{"id":1762,"date":"2026-03-25T04:25:39","date_gmt":"2026-03-25T04:25:39","guid":{"rendered":"https:\/\/www.go-diagram.com\/ja\/quick-start-guide-reading-entity-relationship-diagrams\/"},"modified":"2026-03-25T04:25:39","modified_gmt":"2026-03-25T04:25:39","slug":"quick-start-guide-reading-entity-relationship-diagrams","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/ja\/quick-start-guide-reading-entity-relationship-diagrams\/","title":{"rendered":"ERD\u30ac\u30a4\u30c9\uff1a\u30af\u30a4\u30c3\u30af\u30b9\u30bf\u30fc\u30c8\u30ac\u30a4\u30c9\uff1a\u65e2\u5b58\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u306e\u8aad\u307f\u65b9\u3068\u89e3\u91c8\u65b9\u6cd5"},"content":{"rendered":"<p>\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u5805\u7262\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u4e0a\u3067\u57fa\u672c\u3067\u3059\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u306a\u3044\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306b\u906d\u9047\u3057\u305f\u5834\u5408\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u304c\u4fe1\u983c\u3067\u304d\u308b\u60c5\u5831\u6e90\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u56f3\u3092\u89e3\u91c8\u3059\u308b\u305f\u3081\u306e\u69cb\u9020\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u3001\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092\u660e\u78ba\u304b\u3064\u6b63\u78ba\u306b\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u4e3b\u8981\u306a\u8a18\u53f7\u3001\u95a2\u4fc2\u306e\u7a2e\u985e\u3001\u304a\u3088\u3073\u3069\u306e\u30b9\u30ad\u30fc\u30de\u3082\u52b9\u679c\u7684\u306b\u89e3\u8aad\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u5206\u6790\u30b9\u30c6\u30c3\u30d7\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Chibi-style infographic guide for reading Entity-Relationship Diagrams featuring cute characters illustrating core components (entities, attributes, relationships), notation comparison (Crow's Foot vs Chen), cardinality types (1:1, 1:N, M:N), modality symbols (optional\/mandatory), and a 4-step analysis process for interpreting database schemas\" decoding=\"async\" src=\"https:\/\/www.go-diagram.com\/wp-content\/uploads\/2026\/03\/chibi-erd-quick-start-guide-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>ERD\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306a\u7406\u7531 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\ud83c\udfd7\ufe0f<\/h2>\n<p>\u8907\u96d1\u306a\u69cb\u9020\u3092\u5206\u6790\u3059\u308b\u524d\u306b\u3001\u69cb\u6210\u8981\u7d20\u3092\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u3059\u3079\u3066\u306eERD\u306f3\u3064\u306e\u4e3b\u8981\u306a\u8981\u7d20\u304b\u3089\u69cb\u6210\u3055\u308c\u308b\u3002\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u5373\u5ea7\u306b\u8a8d\u8b58\u3067\u304d\u308c\u3070\u3001\u56f3\u3092\u6271\u3044\u3084\u3059\u3044\u90e8\u5206\u306b\u5206\u5272\u3067\u304d\u308b\u3002<\/p>\n<h3>1. \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 \ud83c\udff7\ufe0f<\/h3>\n<p>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u660e\u78ba\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u305f\u306f\u6982\u5ff5\u3092\u8868\u3059\u3002\u95a2\u4fc2\u578b\u306e\u6587\u8108\u3067\u306f\u3001\u901a\u5e38\u306f\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u5fdc\u3059\u308b\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u4e00\u822c\u7684\u306b\u9577\u65b9\u5f62\u3067\u63cf\u304b\u308c\u308b\u3002<\/p>\n<ul>\n<li><strong>\u4f8b\uff1a<\/strong>\u9867\u5ba2\u3001\u88fd\u54c1\u3001\u6ce8\u6587\u3001\u5f93\u696d\u54e1\u3002<\/li>\n<li><strong>\u8996\u899a\u7684\u30b5\u30a4\u30f3\uff1a<\/strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u540d\u3092\u542b\u3080\u30dc\u30c3\u30af\u30b9\u3002<\/li>\n<li><strong>\u30ad\u30fc\u8b58\u5225\u5b50\uff1a<\/strong>\u5404\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u306f\u3001\u4e00\u610f\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306e\u4e3b\u30ad\u30fc\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<\/li>\n<\/ul>\n<h3>2. \u5c5e\u6027 \ud83d\udcdd<\/h3>\n<p>\u5c5e\u6027\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u8a18\u8ff0\u3059\u308b\u5177\u4f53\u7684\u306a\u30c7\u30fc\u30bf\u30dd\u30a4\u30f3\u30c8\u3092\u6307\u3059\u3002\u3053\u308c\u3089\u306f\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u5217\u3092\u5b9a\u7fa9\u3059\u308b\u3002\u4e00\u90e8\u306e\u8868\u8a18\u6cd5\u3067\u306f\u5c5e\u6027\u3092\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30dc\u30c3\u30af\u30b9\u5185\u306b\u914d\u7f6e\u3059\u308b\u304c\u3001\u4ed6\u306e\u8868\u8a18\u6cd5\u3067\u306f\u7dda\u3067\u63a5\u7d9a\u3059\u308b\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u30ad\u30fc\uff1a<\/strong>\u901a\u5e38\u306f\u4e0b\u7dda\u304c\u5f15\u304b\u308c\u3066\u304a\u308a\u3001\u30ec\u30b3\u30fc\u30c9\u3092\u4e00\u610f\u306b\u8b58\u5225\u3059\u308b\u3002<\/li>\n<li><strong>\u5916\u90e8\u30ad\u30fc\uff1a<\/strong>\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u4e3b\u30ad\u30fc\u306b\u30ea\u30f3\u30af\u3059\u308b\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u578b\uff1a<\/strong>\u6587\u8108\u306b\u3088\u3063\u3066\u6697\u9ed9\u7684\u306b\u5b9a\u7fa9\u3055\u308c\u308b\uff08\u4f8b\uff1a\u65e5\u4ed8\u3001\u6574\u6570\u3001\u6587\u5b57\u5217\uff09\u3002<\/li>\n<\/ul>\n<h3>3. \u95a2\u4fc2 \ud83d\udd17<\/h3>\n<p>\u95a2\u4fc2\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30ec\u30b3\u30fc\u30c9\u9593\u306e\u5236\u7d04\u3084\u4f9d\u5b58\u95a2\u4fc2\u3092\u793a\u3057\u307e\u3059\u3002\u56f3\u3067\u306f\u3001\u901a\u5e38\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3076\u7dda\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u65b9\u5411\uff1a<\/strong>\u3069\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u63a5\u7d9a\u3092\u958b\u59cb\u3059\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u5236\u7d04\uff1a<\/strong>\u95a2\u4fc2\u304c\u5fc5\u9808\u304b\u30aa\u30d7\u30b7\u30e7\u30f3\u304b\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u57fa\u6570\uff1a<\/strong>\u63a5\u7d9a\u306e\u6570\u5024\u5236\u9650\u3092\u5b9a\u7fa9\u3057\u307e\u3059\uff08\u4f8b\uff1a1\u5bfe\u591a\uff09\u3002<\/li>\n<\/ul>\n<h2>\u6a19\u6e96\u8a18\u6cd5\u306e\u89e3\u8aad \ud83d\udd0d<\/h2>\n<p>\u7570\u306a\u308b\u30c1\u30fc\u30e0\u3084\u30c4\u30fc\u30eb\u306f\u3001\u540c\u3058\u6982\u5ff5\u3092\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u3055\u307e\u3056\u307e\u306a\u30b9\u30bf\u30a4\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306a2\u3064\u306e\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u3068\u30c1\u30a7\u30f3\u8a18\u6cd5\u3067\u3059\u3002\u30b9\u30bf\u30a4\u30eb\u3092\u8a8d\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u7dda\u306e\u610f\u5473\u3092\u6b63\u3057\u304f\u89e3\u91c8\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u8a18\u6cd5\u30b9\u30bf\u30a4\u30eb\u306e\u6bd4\u8f03<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5fb4<\/th>\n<th>\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5<\/th>\n<th>\u30c1\u30a7\u30f3\u8a18\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/strong><\/td>\n<td>\u9577\u65b9\u5f62<\/td>\n<td>\u9577\u65b9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u95a2\u4fc2<\/strong><\/td>\n<td>\u8a18\u53f7\u4ed8\u304d\u306e\u7dda\u3067\u63a5\u7d9a<\/td>\n<td>\u7dda\u3092\u7d50\u3076\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9<\/td>\n<\/tr>\n<tr>\n<td><strong>\u57fa\u6570<\/strong><\/td>\n<td>\u7279\u5b9a\u306e\u7d42\u7aef\u3092\u6301\u3064\u7dda\uff08\u4f8b\uff1a\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\uff09<\/td>\n<td>\u7dda\u306b\u914d\u7f6e\u3055\u308c\u305f\u6570\u5b57<