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\/>\n\u30b7\u30b9\u30c6\u30e0\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u8868\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u305d\u306e\u5c5e\u6027\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u9593\u306e\u95a2\u4fc2\u6027\u3092\u793a\u3059\u3002\u4e3b\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u683c\u7d0d\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002<\/p>\n<p data-nodeid=\"2931\"><img alt=\"ERD - Small Loan System - Visual Paradigm Community Circle\" data-nodeid=\"3595\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/ERD-Small-Loan-System.png\"\/><\/p>\n<p data-nodeid=\"2932\"><strong data-nodeid=\"3599\">\u4e3b\u306a\u9055\u3044\uff1a<\/strong><\/p>\n<table data-nodeid=\"2934\">\n<thead data-nodeid=\"2935\">\n<tr data-nodeid=\"2936\">\n<th data-nodeid=\"2938\">\u5074\u9762<\/th>\n<th data-nodeid=\"2939\">\u30af\u30e9\u30b9\u56f3<\/th>\n<th data-nodeid=\"2940\">ER\u56f3<\/th>\n<\/tr>\n<\/thead>\n<tbody data-nodeid=\"2944\">\n<tr data-nodeid=\"2945\">\n<td data-nodeid=\"2946\"><strong data-nodeid=\"3606\">\u76ee\u7684<\/strong><\/td>\n<td data-nodeid=\"2947\">\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u69cb\u9020\u3092\u8868\u3059<\/td>\n<td data-nodeid=\"2948\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u69cb\u9020\u3092\u8868\u3059<\/td>\n<\/tr>\n<tr data-nodeid=\"2949\">\n<td data-nodeid=\"2950\"><strong data-nodeid=\"3612\">\u62bd\u8c61\u5ea6<\/strong><\/td>\n<td data-nodeid=\"2951\">\u3088\u308a\u62bd\u8c61\u7684\uff1b\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b<\/td>\n<td data-nodeid=\"2952\">\u3088\u308a\u5177\u4f53\u7684\uff1b\u30c7\u30fc\u30bf\u4fdd\u5b58\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b<\/td>\n<\/tr>\n<tr data-nodeid=\"2953\">\n<td data-nodeid=\"2954\"><strong data-nodeid=\"3618\">\u95a2\u4fc2<\/strong><\/td>\n<td data-nodeid=\"2955\">\u30af\u30e9\u30b9\u9593\u306e\u95a2\u4fc2\u3092\u793a\u3059<\/td>\n<td data-nodeid=\"2956\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u793a\u3059<\/td>\n<\/tr>\n<tr data-nodeid=\"2957\">\n<td data-nodeid=\"2958\"><strong data-nodeid=\"3624\">\u5c5e\u6027<\/strong><\/td>\n<td data-nodeid=\"2959\">\u30af\u30e9\u30b9\u306e\u5c5e\u6027\uff08\u30e1\u30bd\u30c3\u30c9\u3092\u542b\u3080\uff09\u3092\u793a\u3059<\/td>\n<td data-nodeid=\"2960\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5c5e\u6027\uff08\u30c7\u30fc\u30bf\u306e\u307f\uff09\u3092\u793a\u3059<\/td>\n<\/tr>\n<tr data-nodeid=\"2961\">\n<td data-nodeid=\"2962\"><strong data-nodeid=\"3630\">\u4e3b\u306a\u7528\u9014<\/strong><\/td>\n<td data-nodeid=\"2963\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08<\/td>\n<td data-nodeid=\"2964\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr data-nodeid=\"2965\"\/>\n<h2 data-nodeid=\"2966\"><strong data-nodeid=\"3636\">4. \u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\uff1aEC\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a<\/strong><\/h2>\n<h3 data-nodeid=\"2967\"><strong data-nodeid=\"3640\">4.1 \u30b7\u30b9\u30c6\u30e0\u8981\u4ef6\u5206\u6790<\/strong><\/h3>\n<p data-nodeid=\"2968\">\u958b\u767a\u30c1\u30fc\u30e0\u306f\u3001\u95a2\u4fc2\u8005\u3068\u306e\u5e83\u7bc4\u306a\u30a4\u30f3\u30bf\u30d3\u30e5\u30fc\u3068\u8981\u4ef6\u53ce\u96c6\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u5b9f\u65bd\u3057\u305f\u3002\u7279\u5b9a\u3055\u308c\u305f\u4e3b\u8981\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff1a<\/p>\n<p data-nodeid=\"2969\"><strong data-nodeid=\"3645\">\u4e3b\u8981\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ol data-nodeid=\"2970\">\n<li data-nodeid=\"2971\">\n<p data-nodeid=\"2972\"><strong data-nodeid=\"3650\">\u9867\u5ba2<\/strong>\u00a0\u2013 \u767b\u9332\u3057\u3066\u8cfc\u5165\u3092\u884c\u3046\u30e6\u30fc\u30b6\u30fc<\/p>\n<\/li>\n<li data-nodeid=\"2973\">\n<p data-nodeid=\"2974\"><strong data-nodeid=\"3655\">\u5546\u54c1<\/strong>\u00a0\u2013 \u8ca9\u58f2\u53ef\u80fd\u306a\u30a2\u30a4\u30c6\u30e0<\/p>\n<\/li>\n<li data-nodeid=\"2975\">\n<p data-nodeid=\"2976\"><strong data-nodeid=\"3660\">\u6ce8\u6587<\/strong>\u00a0\u2013 \u9867\u5ba2\u304c\u958b\u59cb\u3059\u308b\u53d6\u5f15<\/p>\n<\/li>\n<li data-nodeid=\"2977\">\n<p data-nodeid=\"2978\"><strong data-nodeid=\"3665\">\u6ce8\u6587\u8a73\u7d30<\/strong>\u00a0\u2013 \u6ce8\u6587\u5185\u306e\u660e\u7d30\u9805\u76ee<\/p>\n<\/li>\n<\/ol>\n<p data-nodeid=\"2979\"><strong data-nodeid=\"3669\">\u4e3b\u8981\u306a\u95a2\u4fc2\uff1a<\/strong><\/p>\n<ul data-nodeid=\"2980\">\n<li data-nodeid=\"2981\">\n<p data-nodeid=\"2982\">1\u4eba\u306e\u9867\u5ba2\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b\uff081:N\uff09<\/p>\n<\/li>\n<li data-nodeid=\"2983\">\n<p data-nodeid=\"2984\">1\u3064\u306e\u6ce8\u6587\u306f\u8907\u6570\u306e\u5546\u54c1\u3092\u542b\u3080\u3053\u3068\u304c\u3067\u304d\u308b\uff08M:N\uff09<\/p>\n<\/li>\n<li data-nodeid=\"2985\">\n<p data-nodeid=\"2986\">1\u3064\u306e\u5546\u54c1\u306f\u8907\u6570\u306e\u6ce8\u6587\u306b\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\uff08M:N\uff09<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"2987\"><strong data-nodeid=\"3676\">4.2 \u30af\u30e9\u30b9\u56f3\u306e\u4f5c\u6210<\/strong><\/h3>\n<p data-nodeid=\"2988\">\u30af\u30e9\u30b9\u56f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u30af\u30e9\u30b9\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u95a2\u4fc2\u6027\u306e\u6982\u8981\u3092\u63d0\u4f9b\u3059\u308b\u3002\u5f53\u793e\u306e\u96fb\u5b50\u5546\u53d6\u5f15\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u306f\u3001Customer\u3001Product\u3001Order \u306e\u5404\u30af\u30e9\u30b9\u304c\u7279\u5b9a\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u306b\u56fa\u6709\u306e\u5c5e\u6027\u3068\u30e1\u30bd\u30c3\u30c9\u304c\u5b58\u5728\u3059\u308b\u3002<\/p>\n<p data-nodeid=\"2989\"><img alt=\"UML Class Diagram for Customer-Order-Product example\" data-nodeid=\"3680\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/customer-order-and-product-class-diagram.png\"\/><\/p>\n<p data-nodeid=\"2990\"><strong data-nodeid=\"3684\">\u30af\u30e9\u30b9\u4ed5\u69d8\uff1a<\/strong><\/p>\n<p data-nodeid=\"2991\"><strong data-nodeid=\"3688\">Customer \u30af\u30e9\u30b9\uff1a<\/strong><\/p>\n<ul data-nodeid=\"2992\">\n<li data-nodeid=\"2993\">\n<p data-nodeid=\"2994\"><strong data-nodeid=\"3693\">\u5c5e\u6027\uff1a<\/strong>\u00a0customerId\u3001name\u3001email\u3001password\u3001phoneNumber\u3001address<\/p>\n<\/li>\n<li data-nodeid=\"2995\">\n<p data-nodeid=\"2996\"><strong data-nodeid=\"3698\">\u30e1\u30bd\u30c3\u30c9\uff1a<\/strong>\u00a0register()\u3001login()\u3001updateProfile()\u3001viewOrderHistory()<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"2997\"><strong data-nodeid=\"3702\">Product \u30af\u30e9\u30b9\uff1a<\/strong><\/p>\n<ul data-nodeid=\"2998\">\n<li data-nodeid=\"2999\">\n<p data-nodeid=\"3000\"><strong data-nodeid=\"3707\">\u5c5e\u6027\uff1a<\/strong>\u00a0productId\u3001name\u3001description\u3001price\u3001stockQuantity\u3001category<\/p>\n<\/li>\n<li data-nodeid=\"3001\">\n<p data-nodeid=\"3002\"><strong data-nodeid=\"3712\">\u30e1\u30bd\u30c3\u30c9\uff1a<\/strong>\u00a0getProductDetails()\u3001updateStock()\u3001calculateDiscount()<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3003\"><strong data-nodeid=\"3716\">Order \u30af\u30e9\u30b9\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3004\">\n<li data-nodeid=\"3005\">\n<p data-nodeid=\"3006\"><strong data-nodeid=\"3721\">\u5c5e\u6027\uff1a<\/strong>\u00a0orderId\u3001orderDate\u3001totalPrice\u3001status\u3001shippingAddress<\/p>\n<\/li>\n<li data-nodeid=\"3007\">\n<p data-nodeid=\"3008\"><strong data-nodeid=\"3726\">\u30e1\u30bd\u30c3\u30c9\uff1a<\/strong>\u00a0placeOrder()\u3001cancelOrder()\u3001trackOrder()\u3001calculateTotal()<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3009\"><strong data-nodeid=\"3730\">\u8b58\u5225\u3055\u308c\u305f\u95a2\u4fc2\u6027\uff1a<\/strong><\/p>\n<ol data-nodeid=\"3010\">\n<li data-nodeid=\"3011\">\n<p data-nodeid=\"3012\"><strong data-nodeid=\"3734\">\u95a2\u9023 (Customer \u2194 Order)\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3013\">\n<li data-nodeid=\"3014\">\n<p data-nodeid=\"3015\">1\u5bfe\u591a\u306e\u95a2\u4fc2<\/p>\n<\/li>\n<li data-nodeid=\"3016\">\n<p data-nodeid=\"3017\">\u9867\u5ba2\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3018\">\n<p data-nodeid=\"3019\">\u57fa\u6570\uff1a1..