{"id":393,"date":"2026-04-04T14:25:26","date_gmt":"2026-04-04T14:25:26","guid":{"rendered":"https:\/\/www.go-notes.com\/ja\/ecommerce-system-uml-class-diagrams-guide\/"},"modified":"2026-04-04T14:25:26","modified_gmt":"2026-04-04T14:25:26","slug":"ecommerce-system-uml-class-diagrams-guide","status":"publish","type":"post","link":"https:\/\/www.go-notes.com\/ja\/ecommerce-system-uml-class-diagrams-guide\/","title":{"rendered":"\u5b9f\u4e16\u754c\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\uff1aUML \u30af\u30e9\u30b9\u56f3\u3092\u7528\u3044\u305f E \u30b3\u30de\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u306e\u30e2\u30c7\u30ea\u30f3\u30b0"},"content":{"rendered":"<p>\u5805\u7262\u306a E \u30b3\u30de\u30fc\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u306b\u306f\u3001\u5358\u306a\u308b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4ee5\u4e0a\u306e\u3082\u306e\u304c\u5fc5\u8981\u3067\u3059\u3002\u660e\u78ba\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u8a2d\u8a08\u56f3\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u5805\u56fa\u306a\u57fa\u76e4\u304c\u306a\u3051\u308c\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u8106\u304f\u306a\u308a\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5305\u62ec\u7684\u306a E \u30b3\u30de\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08UML\uff09\u30af\u30e9\u30b9\u56f3\u306e\u5b9f\u8df5\u7684\u5fdc\u7528\u3092\u63a2\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u7406\u8ad6\u3092\u8d85\u3048\u3066\u3001\u73fe\u4ee3\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u5c0f\u58f2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5b9a\u7fa9\u3059\u308b\u5177\u4f53\u7684\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u5236\u7d04\u3092\u691c\u8a0e\u3057\u307e\u3059\u3002<\/p>\n<p>UML \u30af\u30e9\u30b9\u56f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u306e\u9aa8\u683c\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30af\u30e9\u30b9\u3001\u305d\u306e\u5c5e\u6027\u3001\u64cd\u4f5c\u3001\u304a\u3088\u3073\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u9593\u306e\u95a2\u4fc2\u3092\u56f3\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u9759\u7684\u69cb\u9020\u3092\u53ef\u8996\u5316\u3057\u307e\u3059\u3002\u3053\u306e\u6587\u8108\u306b\u304a\u3044\u3066\u3001\u79c1\u305f\u3061\u306f\u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u3092\u3001\u958b\u767a\u8005\u304c\u6b63\u78ba\u306b\u5b9f\u88c5\u3067\u304d\u308b\u6280\u8853\u30b9\u30ad\u30fc\u30de\u3078\u3068\u5909\u63db\u3059\u308b\u65b9\u6cd5\u3092\u5206\u6790\u3057\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"E\u30b3\u30de\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u306eUML\u30af\u30e9\u30b9\u56f3\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u793a\u3059\u30c1\u30e3\u30b3\u30b9\u30b1\u30c3\u30c1\u306e\u30a4\u30f3\u30d5\u30a9\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3002\u4e3b\u8981\u306a\u30af\u30e9\u30b9\uff08\u30e6\u30fc\u30b6\u30fc\u3001\u88fd\u54c1\u3001\u6ce8\u6587\u3001\u652f\u6255\u3044\uff09\u306b\u5c5e\u6027\u3068\u64cd\u4f5c\u3001\u95a2\u4fc2\u8a18\u6cd5\uff08\u95a2\u9023\u3001\u96c6\u7d04\u3001\u5408\u6210\u3001\u7d99\u627f\uff09\u3001\u591a\u91cd\u5ea6\u5236\u7d04\u3001\u5728\u5eab\u691c\u8a3c\u306a\u3069\u306e\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3001SOLID\u8a2d\u8a08\u539f\u5247\u3001\u304a\u3088\u3073\u56f3\u304b\u3089\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u304a\u3088\u3073API\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3078\u306e\u5b9f\u88c5\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\" decoding=\"async\" src=\"https:\/\/www.go-notes.com\/wp-content\/uploads\/2026\/04\/uml-ecommerce-class-diagram-infographic-charcoal-sketch.