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8907\u96d1\u3055<\/strong><\/td>\n<td>\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u3001\u73fe\u4ee3\u306e\u30c4\u30fc\u30eb\u3067\u4eba\u6c17<\/td>\n<td>\u660e\u78ba\u3067\u3001\u5b66\u8853\u7684\u306a\u6587\u8108\u3067\u3088\u304f\u4f7f\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u56f3\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306f\u3001\u51e1\u4f8b\u3092\u78ba\u8a8d\u3059\u308b\u304b\u3001\u7dda\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u578b\u306e\u5f62\u72b6\u304c\u898b\u3048\u308b\u5834\u5408\u306f\u3001\u30c1\u30a7\u30f3\u8a18\u6cd5\u3067\u3059\u3002\u7dda\u306e\u7d42\u7aef\u304c\u4e09\u672c\u306e\u7a81\u8d77\u3092\u6301\u3064\u5834\u5408\u306f\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u3067\u3059\u3002\u4e21\u8005\u306f\u540c\u3058\u8ad6\u7406\u3092\u4f1d\u3048\u307e\u3059\u304c\u3001\u7570\u306a\u308b\u8996\u899a\u7684\u30e1\u30bf\u30d5\u30a1\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u57fa\u6570\u3068\u30e2\u30c0\u30ea\u30c6\u30a3\u306e\u7406\u89e3 \ud83d\udd04<\/h2>\n<p>\u57fa\u6570\u306fERD\u306b\u304a\u3044\u3066\u6700\u3082\u91cd\u8981\u306a\u5074\u9762\u3067\u3059\u3002\u30c7\u30fc\u30bf\u91cf\u306b\u95a2\u3059\u308b\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u8aa4\u89e3\u3059\u308b\u3068\u3001\u4e0d\u5b8c\u5168\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u306e\u30a8\u30e9\u30fc\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n<h3>\u4e00\u822c\u7684\u306a\u57fa\u6570\u306e\u7a2e\u985e<\/h3>\n<ul>\n<li><strong>\u4e00\u5bfe\u4e00 (1:1):<\/strong>\u30c6\u30fc\u30d6\u30ebA\u306e\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c6\u30fc\u30d6\u30ebB\u306e\u6b63\u78ba\u306b1\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u306b\u30ea\u30f3\u30af\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u4e00\u5bfe\u591a (1:N):<\/strong>\u30c6\u30fc\u30d6\u30ebA\u306e\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c6\u30fc\u30d6\u30ebB\u306e\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u306b\u30ea\u30f3\u30af\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u591a\u5bfe\u591a (M:N):<\/strong>\u30c6\u30fc\u30d6\u30ebA\u306e\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c6\u30fc\u30d6\u30ebB\u306e\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u306b\u30ea\u30f3\u30af\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u9006\u3082\u307e\u305f\u540c\u69d8\u3067\u3059\u3002\u901a\u5e38\u3001\u3053\u306e\u95a2\u4fc2\u306b\u306f\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30e2\u30c0\u30ea\u30c6\u30a3\uff08\u9078\u629e\u7684\uff09<\/h3>\n<p>\u30e2\u30c0\u30ea\u30c6\u30a3\u306f\u3001\u95a2\u4fc2\u304c\u5fc5\u9808\u304b\u9078\u629e\u7684\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3076\u7dda\u306b\u5782\u76f4\u68d2\uff08|\uff09\u307e\u305f\u306f\u5186\uff08o\uff09\u3067\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8a18\u53f7<\/th>\n<th>\u610f\u5473<\/th>\n<th>\u4f8b\u306e\u30b7\u30ca\u30ea\u30aa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5186\uff08o\uff09<\/td>\n<td>\u9078\u629e\u7684<\/td>\n<td>\u30e6\u30fc\u30b6\u30fc\u306f<em>\u304a\u305d\u3089\u304f<\/em>\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u753b\u50cf\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\n<\/td>\n<\/tr>\n<tr>\n<td>\u68d2\uff08|\uff09<\/td>\n<td>\u5fc5\u9808<\/td>\n<li>\u6ce8\u6587\u306f<em>\u5fc5\u305a<\/em>\u9867\u5ba2\u3092\u6301\u3063\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u5206\u6790\u30d7\u30ed\u30bb\u30b9 \ud83d\udcdd<\/h2>\n<p>\u8907\u96d1\u306a\u56f3\u3092\u5206\u6790\u3059\u308b\u969b\u306f\u3001\u5727\u5012\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u5fc5\u8981\u306a\u8a73\u7d30\u3092\u9003\u3055\u305a\u3001\u91cd\u8981\u306a\u5236\u7d04\u3092\u6f0f\u308c\u306a\u304f\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u4f53\u7cfb\u7684\u306a\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d71\uff1a\u30eb\u30fc\u30c8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7279\u5b9a\u3059\u308b \ud83c\udf33<\/h3>\n<p>\u4e2d\u5fc3\u7684\u306a\u30a2\u30af\u30bf\u30fc\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u3089\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u4e3b\u8981\u306a\u4e3b\u984c\u3067\u3059\u3002\u6700\u3082\u591a\u304f\u306e\u63a5\u7d9a\u3092\u6301\u3064\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u63a2\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\u4e3b\u8981\u306a\u30d3\u30b8\u30cd\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li>\u305d\u306e\u4e3b\u30ad\u30fc\u3092\u30e1\u30e2\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30c7\u30fc\u30bf\u306e\u771f\u5b9f\u306e\u51fa\u6240\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d72\uff1a\u63a5\u7d9a\u3092\u305f\u3069\u308b \ud83d\udd0d<\/h3>\n<p>1\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304b\u3089\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3078\u3068\u7dda\u3092\u8ffd\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u98db\u3073\u8df3\u306d\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u30021\u3064\u306e\u7d4c\u8def\u3092\u5b8c\u5168\u306b\u305f\u3069\u308a\u7d42\u3048\u3066\u304b\u3089\u3001\u6b21\u306e\u7d4c\u8def\u306b\u79fb\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\u95a2\u4fc2\u7dda\u306e\u30e9\u30d9\u30eb\u3092\u8aad\u307f\u307e\u3057\u3087\u3046\u3002<\/li>\n<li>\u4e21\u7aef\u306e\u57fa\u6570\u30de\u30fc\u30ab\u30fc\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u5916\u90e8\u30ad\u30fc\u304c\u660e\u793a\u7684\u306b\u540d\u524d\u4ed8\u3051\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d73\uff1a\u5c5e\u6027\u5236\u7d04\u3092\u78ba\u8a8d\u3059\u308b \u2696\ufe0f<\/h3>\n<p>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30dc\u30c3\u30af\u30b9\u306e\u4e2d\u3092\u78ba\u8a8d\u3057\u3001\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u30eb\u30fc\u30eb\u3092\u63a2\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\u975e\u30ad\u30fc\u5217\u306b\u4e00\u610f\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/li>\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<li>\u8907\u5408\u30ad\u30fc\uff08\u8907\u6570\u306e\u5217\u304c1\u3064\u306e\u30ad\u30fc\u3092\u5f62\u6210\u3059\u308b\uff09\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d74\uff1a\u6574\u5408\u6027\u30eb\u30fc\u30eb\u3092\u691c\u8a3c\u3059\u308b \u2705<\/h3>\n<p>\u56f3\u304c\u8ad6\u7406\u7684\u306a\u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u3068\u6574\u5408\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\u5b50\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u5b58\u5728\u306e\u305f\u3081\u306b\u89aa\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<li>\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u5faa\u74b0\u4f9d\u5b58\u95a2\u4fc2\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/li>\n<li>\u30c7\u30fc\u30bf\u6b63\u898f\u5316\u30ec\u30d9\u30eb\u306f\u9069\u5207\u3067\u3059\u304b\uff08\u4f8b\uff1a3NF\uff09\uff1f<\/li>\n<\/ul>\n<h2>\u4e00\u822c\u7684\u306a\u95a2\u4fc2\u30d1\u30bf\u30fc\u30f3 \ud83c\udfdb\ufe0f<\/h2>\n<p>\u7279\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u696d\u754c\u3067\u983b\u7e41\u306b\u51fa\u73fe\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3092\u8a8d\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u89e3\u91c8\u6642\u9593\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>1. \u30cf\u30a4\u30a8\u30e9\u30eb\u30ad\u30ab\u30eb\u30d1\u30bf\u30fc\u30f3<\/h3>\n<p>\u3053\u306e\u69cb\u9020\u306f\u6728\u306b\u4f3c\u3066\u3044\u307e\u3059\u30021\u3064\u306e\u89aa\u304c\u591a\u6570\u306e\u5b50\u306b\u63a5\u7d9a\u3057\u3001\u5b50\u306f\u305d\u308c\u305e\u308c\u81ea\u5206\u306e\u5b50\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u7d44\u7e54\u56f3\u3084\u30ab\u30c6\u30b4\u30ea\u30c4\u30ea\u30fc\u3067\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u69cb\u9020\uff1a<\/strong> \u89aa \u2192 \u5b50 \u2192 \u5b6b\u3002<\/li>\n<li><strong> \u5b9f\u88c5\uff1a<\/strong>\u540c\u3058\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u81ea\u5df1\u53c2\u7167\u5916\u90e8\u30ad\u30fc\u3002<\/li>\n<li><strong> \u8b66\u544a\uff1a<\/strong>\u6df1\u3044\u30cd\u30b9\u30c8\u306f\u30af\u30a8\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>2. \u30b9\u30bf\u30fc\u30b7\u30b9\u30c6\u30e0\u30d1\u30bf\u30fc\u30f3<\/h3>\n<p>\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4e2d\u592e\u306e\u30d5\u30a1\u30af\u30c8\u30c6\u30fc\u30d6\u30eb\u304c\u8907\u6570\u306e\u30c7\u30a3\u30e1\u30f3\u30b7\u30e7\u30f3\u30c6\u30fc\u30d6\u30eb\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u69cb\u9020\uff1a<\/strong>1\u3064\u306e\u4e2d\u5fc3\u90e8\u3001\u591a\u6570\u306e\u30b9\u30dd\u30fc\u30af\u3002<\/li>\n<li><strong>\u7528\u9014\uff1a<\/strong>\u96c6\u8a08\u304a\u3088\u3073\u30ec\u30dd\u30fc\u30c8\u306e\u30b7\u30ca\u30ea\u30aa\u3002<\/li>\n<li><strong>\u5229\u70b9\uff1a<\/strong> \u5206\u6790\u7528\u306e\u8907\u96d1\u306a\u30af\u30a8\u30ea\u3092\u7c21\u7d20\u5316\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>3. \u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u30d1\u30bf\u30fc\u30f3<\/h3>\n<p>\u591a\u5bfe\u591a\u95a2\u4fc2\u306b\u5fc5\u9808\u3067\u3059\u30022\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u4e2d\u9593\u30c6\u30fc\u30d6\u30eb\u306a\u3057\u3067\u306f\u76f4\u63a5\u30ea\u30f3\u30af\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li><strong>\u69cb\u9020\uff1a<\/strong> \u30c6\u30fc\u30d6\u30ebA \u2194 \u7d50\u5408\u30c6\u30fc\u30d6\u30eb \u2194 \u30c6\u30fc\u30d6\u30ebB\u3002<\/li>\n<li><strong>\u6a5f\u80fd\uff1a<\/strong> \u4e21\u5074\u304b\u3089\u306e\u5916\u90e8\u30ad\u30fc\u3068\u30ea\u30f3\u30af\u306e\u7279\u5b9a\u5c5e\u6027\u3092\u683c\u7d0d\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u4f8b\uff1a<\/strong> \u5b66\u751f\u3068\u6388\u696d\uff081\u4eba\u306e\u5b66\u751f\u304c\u8907\u6570\u306e\u6388\u696d\u3092\u53d7\u8b1b\u3059\u308b\uff1b1\u3064\u306e\u6388\u696d\u306b\u8907\u6570\u306e\u5b66\u751f\u304c\u767b\u9332\u3055\u308c\u308b\uff09\u3002<\/li>\n<\/ul>\n<h2>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u4f5c\u6210\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 \ud83d\udcda<\/h2>\n<p>\u56f3\u306f\u3001\u305d\u308c\u306b\u4ed8\u968f\u3059\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u54c1\u8cea\u306b\u5339\u6575\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u65e2\u5b58\u306eERD\u306b\u906d\u9047\u3057\u305f\u969b\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u6e96\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u4e00\u8cab\u3057\u305f\u547d\u540d\u898f\u5247\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u306f\u5358\u6570\u540d\u8a5e\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\uff08\u4f8b\uff1a<em>User<\/em> \u3067\u306f\u306a\u304f <em>Users<\/em>\uff09\u3002\u30ab\u30e9\u30e0\u306b\u306fcamelCase\u307e\u305f\u306fsnake_case\u3092\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u660e\u78ba\u306a\u51e1\u4f8b\uff1a<\/strong> \u6a19\u8a18\u6cd5\u304c\u6a19\u6e96\u3067\u306a\u3044\u5834\u5408\u306f\u3001\u8a18\u53f7\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong> \u56f3\u306f\u5909\u5316\u3057\u307e\u3059\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u73fe\u5728\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u72b6\u614b\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u30e1\u30bf\u30c7\u30fc\u30bf\uff1a<\/strong> \u56f3\u81ea\u4f53\u306b\u4f5c\u6210\u8005\u540d\u3068\u66f4\u65b0\u65e5\u3092\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u8ad6\u7406\u7684 