{"id":1546,"date":"2026-03-25T04:30:15","date_gmt":"2026-03-25T04:30:15","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/ja\/critical-normalization-rules-data-architects\/"},"modified":"2026-03-25T04:30:15","modified_gmt":"2026-03-25T04:30:15","slug":"critical-normalization-rules-data-architects","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/ja\/critical-normalization-rules-data-architects\/","title":{"rendered":"ERD\u30ac\u30a4\u30c9\uff1a\u30c7\u30fc\u30bf\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u306e\u305f\u3081\u306e\u91cd\u8981\u306a\u6b63\u898f\u5316\u30eb\u30fc\u30eb"},"content":{"rendered":"
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\"Line<\/figure>\n<\/div>\n

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    \n
  • \n

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  • \n

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      \n
    • \n

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    • \n

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    • \n

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        \n
      • \n

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      • \n

        \u6574\u5408\u6027\u30c1\u30a7\u30c3\u30af\uff1a<\/strong>\u5b8c\u5168\u306a\u30ad\u30fc\u306a\u3057\u3067\u306f\u3001\u3069\u306e\u5c5e\u6027\u3082\u63a8\u8ad6\u3067\u304d\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/li>\n<\/ul>\n

        \u300cProductName\u300d\u3092\u300cProductID\u300d\u3067\u30ea\u30f3\u30af\u3055\u308c\u308b\u72ec\u81ea\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u79fb\u52d5\u3059\u308b\u3053\u3068\u3067\u3001\u3042\u308b\u6ce8\u6587\u3067\u306f\u540d\u524d\u304c\u5909\u66f4\u3055\u308c\u3066\u3082\u5225\u306e\u6ce8\u6587\u3067\u306f\u5909\u66f4\u3055\u308c\u306a\u3044\u30ea\u30b9\u30af\u3092\u6392\u9664\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u5fc5\u8981\u306a\u30b9\u30c8\u30ec\u30fc\u30b8\u304c\u524a\u6e1b\u3055\u308c\u3001\u3059\u3079\u3066\u306e\u6ce8\u6587\u30ec\u30b3\u30fc\u30c9\u9593\u3067\u4e00\u8cab\u6027\u304c\u4fdd\u305f\u308c\u307e\u3059\u3002<\/p>\n

        \u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u306e\u9664\u53bb\uff083NF\uff09 \ud83d\udd17<\/h2>\n

        \u7b2c\u4e09\u6b63\u898f\u5f62\u306f\u3001\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u69cb\u9020\u3092\u3055\u3089\u306b\u4e00\u6b69\u9032\u3081\u308b\u3082\u306e\u3067\u3059\u3002\u30c6\u30fc\u30d6\u30eb\u304c3NF\u306b\u3042\u308b\u306e\u306f\u30012NF\u306b\u3042\u308a\u3001\u304b\u3064\u3059\u3079\u3066\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u304c\u4e3b\u30ad\u30fc\u306b\u5bfe\u3057\u3066\u63a8\u79fb\u7684\u306b\u4f9d\u5b58\u3057\u306a\u3044\u5834\u5408\u3067\u3059\u3002\u672c\u8cea\u7684\u306b\u3001\u3053\u308c\u306f\u975e\u30ad\u30fc\u5217\u304c\u4ed6\u306e\u975e\u30ad\u30fc\u5217\u306b\u4f9d\u5b58\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n

        EmployeeID\u3001EmployeeName\u3001DepartmentID\u3001DepartmentName\u3092\u6301\u3064\u30c6\u30fc\u30d6\u30eb\u3092\u60f3\u50cf\u3057\u3066\u304f\u3060\u3055\u3044\u3002EmployeeName\u304cDepartmentName\u3092\u6c7a\u5b9a\u3059\u308b\u5834\u5408\u3001\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u304c\u751f\u3058\u307e\u3059\u3002\u5f93\u696d\u54e1\u304c\u90e8\u7f72\u3092\u5909\u66f4\u3057\u305f\u5834\u5408\u3001\u5f93\u696d\u54e1\u30c6\u30fc\u30d6\u30eb\u5185\u306eDepartmentName\u304c\u6b63\u3057\u304f\u66f4\u65b0\u3055\u308c\u306a\u3044\u9650\u308a\u3001\u53e4\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u4fee\u6b63\u3059\u308b\u306b\u306f\u3001Department\u30c6\u30fc\u30d6\u30eb\u3092\u5206\u96e2\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