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83c\udfd7\ufe0f \u30c9\u30e1\u30a4\u30f3\u306e\u7406\u89e3\uff1aE \u30b3\u30de\u30fc\u30b9\u306e\u8981\u4ef6<\/h2>\n<p>1 \u3064\u306e\u30dc\u30c3\u30af\u30b9\u3092\u63cf\u304f\u524d\u306b\u3001\u30d3\u30b8\u30cd\u30b9\u30c9\u30e1\u30a4\u30f3\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002E \u30b3\u30de\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u5728\u5eab\u3001\u9867\u5ba2\u30c7\u30fc\u30bf\u3001\u53d6\u5f15\u3001\u7269\u6d41\u3092\u540c\u6642\u306b\u7ba1\u7406\u3059\u308b\u305f\u3081\u8907\u96d1\u3067\u3059\u3002\u76ee\u6a19\u306f\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u91cd\u8907\u306a\u304f\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u9867\u5ba2\u7ba1\u7406\uff1a<\/strong>\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u8a8d\u8a3c\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u3002<\/li>\n<li><strong>\u5546\u54c1\u30ab\u30bf\u30ed\u30b0\uff1a<\/strong>\u30a2\u30a4\u30c6\u30e0\u3001\u30ab\u30c6\u30b4\u30ea\u3001\u4fa1\u683c\u3001\u5728\u5eab\u30ec\u30d9\u30eb\u306e\u7ba1\u7406\u3002<\/li>\n<li><strong>\u6ce8\u6587\u51e6\u7406\uff1a<\/strong>\u30ab\u30fc\u30c8\u72b6\u614b\u3001\u6ce8\u6587\u306e\u4f5c\u6210\u3001\u304a\u3088\u3073\u5c65\u884c\u306e\u8ffd\u8de1\u3002<\/li>\n<li><strong>\u652f\u6255\u3044\u51e6\u7406\uff1a<\/strong>\u5b89\u5168\u306a\u53d6\u5f15\u51e6\u7406\u306e\u7d71\u5408\u3002<\/li>\n<li><strong>\u914d\u9001\u3068\u7269\u6d41\uff1a<\/strong>\u914d\u9001\u5148\u4f4f\u6240\u3068\u8ffd\u8de1\u306e\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u5404\u6a5f\u80fd\u9818\u57df\u306f\u3001\u56f3\u5185\u306e\u7279\u5b9a\u306e\u30af\u30e9\u30b9\u306b\u76f4\u63a5\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u3092\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u7d50\u679c\u3068\u3057\u3066\u5f97\u3089\u308c\u308b\u30e2\u30c7\u30eb\u304c\u4fdd\u5b88\u53ef\u80fd\u3067\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udcd0 \u30af\u30e9\u30b9\u56f3\u306e\u6838\u5fc3\u8981\u7d20<\/h2>\n<p>\u30af\u30e9\u30b9\u56f3\u306f\u3001\u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\u5185\u306e3\u3064\u306e\u4e3b\u8981\u306a\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a\u30af\u30e9\u30b9\u540d\u3001\u5c5e\u6027\u3001\u304a\u3088\u3073\u64cd\u4f5c\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3002\u5404\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308b\u821e\u3044\u3068\u72b6\u614b\u3092\u5b9a\u7fa9\u3059\u308b\u4e0a\u3067\u56fa\u6709\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<h3>1. \u30af\u30e9\u30b9\u540d<\/h3>\n<p>\u30af\u30e9\u30b9\u540d\u306f\u3001\u5b9f\u4e16\u754c\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u8868\u3059\u540d\u8a5e\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002\u5927\u6587\u5b57\u3067\u8868\u8a18\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff08\u4f8b\uff1a&#8221;<code>User<\/code>, <code>Product<\/code>\uff09\u3002\u547d\u540d\u898f\u5247\u306e\u4e00\u8cab\u6027\u306f\u3001\u5f8c\u3067\u958b\u767a\u8005\u304c\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u30ca\u30d3\u30b2\u30fc\u30c8\u3059\u308b\u969b\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>2. \u5c5e\u6027<\/h3>\n<p>\u5c5e\u6027\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4fdd\u6301\u3059\u308b\u30c7\u30fc\u30bf\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002E \u30b3\u30de\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u306e\u6587\u8108\u3067\u306f\u3001\u3053\u308c\u3089\u306b\u306f\u3057\u3070\u3057\u3070\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u30ad\u30fc\uff1a<\/strong>&#8220;userId&#8221;\u3084&#8221;\u306e\u3088\u3046\u306a\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<code>userId<\/code>\u307e\u305f\u306f&#8221;<code>productId<\/code>.<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u578b:<\/strong>\u540d\u524d\u306f\u6587\u5b57\u5217\u3001\u6570\u91cf\u306f\u6574\u6570\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u65e5\u4ed8\u3067\u3059\u3002<\/li>\n<li><strong>\u53ef\u8996\u6027:<\/strong>\u30d1\u30d6\u30ea\u30c3\u30af (+)\u3001\u30d7\u30ed\u30c6\u30af\u30c8 (#)\u3001\u307e\u305f\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 (-) \u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3002<\/li>\n<\/ul>\n<h3>3. \u64cd\u4f5c<\/h3>\n<p>\u64cd\u4f5c\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5b9f\u884c\u3067\u304d\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8868\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<code>\u9867\u5ba2<\/code>\u30af\u30e9\u30b9\u306b\u306f\u3001\u300c<code>addToCart()<\/code>\u300d\u307e\u305f\u306f\u300c<code>placeOrder()<\/code>\u300d\u306e\u3088\u3046\u306a\u64cd\u4f5c\u3092\u6301\u3064\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72b6\u614b\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30ed\u30b8\u30c3\u30af\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udd17 \u30af\u30e9\u30b9\u9593\u306e\u95a2\u4fc2\u306e\u5b9a\u7fa9<\/h2>\n<p>\u30af\u30e9\u30b9\u56f3\u306e\u529b\u306f\u3001\u30af\u30e9\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u306b\u3042\u308a\u307e\u3059\u3002\u95a2\u4fc2\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u901a\u4fe1\u3057\u3001\u4e92\u3044\u306b\u4f9d\u5b58\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u3001e\u30b3\u30de\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u95a2\u4fc2\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u95a2\u4fc2\u306e\u7a2e\u985e<\/th>\n<th>\u8aac\u660e<\/th>\n<th>\u8996\u899a\u7684\u8868\u8a18<\/th>\n<th>e\u30b3\u30de\u30fc\u30b9\u306e\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u95a2\u9023<\/td>\n<td>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u30ea\u30f3\u30af\u3055\u308c\u308b\u69cb\u9020\u7684\u306a\u95a2\u4fc2\u3002<\/td>\n<td>\u7dda<\/td>\n<td>\u9867\u5ba2\u304c\u6ce8\u6587\u3092\u884c\u3046\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u96c6\u7d04<\/td>\n<td>\u90e8\u54c1\u304c\u72ec\u7acb\u3057\u3066\u5b58\u5728\u3067\u304d\u308b\u300c\u5168\u4f53\u3068\u90e8\u5206\u300d\u306e\u95a2\u4fc2\u3002<\/td>\n<td>\u958b\u3044\u305f\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9<\/td>\n<td>\u5e97\u8217\u306f\u5546\u54c1\u3092\u542b\u307e\u308c\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5408\u6210<\/td>\n<td>\u5168\u4f53\u304c\u306a\u3051\u308c\u3070\u90e8\u54c1\u304c\u5b58\u5728\u3067\u304d\u306a\u3044\u3001\u53b3\u5bc6\u306a\u300c\u5168\u4f53\u3068\u90e8\u5206\u300d\u306e\u95a2\u4fc2\u3002<\/td>\n<td>\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9<\/td>\n<td>\u6ce8\u6587\u306f\u6ce8\u6587\u9805\u76ee\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7d99\u627f<\/td>\n<td>\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u3059\u308b\u4e00\u822c\u5316\u3002<\/td>\n<td>\u4e2d\u7a7a\u306e\u4e09\u89d2\u5f62\u4ed8\u304d\u77e2\u5370<\/td>\n<td>\u652f\u6255\u3044\u65b9\u6cd5\u306f\u652f\u6255\u3044\u304b\u3089\u7d99\u627f\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83d\udce6 \u8a73\u7d30\u306a\u30af\u30e9\u30b9\u5185\u8a33<\/h2>\n<p>\u6a19\u6e96\u7684\u306a\u53d6\u5f15\u30d5\u30ed\u30fc\u306b\u5fc5\u8981\u306a\u7279\u5b9a\u306e\u30af\u30e9\u30b9\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4e2d\u6838\u7684\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5c5e\u6027\u3068\u30e1\u30bd\u30c3\u30c9\u306e\u8a73\u7d30\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e6\u30fc\u30b6\u30fc\u30af\u30e9\u30b9<\/h3>\n<p>\u300c<code>\u30e6\u30fc\u30b6\u30fc<\/code>\u30af\u30e9\u30b9\u306f\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3068\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u30a2\u30af\u30bf\u30fc\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u76f8\u4e92\u4f5c\u7528\u306e\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5c5e\u6027\uff1a<\/strong> <code>id<\/code>, <code>email<\/code>, <code>passwordHash<\/code>, <code>role<\/code>\uff08\u7ba1\u7406\u8005\u3001\u9867\u5ba2\uff09\u3002<\/li>\n<li><strong>\u64cd\u4f5c\uff1a<\/strong> <code>register()<\/code>, <code>login()<\/code>, <code>updateProfile()<\/code>.<\/li>\n<li><strong>\u95a2\u4fc2\uff1a<\/strong>\u8907\u6570\u306e\u300c<code>\u4f4f\u6240<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8; \u8907\u6570\u306e<code>\u6ce8\u6587<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<\/li>\n<\/ul>\n<h3>\u5546\u54c1\u30af\u30e9\u30b9<\/h3>\n<p>\u5546\u54c1\u306f\u8ca9\u58f2\u53ef\u80fd\u306a\u5728\u5eab\u30a2\u30a4\u30c6\u30e0\u3067\u3059\u3002\u3053\u306e\u30af\u30e9\u30b9\u306f\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3068\u5728\u5eab\u8ffd\u8de1\u3092\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5c5e\u6027:<\/strong> <code>SKU<\/code>, <code>\u540d\u524d<\/code>, <code>\u4fa1\u683c<\/code>, <code>\u5728\u5eab\u6570\u91cf<\/code>, <code>\u30ab\u30c6\u30b4\u30ea<\/code>.<\/li>\n<li><strong>\u64cd\u4f5c:<\/strong> <code>updatePrice()<\/code>, <code>checkStock()<\/code>, <code>search()<\/code>.<\/li>\n<li><strong>\u95a2\u4fc2:<\/strong> \u306b\u5c5e\u3059\u308b<code>\u30ab\u30c6\u30b4\u30ea<\/code>; \u8907\u6570\u306e<code>\u6ce8\u6587\u9805\u76ee<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<\/li>\n<\/ul>\n<h3>\u6ce8\u6587\u30af\u30e9\u30b9<\/h3>\n<p>\u6ce8\u6587\u306f\u5546\u696d\u53d6\u5f15\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u30c7\u30fc\u30bf\u6574\u5408\u6027\u306b\u3068\u3063\u3066\u6700\u3082\u91cd\u8981\u306a\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5c5e\u6027:<\/strong> <code>\u6ce8\u6587ID<\/code>, <code>\u6ce8\u6587\u65e5<\/code>, <code>\u30b9\u30c6\u30fc\u30bf\u30b9<\/code>\uff08\u4fdd\u7559\u4e2d\u3001\u51fa\u8377\u6e08\u307f\uff09\u3001<code>\u5408\u8a08\u91d1\u984d<\/code>.<\/li>\n<li><strong>\u64cd\u4f5c:<\/strong> <code>\u5408\u8a08\u8a08\u7b97()<\/code>, <code>\u30ad\u30e3\u30f3\u30bb\u30eb()<\/code>, <code>\u8acb\u6c42\u66f8\u751f\u6210()<\/code>.