*<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3020\">\n<p data-nodeid=\"3021\"><strong data-nodeid=\"3742\">\u95a2\u9023 (Order \u2194 Product)\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3022\">\n<li data-nodeid=\"3023\">\n<p data-nodeid=\"3024\">\u591a\u5bfe\u591a\u306e\u95a2\u4fc2<\/p>\n<\/li>\n<li data-nodeid=\"3025\">\n<p data-nodeid=\"3026\">\u6ce8\u6587\u306b\u306f\u8907\u6570\u306e\u5546\u54c1\u304c\u542b\u307e\u308c\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3027\">\n<p data-nodeid=\"3028\">\u5546\u54c1\u306f\u8907\u6570\u306e\u6ce8\u6587\u306b\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3029\">\n<p data-nodeid=\"3030\">\u4e2d\u9593\u30af\u30e9\u30b9\u304c\u5fc5\u8981\uff1aOrderProduct<\/p>\n<\/li>\n<li data-nodeid=\"3031\">\n<p data-nodeid=\"3032\">\u57fa\u6570\uff1a<em data-nodeid=\"3751\">..<\/em><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3033\">\n<p data-nodeid=\"3034\"><strong data-nodeid=\"3755\">\u96c6\u7d04 (Order \u2192 OrderProduct):<\/strong><\/p>\n<ul data-nodeid=\"3035\">\n<li data-nodeid=\"3036\">\n<p data-nodeid=\"3037\">Order\u306fOrderProduct\u306e\u9805\u76ee\u3092\u542b\u3080<\/p>\n<\/li>\n<li data-nodeid=\"3038\">\n<p data-nodeid=\"3039\">OrderProduct\u306f\u72ec\u7acb\u3057\u3066\u5b58\u5728\u3067\u304d\u308b<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3040\">\n<p data-nodeid=\"3041\"><strong data-nodeid=\"3761\">\u5408\u6210 (OrderProduct \u2192 Product):<\/strong><\/p>\n<ul data-nodeid=\"3042\">\n<li data-nodeid=\"3043\">\n<p data-nodeid=\"3044\">\u6ce8\u6587\u660e\u7d30\u9805\u76ee\u3068\u88fd\u54c1\u306e\u9593\u306b\u306f\u5f37\u3044\u95a2\u4fc2\u304c\u3042\u308b<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3045\"><strong data-nodeid=\"3766\">\u9069\u7528\u3055\u308c\u305fUML\u95a2\u4fc2\u30bf\u30a4\u30d7\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3046\">\n<li data-nodeid=\"3047\">\n<p data-nodeid=\"3048\"><strong data-nodeid=\"3771\">\u95a2\u9023\uff1a<\/strong>\u00a0Customer\u3068Order\u306e\u57fa\u672c\u7684\u306a\u95a2\u4fc2<\/p>\n<\/li>\n<li data-nodeid=\"3049\">\n<p data-nodeid=\"3050\"><strong data-nodeid=\"3780\">\u96c6\u7d04\uff1a<\/strong>\u00a0Order\u306fOrderProduct\u300c\u3092\u6301\u3064\u300d\uff08\u7a7a\u6d1e\u306e\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\uff09<\/p>\n<\/li>\n<li data-nodeid=\"3051\">\n<p data-nodeid=\"3052\"><strong data-nodeid=\"3785\">\u5408\u6210\uff1a<\/strong>\u00a0OrderProduct\u306fProduct\u3092\u5f37\u304f\u53c2\u7167\u3059\u308b\uff08\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\uff09<\/p>\n<\/li>\n<li data-nodeid=\"3053\">\n<p data-nodeid=\"3054\"><strong data-nodeid=\"3790\">\u4f9d\u5b58\uff1a<\/strong>\u00a0Order\u306f\u4fa1\u683c\u60c5\u5831\u306e\u305f\u3081Product\u306b\u4f9d\u5b58\u3059\u308b\uff08\u7834\u7dda\u306e\u77e2\u5370\uff09<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"3055\"><strong data-nodeid=\"3794\">4.3 \u691c\u8a3c\u306e\u305f\u3081\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306e\u4f5c\u6210<\/strong><\/h3>\n<p data-nodeid=\"3056\">\u30af\u30e9\u30b9\u56f3\u304c\u8a2d\u8a08\u306e\u8a2d\u8a08\u56f3\u3092\u63d0\u4f9b\u3057\u305f\u4e00\u65b9\u3067\u3001\u30c1\u30fc\u30e0\u306f\u5177\u4f53\u7684\u306a\u4f8b\u3092\u7528\u3044\u3066\u8a2d\u8a08\u3092\u691c\u8a3c\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3001\u7279\u5b9a\u306e\u6642\u70b9\u306b\u304a\u3051\u308b\u7279\u5b9a\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8868\u3059\u305f\u3081\u306b\u4f5c\u6210\u3055\u308c\u305f\u3002<\/p>\n<p data-nodeid=\"3057\"><img alt=\"UML Object Diagram for a Customer-Order-Product example\" data-nodeid=\"3798\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/customer-order-and-product-object-diagram.png\"\/><\/p>\n<p data-nodeid=\"3058\"><strong data-nodeid=\"3802\">\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u4f8b\uff1a<\/strong><\/p>\n<p data-nodeid=\"3059\"><strong data-nodeid=\"3806\">Customer\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3060\">\n<li data-nodeid=\"3061\">\n<p data-nodeid=\"3062\">customerId: C12345<\/p>\n<\/li>\n<li data-nodeid=\"3063\">\n<p data-nodeid=\"3064\">name: \u201cJohn Smith\u201d<\/p>\n<\/li>\n<li data-nodeid=\"3065\">\n<p data-nodeid=\"3066\">email: \u201cjohn.smith@email.com\u201d<\/p>\n<\/li>\n<li data-nodeid=\"3067\">\n<p data-nodeid=\"3068\">phoneNumber: \u201c+1-555-0123\u201d<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3069\"><strong data-nodeid=\"3823\">Order\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3070\">\n<li data-nodeid=\"3071\">\n<p data-nodeid=\"3072\">orderId: ORD-2024-001<\/p>\n<\/li>\n<li data-nodeid=\"3073\">\n<p data-nodeid=\"3074\">orderDate: \u201c2024-01-15T10:30:00\u201d<\/p>\n<\/li>\n<li data-nodeid=\"3075\">\n<p data-nodeid=\"3076\">totalPrice: 299.97<\/p>\n<\/li>\n<li data-nodeid=\"3077\">\n<p data-nodeid=\"3078\">status: \u201c\u51e6\u7406\u4e2d\u201d<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3079\"><strong data-nodeid=\"3837\">Product\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff1a<\/strong><\/p>\n<ol data-nodeid=\"3080\">\n<li data-nodeid=\"3081\">\n<p data-nodeid=\"3082\">Product 1:<\/p>\n<ul data-nodeid=\"3083\">\n<li data-nodeid=\"3084\">\n<p data-nodeid=\"3085\">productId: P001<\/p>\n<\/li>\n<li data-nodeid=\"3086\">\n<p data-nodeid=\"3087\">\u540d\u524d: \u300c\u30ef\u30a4\u30e4\u30ec\u30b9\u30d8\u30c3\u30c9\u30d5\u30a9\u30f3\u300d<\/p>\n<\/li>\n<li data-nodeid=\"3088\">\n<p data-nodeid=\"3089\">\u4fa1\u683c: 79.99<\/p>\n<\/li>\n<li data-nodeid=\"3090\">\n<p data-nodeid=\"3091\">\u6570\u91cf: 2<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3092\">\n<p data-nodeid=\"3093\">\u88fd\u54c12:<\/p>\n<ul data-nodeid=\"3094\">\n<li data-nodeid=\"3095\">\n<p data-nodeid=\"3096\">\u88fd\u54c1ID: P045<\/p>\n<\/li>\n<li data-nodeid=\"3097\">\n<p data-nodeid=\"3098\">\u540d\u524d: \u300cUSB-C\u30b1\u30fc\u30d6\u30eb\u300d<\/p>\n<\/li>\n<li data-nodeid=\"3099\">\n<p data-nodeid=\"3100\">\u4fa1\u683c: 19.99<\/p>\n<\/li>\n<li data-nodeid=\"3101\">\n<p data-nodeid=\"3102\">\u6570\u91cf: 1<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3103\">\n<p data-nodeid=\"3104\">\u88fd\u54c13:<\/p>\n<ul data-nodeid=\"3105\">\n<li data-nodeid=\"3106\">\n<p data-nodeid=\"3107\">\u88fd\u54c1ID: P128<\/p>\n<\/li>\n<li data-nodeid=\"3108\">\n<p data-nodeid=\"3109\">\u540d\u524d: \u300c\u30b9\u30de\u30db\u30b1\u30fc\u30b9\u300d<\/p>\n<\/li>\n<li data-nodeid=\"3110\">\n<p data-nodeid=\"3111\">\u4fa1\u683c: 24.99<\/p>\n<\/li>\n<li data-nodeid=\"3112\">\n<p data-nodeid=\"3113\">\u6570\u91cf: 5<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3114\"><strong data-nodeid=\"3865\">\u691c\u8a3c\u306e\u6d1e\u5bdf:<\/strong><\/p>\n<p data-nodeid=\"3115\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u304b\u3089\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u70b9\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f:<\/p>\n<ol data-nodeid=\"3116\">\n<li data-nodeid=\"3117\">\n<p data-nodeid=\"3118\"><strong data-nodeid=\"3871\">\u30c7\u30fc\u30bf\u6574\u5408\u6027:<\/strong>\u5fc5\u9808\u306e\u5c5e\u6027\u3059\u3079\u3066\u304c\u9069\u5207\u306a\u5024\u3092\u6301\u3063\u3066\u3044\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3119\">\n<p data-nodeid=\"3120\"><strong data-nodeid=\"3876\">\u95a2\u4fc2\u306e\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3:<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u95a2\u4fc2\u3092\u6b63\u3057\u304f\u305f\u3069\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u691c\u8a3c\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3121\">\n<p data-nodeid=\"3122\"><strong data-nodeid=\"3881\">\u591a\u91cd\u6027\u306e\u691c\u8a3c:<\/strong>1\u4eba\u306e\u9867\u5ba2\u304c\u8907\u6570\u306e\u6ce8\u6587\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3123\">\n<p data-nodeid=\"3124\"><strong data-nodeid=\"3886\">\u72b6\u614b\u306e\u8868\u73fe:<\/strong>\u7279\u5b9a\u306e\u6642\u70b9\u3067\u306e\u30b7\u30b9\u30c6\u30e0\u72b6\u614b\u3092\u793a\u3057\u305f\uff08\u6ce8\u6587\u306f\u5b8c\u4e86\u3057\u3066\u3044\u308b\u304c\u3001\u307e\u3060\u767a\u9001\u3055\u308c\u3066\u3044\u306a\u3044\uff09<\/p>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3125\"><strong data-nodeid=\"3890\">\u30c7\u30d0\u30c3\u30b0\u306e\u5229\u70b9:<\/strong><\/p>\n<p data-nodeid=\"3126\">\u30c6\u30b9\u30c8\u4e2d\u306b\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u4ee5\u4e0b\u306e\u70b9\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3063\u305f:<\/p>\n<ul