          \n
        • \n

          \u76f4\u63a5\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u307f\uff1a<\/strong>\u5c5e\u6027\u306f\u4ed6\u306e\u5c5e\u6027\u3067\u306f\u306a\u304f\u3001\u30ad\u30fc\u306b\u5bfe\u3057\u3066\u76f4\u63a5\u4f9d\u5b58\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<\/li>\n

        • \n

          \u8ad6\u7406\u7684\u30b0\u30eb\u30fc\u30d7\u5316\uff1a<\/strong>\u5171\u901a\u306e\u6c7a\u5b9a\u8981\u56e0\u3092\u6301\u3064\u95a2\u9023\u3059\u308b\u5c5e\u6027\u3092\u3001\u72ec\u81ea\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u3002<\/p>\n<\/li>\n

        • \n

          \u5916\u90e8\u30ad\u30fc\uff1a<\/strong>\u5206\u96e2\u3055\u308c\u305f\u30c6\u30fc\u30d6\u30eb\u3092\u3064\u306a\u3052\u308b\u305f\u3081\u306b\u5916\u90e8\u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n

          \u3053\u306e\u5206\u96e2\u306b\u3088\u308a\u3001\u90e8\u9580\u60c5\u5831\u306f\u4e00\u5ea6\u3060\u3051\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u90e8\u9580\u540d\u304c\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u3001\u4e00\u3064\u306e\u5834\u6240\u3067\u66f4\u65b0\u3055\u308c\u3001\u3059\u3079\u3066\u306e\u5f93\u696d\u54e1\u30ec\u30b3\u30fc\u30c9\u304c\u95a2\u4fc2\u3092\u901a\u3058\u3066\u81ea\u52d5\u7684\u306b\u5909\u66f4\u3092\u53cd\u6620\u3057\u307e\u3059\u3002<\/p>\n

          3NF\u3067\u306f\u4e0d\u5341\u5206\u306a\u5834\u5408\uff1aBCNF\u304a\u3088\u3073\u305d\u308c\u4ee5\u4e0a\u306e\u6bb5\u968e \ud83d\ude80<\/h2>\n

          3NF\u306f\u307b\u3068\u3093\u3069\u306e\u6a19\u6e96\u7684\u306a\u8a2d\u8a08\u30b7\u30ca\u30ea\u30aa\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u53b3\u5bc6\u306a3NF\u304c\u4e0d\u5341\u5206\u306a\u7279\u6b8a\u306a\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u30dc\u30a4\u30b9\u30fb\u30b3\u30c3\u30c9\u6b63\u898f\u5f62\uff08BCNF\uff09\u306f\u3001\u8907\u6570\u306e\u5019\u88dc\u30ad\u30fc\u304c\u3042\u308b\u5834\u5408\u306b\u5bfe\u51e6\u3067\u304d\u308b\u3001\u3088\u308a\u53b3\u683c\u306a3NF\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3059\u3002BCNF\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u95a2\u6570\u7684\u4f9d\u5b58\u95a2\u4fc2X \u2192 Y\u306b\u3064\u3044\u3066\u3001X\u304c\u30b9\u30fc\u30d1\u30fc\u30ad\u30fc\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u8981\u6c42\u3057\u307e\u3059\u3002<\/p>\n