<\/li>\n<li><strong>\u95a2\u4fc2:<\/strong>\u8907\u6570\u306e<code>\u6ce8\u6587\u9805\u76ee<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u69cb\u6210\u3055\u308c\u30011 \u3064\u306e<code>\u30e6\u30fc\u30b6\u30fc<\/code>\u304a\u3088\u30731 \u3064\u306e<code>\u652f\u6255\u3044<\/code>\u30ec\u30b3\u30fc\u30c9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u652f\u6255\u3044\u30af\u30e9\u30b9<\/h3>\n<p>\u91d1\u92ad\u306e\u51e6\u7406\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u6b63\u78ba\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u53b3\u683c\u306a\u30e2\u30c7\u30ea\u30f3\u30b0\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5c5e\u6027:<\/strong> <code>\u53d6\u5f15ID<\/code>, <code>\u30e1\u30bd\u30c3\u30c9<\/code>, <code>\u91d1\u984d<\/code>, <code>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7<\/code>.<\/li>\n<li><strong>\u64cd\u4f5c:<\/strong> <code>authorize()<\/code>, <code>capture()<\/code>, <code>refund()<\/code>.<\/li>\n<li><strong>\u95a2\u4fc2:<\/strong> \u306b\u95a2\u9023\u3059\u308b <code>\u6ce8\u6587<\/code>.<\/li>\n<\/ul>\n<h2>\ud83d\udcca \u7279\u5b9a\u306e\u5236\u7d04\u3068\u30eb\u30fc\u30eb\u306e\u30e2\u30c7\u30ea\u30f3\u30b0<\/h2>\n<p>\u30af\u30e9\u30b9\u56f3\u306f\u5358\u306b\u7bb1\u3068\u7dda\u3092\u63cf\u304f\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u306e\u9069\u7528\u306b\u95a2\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u5236\u7d04\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306f\u30b7\u30b9\u30c6\u30e0\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u5168\u4f53\u3067\u6709\u52b9\u306a\u307e\u307e\u4fdd\u305f\u308c\u307e\u3059\u3002<\/p>\n<h3>\u591a\u91cd\u5ea6\u3068\u57fa\u6570<\/h3>\n<p>\u591a\u91cd\u5ea6\u306f\u3001\u3042\u308b\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u5225\u306e\u30af\u30e9\u30b9\u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\uff1a<\/p>\n<ul>\n<li><strong>1\u5bfe\u591a\u6570:<\/strong> 1 <code>\u30e6\u30fc\u30b6\u30fc<\/code> \u306f\u591a\u6570\u306e <code>\u6ce8\u6587<\/code> (1..*) \u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u6a19\u6e96\u7684\u306a\u95a2\u9023\u3067\u3059\u3002<\/li>\n<li><strong>1\u5bfe1:<\/strong> 1 <code>\u30e6\u30fc\u30b6\u30fc<\/code> \u306f 1 \u3064\u306e<code>\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb<\/code> (1..1)\u3002\u3053\u308c\u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u3054\u3068\u306b\u4e00\u610f\u306e\u8eab\u5143\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30bc\u30ed\u304b\u3089\u591a\u6570:<\/strong> 1 \u3064\u306e<code>\u30ab\u30c6\u30b4\u30ea<\/code> \u306f\u30bc\u30ed\u307e\u305f\u306f\u591a\u6570\u306e<code>\u5546\u54c1<\/code> (0..*)\u3002\u3053\u308c\u306f\u3001\u8a2d\u5b9a\u6642\u306b\u7a7a\u306e\u30ab\u30c6\u30b4\u30ea\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u5236\u7d04\u3092\u30ce\u30fc\u30c8\u3068\u3057\u3066<\/h3>\n<p>\u7dda\u3060\u3051\u3067\u306f\u8868\u73fe\u3067\u304d\u306a\u3044\u30ed\u30b8\u30c3\u30af\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306b\u3001\u30ce\u30fc\u30c8\u307e\u305f\u306f\u30ac\u30fc\u30c9\u6761\u4ef6\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u5728\u5eab\u5236\u7d04:<\/strong> <code>stockQuantity &gt; 0<\/code> \u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6ce8\u6587\u3092\u51fa\u3059\u524d\u306b\u3002<\/li>\n<li><strong>\u4fa1\u683c\u5236\u7d04:<\/strong> <code>price &gt; 0<\/code> \u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u5546\u54c1\u306b\u3064\u3044\u3066\u3002<\/li>\n<li><strong>\u30b9\u30c6\u30fc\u30bf\u30b9\u5236\u7d04:<\/strong> \u30b9\u30c6\u30fc\u30bf\u30b9\u304c<code>\u51fa\u8377\u6e08\u307f<\/code>.