{"id":6552,"date":"2026-02-05T09:39:46","date_gmt":"2026-02-05T01:39:46","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/class-diagram-vs-entity-relationship-diagram-erd-a-comparative-guide\/"},"modified":"2026-02-05T09:39:46","modified_gmt":"2026-02-05T01:39:46","slug":"class-diagram-vs-entity-relationship-diagram-erd-a-comparative-guide","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/class-diagram-vs-entity-relationship-diagram-erd-a-comparative-guide\/","title":{"rendered":"\u30af\u30e9\u30b9\u56f3\u3068\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\uff1a\u6bd4\u8f03\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/h2>\n

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\u30af\u30e9\u30b9\u56f3<\/strong><\/h2>\n

\u76ee\u7684\uff1a<\/strong><\/h3>\n

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\u8981\u7d20\uff1a<\/strong><\/h3>\n
    \n
  1. \u30af\u30e9\u30b9\uff1a<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u8a08\u56f3\u3092\u8868\u3057\u3001\u305d\u306e\u5c5e\u6027\uff08\u30c7\u30fc\u30bf\u30e1\u30f3\u30d0\uff09\u3068\u30e1\u30bd\u30c3\u30c9\uff08\u95a2\u6570\uff09\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/li>\n
  2. \u95a2\u9023\uff1a<\/strong>\u30af\u30e9\u30b9\u9593\u306e\u95a2\u4fc2\u3092\u8868\u3057\u30011\u5bfe1\u30011\u5bfe\u591a\u3001\u591a\u5bfe\u591a\u306e\u95a2\u9023\u3092\u542b\u307f\u307e\u3059\u3002<\/li>\n
  3. \u7d99\u627f\uff1a<\/strong>\u7d99\u627f\u306e\u968e\u5c64\u3092\u793a\u3057\u3001\u3069\u306e\u30af\u30e9\u30b9\u304c\u4ed6\u306e\u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u3057\u3066\u3044\u308b\u304b\u3092\u8868\u3057\u307e\u3059\u3002<\/li>\n
  4. \u96c6\u7d04\u3068\u5408\u6210\uff1a<\/strong>\u5168\u4f53\u3068\u90e8\u5206\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u8868\u3057\u3001\u305f\u3068\u3048\u3070\u8eca\u3068\u305d\u306e\u30a8\u30f3\u30b8\u30f3\u306e\u3088\u3046\u306a\u95a2\u4fc2\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n
  5. \u5c5e\u6027\u3068\u64cd\u4f5c\uff1a<\/strong>\u30af\u30e9\u30b9\u306e\u7279\u6027\uff08\u5c5e\u6027\uff09\u3068\u632f\u308b\u821e\u3044\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u4f8b\uff1a<\/strong><\/h3>\n

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    <\/p>\n

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    \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09<\/strong><\/h2>\n

    \u76ee\u7684\uff1a<\/strong><\/h3>\n

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    \u8981\u7d20\uff1a<\/strong><\/h3>\n
      \n
    1. \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong> \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u8868\u3057\u3001\u901a\u5e38\u306f\u73fe\u5b9f\u4e16\u754c\u306e\u7269\u4f53\u3084\u6982\u5ff5\u306b\u5bfe\u5fdc\u3059\u308b\u3002<\/li>\n
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    3. \u95a2\u4fc2\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u793a\u3057\u30011\u5bfe1\u30011\u5bfe\u591a\u3001\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u3092\u542b\u3080\u3002<\/li>\n
    4. \u4e3b\u30ad\u30fc\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5404\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4e00\u610f\u306b\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u56fa\u6709\u306e\u5c5e\u6027\u307e\u305f\u306f\u5c5e\u6027\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u8b58\u5225\u3059\u308b\u3002<\/li>\n
    5. \u5916\u90e8\u30ad\u30fc\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u30ea\u30f3\u30af\u3092\u8868\u3057\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u53c2\u7167\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3002<\/li>\n<\/ol>\n