          \u751f\u5f92\u304c\u8907\u6570\u306e\u6559\u5e2b\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u3001\u6559\u5e2b\u304c\u8907\u6570\u306e\u79d1\u76ee\u3092\u62c5\u5f53\u3067\u304d\u308b\u72b6\u6cc1\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4e3b\u30ad\u30fc\u304c\uff08\u751f\u5f92\u3001\u79d1\u76ee\uff09\u3067\u3042\u308a\u3001\u6559\u5e2b\u304c\u79d1\u76ee\u306b\u57fa\u3065\u3044\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u5834\u5408\u3001\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ad6\u7406\u304c\u8907\u96d1\u306b\u91cd\u8907\u3059\u308b\u72b6\u6cc1\u306b\u76f4\u9762\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002BCNF\u306f\u3001\u5019\u88dc\u30ad\u30fc\u3067\u306a\u3044\u5217\u306e\u96c6\u5408\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u308b\u5217\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n

            \n
          • \n

            \u30b9\u30fc\u30d1\u30fc\u30ad\u30fc\u8981\u4ef6\uff1a<\/strong>\u3069\u306e\u4f9d\u5b58\u95a2\u4fc2\u306b\u304a\u3044\u3066\u3082\u3001\u6c7a\u5b9a\u8981\u56e0\u306f\u30b9\u30fc\u30d1\u30fc\u30ad\u30fc\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n<\/li>\n

          • \n

            \u8907\u96d1\u306a\u95a2\u4fc2\uff1a<\/strong>\u4e2d\u9593\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u3092\u51e6\u7406\u3059\u308b\u3002<\/p>\n<\/li>\n

          • \n

            \u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u8003\u616e\uff1a<\/strong>\u3088\u308a\u9ad8\u3044\u6b63\u898f\u5f62\u306f\u3001\u7d50\u5408\u306e\u8907\u96d1\u6027\u3092\u5897\u52a0\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n

            \u7b2c\u56db\u6b63\u898f\u5f62\uff084NF\uff09\u304a\u3088\u3073\u7b2c\u4e94\u6b63\u898f\u5f62\uff085NF\uff09\u306f\u3001\u591a\u5024\u4f9d\u5b58\u95a2\u4fc2\u304a\u3088\u3073\u7d50\u5408\u4f9d\u5b58\u95a2\u4fc2\u3092\u53d6\u308a\u6271\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u4e00\u822c\u7684\u306a\u30d3\u30b8\u30cd\u30b9\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u7a00\u3067\u3059\u304c\u3001\u5c02\u9580\u7684\u306a\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3084\u79d1\u5b66\u7684\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u304a\u3044\u3066\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n

            \u6226\u7565\u7684\u975e\u6b63\u898f\u5316\u306e\u82b8\u8853 \u26a1<\/h2>\n

            \u6b63\u898f\u5316\u304c\u5e38\u306b\u6700\u7d42\u76ee\u6a19\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u4e00\u90e8\u306e\u9ad8\u6027\u80fd\u74b0\u5883\u3067\u306f\u3001\u53b3\u683c\u306a\u6b63\u898f\u5316\u304c\u30af\u30a8\u30ea\u901f\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u904e\u5270\u306a\u7d50\u5408\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u6226\u7565\u7684\u975e\u6b63\u898f\u5316\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002\u975e\u6b63\u898f\u5316\u3068\u306f\u3001\u8aad\u307f\u53d6\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5197\u9577\u306a\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n

            \u3057\u304b\u3057\u3001\u3053\u308c\u306f\u4efb\u610f\u306b\u884c\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8aad\u307f\u53d6\u308a\u901f\u5ea6\u3068\u66f8\u304d\u8fbc\u307f\u306e\u8907\u96d1\u3055\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u660e\u78ba\u306b\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8aad\u307f\u53d6\u308a\u64cd\u4f5c\u304c\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u3092\u306f\u308b\u304b\u306b\u4e0a\u56de\u308b\u5834\u5408\u3001\u5197\u9577\u6027\u306e\u5c0e\u5165\u306f\u6b63\u5f53\u5316\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

              \n
            • \n

              \u8aad\u307f\u53d6\u308a\u4e2d\u5fc3\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff1a<\/strong>\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210\u304c\u4e3b\u306a\u6a5f\u80fd\u3067\u3042\u308b\u5834\u5408\u3001\u975e\u6b63\u898f\u5316\u306b\u3088\u308a\u30af\u30a8\u30ea\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

