{"id":3583,"date":"2026-03-27T19:03:23","date_gmt":"2026-03-27T11:03:23","guid":{"rendered":"https:\/\/www.go2posts.com\/ja\/implementing-solid-principles-maintainable-code\/"},"modified":"2026-03-27T19:03:23","modified_gmt":"2026-03-27T11:03:23","slug":"implementing-solid-principles-maintainable-code","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/ja\/implementing-solid-principles-maintainable-code\/","title":{"rendered":"OOAD\u30ac\u30a4\u30c9\uff1a\u4fdd\u5b88\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306eSOLID\u539f\u5247"},"content":{"rendered":"

\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306f\u9032\u5316\u3059\u308b\u3002\u8981\u4ef6\u306f\u5909\u5316\u3057\u3001\u6a5f\u80fd\u306f\u62e1\u5f35\u3055\u308c\u3001\u30d0\u30b0\u30ec\u30dd\u30fc\u30c8\u306f\u84c4\u7a4d\u3055\u308c\u308b\u3002\u3053\u306e\u3088\u3046\u306a\u72b6\u6cc1\u4e0b\u3067\u3001\u57fa\u76e4\u3068\u306a\u308b\u30b3\u30fc\u30c9\u69cb\u9020\u306e\u54c1\u8cea\u304c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u6210\u9577\u3059\u308b\u304b\u505c\u6ede\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u5206\u6790\u8a2d\u8a08\uff08OOAD\uff09\u306f\u3001\u5805\u7262\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u67a0\u7d44\u307f\u3092\u63d0\u4f9b\u3059\u308b\u304c\u3001\u305d\u306e\u6982\u5ff5\u3092\u6b63\u3057\u304f\u9069\u7528\u3059\u308b\u306b\u306f\u81ea\u5236\u5fc3\u304c\u6c42\u3081\u3089\u308c\u308b\u3002\u3053\u3053\u306bSOLID\u539f\u5247\u306e\u767b\u5834\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e5\u3064\u306e\u8a2d\u8a08\u30eb\u30fc\u30eb\u306f\u3001\u7406\u89e3\u3057\u3084\u3059\u304f\u3001\u67d4\u8edf\u3067\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u7dad\u6301\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306e\u30ac\u30a4\u30c9\u3068\u306a\u308b\u3002 \ud83e\udde9<\/p>\n

\u591a\u304f\u306e\u958b\u767a\u8005\u306f\u30af\u30e9\u30b9\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u304c\u3001\u8106\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u751f\u307f\u51fa\u3059\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u4e0a\u306e\u610f\u601d\u6c7a\u5b9a\u306b\u82e6\u6226\u3057\u3066\u3044\u308b\u3002\u3053\u3053\u3067\u306e\u76ee\u6a19\u306f\u3001\u521d\u65e5\u304b\u3089\u5b8c\u74a7\u306b\u898b\u3048\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u6642\u9593\u306e\u7d4c\u904e\u306b\u8010\u3048\u3046\u308b\u57fa\u76e4\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u5404\u539f\u5247\u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3001\u7406\u8ad6\u3001\u5b9f\u8df5\u7684\u5fdc\u7528\u3001\u958b\u767a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3078\u306e\u5f71\u97ff\u3092\u691c\u8a0e\u3059\u308b\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306e\u7d42\u4e86\u6642\u306b\u306f\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3084\u3001\u5b89\u5b9a\u6027\u3092\u610f\u8b58\u3057\u305f\u65b0\u3057\u3044\u8a2d\u8a08\u3092\u884c\u3046\u305f\u3081\u306e\u660e\u78ba\u306a\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3092\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u3060\u308d\u3046\u3002 \ud83d\ude80<\/p>\n