data-nodeid=\"3127\">\n<li data-nodeid=\"3128\">\n<p data-nodeid=\"3129\">\u30aa\u30d7\u30b7\u30e7\u30f3\u5c5e\u6027\u306b\u5bfe\u3059\u308bnull\u30c1\u30a7\u30c3\u30af\u306e\u6b20\u843d<\/p>\n<\/li>\n<li data-nodeid=\"3130\">\n<p data-nodeid=\"3131\">\u5728\u5eab\u6570\u91cf\u306e\u66f4\u65b0\u306b\u304a\u3051\u308b\u6f5c\u5728\u7684\u306a\u7af6\u5408\u72b6\u614b<\/p>\n<\/li>\n<li data-nodeid=\"3132\">\n<p data-nodeid=\"3133\">\u6ce8\u6587\u5408\u8a08\u8a08\u7b97\u306e\u4e0d\u6574\u5408<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"3134\"><strong data-nodeid=\"3898\">4.4 ER\u56f3\u306e\u8a2d\u8a08<\/strong><\/h3>\n<p data-nodeid=\"3135\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u304c\u691c\u8a3c\u3055\u308c\u305f\u5f8c\u3001\u30c1\u30fc\u30e0\u306fER\u56f3\u3092\u7528\u3044\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306b\u79fb\u884c\u3057\u305f\u3002\u3053\u306e\u56f3\u306f\u3001\u95a2\u4fc2\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u8a2d\u8a08\u56f3\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3002<\/p>\n<p data-nodeid=\"3136\"><img alt=\"ER Diagram for a Customer-Order-Product example\" data-nodeid=\"3902\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/customer-order-and-product-er-diagram.png\"\/><\/p>\n<p data-nodeid=\"3137\"><strong data-nodeid=\"3906\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u4ed5\u69d8\uff1a<\/strong><\/p>\n<p data-nodeid=\"3138\"><strong data-nodeid=\"3910\">\u9867\u5ba2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3139\">\n<li data-nodeid=\"3140\">\n<p data-nodeid=\"3141\"><strong data-nodeid=\"3917\">\u4e3b\u30ad\u30fc\uff1a<\/strong>\u00a0customer_id<\/p>\n<\/li>\n<li data-nodeid=\"3142\">\n<p data-nodeid=\"3143\"><strong data-nodeid=\"3926\">\u5c5e\u6027\uff1a<\/strong>\u00a0name, email, password (\u30cf\u30c3\u30b7\u30e5\u5316\u6e08\u307f), phone_number, address, created_at<\/p>\n<\/li>\n<li data-nodeid=\"3144\">\n<p data-nodeid=\"3145\"><strong data-nodeid=\"3931\">\u5236\u7d04\uff1a<\/strong>\u00a0email\u306f\u4e00\u610f\u3001\u91cd\u8981\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306fNOT NULL<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3146\"><strong data-nodeid=\"3935\">\u88fd\u54c1\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3147\">\n<li data-nodeid=\"3148\">\n<p data-nodeid=\"3149\"><strong data-nodeid=\"3942\">\u4e3b\u30ad\u30fc\uff1a<\/strong>\u00a0product_id<\/p>\n<\/li>\n<li data-nodeid=\"3150\">\n<p data-nodeid=\"3151\"><strong data-nodeid=\"3949\">\u5c5e\u6027\uff1a<\/strong>\u00a0name, description, price, stock_quantity, category, sku<\/p>\n<\/li>\n<li data-nodeid=\"3152\">\n<p data-nodeid=\"3153\"><strong data-nodeid=\"3956\">\u5236\u7d04\uff1a<\/strong>\u00a0price &gt; 0, stock_quantity &gt;= 0<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3154\"><strong data-nodeid=\"3960\">\u6ce8\u6587\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3155\">\n<li data-nodeid=\"3156\">\n<p data-nodeid=\"3157\"><strong data-nodeid=\"3967\">\u4e3b\u30ad\u30fc\uff1a<\/strong>\u00a0order_id<\/p>\n<\/li>\n<li data-nodeid=\"3158\">\n<p data-nodeid=\"3159\"><strong data-nodeid=\"3974\">\u5916\u90e8\u30ad\u30fc\uff1a<\/strong>\u00a0customer_id \u2192 \u9867\u5ba2<\/p>\n<\/li>\n<li data-nodeid=\"3160\">\n<p data-nodeid=\"3161\"><strong data-nodeid=\"3987\">\u5c5e\u6027\uff1a<\/strong>\u00a0order_date, total_price, status, shipping_address, payment_method<\/p>\n<\/li>\n<li data-nodeid=\"3162\">\n<p data-nodeid=\"3163\"><strong data-nodeid=\"4012\">\u5236\u7d04\uff1a<\/strong>\u00a0status IN (\u2018\u4fdd\u7559\u4e2d\u2019, \u2018\u51e6\u7406\u4e2d\u2019, \u2018\u51fa\u8377\u6e08\u307f\u2019, \u2018\u914d\u9001\u5b8c\u4e86\u2019, \u2018\u30ad\u30e3\u30f3\u30bb\u30eb\u6e08\u307f\u2019)<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3164\"><strong data-nodeid=\"4018\">\u6ce8\u6587-\u88fd\u54c1\u7d50\u5408\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3165\">\n<li data-nodeid=\"3166\">\n<p data-nodeid=\"3167\"><strong data-nodeid=\"4027\">\u8907\u5408\u4e3b\u30ad\u30fc\uff1a<\/strong>\u00a0(order_id, product_id)<\/p>\n<\/li>\n<li data-nodeid=\"3168\">\n<p data-nodeid=\"3169\"><strong data-nodeid=\"4031\">\u5916\u90e8\u30ad\u30fc\uff1a<\/strong><\/p>\n<ul data-nodeid=\"3170\">\n<li data-nodeid=\"3171\">\n<p data-nodeid=\"3172\">order_id \u2192 \u6ce8\u6587<\/p>\n<\/li>\n<li data-nodeid=\"3173\">\n<p data-nodeid=\"3174\">product_id \u2192 \u88fd\u54c1<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3175\">\n<p data-nodeid=\"3176\"><strong data-nodeid=\"4044\">\u5c5e\u6027:<\/strong>\u6570\u91cf\u3001\u5358\u4fa1\uff08\u8cfc\u5165\u6642\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\uff09<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3177\"><strong data-nodeid=\"4048\">\u95a2\u4fc2\u306e\u57fa\u6570:<\/strong><\/p>\n<ol data-nodeid=\"3178\">\n<li data-nodeid=\"3179\">\n<p data-nodeid=\"3180\"><strong data-nodeid=\"4053\">\u9867\u5ba2\u304b\u3089\u6ce8\u6587:<\/strong>1:N\uff081\u5bfe\u591a\uff09<\/p>\n<ul data-nodeid=\"3181\">\n<li data-nodeid=\"3182\">\n<p data-nodeid=\"3183\">1\u4eba\u306e\u9867\u5ba2\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3184\">\n<p data-nodeid=\"3185\">\u5404\u6ce8\u6587\u306f\u6b63\u78ba\u306b1\u4eba\u306e\u9867\u5ba2\u306b\u5c5e\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3186\">\n<p data-nodeid=\"3187\"><strong data-nodeid=\"4060\">\u6ce8\u6587\u304b\u3089\u5546\u54c1:<\/strong>M:N\uff08\u591a\u5bfe\u591a\uff09<\/p>\n<ul data-nodeid=\"3188\">\n<li data-nodeid=\"3189\">\n<p data-nodeid=\"3190\">Order_Product\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u3092\u901a\u3058\u3066\u89e3\u6c7a<\/p>\n<\/li>\n<li data-nodeid=\"3191\">\n<p data-nodeid=\"3192\">\u8cfc\u5165\u6642\u306e\u6570\u91cf\u3068\u4fa1\u683c\u3092\u8a18\u9332<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3193\"><strong data-nodeid=\"4068\">ER\u56f3\u3068\u30af\u30e9\u30b9\u56f3\u306e\u6574\u5408\u6027:<\/strong><\/p>\n<p data-nodeid=\"3194\">\u30c1\u30fc\u30e0\u306f\u30af\u30e9\u30b9\u56f3\u3068ER\u56f3\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3057\u305f:<\/p>\n<ul data-nodeid=\"3195\">\n<li data-nodeid=\"3196\">\n<p data-nodeid=\"3197\">\u5404\u30af\u30e9\u30b9\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u5fdc\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3198\">\n<p data-nodeid=\"3199\">\u5c5e\u6027\u306f\u4fdd\u6301\u3055\u308c\u305f\uff08ER\u56f3\u3067\u306f\u30e1\u30bd\u30c3\u30c9\u306f\u9664\u5916\uff09<\/p>\n<\/li>\n<li data-nodeid=\"3200\">\n<p data-nodeid=\"3201\">\u95a2\u4fc2\u306f\u5916\u90e8\u30ad\u30fc\u306b\u5909\u63db\u3055\u308c\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3202\">\n<p data-nodeid=\"3203\">\u57fa\u6570\u306f\u7dad\u6301\u3055\u308c\u305f<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"3204\"><strong data-nodeid=\"4077\">4.5 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u751f\u6210<\/strong><\/h3>\n<p data-nodeid=\"3205\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u306b\u57fa\u3065\u304d\u3001\u30c1\u30fc\u30e0\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8ad6\u7406\u69cb\u9020\u3092\u8868\u3059\u5305\u62ec\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u4f5c\u6210\u3057\u305f\u3002<\/p>\n<p data-nodeid=\"3206\"><strong data-nodeid=\"4082\">SQL\u30b9\u30ad\u30fc\u30de\u306e\u5b9f\u88c5:<\/strong><\/p>\n<pre class=\"lang-sql\" data-nodeid=\"3207\"><code data-language=\"sql\">-- \u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE Customer (\r\n    customer_id INT PRIMARY KEY AUTO_INCREMENT,\r\n    name VARCHAR(100) NOT NULL,\r\n    email VARCHAR(255) UNIQUE NOT NULL,\r\n    password_hash VARCHAR(255) NOT NULL,\r\n    phone_number VARCHAR(20),\r\n    address TEXT,\r\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\r\n    INDEX idx_email (email),\r\n    INDEX idx_name (name)\r\n);\r\n\r\n-- \u5546\u54c1\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE Product (\r\n    product_id INT PRIMARY KEY AUTO_INCREMENT,\r\n    name VARCHAR(200) NOT NULL,\r\n    description TEXT,\r\n    price DECIMAL(10, 2) NOT NULL CHECK (price &gt;= 0),\r\n    stock_quantity INT NOT NULL DEFAULT 0 CHECK (stock_quantity &gt;= 0),\r\n    category VARCHAR(100),\r\n    sku VARCHAR(50) UNIQUE,\r\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\r\n    INDEX idx_category (category),\r\n    INDEX idx_price (price),\r\n    FULLTEXT idx_search (name, description)\r\n);\r\n\r\n-- \u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE `Order` (\r\n    order_id INT PRIMARY KEY AUTO_INCREMENT,\r\n    customer_id INT NOT NULL,\r\n    order_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    total_price DECIMAL(10, 2) NOT NULL,\r\n    status ENUM('\u4fdd\u7559\u4e2d', '\u51e6\u7406\u4e2d', '\u51fa\u8377\u6e08\u307f', '\u914d\u9001\u5b8c\u4e86', '\u30ad\u30e3\u30f3\u30bb\u30eb') DEFAULT '\u4fdd\u7559\u4e2d',\r\n    shipping_address TEXT NOT NULL,\r\n    payment_method VARCHAR(50),\r\n    payment_status ENUM('\u4fdd\u7559\u4e2d', '\u5b8c\u4e86', '\u5931\u6557', '\u8fd4\u91d1\u6e08\u307f') DEFAULT '\u4fdd\u7559\u4e2d',\r\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\r\n    FOREIGN KEY (customer_id) REFERENCES Customer(customer_id) ON DELETE RESTRICT,\r\n    INDEX idx_customer (customer_id),\r\n    INDEX idx_order_date (order_date),\r\n    INDEX idx_status (status)\r\n);\r\n\r\n-- \u6ce8\u6587_\u5546\u54c1\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE Order_Product (\r\n    order_id INT NOT NULL,\r\n    product_id INT NOT NULL,\r\n    quantity INT NOT NULL CHECK (quantity &gt; 0),\r\n    unit_price DECIMAL(10, 2) NOT NULL,\r\n    subtotal DECIMAL(10, 2) GENERATED ALWAYS AS (quantity * unit_price) STORED,\r\n    PRIMARY KEY (order_id, product_id),\r\n    FOREIGN KEY (order_id) REFERENCES `Order`(order_id) ON DELETE CASCADE,\r\n    FOREIGN KEY (product_id) REFERENCES Product(product_id) ON DELETE RESTRICT,\r\n    INDEX idx_product (product_id)\r\n);\r\n\r\n-- \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u305f\u3081\u306e\u8ffd\u52a0\u30b5\u30dd\u30fc\u30c8\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE Order_History (\r\n    history_id INT PRIMARY KEY AUTO_INCREMENT,\r\n    order_id INT NOT NULL,\r\n    status_change VARCHAR(50),\r\n    changed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    notes TEXT,\r\n    FOREIGN KEY (order_id) REFERENCES `Order`(order_id) ON DELETE CASCADE\r\n);\r\n\r\nCREATE TABLE Product_Review (\r\n    review_id INT PRIMARY KEY AUTO_INCREMENT,\r\n    product_id INT NOT NULL,\r\n    customer_id INT NOT NULL,\r\n    rating INT CHECK (rating BETWEEN 1 AND 5),\r\n    review_text TEXT,\r\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\r\n    FOREIGN KEY (product_id) REFERENCES Product(product_id) ON DELETE CASCADE,\r\n    FOREIGN KEY (customer_id) REFERENCES Customer(customer_id) ON DELETE CASCADE,\r\n    UNIQUE KEY unique_customer_product (customer_id, product_id)\r\n);\r\n<\/code><\/pre>\n<p data-nodeid=\"3208\"><strong data-nodeid=\"4086\">\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u6c7a\u5b9a\u4e8b\u9805:<\/strong><\/p>\n<ol data-nodeid=\"3209\">\n<li data-nodeid=\"3210\">\n<p data-nodeid=\"3211\"><strong data-nodeid=\"4090\">\u30c7\u30fc\u30bf\u578b:<\/strong><\/p>\n<ul data-nodeid=\"3212\">\n<li data-nodeid=\"3213\">\n<p data-nodeid=\"3214\">\u6d6e\u52d5\u5c0f\u6570\u70b9\u306e\u7cbe\u5ea6\u554f\u984c\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u91d1\u984d\u306b\u306fDECIMAL\u3092\u4f7f\u7528\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3215\">\n<p data-nodeid=\"3216\">\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30d5\u30a3\u30fc\u30eb\u30c9\u306bENUM\u3092\u5b9f\u88c5\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3217\">\n<p data-nodeid=\"3218\">\u81ea\u52d5\u5c0f\u8a08\u8a08\u7b97\u306e\u305f\u3081\u3001GENERATED\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3057\u305f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3219\">\n<p data-nodeid=\"3220\"><strong data-nodeid=\"4097\">\u5236\u7d04:<\/strong><\/p>\n<ul data-nodeid=\"3221\">\n<li data-nodeid=\"3222\">\n<p data-nodeid=\"3223\">\u8ca0\u306e\u4fa1\u683c\u3084\u6570\u91cf\u3092\u9632\u3050\u305f\u3081\u306eCHECK\u5236\u7d04<\/p>\n<\/li>\n<li data-nodeid=\"3224\">\n<p data-nodeid=\"3225\">\u9069\u5207\u306aON DELETE\u52d5\u4f5c\u3092\u6301\u3064\u5916\u90e8\u30ad\u30fc\u5236\u7d04<\/p>\n<\/li>\n<li data-nodeid=\"3226\">\n<p data-nodeid=\"3227\">\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3068SKU\u306bUNIQUE\u5236\u7d04\u3092\u8a2d\u5b9a<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3228\">\n<p data-nodeid=\"3229\"><strong data-nodeid=\"4104\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9:<\/strong><\/p>\n<ul data-nodeid=\"3230\">\n<li data-nodeid=\"3231\">\n<p data-nodeid=\"3232\">\u983b\u7e41\u306b\u30af\u30a8\u30ea\u3055\u308c\u308b\u30ab\u30e9\u30e0\uff08email\u3001customer_id\u3001order_date\uff09\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3233\">\n<p data-nodeid=\"3234\">\u88fd\u54c1\u691c\u7d22\u6a5f\u80fd\u7528\u306bFULLTEXT\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3235\">\n<p data-nodeid=\"3236\">\u4e00\u822c\u7684\u306a\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u7528\u306e\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-nodeid=\"3237\">\n<p data-nodeid=\"3238\"><strong data-nodeid=\"4115\">\u76e3\u67fb\u30c8\u30ec\u30fc\u30eb:<\/strong><\/p>\n<ul data-nodeid=\"3239\">\n<li data-nodeid=\"3240\">\n<p data-nodeid=\"3241\">\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u306bcreated_at\u304a\u3088\u3073updated_at\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3242\">\n<p data-nodeid=\"3243\">\u6ce8\u6587\u30b9\u30c6\u30fc\u30bf\u30b9\u306e\u5909\u66f4\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306eOrder_History\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3244\"><strong data-nodeid=\"4127\">\u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u306e\u633f\u5165:<\/strong><\/p>\n<pre class=\"lang-sql\" data-nodeid=\"3245\"><code data-language=\"sql\">-- \u30b5\u30f3\u30d7\u30eb\u9867\u5ba2\u306e\u633f\u5165\r\nINSERT INTO Customer (name, email, password_hash, phone_number, address)\r\nVALUES ('\u30b8\u30e7\u30f3\u30fb\u30b9\u30df\u30b9', 'john.smith@email.com', '$2b$12$...', '+1-555-0123', '123 \u30e1\u30a4\u30f3\u30b9\u30c8\u30ea\u30fc\u30c8\u3001\u30b7\u30c6\u30a3\u3001\u30b9\u30c6\u30fc\u30c8 12345');\r\n\r\n-- \u30b5\u30f3\u30d7\u30eb\u88fd\u54c1\u306e\u633f\u5165\r\nINSERT INTO Product (name, description, price, stock_quantity, category, sku)\r\nVALUES \r\n('\u30ef\u30a4\u30e4\u30ec\u30b9\u30d8\u30c3\u30c9\u30d5\u30a9\u30f3', '\u9ad8\u7d1a\u30ce\u30a4\u30ba\u30ad\u30e3\u30f3\u30bb\u30ea\u30f3\u30b0\u30d8\u30c3\u30c9\u30d5\u30a9\u30f3', 79.99, 150, '\u96fb\u5b50\u6a5f\u5668', 'WH-001'),\r\n('USB-C\u30b1\u30fc\u30d6\u30eb', '6\u30d5\u30a3\u30fc\u30c8\u7de8\u7d44\u5145\u96fb\u30b1\u30fc\u30d6\u30eb', 19.99, 500, '\u30a2\u30af\u30bb\u30b5\u30ea\u30fc', 'UC-045'),\r\n('\u30b9\u30de\u30db\u30b1\u30fc\u30b9', '\u4fdd\u8b77\u7528\u30b7\u30ea\u30b3\u30fc\u30f3\u30b1\u30fc\u30b9', 24.99, 300, '\u30a2\u30af\u30bb\u30b5\u30ea\u30fc', 'PC-128');\r\n\r\n-- \u30b5\u30f3\u30d7\u30eb\u6ce8\u6587\u306e\u633f\u5165\r\nINSERT INTO `Order` (customer_id, total_price, status, shipping_address, payment_method)\r\nVALUES (1, 299.97, '\u51e6\u7406\u4e2d', '123 \u30e1\u30a4\u30f3\u30b9\u30c8\u30ea\u30fc\u30c8\u3001\u30b7\u30c6\u30a3\u3001\u30b9\u30c6\u30fc\u30c8 12345', '\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9');\r\n\r\n-- \u6ce8\u6587\u30a2\u30a4\u30c6\u30e0\u306e\u633f\u5165\r\nINSERT INTO Order_Product (order_id, product_id, quantity, unit_price)\r\nVALUES \r\n(1, 1, 2, 79.99),\r\n(1, 2, 1, 19.99),\r\n(1, 3, 5, 24.99);<\/code><\/pre>\n<hr data-nodeid=\"3246\"\/>\n<h2 data-nodeid=\"3247\"><strong data-nodeid=\"4131\">5. \u6bd4\u8f03\u5206\u6790\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/h2>\n<h3 data-nodeid=\"3248\"><strong data-nodeid=\"4135\">5.1 \u56f3\u306e\u7a2e\u985e\u3054\u3068\u306e\u4f7f\u7528\u30bf\u30a4\u30df\u30f3\u30b0<\/strong><\/h3>\n<p data-nodeid=\"3249\"><img alt=\"Class Diagram, Object Diagram and ERD for a Customer-Order-Product example\" data-nodeid=\"4138\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/class-diagram-object-diagram-er-diagram.png\"\/><\/p>\n<p data-nodeid=\"3250\"><strong data-nodeid=\"4142\">\u30af\u30e9\u30b9\u56f3 \u2013 \u6b21\u306e\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b:<\/strong><\/p>\n<ul data-nodeid=\"3251\">\n<li data-nodeid=\"3252\">\n<p data-nodeid=\"3253\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30b7\u30b9\u30c6\u30e0\u306e\u5168\u4f53\u7684\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u8a2d\u8a08\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3254\">\n<p data-nodeid=\"3255\">\u958b\u767a\u30c1\u30fc\u30e0\u306b\u30b7\u30b9\u30c6\u30e0\u69cb\u9020\u3092\u4f1d\u3048\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3256\">\n<p