      \u4f8b\uff1a<\/strong><\/h3>\n

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      <\/p>\n

      \u3053\u306eERD\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u3042\u308a\u307e\u3059\u3002\u9867\u5ba2<\/code>, \u6ce8\u6587<\/code>\u3001\u304a\u3088\u3073\u88fd\u54c1<\/code>\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u5c5e\u6027\u3068\u95a2\u4fc2\u3002\u5916\u90e8\u30ad\u30fc\uff08\u9867\u5ba2ID<\/code>, \u88fd\u54c1ID<\/code>\uff09\u306f\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3002<\/p>\n

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      \u30af\u30e9\u30b9\u56f3\u3092\u4f7f\u3046\u3079\u304d\u3068\u304d\uff1a<\/strong><\/h3>\n
        \n
      1. \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\uff1a<\/strong> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u7d44\u3093\u3067\u304a\u308a\u3001\u30af\u30e9\u30b9\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u95a2\u4fc2\u3092\u8868\u73fe\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001\u30af\u30e9\u30b9\u56f3\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n
      2. \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\uff1a<\/strong> \u30af\u30e9\u30b9\u56f3\u306f\u3001\u30af\u30e9\u30b9\u968e\u5c64\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u4f9d\u5b58\u95a2\u4fc2\u3092\u542b\u3080\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u9759\u7684\u69cb\u9020\u3092\u53ef\u8996\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002<\/li>\n
      3. \u5171\u540c\u8a2d\u8a08<\/strong> \u30af\u30e9\u30b9\u56f3\u306f\u3001\u958b\u767a\u8005\u3001\u30c7\u30b6\u30a4\u30ca\u30fc\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306e\u9593\u3067\u306e\u8b70\u8ad6\u3092\u4fc3\u9032\u3059\u308b\u305f\u3081\u306b\u3001\u5171\u540c\u8a2d\u8a08\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u3002<\/li>\n<\/ol>\n

        \u4ee5\u4e0b\u306e\u72b6\u6cc1\u3067\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/strong><\/h3>\n
          \n
        1. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\uff1a<\/strong>\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u8a2d\u8a08\u3059\u308b\u969b\u306f\u3001ERD\u3092\u4f7f\u7528\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u3001\u305d\u306e\u5c5e\u6027\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u9593\u306e\u95a2\u4fc2\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/li>\n
        2. \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\uff1a<\/strong>ERD\u306f\u3001\u30c7\u30fc\u30bf\u8981\u4ef6\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u7406\u89e3\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u306e\u78ba\u4fdd\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u6574\u7406\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/li>\n
        3. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\uff1a<\/strong>ERD\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u8005\u3084\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u8cb4\u91cd\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u306a\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u3068\u5236\u7d04\u3092\u8a18\u8ff0\u3059\u308b\u3002<\/li>\n<\/ol>\n

          \u30af\u30e9\u30b9\u56f3\u3068ERD\u306e\u9055\u3044\u3092\u8981\u7d04\u3059\u308b<\/h2>\n