\n
\"Hand-drawn<\/figure>\n<\/div>\n

\ud83d\udcda SOLID\u539f\u5247\u3068\u306f\u4f55\u304b\uff1f<\/h2>\n

SOLID\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u3092\u3088\u308a\u7406\u89e3\u3057\u3084\u3059\u304f\u3001\u67d4\u8edf\u3067\u3001\u4fdd\u5b88\u3057\u3084\u3059\u304f\u3059\u308b\u76ee\u7684\u3067\u8a2d\u8a08\u3055\u308c\u305f5\u3064\u306e\u8a2d\u8a08\u539f\u5247\u3092\u8868\u3059\u982d\u6587\u5b57 acronym \u3067\u3042\u308b\u3002\u30ed\u30d0\u30fc\u30c8\u30fbC\u30fb\u30de\u30fc\u30c6\u30a3\u30f3\u306b\u3088\u3063\u3066\u63d0\u5531\u3055\u308c\u305f\u304c\u3001\u305d\u306e\u6838\u3068\u306a\u308b\u6982\u5ff5\u306f\u3001\u3088\u308a\u53e4\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u6587\u732e\u306b\u7531\u6765\u3059\u308b\u3002\u3053\u308c\u3089\u306e\u539f\u5247\u306f\u53b3\u683c\u306a\u6cd5\u5247\u3067\u306f\u306a\u304f\u3001\u958b\u767a\u8005\u304c\u8907\u96d1\u306a\u8a2d\u8a08\u610f\u601d\u6c7a\u5b9a\u3092\u4e57\u308a\u8d8a\u3048\u308b\u306e\u3092\u52a9\u3051\u308b\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u3042\u308b\u3002\u6b63\u3057\u304f\u9069\u7528\u3055\u308c\u308c\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u7d50\u5408\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u3001\u51dd\u96c6\u5ea6\u3092\u9ad8\u3081\u308b\u3002<\/p>\n

SOLID\u3092\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5065\u5168\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30ea\u30b9\u30c8\u3068\u8003\u3048\u3066\u307b\u3057\u3044\u3002\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u3053\u308c\u3089\u306e\u30eb\u30fc\u30eb\u306b\u9055\u53cd\u3059\u308b\u3068\u3001\u3057\u3070\u3057\u3070\u6280\u8853\u7684\u8ca0\u50b5\u306e\u539f\u56e0\u3068\u306a\u308b\u3002\u3053\u308c\u3089\u306e\u539f\u5247\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u306b\u5bfe\u51e6\u3059\u308b\uff1a<\/p>\n

    \n
  • \u3042\u307e\u308a\u306b\u3082\u591a\u304f\u306e\u4f5c\u696d\u3092\u884c\u3046\u30af\u30e9\u30b9<\/li>\n
  • \u65b0\u3057\u3044\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u305f\u3068\u304d\u306b\u58ca\u308c\u308b\u30b3\u30fc\u30c9<\/li>\n
  • \u7279\u5b9a\u306e\u5b9f\u88c5\u306b\u3042\u307e\u308a\u306b\u3082\u5f37\u304f\u7d50\u5408\u3055\u308c\u305f\u4f9d\u5b58\u95a2\u4fc2<\/li>\n
  • \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u4e0d\u8981\u306a\u30e1\u30bd\u30c3\u30c9\u306b\u4f9d\u5b58\u3055\u305b\u3089\u308c\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/li>\n<\/ul>\n

    \u3053\u308c\u3089\u306e\u5b9f\u8df5\u3092\u63a1\u7528\u3059\u308b\u306b\u306f\u3001\u30de\u30a4\u30f3\u30c9\u30bb\u30c3\u30c8\u306e\u5909\u5316\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u500b\u3005\u306e\u632f\u308b\u821e\u3044\u3067\u306f\u306a\u304f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u9593\u306e\u95a2\u4fc2\u6027\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u4ee5\u4e0b\u306b\u3001\u5404\u6587\u5b57\u304c\u8868\u3059\u5185\u5bb9\u3092\u8aac\u660e\u3059\u308b\uff1a<\/p>\n

      \n
    • S<\/strong>\uff1a\u5358\u4e00\u8cac\u4efb\u539f\u5247<\/li>\n
    • O<\/strong>\uff1a\u958b\u9589\u539f\u5247<\/li>\n
    • L<\/strong>\uff1a\u30ea\u30b9\u30b3\u30d5\u306e\u7f6e\u63db\u539f\u5247<\/li>\n
    • I<\/strong>\uff1a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5206\u96e2\u539f\u5247<\/li>\n
    • D<\/strong>\uff1a\u4f9d\u5b58\u95a2\u4fc2\u9006\u8ee2\u539f\u5247<\/li>\n<\/ul>\n