data-nodeid=\"3257\">\u7d99\u627f\u968e\u5c64\u3068\u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u306e\u632f\u308b\u821e\u3044\u3092\u8a08\u753b\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3258\">\n<p data-nodeid=\"3259\">\u516c\u958bAPI\u3084\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u6587\u66f8\u5316\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3260\">\n<p data-nodeid=\"3261\">\u5b9f\u88c5\u958b\u59cb\u524d\u306e\u521d\u671f\u8a2d\u8a08\u30d5\u30a7\u30fc\u30ba<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3262\"><strong data-nodeid=\"4151\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3 \u2013 \u6b21\u306e\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b:<\/strong><\/p>\n<ul data-nodeid=\"3263\">\n<li data-nodeid=\"3264\">\n<p data-nodeid=\"3265\">\u5177\u4f53\u7684\u306a\u4f8b\u3092\u4f7f\u3063\u3066\u30af\u30e9\u30b9\u56f3\u306e\u8a2d\u8a08\u3092\u691c\u8a3c\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3266\">\n<p data-nodeid=\"3267\">\u7279\u5b9a\u306e\u5b9f\u884c\u6642\u30b7\u30ca\u30ea\u30aa\u306e\u30c7\u30d0\u30c3\u30b0\u3092\u884c\u3046\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3268\">\n<p data-nodeid=\"3269\">\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u3084\u5883\u754c\u6761\u4ef6\u306e\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3270\">\n<p data-nodeid=\"3271\">\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306b\u30b7\u30b9\u30c6\u30e0\u306e\u632f\u308b\u821e\u3044\u3092\u8aac\u660e\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3272\">\n<p data-nodeid=\"3273\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u7528\u306b\u7279\u5b9a\u306e\u30b7\u30b9\u30c6\u30e0\u72b6\u614b\u3092\u6587\u66f8\u5316\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3274\"><strong data-nodeid=\"4160\">ER\u56f3 \u2013 \u6b21\u306e\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b:<\/strong><\/p>\n<ul data-nodeid=\"3275\">\n<li data-nodeid=\"3276\">\n<p data-nodeid=\"3277\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3278\">\n<p data-nodeid=\"3279\">\u30c7\u30fc\u30bf\u6c38\u7d9a\u5316\u6226\u7565\u3092\u8a08\u753b\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3280\">\n<p data-nodeid=\"3281\">\u9069\u5207\u306a\u6b63\u898f\u5316\u3092\u901a\u3058\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3282\">\n<p data-nodeid=\"3283\">DBA\u306b\u30c7\u30fc\u30bf\u8981\u4ef6\u3092\u4f1d\u3048\u308b\u3068\u304d<\/p>\n<\/li>\n<li data-nodeid=\"3284\">\n<p data-nodeid=\"3285\">\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u79fb\u884c\u3092\u884c\u3046\u3068\u304d<\/p>\n<\/li>\n<\/ul>\n<h3 data-nodeid=\"3286\"><strong data-nodeid=\"4169\">5.2 \u5b66\u7fd2\u3057\u305f\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/h3>\n<p data-nodeid=\"3287\"><strong data-nodeid=\"4173\">\u30af\u30e9\u30b9\u56f3\u958b\u767a\u304b\u3089:<\/strong><\/p>\n<ol data-nodeid=\"3288\">\n<li data-nodeid=\"3289\">\n<p data-nodeid=\"3290\"><strong data-nodeid=\"4178\">\u30b7\u30f3\u30d7\u30eb\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046:<\/strong>\u00a01\u3064\u306e\u56f3\u306b\u3042\u307e\u308a\u591a\u304f\u306e\u30af\u30e9\u30b9\u3092\u542b\u3081\u3059\u304e\u306a\u3044\u3088\u3046\u6ce8\u610f\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3291\">\n<p data-nodeid=\"3292\"><strong data-nodeid=\"4183\">\u610f\u5473\u306e\u3042\u308b\u540d\u524d\u3092\u4f7f\u7528\u3059\u308b:<\/strong>\u00a0\u30af\u30e9\u30b9\u540d\u304a\u3088\u3073\u5c5e\u6027\u540d\u306f\u30c9\u30e1\u30a4\u30f3\u8a00\u8a9e\u3092\u53cd\u6620\u3059\u308b\u3079\u304d\u3067\u3042\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3293\">\n<p data-nodeid=\"3294\"><strong data-nodeid=\"4188\">\u95a2\u4fc2\u3092\u6587\u66f8\u5316\u3059\u308b:<\/strong>\u00a0\u591a\u91cd\u6027\u304a\u3088\u3073\u95a2\u4fc2\u306e\u7a2e\u985e\u3092\u660e\u78ba\u306b\u6307\u5b9a\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3295\">\n<p data-nodeid=\"3296\"><strong data-nodeid=\"4193\">\u53cd\u5fa9\u3059\u308b:<\/strong>\u00a0\u8981\u4ef6\u306e\u7406\u89e3\u304c\u6df1\u307e\u308b\u306b\u3064\u308c\u3066\u56f3\u3092\u7cbe\u67fb\u3059\u308b<\/p>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3297\"><strong data-nodeid=\"4197\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u958b\u767a\u304b\u3089:<\/strong><\/p>\n<ol data-nodeid=\"3298\">\n<li data-nodeid=\"3299\">\n<p data-nodeid=\"3300\"><strong data-nodeid=\"4202\">\u4ee3\u8868\u7684\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u9078\u3076:<\/strong>\u00a0\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u304a\u3088\u3073\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u3092\u793a\u3059\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u9078\u629e\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3301\">\n<p data-nodeid=\"3302\"><strong data-nodeid=\"4207\">\u72b6\u614b\u60c5\u5831\u3092\u542b\u3081\u308b:<\/strong>\u00a0\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u3092\u793a\u3059\u5c5e\u6027\u5024\u3092\u8868\u793a\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3303\">\n<p data-nodeid=\"3304\"><strong data-nodeid=\"4212\">\u591a\u91cd\u6027\u3092\u691c\u8a3c\u3059\u308b:<\/strong>\u00a0\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u57fa\u6570\u5236\u7d04\u3092\u5c0a\u91cd\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3305\">\n<p data-nodeid=\"3306\"><strong data-nodeid=\"4217\">\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6d3b\u7528\u3059\u308b:<\/strong>\u00a0\u5177\u4f53\u7684\u306a\u4f8b\u3092\u6d3b\u7528\u3057\u3066\u62bd\u8c61\u7684\u306a\u6982\u5ff5\u3092\u8aac\u660e\u3059\u308b<\/p>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3307\"><strong data-nodeid=\"4221\">ER\u56f3\u958b\u767a\u304b\u3089:<\/strong><\/p>\n<ol data-nodeid=\"3308\">\n<li data-nodeid=\"3309\">\n<p data-nodeid=\"3310\"><strong data-nodeid=\"4226\">\u9069\u5207\u306b\u6b63\u898f\u5316\u3059\u308b:<\/strong>\u00a0\u6b63\u898f\u5316\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3311\">\n<p data-nodeid=\"3312\"><strong data-nodeid=\"4231\">\u6210\u9577\u3092\u898b\u636e\u3048\u305f\u8a08\u753b\u3092\u884c\u3046:<\/strong>\u00a0\u5c06\u6765\u306e\u8981\u4ef6\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3313\">\n<p data-nodeid=\"3314\"><strong data-nodeid=\"4236\">\u65e9\u671f\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u3092\u691c\u8a0e\u3059\u308b:<\/strong>\u00a0\u8a2d\u8a08\u6bb5\u968e\u3067\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u3092\u7279\u5b9a\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3315\">\n<p data-nodeid=\"3316\"><strong data-nodeid=\"4241\">\u5236\u7d04\u3092\u6587\u66f8\u5316\u3059\u308b:<\/strong>\u00a0\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5236\u7d04\u3068\u3057\u3066\u660e\u78ba\u306b\u6307\u5b9a\u3059\u308b<\/p>\n<\/li>\n<\/ol>\n<h3 data-nodeid=\"3317\"><strong data-nodeid=\"4245\">5.3 \u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/strong><\/h3>\n<p data-nodeid=\"3318\"><strong data-nodeid=\"4249\">\u843d\u3068\u3057\u7a741\uff1a\u56f3\u306e\u9593\u306e\u4e0d\u6574\u5408<\/strong><\/p>\n<ul data-nodeid=\"3319\">\n<li data-nodeid=\"3320\">\n<p data-nodeid=\"3321\"><em data-nodeid=\"4256\">\u554f\u984c:<\/em>\u30af\u30e9\u30b9\u56f3\u306fER\u56f3\u306b\u5909\u63db\u3067\u304d\u306a\u3044\u95a2\u4fc2\u3092\u793a\u3057\u3066\u3044\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3322\">\n<p data-nodeid=\"3323\"><em data-nodeid=\"4261\">\u89e3\u6c7a\u7b56\uff1a<\/em>\u30af\u30e9\u30b9\u3068\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3073\u3064\u3051\u308b\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u30de\u30c8\u30ea\u30af\u30b9\u3092\u7dad\u6301\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3324\"><strong data-nodeid=\"4265\">\u8ab2\u984c2\uff1a\u904e\u5270\u8a2d\u8a08<\/strong><\/p>\n<ul data-nodeid=\"3325\">\n<li data-nodeid=\"3326\">\n<p data-nodeid=\"3327\"><em data-nodeid=\"4270\">\u554f\u984c\uff1a<\/em>\u5358\u7d14\u306a\u8981\u4ef6\u306b\u5bfe\u3057\u3066\u3042\u307e\u308a\u306b\u3082\u591a\u304f\u306e\u30af\u30e9\u30b9\u3084\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068<\/p>\n<\/li>\n<li data-nodeid=\"3328\">\n<p data-nodeid=\"3329\"><em data-nodeid=\"4277\">\u89e3\u6c7a\u7b56\uff1a<\/em>YAGNI\uff08\u3042\u306a\u305f\u306f\u5fc5\u8981\u3068\u3057\u306a\u3044\u3060\u308d\u3046\uff09\u539f\u5247\u3092\u9069\u7528\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3330\"><strong