vs. \u7269\u7406\u7684\uff1a<\/strong> \u6982\u5ff5\u8a2d\u8a08\uff08\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\uff09\u3068\u7269\u7406\u8a2d\u8a08\uff08\u30c7\u30fc\u30bf\u578b\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff09\u3092\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h2>\u66d6\u6627\u3055\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 \ud83d\udd27<\/h2>\n<p>\u3059\u3079\u3066\u306e\u56f3\u304c\u5b8c\u74a7\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u66d6\u6627\u306a\u8a18\u53f7\u3084\u60c5\u5831\u306e\u6b20\u843d\u306b\u906d\u9047\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u3069\u3046\u6271\u3046\u304b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306e\u6b20\u843d<\/h3>\n<p>\u7dda\u306b\u7d42\u7aef\u30de\u30fc\u30af\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u95a2\u4fc2\u6027\u304c\u4e0d\u660e\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63a8\u6e2c\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u958b\u767a\u30c1\u30fc\u30e0\u306b\u78ba\u8a8d\u3059\u308b\u304b\u3001\u30b7\u30b9\u30c6\u30e0\u30c6\u30fc\u30d6\u30eb\u3092\u4ecb\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u76f4\u63a5\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u4e0d\u6574\u5408\u306a\u5916\u90e8\u30ad\u30fc<\/h3>\n<p>\u56f3\u9762\u304c\u95a2\u4fc2\u3092\u793a\u3057\u3066\u3044\u308b\u304c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u304c\u306a\u3044\u5834\u5408\u3001\u56f3\u9762\u306f\u53e4\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u5b9f\u88c5\u4f5c\u696d\u3067\u306f\u3001\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u512a\u5148\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u5b64\u7acb\u3057\u305f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u63a5\u7d9a\u304c\u306a\u3044\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u3001\u975e\u63a8\u5968\u307e\u305f\u306f\u8aa4\u3063\u3066\u30e2\u30c7\u30eb\u5316\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3089\u3092\u3042\u306a\u305f\u306e\u6982\u5ff5\u30e2\u30c7\u30eb\u304b\u3089\u524a\u9664\u3059\u308b\u524d\u306b\u3001\u307e\u3060\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u8abf\u67fb\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u9ad8\u5ea6\u306a\u8003\u616e\u4e8b\u9805 \ud83d\ude80<\/h2>\n<p>\u57fa\u672c\u3092\u7406\u89e3\u3067\u304d\u305f\u3089\u3001\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u89e3\u91c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u306a\u8981\u7d20\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>1. \u7d99\u627f\u3068\u30b9\u30fc\u30d1\u30fc\u578b<\/h3>\n<p>\u4e00\u90e8\u306e\u56f3\u9762\u3067\u306f\u3001\u4e09\u89d2\u5f62\u3084\u7279\u5225\u306a\u7dda\u3092\u4f7f\u3063\u3066\u7d99\u627f\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3042\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u5225\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u7279\u6b8a\u5316\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\uff08\u4f8b\uff1a<em>Vehicle<\/em>\u306f\u3001<em>Car<\/em>\u304a\u3088\u3073<em>Bike<\/em>).<\/p>\n<ul>\n<li><strong>\u5171\u6709\u5c5e\u6027\uff1a<\/strong>\u89aa\u304b\u3089\u7d99\u627f\u3055\u308c\u308b\u3002<\/li>\n<li><strong>\u56fa\u6709\u306e\u5c5e\u6027\uff1a<\/strong>\u5b50\u306b\u56fa\u6709\u306e\u3082\u306e\u3002<\/li>\n<li><strong>\u5b9f\u88c5\uff1a<\/strong>\u901a\u5e38\u3001\u30bf\u30a4\u30d7\u30ab\u30e9\u30e0\u3092\u6301\u3064\u5358\u4e00\u306e\u30c6\u30fc\u30d6\u30eb\u3001\u307e\u305f\u306f\u5171\u6709\u30ad\u30fc\u3092\u6301\u3064\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u3067\u51e6\u7406\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n<h3>2. 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