      \ud83c\udfaf S\uff1a\u5358\u4e00\u8cac\u4efb\u539f\u5247<\/h2>\n

      \u5358\u4e00\u8cac\u4efb\u539f\u5247\uff08SRP\uff09\u306f\u3001\u30af\u30e9\u30b9\u306f\u4e00\u3064\u3001\u305d\u3057\u3066\u305f\u3060\u4e00\u3064\u306e\u5909\u66f4\u306e\u7406\u7531\u3092\u6301\u3064\u3079\u304d\u3060\u3068\u8ff0\u3079\u3066\u3044\u308b\u3002\u3053\u308c\u306f\u30af\u30e9\u30b9\u304c\u4e00\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u3057\u304b\u6301\u305f\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u306f\u306a\u3044\u3002\u30af\u30e9\u30b9\u306f\u4e00\u3064\u306e\u6a5f\u80fd\u307e\u305f\u306f\u95a2\u5fc3\u4e8b\u3060\u3051\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3059\u3079\u304d\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002\u30af\u30e9\u30b9\u304c\u8907\u6570\u306e\u8cac\u4efb\u3092\u8ca0\u3046\u3068\u3001\u8106\u5f31\u306b\u306a\u308b\u3002\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4e00\u3064\u306e\u9818\u57df\u3067\u306e\u5909\u66f4\u304c\u3001\u5225\u306e\u9818\u57df\u3092\u610f\u56f3\u305b\u305a\u7834\u58ca\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u306a\u305c\u306a\u3089\u3001\u305d\u308c\u3089\u306f\u540c\u3058\u30b3\u30fc\u30c9\u69cb\u9020\u3092\u5171\u6709\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3042\u308b\u3002 \ud83e\uddf1<\/p>\n

      \u306a\u305cSRP\u304c\u91cd\u8981\u306a\u306e\u304b<\/h3>\n

      \u6ce8\u6587\u306e\u51e6\u7406\u3092\u62c5\u5f53\u3059\u308b\u30af\u30e9\u30b9\u3092\u8003\u3048\u3066\u307f\u3088\u3046\u3002\u3082\u3057\u540c\u3058\u30af\u30e9\u30b9\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30c7\u30fc\u30bf\u4fdd\u5b58\u3084\u30e1\u30fc\u30eb\u901a\u77e5\u306e\u9001\u4fe1\u3082\u62c5\u5f53\u3057\u3066\u3044\u308b\u306a\u3089\u3070\u3001\u305d\u308c\u306fSRP\u306b\u9055\u53cd\u3057\u3066\u3044\u308b\u3002\u306a\u305c\u306a\u3089\u3001\u5909\u66f4\u306e\u7406\u7531\u304c\u7570\u306a\u308b\u304b\u3089\u3067\u3042\u308b\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u89e6\u3089\u305a\u306b\u30e1\u30fc\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5909\u66f4\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u305d\u308c\u3089\u304c\u7d50\u5408\u3055\u308c\u3066\u3044\u308b\u3068\u3001\u901a\u77e5\u30b7\u30b9\u30c6\u30e0\u306e\u66f4\u65b0\u4e2d\u306b\u30c7\u30fc\u30bf\u6c38\u7d9a\u6027\u3092\u7834\u58ca\u3059\u308b\u30ea\u30b9\u30af\u304c\u3042\u308b\u3002<\/p>\n

      SRP\u3092\u9075\u5b88\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u5229\u70b9\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308b\uff1a<\/p>\n

        \n
      • \u8907\u96d1\u3055\u306e\u4f4e\u6e1b<\/strong>\uff1a\u5c0f\u3055\u306a\u30af\u30e9\u30b9\u306f\u8aad\u307f\u3084\u3059\u304f\u3001\u7406\u89e3\u3057\u3084\u3059\u3044\u3002<\/li>\n
      • \u30c6\u30b9\u30c8\u306e\u5bb9\u6613\u3055<\/strong>\uff1a\u95a2\u4fc2\u306e\u306a\u3044\u6a5f\u80fd\u3092\u30e2\u30c3\u30af\u3059\u308b\u5fc5\u8981\u306a\u304f\u3001\u7279\u5b9a\u306e\u632f\u308b\u821e\u3044\u3092\u72ec\u7acb\u3057\u3066\u30c6\u30b9\u30c8\u3067\u304d\u308b\u3002<\/li>\n
      • \u7d50\u5408\u306e\u7de9\u548c<\/strong>: 1\u3064\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u306e\u5909\u66f4\u304c\u3001\u95a2\u4fc2\u306e\u306a\u3044\u4ed6\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u6ce2\u53ca\u3057\u306a\u3044\u3002<\/li>\n<\/ul>\n