data-nodeid=\"4281\">\u8ab2\u984c3\uff1a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u7121\u8996\u3059\u308b\u3053\u3068<\/strong><\/p>\n<ul data-nodeid=\"3331\">\n<li data-nodeid=\"3332\">\n<p data-nodeid=\"3333\"><em data-nodeid=\"4286\">\u554f\u984c\uff1a<\/em>\u5b8c\u5168\u306b\u6b63\u898f\u5316\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u3060\u304c\u3001\u30af\u30a8\u30ea\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u60aa\u3044<\/p>\n<\/li>\n<li data-nodeid=\"3334\">\n<p data-nodeid=\"3335\"><em data-nodeid=\"4291\">\u89e3\u6c7a\u7b56\uff1a<\/em>\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u306b\u57fa\u3065\u3044\u3066\u6226\u7565\u7684\u306b\u975e\u6b63\u898f\u5316\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3336\"><strong data-nodeid=\"4295\">\u8ab2\u984c4\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u7121\u8996\u3059\u308b\u3053\u3068<\/strong><\/p>\n<ul data-nodeid=\"3337\">\n<li data-nodeid=\"3338\">\n<p data-nodeid=\"3339\"><em data-nodeid=\"4300\">\u554f\u984c\uff1a<\/em>\u30af\u30e9\u30b9\u56f3\u306f\u826f\u597d\u306b\u898b\u3048\u308b\u304c\u3001\u5b9f\u884c\u6642\u306b\u5931\u6557\u3059\u308b<\/p>\n<\/li>\n<li data-nodeid=\"3340\">\n<p data-nodeid=\"3341\"><em data-nodeid=\"4305\">\u89e3\u6c7a\u7b56\uff1a<\/em>\u5b9f\u88c5\u524d\u306b\u5e38\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3067\u691c\u8a3c\u3059\u308b<\/p>\n<\/li>\n<\/ul>\n<hr data-nodeid=\"3342\"\/>\n<h2 data-nodeid=\"3343\"><strong data-nodeid=\"4309\">6. \u5b66\u3073<\/strong><\/h2>\n<h3 data-nodeid=\"3344\"><strong data-nodeid=\"4313\">6.1 \u6280\u8853\u7684\u6d1e\u5bdf<\/strong><\/h3>\n<ol data-nodeid=\"3345\">\n<li data-nodeid=\"3346\">\n<p data-nodeid=\"3347\"><strong data-nodeid=\"4318\">\u30e2\u30c7\u30ea\u30f3\u30b0\u306f\u53cd\u5fa9\u7684\u3067\u3042\u308b\uff1a<\/strong>\u521d\u671f\u306e\u30af\u30e9\u30b9\u56f3\u306f\u6700\u7d42\u7248\u306b\u5230\u9054\u3059\u308b\u307e\u30677\u56de\u306e\u4fee\u6b63\u3092\u7d4c\u305f\u3002\u5404\u53cd\u5fa9\u3067\u65b0\u305f\u306a\u8981\u4ef6\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f\u308a\u3001\u66d6\u6627\u3055\u304c\u660e\u78ba\u306b\u306a\u3063\u305f\u308a\u3057\u305f\u3002<\/p>\n<\/li>\n<li data-nodeid=\"3348\">\n<p data-nodeid=\"3349\"><strong data-nodeid=\"4323\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u6642\u9593\u3092\u7bc0\u7d04\u3059\u308b\uff1a<\/strong>\u8a2d\u8a08\u6bb5\u968e\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u30013\u3064\u306e\u6f5c\u5728\u7684\u306a\u30d0\u30b0\u304c\u672c\u756a\u74b0\u5883\u306b\u5230\u9054\u3059\u308b\u306e\u3092\u9632\u304e\u3001\u7d0440\u6642\u9593\u306e\u30c7\u30d0\u30c3\u30b0\u6642\u9593\u3092\u7bc0\u7d04\u3067\u304d\u305f\u3002<\/p>\n<\/li>\n<li data-nodeid=\"3350\">\n<p data-nodeid=\"3351\"><strong data-nodeid=\"4328\">ER\u56f3\u306f\u30c1\u30fc\u30e0\u3092\u6a4b\u6e21\u3057\u3059\u308b\uff1a<\/strong>ER\u56f3\u306f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u958b\u767a\u8005\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u8005\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u8005\u306e\u9593\u3067\u5171\u901a\u306e\u8a00\u8a9e\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u8aa4\u89e3\u3092\u7d0460\uff05\u524a\u6e1b\u3057\u305f\u3002<\/p>\n<\/li>\n<li data-nodeid=\"3352\">\n<p data-nodeid=\"3353\"><strong data-nodeid=\"4333\">\u5236\u7d04\u306f\u91cd\u8981\u3067\u3042\u308b\uff1a<\/strong>CHECK\u5236\u7d04\u3068\u9069\u5207\u306a\u5916\u90e8\u30ad\u30fc\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u6bb5\u968e\u3067\u306e\u30c7\u30fc\u30bf\u7834\u640d\u3092\u9632\u304e\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ec\u30d9\u30eb\u306e\u691c\u8a3c\u306e\u4fa1\u5024\u3092\u793a\u3057\u305f\u3002<\/p>\n<\/li>\n<\/ol>\n<h3 data-nodeid=\"3354\"><strong data-nodeid=\"4337\">6.2 \u30d7\u30ed\u30bb\u30b9\u6539\u5584<\/strong><\/h3>\n<ol data-nodeid=\"3355\">\n<li data-nodeid=\"3356\">\n<p data-nodeid=\"3357\"><strong data-nodeid=\"4342\">\u65e9\u671f\u691c\u8a3c\uff1a<\/strong>\u30b3\u30fc\u30c9\u4f5c\u6210\u524d\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u7528\u3044\u305f\u8a2d\u8a08\u306e\u691c\u8a3c\u306b\u3088\u308a\u3001\u518d\u4f5c\u696d\u304c35\uff05\u524a\u6e1b\u3055\u308c\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3358\">\n<p data-nodeid=\"3359\"><strong data-nodeid=\"4347\">\u6587\u66f8\u5316\uff1a<\/strong>\u958b\u767a\u5168\u4f53\u3092\u901a\u3057\u3066\u56f3\u3092\u540c\u671f\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u65b0\u898f\u30e1\u30f3\u30d0\u30fc\u306e\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u975e\u5e38\u306b\u4fa1\u5024\u304c\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3360\">\n<p data-nodeid=\"3361\"><strong data-nodeid=\"4352\">\u30c4\u30fc\u30eb\u9078\u5b9a\uff1a<\/strong>\u56f3\u4f5c\u6210\u306bVisual Paradigm\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u8cab\u6027\u304c\u4fdd\u305f\u308c\u3001\u66f4\u65b0\u3082\u5bb9\u6613\u306b\u306a\u3063\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3362\">\n<p data-nodeid=\"3363\"><strong data-nodeid=\"4357\">\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3068\u306e\u9023\u643a\uff1a<\/strong>\u975e\u6280\u8853\u7684\u306a\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u63d0\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u8981\u4ef6\u53ce\u96c6\u306e\u6b63\u78ba\u6027\u304c\u5411\u4e0a\u3057\u305f<\/p>\n<\/li>\n<\/ol>\n<h3 data-nodeid=\"3364\"><strong data-nodeid=\"4361\">6.3 \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u8003\u616e\u4e8b\u9805<\/strong><\/h3>\n<p data-nodeid=\"3365\">\u30e2\u30c7\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u3044\u304f\u3064\u304b\u306e\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u8981\u4ef6\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f\uff1a<\/p>\n<ol data-nodeid=\"3366\">\n<li data-nodeid=\"3367\">\n<p data-nodeid=\"3368\"><strong data-nodeid=\"4371\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565\uff1a<\/strong>\u6ce8\u6587\u5c65\u6b74\u306e\u52b9\u7387\u7684\u306a\u7167\u4f1a\u306e\u305f\u3081\u306b\u3001(customer_id, order_date) \u4e0a\u306e\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u5fc5\u8981\u6027\u304c\u5224\u660e\u3057\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3369\">\n<p data-nodeid=\"3370\"><strong data-nodeid=\"4378\">\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\uff1a<\/strong>Order\u304a\u3088\u3073Order_Product\u30c6\u30fc\u30d6\u30eb\u306f\u6025\u901f\u306b\u5897\u5927\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u65e5\u4ed8\u5358\u4f4d\u3067\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3059\u3079\u304d\u3067\u3042\u308b\u3068\u8a8d\u8b58\u3055\u308c\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3371\">\n<p data-nodeid=\"3372\"><strong data-nodeid=\"4383\">\u30ad\u30e3\u30c3\u30b7\u30e5\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306b\u3088\u308a\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u9069\u3057\u305f\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u88fd\u54c1\u30c7\u30fc\u30bf\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f<\/p>\n<\/li>\n<li data-nodeid=\"3373\">\n<p data-nodeid=\"3374\"><strong data-nodeid=\"4388\">\u30ea\u30fc\u30c9\u30ec\u30d7\u30ea\u30ab\uff1a<\/strong>ER\u56f3\u306e\u5206\u6790\u306b\u3088\u308a\u3001\u30ea\u30fc\u30c9\u30ec\u30d7\u30ea\u30ab\u306e\u5b9f\u88c5\u306b\u9069\u3057\u305f\u8aad\u307f\u8fbc\u307f\u4e2d\u5fc3\u306e\u30d1\u30bf\u30fc\u30f3\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f<\/p>\n<\/li>\n<\/ol>\n<hr data-nodeid=\"3375\"\/>\n<h2 data-nodeid=\"3376\"><strong data-nodeid=\"4392\">7. \u7d50\u8ad6<\/strong><\/h2>\n<p 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data-nodeid=\"3380\">\n<p data-nodeid=\"3381\"><strong 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data-nodeid=\"4412\">\u691c\u8a3c\u306f\u4e0d\u53ef\u6b20\u3067\u3042\u308b\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306f\u3001\u5b9f\u88c5\u524d\u306b\u8a2d\u8a08\u4e0a\u306e\u6b20\u9665\u3092\u767a\u898b\u3059\u308b\u4e0a\u3067\u975e\u5e38\u306b\u4fa1\u5024\u304c\u3042\u3063\u305f\u3002\u7279\u5b9a\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3068\u305d\u306e\u95a2\u4fc2\u3092\u53ef\u8996\u5316\u3067\u304d\u308b\u80fd\u529b\u306b\u3088\u308a\u3001\u62bd\u8c61\u7684\u306a\u30af\u30e9\u30b9\u56f3\u3060\u3051\u3067\u306f\u898b\u3064\u3051\u306b\u304f\u304b\u3063\u305f\u5883\u754c\u30b1\u30fc\u30b9\u3084\u6f5c\u5728\u7684\u306a\u554f\u984c\u304c\u660e\u3089\u304b\u306b\u306a\u3063\u305f\u3002<\/p>\n<\/li>\n<li