            • \n

              \u30ad\u30e3\u30c3\u30b7\u30e5\u30ec\u30a4\u30e4\u30fc\uff1a<\/strong>\u30b9\u30ad\u30fc\u30de\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n<\/li>\n

            • \n

              \u30c7\u30fc\u30bf\u4e00\u8cab\u6027\u306e\u30ea\u30b9\u30af\uff1a<\/strong> \u5197\u9577\u306a\u30c7\u30fc\u30bf\u304c\u540c\u671f\u304b\u3089\u305a\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/li>\n

            • \n

              \u66f8\u304d\u8fbc\u307f\u30da\u30ca\u30eb\u30c6\u30a3\uff1a<\/strong> \u3059\u3079\u3066\u306e\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u306f\u3001\u30c7\u30fc\u30bf\u306e\u3059\u3079\u3066\u306e\u5197\u9577\u30b3\u30d4\u30fc\u3092\u66f4\u65b0\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/li>\n<\/ul>\n

              \u4e00\u822c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u3001\u30ec\u30dd\u30fc\u30c8\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u7528\u306e\u8981\u7d04\u30c6\u30fc\u30d6\u30eb\u3092\u975e\u6b63\u898f\u5316\u3059\u308b\u4e00\u65b9\u3067\u3001\u30b3\u30a2\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30c7\u30fc\u30bf\u306f3NF\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u6574\u5408\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

              \u6b63\u898f\u5f62\u306e\u6bd4\u8f03<\/h2>\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
              \n

              \u6b63\u898f\u5f62<\/p>\n<\/th>\n

              		\n

              \u4e3b\u306a\u7126\u70b9<\/p>\n<\/th>\n

              		\n

              \u30ad\u30fc\u5236\u7d04<\/p>\n<\/th>\n

              		\n

              \u5178\u578b\u7684\u306a\u4f7f\u7528\u30b1\u30fc\u30b9<\/p>\n<\/th>\n<\/tr>\n

              \n

              1NF<\/p>\n<\/td>\n

              		\n

              \u539f\u5b50\u5024<\/p>\n<\/td>\n

              		\n

              \u7e70\u308a\u8fd4\u3057\u30b0\u30eb\u30fc\u30d7\u306a\u3057<\/p>\n<\/td>\n

              		\n

              \u521d\u671f\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08<\/p>\n<\/td>\n<\/tr>\n

              \n

              2NF<\/p>\n<\/td>\n

              		\n

              \u5b8c\u5168\u4f9d\u5b58<\/p>\n<\/td>\n

              		\n

              \u8907\u5408\u30ad\u30fc\u306b\u5bfe\u3059\u308b\u90e8\u5206\u4f9d\u5b58\u306a\u3057<\/p>\n<\/td>\n

              		\n

              \u8907\u96d1\u306a\u30ad\u30fc<\/p>\n<\/td>\n<\/tr>\n

              \n

              3NF<\/p>\n<\/td>\n

              		\n

              \u63a8\u79fb\u7684\u4f9d\u5b58<\/p>\n<\/td>\n

              		\n

              \u975e\u30ad\u30fc\u5c5e\u6027\u306f\u30ad\u30fc\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b<\/p>\n<\/td>\n

              		\n

              \u4e00\u822c\u7684\u306a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af<\/p>\n<\/td>\n<\/tr>\n

              \n

              BCNF<\/p>\n<\/td>\n

              		\n

              \u30b9\u30fc\u30d1\u30fc\u30ad\u30fc<\/p>\n<\/td>\n

              		\n

              \u6c7a\u5b9a\u8981\u56e0\u306f\u30b9\u30fc\u30d1\u30fc\u30ad\u30fc\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/p>\n<\/td>\n

              		\n

              \u8907\u96d1\u306a\u5019\u88dc\u30ad\u30fc<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u30c7\u30fc\u30bf\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u5411\u3051\u5b9f\u7528\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 \u2705<\/h2>\n