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          \u5074\u9762<\/th>\n\u30af\u30e9\u30b9\u56f3<\/th>\n\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09<\/th>\n<\/tr>\n<\/thead>\n
          \u76ee\u7684<\/strong><\/td>\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u304a\u3088\u3073\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3051\u308b\u30af\u30e9\u30b9\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u304a\u3088\u3073\u305d\u308c\u3089\u306e\u95a2\u4fc2\u3092\u8868\u3059\u3002<\/td>\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u304a\u3051\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u304a\u3088\u3073\u95a2\u4fc2\u3092\u8868\u3059\u3002<\/td>\n<\/tr>\n
          \u4e3b\u306a\u7528\u9014<\/strong><\/td>\n\u2013 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08<br>- \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30e2\u30c7\u30ea\u30f3\u30b0<\/td>\n\u2013 \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08<br>- \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0<\/td>\n<\/tr>\n
          \u8981\u7d20<\/strong><\/td>\n\u2013 \u30af\u30e9\u30b9<br>- \u5c5e\u6027<br>- \u30e1\u30bd\u30c3\u30c9\uff08\u64cd\u4f5c\uff09<br>- \u95a2\u9023<br>- \u7d99\u627f<br>- \u96c6\u7d04\uff0f\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3<\/td>\n\u2013 \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff08\u30c6\u30fc\u30d6\u30eb\uff09<br>- \u5c5e\u6027\uff08\u5217\uff09<br>- \u95a2\u4fc2<br>- \u4e3b\u30ad\u30fc<br>- \u5916\u90e8\u30ad\u30fc<\/td>\n<\/tr>\n
          \u57fa\u6570<\/strong><\/td>\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u305f\u306f\u30af\u30e9\u30b9\u9593\u306e\u95a2\u9023\u3092\u793a\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u591a\u91cd\u6027\uff08\u4f8b\uff1a1\u5bfe1\u30011\u5bfe\u591a\uff09\u3092\u8868\u73fe\u3067\u304d\u308b\u3002<\/td>\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u793a\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\uff08\u4f8b\uff1a1\u5bfe1\u30011\u5bfe\u591a\uff09\u3002<\/td>\n<\/tr>\n
          \u8868\u8a18\u6cd5<\/strong><\/td>\n\u2013 \u5c5e\u6027\u3068\u30e1\u30bd\u30c3\u30c9\u306e\u30b3\u30f3\u30d1\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5099\u3048\u305f\u30af\u30e9\u30b9<br>- \u77e2\u5370\u3092\u7528\u3044\u305f\u95a2\u9023\u3092\u8868\u3059\u7dda<\/td>\n\u2013 \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u306e\u305f\u3081\u306e\u9577\u65b9\u5f62<br>- \u95a2\u4fc2\u306e\u305f\u3081\u306e\u83f1\u5f62<br>- \u5c5e\u6027\u306e\u305f\u3081\u306e\u6955\u5186<\/td>\n<\/tr>\n
          \u7126\u70b9<\/strong><\/td>\n\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u9759\u7684\u69cb\u9020\u306b\u6ce8\u76ee\u3059\u308b\u3002<\/td>\n\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u628a\u63e1\u306b\u6ce8\u529b\u3057\u3001\u30c7\u30fc\u30bf\u3068\u95a2\u4fc2\u6027\u306b\u91cd\u70b9\u3092\u7f6e\u304f\u3002<\/td>\n<\/tr>\n
          \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30d1\u30e9\u30c0\u30a4\u30e0\u3078\u306e\u4f9d\u5b58<\/strong><\/td>\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30d1\u30e9\u30c0\u30a4\u30e0\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u3002<\/td>\n\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30d1\u30e9\u30c0\u30a4\u30e0\u306b\u4f9d\u5b58\u305b\u305a\u3001\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002<\/td>\n<\/tr>\n
          \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3051\u308b\u5229\u7528<\/strong><\/td>\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u3084UML\u30d9\u30fc\u30b9\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u5e83\u304f\u4f7f\u7528\u3055\u308c\u308b\u3002<\/td>\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3001\u30b9\u30ad\u30fc\u30de\u958b\u767a\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u306e\u78ba\u4fdd\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/td>\n<\/tr>\n
          \u5171\u540c\u8a2d\u8a08<\/strong><\/td>\n\u958b\u767a\u8005\u3068\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u9593\u3067\u306e\u5171\u540c\u8a2d\u8a08\u306e\u8b70\u8ad6\u3092\u4fc3\u9032\u3059\u308b\u3002<\/td>\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u8005\u3084\u958b\u767a\u8005\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u4f5c\u6210\u304a\u3088\u3073\u6587\u66f8\u5316\u3059\u308b\u306e\u3092\u652f\u63f4\u3059\u308b\u3002<\/td>\n<\/tr>\n
          \u62e1\u5f35\u6027<\/strong><\/td>\n\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u7684\u30b3\u30f3\u30bb\u30d7\u30c8\u3092\u7d44\u307f\u8fbc\u3080\u305f\u3081\u306b\u62e1\u5f35\u53ef\u80fd\u3067\u3042\u308b\u3002<\/td>\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u95a2\u9023\u4ee5\u5916\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3092\u8868\u73fe\u3059\u308b\u306b\u306f\u62e1\u5f35\u6027\u304c\u4f4e\u3044\u3002<\/p>\n