        SRP\u3078\u306e\u9069\u5408\u306e\u305f\u3081\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/h3>\n

        SRP\u306b\u9055\u53cd\u3059\u308b\u30af\u30e9\u30b9\u3092\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u306b\u306f\u3001\u660e\u78ba\u306b\u7570\u306a\u308b\u8cac\u4efb\u3092\u7279\u5b9a\u3059\u308b\u3002\u305d\u308c\u305e\u308c\u306e\u8cac\u4efb\u3092\u500b\u5225\u306e\u30af\u30e9\u30b9\u306b\u62bd\u51fa\u3059\u308b\u3002\u305f\u3068\u3048\u3070\u3001\u7a0e\u91d1\u306e\u8a08\u7b97\u30ed\u30b8\u30c3\u30af\u3068\u6ce8\u6587\u306e\u6c38\u7d9a\u5316\u30ed\u30b8\u30c3\u30af\u3092\u5206\u96e2\u3059\u308b\u3002\u3053\u306e\u5206\u96e2\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5c64\u3092\u6c17\u306b\u305b\u305a\u306b\u7a0e\u91d1\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5909\u66f4\u3067\u304d\u308b\u3002\u307e\u305f\u3001\u6c38\u7d9a\u5316\u30e1\u30ab\u30cb\u30ba\u30e0\uff08\u305f\u3068\u3048\u3070\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u30af\u30e9\u30a6\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u3078\uff09\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u3082\u3001\u30b3\u30a2\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u5909\u66f4\u305b\u305a\u306b\u53ef\u80fd\u306b\u306a\u308b\u3002\ud83d\udd27<\/p>\n

        \ud83d\udd13 O: \u958b\u653e\u30fb\u9589\u9396\u306e\u539f\u5247<\/h2>\n

        \u958b\u653e\u30fb\u9589\u9396\u306e\u539f\u5247\uff08OCP\uff09\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u62e1\u5f35\u306b\u5bfe\u3057\u3066\u958b\u304b\u308c\u3066\u3044\u306a\u304c\u3089\u3001\u5909\u66f4\u306b\u5bfe\u3057\u3066\u9589\u3058\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u308b\u3002\u4e00\u898b\u3059\u308b\u3068\u77db\u76fe\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u601d\u3048\u308b\u3002\u3069\u3046\u3057\u3066\u958b\u304b\u308c\u306a\u304c\u3089\u3082\u9589\u3058\u3066\u3044\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3060\u308d\u3046\u304b\uff1f\u305d\u306e\u610f\u5473\u306f\u3001\u65e2\u5b58\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u305b\u305a\u306b\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u8ffd\u52a0\u3067\u304d\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002\u3053\u308c\u306f\u62bd\u8c61\u5316\u3068\u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3059\u308b\u3002\ud83e\uddec<\/p>\n

        \u5909\u66f4\u306e\u30b3\u30b9\u30c8<\/h3>\n

        \u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3057\u3066\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3001\u30d0\u30b0\u306e\u518d\u767a\uff08\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\uff09\u306e\u30ea\u30b9\u30af\u304c\u751f\u3058\u308b\u3002\u5909\u66f4\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9\u306f\u304a\u305d\u3089\u304f\u30c6\u30b9\u30c8\u6e08\u307f\u3067\u4fe1\u983c\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002\u5909\u66f4\u3059\u308b\u305f\u3073\u306b1\u884c\u3054\u3068\u306b\u65b0\u3057\u3044\u30d0\u30b0\u306e\u539f\u56e0\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002OCP\u306f\u3001\u65b0\u3057\u3044\u632f\u308b\u821e\u3044\u3092\u8ffd\u52a0\u3059\u308b\u969b\u306b\u306f\u3001\u65e2\u5b58\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u304b\u3001\u65e2\u5b58\u306e\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308b\u65b0\u3057\u3044\u30af\u30e9\u30b9\u3084\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3059\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u3092\u63a8\u5968\u3059\u308b\u3002<\/p>\n