<\/li>\n<\/ul>\n<h2>\ud83e\udde9 \u7d99\u627f\u3068\u591a\u614b\u6027\u306e\u51e6\u7406<\/h2>\n<p>\u7d99\u627f\u306f\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u3068\u8ad6\u7406\u7684\u306a\u30b0\u30eb\u30fc\u30d7\u5316\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002e \u30b3\u30de\u30fc\u30b9\u3067\u306f\u3001\u7570\u306a\u308b\u7a2e\u985e\u306e\u5546\u54c1\u3084\u652f\u6255\u3044\u304c\u5171\u901a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5171\u6709\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u7279\u5b9a\u306e\u52d5\u4f5c\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5546\u54c1\u306e\u5909\u7a2e<\/h3>\n<p>\u5c5e\u6027\u3092\u8907\u88fd\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9<code>\u5546\u54c1<\/code> \u3068\u3001<code>\u96fb\u5b50\u6a5f\u5668<\/code> \u307e\u305f\u306f<code>\u8863\u985e<\/code>.<\/p>\n<ul>\n<li><strong>\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9:<\/strong> <code>\u88fd\u54c1<\/code> (\u540d\u524d\u3001\u4fa1\u683c\u3001SKU)\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30af\u30e9\u30b9:<\/strong> <code>\u96fb\u5b50\u6a5f\u5668<\/code> (\u4fdd\u8a3c\u671f\u9593\u3001\u96fb\u5727)\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30af\u30e9\u30b9:<\/strong> <code>\u8863\u985e<\/code> (\u30b5\u30a4\u30ba\u3001\u8272\u3001\u7d20\u6750)\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u69cb\u9020\u306b\u3088\u308a\u3001\u5171\u901a\u306e\u30ed\u30b8\u30c3\u30af\u306f\u89aa\u30af\u30e9\u30b9\u306b\u3001\u7279\u5b9a\u306e\u30ed\u30b8\u30c3\u30af\u306f\u5b50\u30af\u30e9\u30b9\u306b\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u652f\u6255\u3044\u65b9\u6cd5<\/h3>\n<p>\u652f\u6255\u3044\u65b9\u6cd5\u306f\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u7d71\u4e00\u3055\u308c\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u3088\u308a\u3001\u6ce8\u6587\u51e6\u7406\u306e\u30ed\u30b8\u30c3\u30af\u304c\u7c21\u7d20\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9:<\/strong> <code>\u652f\u6255\u3044<\/code> (\u91d1\u984d\u3001\u53d6\u5f15ID)\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30af\u30e9\u30b9:<\/strong> <code>\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u652f\u6255\u3044<\/code> (\u30ab\u30fc\u30c9\u756a\u53f7\u3001\u6709\u52b9\u671f\u9650)\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30af\u30e9\u30b9:<\/strong> <code>\u6697\u53f7\u901a\u8ca8\u652f\u6255\u3044<\/code> (\u30a6\u30a9\u30ec\u30c3\u30c8\u30a2\u30c9\u30ec\u30b9\u3001\u30cf\u30c3\u30b7\u30e5)\u3002<\/li>\n<\/ul>\n<p>\u30b7\u30b9\u30c6\u30e0\u304c\u652f\u6255\u3044\u3092\u51e6\u7406\u3059\u308b\u969b\u3001<code>authorize()<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u6c4e\u7528\u7684\u306a<code>\u652f\u6255\u3044<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u591a\u614b\u6027\u306b\u3088\u308a\u3001\u5404\u30bf\u30a4\u30d7\u306e\u7279\u5b9a\u306e\u30ed\u30b8\u30c3\u30af\u304c\u5185\u90e8\u3067\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udee0\ufe0f \u4fdd\u5b88\u3068\u9032\u5316\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u6c7a\u3057\u3066\u9759\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8981\u4ef6\u306f\u5909\u5316\u3057\u3001\u30e2\u30c7\u30eb\u306f\u65e2\u5b58\u306e\u6a5f\u80fd\u3092\u58ca\u3055\u305a\u306b\u9032\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u7279\u5b9a\u306e\u8a2d\u8a08\u539f\u5247\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30af\u30e9\u30b9\u56f3\u306e\u6574\u5408\u6027\u3092\u9577\u671f\u7684\u306b\u7dad\u6301\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>SOLID\u306e\u539f\u5247<\/h3>\n<p>SOLID\u306e\u539f\u5247\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u67d4\u8edf\u306a\u307e\u307e\u7dad\u6301\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5358\u4e00\u8cac\u4efb\u306e\u539f\u5247:<\/strong>\u300c<code>Order<\/code>\u300d\u30af\u30e9\u30b9\u306f\u6ce8\u6587\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3059\u3079\u304d\u3067\u3042\u308a\u3001\u30e1\u30fc\u30eb\u901a\u77e5\u3092\u51e6\u7406\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u901a\u4fe1\u306f\u5225\u306e\u30af\u30e9\u30b9\u304c\u62c5\u5f53\u3059\u3079\u304d\u3067\u3059\u3002<\/li>\n<li><strong>\u30aa\u30fc\u30d7\u30f3\/\u30af\u30ed\u30fc\u30ba\u30c9\u306e\u539f\u5247:<\/strong>\u30b7\u30b9\u30c6\u30e0\u306f\u62e1\u5f35\u306b\u5bfe\u3057\u3066\u30aa\u30fc\u30d7\u30f3\uff08\u65b0\u3057\u3044\u652f\u6255\u3044\u30bf\u30a4\u30d7\uff09\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u304c\u3001\u5909\u66f4\u306b\u5bfe\u3057\u3066\u30af\u30ed\u30fc\u30ba\u30c9\uff08\u65e2\u5b58\u306e\u6ce8\u6587\u30ed\u30b8\u30c3\u30af\uff09\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002<\/li>\n<li><strong>\u30ea\u30b9\u30b3\u30d5\u306e\u7f6e\u63db\u306e\u539f\u5247:<\/strong>\u300c<code>CreditCardPayment<\/code>\u300d\u306e\u3088\u3046\u306a\u30b5\u30d6\u30af\u30e9\u30b9\u306f\u3001\u3069\u3053\u3067\u300c<code>Payment<\/code>\u300d\u304c\u671f\u5f85\u3055\u308c\u308b\u5834\u6240\u3067\u6b63\u3057\u304f\u6a5f\u80fd\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u300d<\/li>\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5206\u96e2\u306e\u539f\u5247:<\/strong>\u30e6\u30fc\u30b6\u30fc\u306f\u4f7f\u7528\u3057\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u306b\u4f9d\u5b58\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5927\u304d\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3001\u3088\u308a\u5c0f\u3055\u304f\u7279\u5b9a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5206\u5272\u3059\u3079\u304d\u3067\u3059\u3002<\/li>\n<li><strong>\u4f9d\u5b58\u6027\u9006\u8ee2\u306e\u539f\u5247:<\/strong>\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\uff08Order\uff09\u306f\u3001\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u3067\u306f\u306a\u304f\u62bd\u8c61\u5316\uff08PaymentGateway\uff09\u306b\u4f9d\u5b58\u3059\u3079\u304d\u3067\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/h3>\n<p>\u56f3\u304c\u5909\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u5909\u66f4\u306e\u5c65\u6b74\u3092\u4fdd\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7279\u5b9a\u306e\u95a2\u4fc2\u304c\u306a\u305c\u9078\u3070\u308c\u305f\u304b\u3092\u6587\u66f8\u5316\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001\u300c<code>OrderItem<\/code>\u300d\u304c\u300c<code>Order<\/code>\u300d\u306e\u5408\u6210\u3067\u3042\u308b\u5834\u5408\u3001\u3053\u308c\u306f\u30ad\u30e3\u30f3\u30bb\u30eb\u4e2d\u306b\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3053\u3068\u3092\u6ce8\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d<\/p>\n<h2>\u26a0\ufe0f \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n<p>\u7d4c\u9a13\u8c4a\u5bcc\u306a\u30c7\u30b6\u30a4\u30ca\u30fc\u3067\u3082\u9593\u9055\u3044\u3092\u72af\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u65e9\u671f\u306b\u8a8d\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u5f8c\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306b\u304b\u304b\u308b\u52b4\u529b\u3092\u5927\u5e45\u306b\u7bc0\u7d04\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30b4\u30c3\u30c9\u30af\u30e9\u30b9:<\/strong>\u3059\u3079\u3066\u3092\u77e5\u3063\u3066\u3044\u308b\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30af\u30e9\u30b9\u306b50\u4ee5\u4e0a\u306e\u5c5e\u6027\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u306f\u5358\u4e00\u8cac\u4efb\u306e\u539f\u5247\u306b\u9055\u53cd\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002<\/li>\n<li><strong>\u6df1\u3044\u7d99\u627f\u30c4\u30ea\u30fc:<\/strong>\u7d99\u627f\u306f\u6d45\u3044\u3082\u306e\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002\u30b5\u30d6\u30af\u30e9\u30b9\u304c5\u6bb5\u968e\u3042\u308b\u5834\u5408\u306f\u3001\u4ee3\u308f\u308a\u306b\u5408\u6210\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u591a\u91cd\u6027\u306e\u6b20\u843d:<\/strong> \u5e38\u306b\u3001\u95a2\u4fc2\u306b\u53c2\u52a0\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u66d6\u6627\u3055\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u5faa\u74b0\u4f9d\u5b58:<\/strong>\u30af\u30e9\u30b9 B \u304c\u30af\u30e9\u30b9 A \u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30af\u30e9\u30b9 A \u304c\u30af\u30e9\u30b9 B \u306b\u4f9d\u5b58\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4f9d\u5b58\u30b0\u30e9\u30d5\u3067\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u72b6\u614b\u306e\u7121\u8996:<\/strong> \u30af\u30e9\u30b9\u306b\u306f\u72b6\u614b\u304c\u3042\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<code>\u652f\u6255\u3044<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u5bfe\u5fdc\u3059\u308b<code>\u6ce8\u6587<\/code>\u72b6\u614b\u304c\u5b58\u5728\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd04 \u56f3\u304b\u3089\u5b9f\u88c5\u3078<\/h2>\n<p>\u6700\u7d42\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u8996\u899a\u30e2\u30c7\u30eb\u3092\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30c4\u30fc\u30eb\u306f\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u591a\u304f\u3092\u81ea\u52d5\u5316\u3067\u304d\u307e\u3059\u304c\u3001\u624b\u52d5\u3067\u306e\u30ec\u30d3\u30e5\u30fc\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de:<\/strong> \u30af\u30e9\u30b9\u56f3\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u76f4\u63a5\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u30c6\u30fc\u30d6\u30eb\u306f\u30af\u30e9\u30b9\u306b\u5bfe\u5fdc\u3057\u3001\u5916\u90e8\u30ad\u30fc\u306f\u95a2\u9023\u4ed8\u3051\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/li>\n<li><strong>API\u8a2d\u8a08:<\/strong> \u30af\u30e9\u30b9\u5185\u306e\u516c\u958b\u64cd\u4f5c\u306f API \u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<code>placeOrder()<\/code>\u306f<code>POST \/orders<\/code>\u30eb\u30fc\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30c6\u30b9\u30c8\u6226\u7565:<\/strong> \u95a2\u4fc2\u6027\u3092\u5229\u7528\u3057\u3066\u5358\u4f53\u30c6\u30b9\u30c8\u3092\u5b9a\u7fa9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<code>\u9867\u5ba2<\/code>\u304c\u5b9f\u969b\u306b<code>\u6ce8\u6587<\/code>\u3092\u4f5c\u6210\u3067\u304d\u308b\u3053\u3068\u3001\u305d\u3057\u3066<code>\u5728\u5eab<\/code>\u304c\u6b63\u3057\u304f\u66f4\u65b0\u3055\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcdd \u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306e\u307e\u3068\u3081<\/h2>\n<p>UML 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