d\u77e5\u7684\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u4f59\u767d\u3092\u6d3b\u7528\u3059\u308b\uff1a<\/strong>\u7dda\u304c\u4ea4\u5dee\u3059\u308b\u306e\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3088\u3046\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u914d\u7f6e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7dda\u304c\u4ea4\u5dee\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u63a5\u7d9a\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u793a\u3059\u305f\u3081\u306b\u5c0f\u3055\u306a\u30ae\u30e3\u30c3\u30d7\u3084\u30ce\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u95a2\u4fc2\u3092\u30e9\u30d9\u30eb\u3067\u660e\u793a\u3059\u308b\uff1a<\/strong>\u95a2\u4fc2\u306e\u7a2e\u985e\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u30ea\u30f3\u30af\u3092\u30e9\u30d9\u30eb\u306a\u3057\u306b\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u66d6\u6627\u3055\u306f\u8aa4\u308a\u3092\u62db\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u3092\u4fdd\u3064\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3059\u3050\u306b\u53e4\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u3068\u540c\u6642\u306b\u66f4\u65b0\u3059\u3079\u304d\u3001\u52d5\u7684\u306a\u6587\u66f8\u3068\u3057\u3066\u6271\u3044\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udea7 \u907f\u3051\u305f\u3044\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n<p>\u7d4c\u9a13\u8c4a\u5bcc\u306a\u30e2\u30c7\u30e9\u30fc\u3067\u3082\u3001\u56f3\u306e\u6709\u7528\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u7f60\u306b\u306f\u307e\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u4e00\u822c\u7684\u306a\u30df\u30b9\u306b\u6c17\u3065\u304f\u3053\u3068\u3067\u3001\u54c1\u8cea\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u904e\u5270\u306a\u4ed5\u69d8\u5316\uff1a<\/strong>\u3059\u3079\u3066\u306e\u5c5e\u6027\u3092\u542b\u3081\u308b\u3068\u3001\u56f3\u304c\u8907\u96d1\u306b\u306a\u308a\u3059\u304e\u307e\u3059\u3002\u7279\u5b9a\u306e\u6587\u8108\u3084\u8cea\u554f\u306b\u306e\u307f\u95a2\u4fc2\u3059\u308b\u5c5e\u6027\u306e\u307f\u3092\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>null\u53ef\u80fd\u6027\u3092\u7121\u8996\u3059\u308b\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5b58\u5728\u3057\u306a\u3044\u53ef\u80fd\u6027\uff08\u4f8b\uff1a\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u306e\u306a\u3044\u30e6\u30fc\u30b6\u30fc\uff09\u3092\u793a\u3055\u306a\u3044\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u53ef\u7528\u6027\u306b\u3064\u3044\u3066\u8aa4\u3063\u305f\u4eee\u5b9a\u3092\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u6982\u5ff5\u3092\u6df7\u540c\u3059\u308b\uff1a<\/strong>\u52d5\u7684\u306a\u8981\u7d20\uff08\u30b7\u30fc\u30b1\u30f3\u30b9\u3084\u72b6\u614b\u5909\u5316\u306a\u3069\uff09\u3092\u9759\u7684\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306b\u6df7\u305c\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u69cb\u9020\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u7d99\u627f\u3092\u7121\u8996\u3059\u308b\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u632f\u308b\u821e\u3044\u3092\u7d99\u627f\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u56f3\u306f\u305d\u306e\u968e\u5c64\u3092\u53cd\u6620\u3059\u3079\u304d\u3067\u3059\u3002\u7d99\u627f\u3092\u96a0\u3059\u3068\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u80fd\u529b\u306e\u672c\u8cea\u304c\u4e0d\u660e\u77ad\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd04 \u4ed6\u306eUML\u30e2\u30c7\u30eb\u3068\u306e\u7d71\u5408<\/h2>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u5b64\u7acb\u3057\u3066\u5b58\u5728\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002UML\u30b9\u30a4\u30fc\u30c8\u306e\u4ed6\u306e\u8981\u7d20\u3068\u7d71\u5408\u3055\u308c\u305f\u3068\u304d\u306b\u6700\u3082\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u63a5\u7d9a\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u5168\u4f53\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u4f5c\u696d\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<h3>1. \u30b7\u30fc\u30b1\u30f3\u30b9\u56f3<\/h3>\n<p>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u3069\u306e\u3088\u3046\u306b\u6d41\u308c\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3001\u305d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u9001\u4fe1\u3055\u308c\u305f\u3068\u304d\u306b\u5b58\u5728\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u793a\u3059\u3053\u3068\u3067\u3001\u3053\u308c\u3092\u88dc\u5b8c\u3057\u307e\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u300c\u8ab0\u304c\u95a2\u4e0e\u3057\u3066\u3044\u308b\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u3044\u306b\u7b54\u3048\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u300c\u4f55\u304c\u8d77\u3053\u308b\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u3044\u306b\u7b54\u3048\u307e\u3059\u3002<\/p>\n<h3>2. 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