        OCP\u306e\u5b9f\u88c5<\/h3>\n

        \u5951\u7d04\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b\u62bd\u8c61\u30af\u30e9\u30b9\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3002\u6b21\u306b\u3001\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u5fdc\u3058\u305f\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u3092\u4f5c\u6210\u3059\u308b\u3002\u65b0\u3057\u3044\u652f\u6255\u3044\u65b9\u6cd5\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001\u65e2\u5b58\u306e\u652f\u6255\u3044\u30d7\u30ed\u30bb\u30c3\u30b5\u306b\u300cif\u300d\u6587\u3092\u8ffd\u52a0\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002if<\/code>\u6587\u3092\u65e2\u5b58\u306e\u652f\u6255\u3044\u30d7\u30ed\u30bb\u30c3\u30b5\u306b\u8ffd\u52a0\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u4ee3\u308f\u308a\u306b\u3001\u652f\u6255\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u65b0\u3057\u3044\u652f\u6255\u3044\u30d7\u30ed\u30bb\u30c3\u30b5\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3002\u30e1\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30c9\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u3001\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u306e\u8a73\u7d30\u3092\u77e5\u3089\u306a\u304f\u3066\u3082\u3088\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30a2\u30ed\u30b8\u30c3\u30af\u306f\u5909\u66f4\u304b\u3089\u9589\u3058\u305f\u72b6\u614b\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

        OCP\u306e\u305f\u3081\u306e\u4e3b\u306a\u6226\u7565\uff1a<\/p>\n

          \n
        • \u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u3092\u4f7f\u3063\u3066\u632f\u308b\u821e\u3044\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u5ef6\u671f\u3059\u308b\u3002<\/li>\n
        • \u76f4\u63a5\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4f9d\u5b58\u95a2\u4fc2\u3092\u6ce8\u5165\u3059\u308b\u3002<\/li>\n
        • \u632f\u308b\u821e\u3044\u306e\u5909\u5316\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u6226\u7565\u30d1\u30bf\u30fc\u30f3\u3084\u30d5\u30a1\u30af\u30c8\u30ea\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3059\u308b\u3002<\/li>\n<\/ul>\n

          \ud83d\udd04 L: \u30ea\u30b9\u30b3\u30d5\u306e\u7f6e\u63db\u539f\u5247<\/h2>\n

          \u30ea\u30b9\u30b3\u30d5\u306e\u7f6e\u63db\u539f\u5247\uff08LSP\uff09\u306f\u3001\u3057\u3070\u3057\u3070\u30b0\u30eb\u30fc\u30d7\u306e\u4e2d\u3067\u6700\u3082\u62bd\u8c61\u7684\u306a\u3082\u306e\u3068\u3055\u308c\u308b\u3002\u3053\u308c\u306f\u3001\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u3001\u305d\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u7f6e\u304d\u63db\u3048\u3066\u3082\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u58ca\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u308b\u3002\u3088\u308a\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u4efb\u610f\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u3001\u5dee\u7570\u3092\u610f\u8b58\u305b\u305a\u306b\u4f7f\u7528\u3067\u304d\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7d99\u627f\u304c\u6b63\u3057\u304f\u4f7f\u308f\u308c\u3001\u671f\u5f85\u3092\u640d\u306a\u308f\u306a\u3044\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3002\u2696\ufe0f<\/p>\n

          LSP\u306e\u9055\u53cd<\/h3>\n

          \u3088\u304f\u3042\u308b\u9055\u53cd\u306f\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3001\u4e8b\u524d\u6761\u4ef6\u3084\u4e8b\u5f8c\u6761\u4ef6\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\u3067\u3042\u308b\u3002\u305f\u3068\u3048\u3070\u3001\u89aa\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u623b\u308a\u5024\u304c\u5e38\u306bnull\u3067\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306fnull\u3092\u8fd4\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u305d\u3046\u3059\u308b\u3068\u3001\u89aa\u30af\u30e9\u30b9\u306e\u5951\u7d04\u306b\u4f9d\u5b58\u3059\u308b\u30b3\u30fc\u30c9\u306f\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d7\u3051\u53d6\u3063\u305f\u969b\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u578b\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u78ba\u7acb\u3055\u308c\u305f\u4fe1\u983c\u304c\u5d29\u308c\u3066\u3057\u307e\u3046\u3002<\/p>\n

          \u7f6e\u63db\u53ef\u80fd\u6027\u306e\u78ba\u4fdd<\/h3>\n

          LSP\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306f\u89aa\u30af\u30e9\u30b9\u306e\u5951\u7d04\u3092\u5b88\u3089\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3053\u308c\u306b\u306f\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u542b\u307e\u308c\u308b\uff1a<\/p>\n