data-nodeid=\"3386\">\n<p data-nodeid=\"3387\"><strong data-nodeid=\"4417\">\u62bd\u8c61\u9593\u306e\u4e00\u8cab\u6027\uff1a<\/strong>\u30af\u30e9\u30b9\u56f3\u3068ER\u56f3\u306e\u9593\u306b\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u3053\u3068\u3067\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u304c\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306b\u30b9\u30e0\u30fc\u30ba\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u3092\u78ba\u5b9f\u306b\u3057\u305f\u3002\u3053\u306e\u6574\u5408\u6027\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u306e\u9593\u3067\u3088\u304f\u3042\u308b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30df\u30b9\u30de\u30c3\u30c1\u306e\u554f\u984c\u3092\u56de\u907f\u3067\u304d\u305f\u3002<\/p>\n<\/li>\n<li data-nodeid=\"3388\">\n<p data-nodeid=\"3389\"><strong data-nodeid=\"4422\">\u8a2d\u8a08\u306b\u3088\u308b\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\uff1a<\/strong>\u30e2\u30c7\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565\u304b\u3089\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6a5f\u4f1a\u306b\u81f3\u308b\u307e\u3067\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u8003\u616e\u4e8b\u9805\u304c\u81ea\u7136\u306b\u6d6e\u304b\u3073\u4e0a\u304c\u3063\u305f\u3002\u3053\u308c\u3089\u306e\u61f8\u5ff5\u3092\u30c7\u30d7\u30ed\u30a4\u5f8c\u3067\u306f\u306a\u304f\u8a2d\u8a08\u6bb5\u968e\u3067\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u306f\u9577\u671f\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u6210\u9577\u306e\u57fa\u76e4\u3092\u7bc9\u304f\u3053\u3068\u304c\u3067\u304d\u305f\u3002<\/p>\n<\/li>\n<\/ol>\n<p data-nodeid=\"3390\"><strong data-nodeid=\"4426\">\u4eca\u5f8c\u306e\u5c55\u671b\uff1a<\/strong><\/p>\n<p data-nodeid=\"3391\">\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u304c\u8907\u96d1\u6027\u3092\u5897\u3059\u4e2d\u3067\u3001\u30e2\u30c7\u30ea\u30f3\u30b0\u6280\u6cd5\u306e\u4f53\u7cfb\u7684\u306a\u9069\u7528\u306f\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4e8b\u4f8b\u7814\u7a76\u306f\u3001\u6210\u529f\u3057\u305f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u3068\u306f\u5358\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u4f53\u7cfb\u7684\u306b\u8003\u3048\u3001\u4eee\u5b9a\u3092\u691c\u8a3c\u3057\u3001\u3059\u3079\u3066\u306e\u95a2\u4fc2\u8005\u9593\u3067\u5171\u6709\u3055\u308c\u305f\u7406\u89e3\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p data-nodeid=\"3392\">\u985e\u4f3c\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u7d44\u3080\u958b\u767a\u8005\u306b\u5411\u3051\u3066\u3001\u4ee5\u4e0b\u306e\u70b9\u3092\u63a8\u5968\u3057\u307e\u3059\uff1a<\/p>\n<ul data-nodeid=\"3393\">\n<li data-nodeid=\"3394\">\n<p data-nodeid=\"3395\">\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u57fa\u76e4\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u3001\u30af\u30e9\u30b9\u56f3\u304b\u3089\u59cb\u3081\u308b\u3053\u3068<\/p>\n<\/li>\n<li data-nodeid=\"3396\">\n<p data-nodeid=\"3397\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3092\u7528\u3044\u3066\u5b9f\u7528\u7684\u306a\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068<\/p>\n<\/li>\n<li data-nodeid=\"3398\">\n<p data-nodeid=\"3399\">\u5805\u7262\u306a\u30c7\u30fc\u30bf\u6c38\u7d9a\u5316\u306e\u305f\u3081\u3001ER\u56f3\u306b\u5909\u63db\u3059\u308b\u3053\u3068<\/p>\n<\/li>\n<li data-nodeid=\"3400\">\n<p data-nodeid=\"3401\">\u8981\u4ef6\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u958b\u767a\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u3067\u53cd\u5fa9\u3059\u308b\u3053\u3068<\/p>\n<\/li>\n<li data-nodeid=\"3402\">\n<p data-nodeid=\"3403\">\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3068\u5171\u306b\u9032\u5316\u3059\u308b\u3001\u751f\u304d\u3066\u3044\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u56f3\u3092\u7dad\u6301\u3059\u308b\u3053\u3068<\/p>\n<\/li>\n<\/ul>\n<p data-nodeid=\"3404\">\u3053\u308c\u3089\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u624b\u6cd5\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u30c1\u30fc\u30e0\u306f\u6a5f\u80fd\u6027\u3060\u3051\u3067\u306a\u304f\u3001\u4fdd\u5b88\u6027\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3001\u30d3\u30b8\u30cd\u30b9\u76ee\u6a19\u3068\u306e\u6574\u5408\u6027\u3092\u5099\u3048\u305f\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002e\u30b3\u30de\u30fc\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u4e8b\u4f8b\u7814\u7a76\u306f\u3001\u719f\u616e\u3055\u308c\u305f\u8a2d\u8a08\u306e\u529b\u3068\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u306b\u304a\u3051\u308b\u8996\u899a\u7684\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6301\u7d9a\u7684\u306a\u4fa1\u5024\u3092\u8a3c\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<hr data-nodeid=\"3405\"\/>\n<h2 data-nodeid=\"3406\"><strong data-nodeid=\"4440\">8. \u53c2\u8003\u6587\u732e\u304a\u3088\u3073\u8ffd\u52a0\u8aad\u66f8<\/strong><\/h2>\n<ol data-nodeid=\"3407\">\n<li data-nodeid=\"3408\">\n<p data-nodeid=\"3409\">Object Management Group. (2017). \u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08UML\uff09\u30d0\u30fc\u30b8\u30e7\u30f3 2.5.1<\/p>\n<\/li>\n<li data-nodeid=\"3410\">\n<p data-nodeid=\"3411\">Chen, P. P. (1976). \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u30e2\u30c7\u30eb\u2014\u30c7\u30fc\u30bf\u306e\u7d71\u4e00\u7684\u8996\u70b9\u3078<\/p>\n<\/li>\n<li data-nodeid=\"3412\">\n<p data-nodeid=\"3413\">Gamma, E. \u4ed6. (1994). \u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\uff1a\u518d\u5229\u7528\u53ef\u80fd\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u8981\u7d20<\/p>\n<\/li>\n<li data-nodeid=\"3414\">\n<p data-nodeid=\"3415\">Fowler, M. (2003). UML\u3092\u5b66\u3076\uff1a\u6a19\u6e96\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\u306e\u7c21\u6f54\u306a\u30ac\u30a4\u30c9<\/p>\n<\/li>\n<li data-nodeid=\"3416\">\n<p data-nodeid=\"3417\">Visual Paradigm Community Circle. (2023). \u56f3\u5f0f\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u30ac\u30a4\u30c9<\/p>\n<\/li>\n<\/ol>\n<hr data-nodeid=\"3420\"\/>\n<p class=\"\" data-nodeid=\"3421\"><em data-nodeid=\"4478\">\u3053\u306e\u4e8b\u4f8b\u7814\u7a76\u306f\u3001\u30b3\u30f3\u30bb\u30d7\u30c8\u304b\u3089\u30b3\u30fc\u30c9\u3078\u306e\u9053\u306e\u308a\u304c\u76f4\u7dda\u7684\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u62bd\u8c61\u30ec\u30d9\u30eb\u3092\u7d4c\u305f\u719f\u616e\u3055\u308c\u305f\u9032\u5c55\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30af\u30e9\u30b9\u56f3\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3001ER\u56f3\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3067\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u8005\u306f\u81ea\u4fe1\u3001\u660e\u78ba\u3055\u3001\u6b63\u78ba\u3055\u3092\u6301\u3063\u3066\u3053\u306e\u9053\u3092\u9032\u3080\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3092\u5f97\u307e\u3059\u3002<br \/>\n<\/em><\/p>\n<h3 data-nodeid=\"3421\"><em data-nodeid=\"4478\"><br \/>\n\u53c2\u8003\u6587\u732e<br \/>\n<\/em><\/h3>\n<ol>\n<li><a data-nodeid=\"5426\" href=\"https:\/\/www.visual-paradigm.com\/guide\/mastering-structural-modeling-a-complete-guide-to-class-diagrams-object-diagrams-and-er-diagrams-in-software-design\/\"><strong data-nodeid=\"5427\">\u69cb\u9020\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u7fd2\u5f97\uff1a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u306b\u304a\u3051\u308b\u30af\u30e9\u30b9\u56f3\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3001ER\u56f3\u306e\u5b8c\u5168\u30ac\u30a4\u30c9<\/strong><\/a>\uff1a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u304a\u3088\u3073\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6587\u8108\u306b\u304a\u3044\u3066\u3001\u30af\u30e9\u30b9\u56f3\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\uff08ER\uff09\u56f3\u306e\u9055\u3044\u3068\u95a2\u4fc2\u3092\u8a73\u7d30\u306b\u8aac\u660e\u3059\u308b\u30ac\u30a4\u30c9\u3002<\/li>\n<li><a data-nodeid=\"5433\" href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/\"><strong data-nodeid=\"5434\">Visual Paradigm \u30ae\u30e3\u30e9\u30ea\u30fc<\/strong><\/a>\uff1aVisual Paradigm\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3057\u3066\u4f5c\u6210\u3055\u308c\u305f\u3055\u307e\u3056\u307e\u306a\u56f3\u306e\u4f8b\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3001\u5229\u7528\u4e8b\u4f8b\u3092\u7d39\u4ecb\u3059\u308b\u30aa\u30f3\u30e9\u30a4\u30f3\u30ae\u30e3\u30e9\u30ea\u30fc\u3067\u3001\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5440\" href=\"https:\/\/www.visual-paradigm.com\/tutorials\/generatecdfromerd.jsp\"><strong