              ERD\u304c\u696d\u754c\u6a19\u6e96\u3092\u6e80\u305f\u3059\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u304c\u66f8\u304b\u308c\u308b\u524d\u306b\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n

                \n
              • \n

                \u539f\u5b50\u6027\u306e\u78ba\u8a8d\uff1a<\/strong> \u3069\u306e\u5217\u306b\u3082\u8907\u6570\u306e\u7570\u306a\u308b\u5024\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/li>\n

              • \n

                \u4e3b\u30ad\u30fc\u306e\u7279\u5b9a\uff1a<\/strong> \u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u4f9d\u5b58\u95a2\u4fc2\u3092\u78ba\u8a8d\u3059\u308b\uff1a<\/strong> \u5404\u5217\u304c\u4e3b\u30ad\u30fc\u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u304b\u3092\u660e\u78ba\u306b\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u5916\u90e8\u30ad\u30fc\u3092\u78ba\u8a8d\u3059\u308b\uff1a<\/strong> \u95a2\u4fc2\u6027\u304c\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u7570\u5e38\u3092\u5206\u6790\u3059\u308b\uff1a<\/strong> \u633f\u5165\u3001\u66f4\u65b0\u3001\u524a\u9664\u64cd\u4f5c\u3092\u982d\u306e\u4e2d\u3067\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8a55\u4fa1\u3059\u308b\uff1a<\/strong> 3NF\u3067\u5341\u5206\u304b\u3001\u307e\u305f\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306e\u305f\u3081\u306e\u975e\u6b63\u898f\u5316\u304c\u5fc5\u8981\u304b\u3092\u5224\u65ad\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u5236\u7d04\u3092\u6587\u66f8\u5316\u3059\u308b\uff1a<\/strong> \u30c7\u30fc\u30bf\u5165\u529b\u3068\u691c\u8a3c\u306e\u30eb\u30fc\u30eb\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<\/li>\n

              • \n

                \u6210\u9577\u3092\u898b\u636e\u3048\u305f\u8a08\u753b\u3092\u7acb\u3066\u308b\uff1a<\/strong> \u30b9\u30ad\u30fc\u30de\u304c\u30c7\u30fc\u30bf\u91cf\u306e\u5897\u52a0\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u304b\u3092\u691c\u8a0e\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n

                \u3053\u308c\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u5909\u5316\u306b\u5f37\u3044\u30b9\u30ad\u30fc\u30de\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u9759\u7684\u3067\u306f\u306a\u304f\u3001\u30d3\u30b8\u30cd\u30b9\u30cb\u30fc\u30ba\u3068\u3068\u3082\u306b\u9032\u5316\u3057\u307e\u3059\u3002\u9069\u5207\u306b\u6b63\u898f\u5316\u3055\u308c\u305f\u57fa\u76e4\u304c\u3042\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u4e00\u90e8\u306b\u5909\u66f4\u304c\u3042\u3063\u3066\u3082\u4ed6\u306e\u90e8\u5206\u306b\u4e88\u671f\u305b\u306c\u5f71\u97ff\u304c\u6ce2\u53ca\u3059\u308b\u306e\u3092\u9632\u304e\u3001\u9032\u5316\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u3057\u307e\u3059\u3002<\/p>\n

                \u6b63\u898f\u5316\u306f\u6cd5\u5247\u3067\u306f\u306a\u304f\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u30023NF\u306f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u6a19\u6e96\u3067\u3059\u304c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5177\u4f53\u7684\u306a\u30cb\u30fc\u30ba\u306b\u3088\u3063\u3066\u306f\u4f8b\u5916\u3092\u8a2d\u3051\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u5e38\u306b\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u52b9\u7387\u6027\u3092\u6700\u512a\u5148\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e2\u3064\u306e\u8981\u7d20\u3092\u614e\u91cd\u306b\u30d0\u30e9\u30f3\u30b9\u3055\u305b\u308c\u3070\u3001ERD\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u5805\u56fa\u306a\u57fa\u76e4\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

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