            \n
          • \u89aa\u30af\u30e9\u30b9\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u4e0d\u5909\u6761\u4ef6\u3092\u7dad\u6301\u3059\u308b\u3002<\/li>\n
          • \u89aa\u30af\u30e9\u30b9\u3067\u5ba3\u8a00\u3055\u308c\u3066\u3044\u306a\u3044\u65b0\u3057\u3044\u4f8b\u5916\u3092\u6295\u3052\u306a\u3044\u3053\u3068\u3002<\/li>\n
          • \u526f\u4f5c\u7528\u304c\u89aa\u30af\u30e9\u30b9\u306e\u632f\u308b\u821e\u3044\u3068\u4e00\u8cab\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n

            \u30b5\u30d6\u30af\u30e9\u30b9\u304c\u89aa\u30af\u30e9\u30b9\u306e\u5951\u7d04\u3092\u679c\u305f\u305b\u306a\u3044\u5834\u5408\u306f\u3001\u305d\u306e\u89aa\u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u4ee3\u308f\u308a\u306b\u3001\u5171\u901a\u306e\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u5171\u6709\u3059\u308b\u304b\u3001\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u306b\u4f9d\u5b58\u3059\u308b\u3079\u304d\u3067\u3042\u308b\u3002\u300eis-a\u300f\u95a2\u4fc2\u304c\u5f31\u3044\u304b\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u3001\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u306f\u7d99\u627f\u3088\u308a\u3082\u5b89\u5168\u306a\u4ee3\u66ff\u624b\u6bb5\u3068\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3002\ud83d\udee1\ufe0f<\/p>\n

            \ud83d\udd0c I: \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5206\u96e2\u306e\u539f\u5247<\/h2>\n

            \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5206\u96e2\u306e\u539f\u5247\uff08ISP\uff09\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u4f7f\u308f\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u306b\u4f9d\u5b58\u3055\u305b\u3089\u308c\u3066\u306f\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u308b\u3002\u4e00\u3064\u306e\u5de8\u5927\u3067\u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u5c0f\u3055\u306a\u3001\u7279\u5b9a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u6301\u3064\u3053\u3068\u304c\u597d\u307e\u3057\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30e9\u30b9\u304c\u4f7f\u308f\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30af\u30e9\u30b9\u304c\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u3068\u304d\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5185\u306e\u3059\u3079\u3066\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3092\u7d04\u675f\u3057\u3066\u3044\u308b\u3002ISP\u306f\u3001\u3053\u306e\u7d04\u675f\u304c\u610f\u5473\u304c\u3042\u308a\u3001\u8ca0\u62c5\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3002\ud83e\udde9<\/p>\n

            \u592a\u3063\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u554f\u984c\u70b9<\/h3>\n

            \u60f3\u50cf\u3057\u3066\u307f\u3088\u3046\u3002\u30ef\u30fc\u30ab\u30fc<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u5099\u3048\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u3001work()<\/code>, eat()<\/code>\u3001\u304a\u3088\u3073sleep()<\/code>\u3002\u3082\u3057\u30ed\u30dc\u30c3\u30c8<\/code> \u30af\u30e9\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u3001\u30ef\u30fc\u30ab\u30fc<\/code> \u3092\u5b9f\u88c5\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002eat()<\/code> \u304a\u3088\u3073sleep()<\/code>\u30ed\u30dc\u30c3\u30c8\u306b\u3068\u3063\u3066\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30ed\u30dc\u30c3\u30c8\u306b\u5f37\u5236\u7684\u306b\u5b9f\u88c5\u3055\u305b\u308b\u3068\u3001\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u4e71\u96d1\u306b\u3059\u308b\u7a7a\u306e\u307e\u305f\u306f\u30c0\u30df\u30fc\u306e\u5b9f\u88c5\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u306fISP\u306e\u9055\u53cd\u3067\u3059\u3002<\/p>\n

            \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u56fa\u6709\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u8a08<\/h3>\n