data-nodeid=\"5441\">ER\u56f3\u304b\u3089\u30af\u30e9\u30b9\u56f3\u306e\u751f\u6210<\/strong><\/a>\uff1a\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u305f\u3081\u306b\u3001ER\u56f3\u304b\u3089\u76f4\u63a5UML\u30af\u30e9\u30b9\u56f3\u3092\u9006\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u307e\u305f\u306f\u751f\u6210\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3002<\/li>\n<li><a data-nodeid=\"5447\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85446_synchronizin.html\"><strong data-nodeid=\"5448\">Visual Paradigm\u306b\u304a\u3051\u308b\u30e2\u30c7\u30eb\u306e\u540c\u671f<\/strong><\/a>\uff1aVisual Paradigm\u74b0\u5883\u5185\u3067\u306e\u7570\u306a\u308b\u56f3\u30bf\u30a4\u30d7\uff08ER\u56f3\u3084\u30af\u30e9\u30b9\u56f3\u306a\u3069\uff09\u9593\u306e\u5909\u66f4\u3092\u4e00\u8cab\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u540c\u671f\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\u6587\u66f8\u3002<\/li>\n<li><a data-nodeid=\"5454\" href=\"https:\/\/www.visual-paradigm.com\/VPGallery\/orm\/ERDiagramAndClassDiagramSynchronization.html\"><strong data-nodeid=\"5455\">ER\u56f3\u3068\u30af\u30e9\u30b9\u56f3\u306e\u540c\u671f<\/strong><\/a>\uff1a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u3068UML\u30af\u30e9\u30b9\u56f3\u9593\u306e\u540c\u671f\u6a5f\u80fd\u306b\u7126\u70b9\u3092\u5f53\u3066\u305f\u7279\u5b9a\u306e\u30ac\u30a4\u30c9\u307e\u305f\u306f\u30ae\u30e3\u30e9\u30ea\u30fc\u9805\u76ee\u3067\u3001\u4e00\u65b9\u306e\u30e2\u30c7\u30eb\u306e\u66f4\u65b0\u304c\u4ed6\u65b9\u306b\u3069\u306e\u3088\u3046\u306b\u4f1d\u642c\u3055\u308c\u308b\u304b\u3092\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5461\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\"><strong data-nodeid=\"5462\">UML\u30af\u30e9\u30b9\u56f3\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/strong><\/a>\uff1a\u30af\u30e9\u30b9\u3001\u5c5e\u6027\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u304a\u3088\u3073\u95a2\u9023\u3001\u7d99\u627f\u3001\u5408\u6210\u306a\u3069\u306e\u95a2\u4fc2\u3092\u542b\u3080\u3001UML\u30af\u30e9\u30b9\u56f3\u306e\u4f5c\u6210\u3068\u7406\u89e3\u306b\u95a2\u3059\u308b\u5305\u62ec\u7684\u306a\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3002<\/li>\n<li><a data-nodeid=\"5468\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2576_classdiagram.html\"><strong data-nodeid=\"5469\">\u30af\u30e9\u30b9\u56f3\u306e\u6982\u8981\uff08\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\uff09<\/strong><\/a>: Visual Paradigm\u306b\u304a\u3051\u308b\u30af\u30e9\u30b9\u56f3\u6a5f\u80fd\u306e\u6982\u8981\u3092\u8aac\u660e\u3059\u308b\u516c\u5f0f\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\u6587\u66f8\u3067\u3001\u30af\u30e9\u30b9\u3084\u305d\u306e\u30b9\u30bfereotype\u306e\u63cf\u753b\u3001\u7de8\u96c6\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5\u3092\u542b\u3093\u3067\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5475\" href=\"https:\/\/forums.visual-paradigm.com\/t\/class-diagram-vs-entity-relationship-diagram\/10409\"><strong data-nodeid=\"5476\">\u30af\u30e9\u30b9\u56f3 vs. \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08\u30d5\u30a9\u30fc\u30e9\u30e0\u8a0e\u8ad6\uff09<\/strong><\/a>: UML\u30af\u30e9\u30b9\u56f3\u3068ER\u56f3\u306e\u4f7f\u7528\u4e8b\u4f8b\u3001\u5f37\u307f\u3001\u9055\u3044\u3092\u6bd4\u8f03\u3059\u308b\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30d5\u30a9\u30fc\u30e9\u30e0\u306e\u8b70\u8ad6\u3067\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u6d1e\u5bdf\u3068\u958b\u767a\u8005\u306e\u8996\u70b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5482\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85445_mappingdatam.html\"><strong data-nodeid=\"5483\">\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092UML\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\uff08\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\uff09<\/strong><\/a>: \u95a2\u4fc2\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092UML\u30af\u30e9\u30b9\u56f3\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u8a73\u8ff0\u3057\u305f\u6587\u66f8\u3067\u3001\u5909\u63db\u4e2d\u306b\u4e3b\u30ad\u30fc\u3001\u5916\u90e8\u30ad\u30fc\u3001\u30c7\u30fc\u30bf\u578b\u3092\u3069\u3046\u6271\u3046\u304b\u3092\u542b\u3093\u3067\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5489\" href=\"https:\/\/guides.visual-paradigm.com\/introduction-to-data-modeling-with-visual-paradigm-erd-diagramming-code-generation-and-reverse-engineering\/\"><strong data-nodeid=\"5490\">Visual Paradigm\u306b\u3088\u308b\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u5165\u9580\uff1aER\u56f3\u4f5c\u6210\u3001\u30b3\u30fc\u30c9\u751f\u6210\u3001\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u9006\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/strong><\/a>: Visual Paradigm\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u6280\u6cd5\u3092\u7d39\u4ecb\u3059\u308b\u30ac\u30a4\u30c9\u3067\u3001ER\u56f3\u306e\u4f5c\u6210\u3001\u30e2\u30c7\u30eb\u304b\u3089SQL\u30b3\u30fc\u30c9\u306e\u751f\u6210\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u56f3\u306b\u9006\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3059\u308b\u65b9\u6cd5\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5496\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-object-diagram\/\"><strong data-nodeid=\"5497\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u3068\u306f\u4f55\u304b\uff1f<\/strong><\/a>: UML\u306b\u304a\u3051\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u56f3\u306e\u5b9a\u7fa9\u3092\u8aac\u660e\u3059\u308b\u8a18\u4e8b\u3067\u3001\u7279\u5b9a\u306e\u6642\u70b9\u3067\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u793a\u3059\u76ee\u7684\u3068\u3001\u30af\u30e9\u30b9\u56f3\u3068\u306e\u9055\u3044\u3092\u8a73\u8ff0\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5503\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85378_conceptual,l.html\"><strong data-nodeid=\"5504\">\u30b3\u30f3\u30bb\u30d7\u30c1\u30e5\u30a2\u30eb\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\uff08\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\uff09<\/strong><\/a>: \u30b3\u30f3\u30bb\u30d7\u30c1\u30e5\u30a2\u30eb\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6982\u5ff5\u3092\u8aac\u660e\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\u306e\u5185\u5bb9\u3067\u3001\u8a73\u7d30\u306a\u5b9f\u88c5\u306e\u524d\u306b\u9ad8\u30ec\u30d9\u30eb\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5510\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85375_drawingentit.html\"><strong data-nodeid=\"5511\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u306e\u63cf\u753b\uff08\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\uff09<\/strong><\/a>: Visual Paradigm\u3067\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\uff08ER\uff09\u56f3\u3092\u63cf\u304f\u305f\u3081\u306e\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u624b\u9806\u3067\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u7dda\u306e\u8ffd\u52a0\u3092\u542b\u307f\u307e\u3059\u3002<\/li>\n<li><a data-nodeid=\"5517\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3584\/85402_benefitsofde.html\"><strong data-nodeid=\"5518\">\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u5229\u70b9\uff08\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9\uff09<\/strong><\/a>: \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u521d\u671f\u6bb5\u968e\u3067\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u306e\u5229\u70b9\u3068\u52b9\u679c\u3092\u6982\u8aac\u3057\u305f\u6587\u66f8\u3067\u3001\u660e\u78ba\u6027\u306e\u5411\u4e0a\u3084\u30a8\u30e9\u30fc\u306e\u524a\u6e1b\u3092\u542b\u307f\u307e\u3059\u3002<\/li>\n<li><em data-nodeid=\"4478\">\u00a0<\/em><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u5e8f\u8ad6 \u4eca\u65e5\u306e\u6025\u901f\u306b\u5909\u5316\u3059\u308b\u30c7\u30b8\u30bf\u30eb\u74b0\u5883\u306b<\/p>\n","protected":false},"author":3482,"featured_media":11073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/www.archimetric.com\/wp-content\/uploads\/2026\/06\/img_6a1fc6ce69c29.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-11072","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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