          \u00a0<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u3053\u306e\u8868\u306f\u30012\u7a2e\u985e\u306e\u56f3\u306e\u3055\u307e\u3056\u307e\u306a\u5074\u9762\u306b\u304a\u3051\u308b\u660e\u78ba\u306a\u6bd4\u8f03\u3092\u63d0\u4f9b\u3057\u3001\u4e3b\u306a\u7528\u9014\u3001\u8981\u7d20\u3001\u8868\u8a18\u6cd5\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u7570\u306a\u308b\u6bb5\u968e\u306b\u304a\u3051\u308b\u5f79\u5272\u3092\u5f37\u8abf\u3057\u3066\u3044\u308b\u3002\u30af\u30e9\u30b9\u56f3\u3068ERD\u306e\u9078\u629e\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5177\u4f53\u7684\u306a\u8981\u4ef6\u304a\u3088\u3073\u8a2d\u8a08\u3068\u30e2\u30c7\u30ea\u30f3\u30b0\u6d3b\u52d5\u306e\u7126\u70b9\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/p>\n

          \u8981\u7d04<\/h2>\n

          \u3053\u306e\u8a18\u4e8b\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306b\u304a\u3051\u308b2\u3064\u306e\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308b\u30af\u30e9\u30b9\u56f3\u3068\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u306e\u4e3b\u306a\u9055\u3044\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u3002\u30af\u30e9\u30b9\u56f3\u306f\u4e3b\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u4f7f\u7528\u3055\u308c\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u30af\u30e9\u30b9\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020\u3068\u95a2\u4fc2\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u306b\u6ce8\u529b\u3057\u3066\u3044\u308b\u3002\u4e00\u65b9\u3001ERD\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u3067\u3042\u308a\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u95a2\u4fc2\u3092\u8868\u73fe\u3059\u308b\u3002<\/p>\n

          \u30af\u30e9\u30b9\u56f3\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u9759\u7684\u69cb\u9020\u306b\u6ce8\u529b\u3057\u3001\u30af\u30e9\u30b9\u3001\u5c5e\u6027\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u95a2\u9023\u3092\u7279\u5fb4\u3068\u3057\u3066\u304a\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u304a\u3088\u3073\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u6700\u9069\u3067\u3042\u308b\u3002\u307e\u305f\u3001\u975e\u5e38\u306b\u62e1\u5f35\u53ef\u80fd\u3067\u3042\u308a\u3001\u5171\u540c\u8a2d\u8a08\u306e\u8b70\u8ad6\u3092\u4fc3\u9032\u3059\u308b\u3002<\/p>\n

          \u4e00\u65b9\u3001ERD\u306f\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u7126\u70b9\u3092\u5f53\u3066\u3001\u30c6\u30fc\u30d6\u30eb\u3001\u5217\u3001\u95a2\u4fc2\u3001\u5236\u7d04\u3092\u542b\u3080\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u3092\u6349\u3048\u308b\u3002ERD\u306f\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3057\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u6574\u7406\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u7279\u5b9a\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30d1\u30e9\u30c0\u30a4\u30e0\u306b\u675f\u7e1b\u3055\u308c\u305a\u3001\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u4f7f\u7528\u3055\u308c\u308b\u3002<\/p>\n

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- Visual Paradigm Guides Japanese<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/guides.visual-paradigm.com\/ja\/class-diagram-vs-entity-relationship-diagram-erd-a-comparative-guide\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30af\u30e9\u30b9\u56f3\u3068\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\uff1a\u6bd4\u8f03\u30ac\u30a4\u30c9 - Visual Paradigm Guides Japanese\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b 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