            \u3053\u308c\u3092\u4fee\u6b63\u3059\u308b\u306b\u306f\u3001\u30ef\u30fc\u30ab\u30fc<\/code> \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u3088\u308a\u5c0f\u3055\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5206\u5272\u3057\u307e\u3059\u3002Workable<\/code> \u30e1\u30bd\u30c3\u30c9\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u3001Eatable<\/code> \u30e1\u30bd\u30c3\u30c9\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u30ed\u30dc\u30c3\u30c8\u306fWorkable<\/code> \u3092\u5b9f\u88c5\u3059\u308b\u306e\u307f\u3067\u3059\u304c\u3001\u4eba\u9593\u306e\u5f93\u696d\u54e1\u306f\u4e21\u65b9\u3092\u5b9f\u88c5\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5951\u7d04\u304c\u660e\u78ba\u3067\u5b9f\u88c5\u8005\u306b\u3068\u3063\u3066\u95a2\u9023\u6027\u306e\u3042\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u5b9f\u969b\u306b\u4f7f\u7528\u3059\u308b\u3082\u306e\u306b\u306e\u307f\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n

            ISP\u306e\u5229\u70b9\uff1a<\/p>\n

              \n
            • \u30af\u30ea\u30fc\u30f3\u306a\u30b3\u30fc\u30c9<\/strong>\uff1a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u7126\u70b9\u3092\u7d5e\u3089\u308c\u3066\u304a\u308a\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u304c\u5bb9\u6613\u3067\u3059\u3002<\/li>\n
            • \u67d4\u8edf\u6027<\/strong>: \u30af\u30e9\u30b9\u306f\u5fc5\u8981\u306a\u52d5\u4f5c\u3060\u3051\u3092\u5b9f\u88c5\u3067\u304d\u308b\u3002<\/li>\n
            • \u4f9d\u5b58\u95a2\u4fc2\u306e\u524a\u6e1b<\/strong>: \u4e00\u65b9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5909\u66f4\u306f\u3001\u5225\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5f71\u97ff\u3057\u306a\u3044\u3002<\/li>\n<\/ul>\n

              \ud83d\udd17 D: \u4f9d\u5b58\u95a2\u4fc2\u306e\u9006\u8ee2\u539f\u5247<\/h2>\n

              \u4f9d\u5b58\u95a2\u4fc2\u306e\u9006\u8ee2\u539f\u5247\uff08DIP\uff09\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u4f4e\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u4f9d\u5b58\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u308b\u3002\u4e21\u65b9\u3068\u3082\u62bd\u8c61\u5316\u306b\u4f9d\u5b58\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u3055\u3089\u306b\u3001\u62bd\u8c61\u5316\u306f\u8a73\u7d30\u306b\u4f9d\u5b58\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u8a73\u7d30\u306f\u62bd\u8c61\u5316\u306b\u4f9d\u5b58\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u30b7\u30b9\u30c6\u30e0\u304c\u5206\u96e2\u3055\u308c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u3084\u5916\u90e8API\u547c\u3073\u51fa\u3057\u3068\u3044\u3063\u305f\u4f4e\u30ec\u30d9\u30eb\u306e\u5b9f\u88c5\u8a73\u7d30\u306e\u5909\u66f4\u304c\u3042\u3063\u3066\u3082\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u304c\u5b89\u5b9a\u3057\u305f\u307e\u307e\u4fdd\u305f\u308c\u308b\u3002 \ud83c\udfd7\ufe0f<\/p>\n

              \u968e\u5c64\u306e\u6253\u7834<\/h3>\n

              \u5f93\u6765\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\uff09\u304c\u4f4e\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\uff09\u3092\u547c\u3073\u51fa\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30cf\u30fc\u30c9\u306a\u4f9d\u5b58\u95a2\u4fc2\u304c\u751f\u3058\u308b\u3002SQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089NoSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5207\u308a\u66ff\u3048\u308b\u5834\u5408\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5909\u66f4\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002DIP\u306f\u3053\u306e\u95a2\u4fc2\u3092\u9006\u8ee2\u3055\u305b\u308b\u3002\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08\u62bd\u8c61\u5316\uff09\u306b\u4f9d\u5b58\u3059\u308b\u3002\u4f4e\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u3002\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u3069\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u4e00\u5207\u77e5\u3089\u306a\u3044\u3002<\/p>\n

              \u5b9f\u8df5\u7684\u306a\u5fdc\u7528<\/h3>\n

              DIP\u3092\u9069\u7528\u3059\u308b\u306b\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u5fc5\u8981\u3068\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u8868\u3059\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3002\u4f8b\u3048\u3070\u3001StorageService<\/code>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3002\u9ad8\u30ec\u30d9\u30eb\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001StorageService<\/code>\u3092\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u307e\u305f\u306f\u30bb\u30c3\u30bf\u30fc\u7d4c\u7531\u3067\u6ce8\u5165\u3059\u308b\u3002\u5b9f\u969b\u306e\u5b9f\u88c5\uff08\u4f8b\uff1aFileStorage<\/code>\u307e\u305f\u306fCloudStorage<\/code>\uff09\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5883\u754c\u3067\u63a5\u7d9a\u3055\u308c\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u4e2d\u306b\u30e2\u30c3\u30af\u5b9f\u88c5\u3092\u6ce8\u5165\u3067\u304d\u308b\u305f\u3081\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u30c6\u30b9\u30c8\u53ef\u80fd\u306b\u306a\u308b\u3002\u307e\u305f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u518d\u66f8\u304d\u3057\u306a\u304f\u3066\u3082\u30a4\u30f3\u30d5\u30e9\u69cb\u6210\u306e\u5909\u66f4\u306b\u9069\u5fdc\u3067\u304d\u308b\u3002 \ud83d\udd0c<\/p>\n

              \ud83d\udcca SOLID\u3068\u975eSOLID\u69cb\u9020\u306e\u6bd4\u8f03<\/h2>\n

              SOLID\u539f\u5247\u306b\u5f93\u3046\u30b3\u30fc\u30c9\u3068\u5f93\u308f\u306a\u3044\u30b3\u30fc\u30c9\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u4fa1\u5024\u304c\u660e\u78ba\u306b\u306a\u308b\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u69cb\u9020\u3068\u4fdd\u5b88\u6027\u306b\u304a\u3051\u308b\u4e3b\u306a\u9055\u3044\u3092\u5f37\u8abf\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
              \u5074\u9762<\/th>\n\u975eSOLID\u69cb\u9020<\/th>\nSOLID\u69cb\u9020<\/th>\n<\/tr>\n<\/thead>\n
              \u5909\u66f4\u53ef\u80fd\u6027<\/strong><\/td>\n\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/td>\n\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u89e6\u3089\u305a\u306b\u65b0\u3057\u3044\u30af\u30e9\u30b9\u3092\u8ffd\u52a0\u3067\u304d\u308b\u3002<\/td>\n<\/tr>\n
              \u7d50\u5408\u5ea6<\/strong><\/td>\n\u30af\u30e9\u30b9\u3068\u5b9f\u88c5\u306e\u9593\u3067\u9ad8\u3044\u7d50\u5408\u5ea6\u304c\u3042\u308b\u3002<\/td>\n\u62bd\u8c61\u5316\u3068\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u901a\u3058\u3066\u4f4e\u3044\u7d50\u5408\u5ea6\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/td>\n<\/tr>\n
              \u30c6\u30b9\u30c8<\/strong><\/td>\n\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u30c6\u30b9\u30c8\u3059\u308b\u305f\u3081\u306b\u5206\u96e2\u3059\u308b\u306e\u304c\u96e3\u3057\u3044\u3002<\/td>\n\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u72ec\u7acb\u3057\u3066\u304a\u308a\u3001\u30e2\u30c3\u30af\u3057\u3084\u3059\u3044\u3002<\/td>\n<\/tr>\n
              \u8907\u96d1\u3055<\/strong><\/td>\n\u30af\u30e9\u30b9\u306f\u3057\u3070\u3057\u3070\u8907\u6570\u306e\u8cac\u4efb\u3092\u542b\u3080\u3002<\/td>\n\u30af\u30e9\u30b9\u306f\u7126\u70b9\u3092\u5f53\u3066\u3066\u304a\u308a\u3001\u5358\u4e00\u306e\u8cac\u4efb\u3092\u6301\u3064\u3002<\/td>\n<\/tr>\n
              \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong><\/td>\n\u8ad6\u7406\u304c\u7d61\u307f\u5408\u3046\u306b\u3064\u308c\u3066\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u304c\u96e3\u3057\u304f\u306a\u308b\u3002<\/td>\n\u65b0\u3057\u3044\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u304c\u5bb9\u6613\u306b\u306a\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \ud83d\udee0\ufe0f \u5b9f\u7528\u7684\u306a\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6226\u7565<\/h2>\n

              \u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092SOLID\u539f\u5247\u306b\u5f93\u3046\u3088\u3046\u306b\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u306f\u3001\u6050\u308d\u3057\u3044\u3082\u306e\u3067\u3042\u308b\u3002\u4e00\u5ea6\u306b\u3059\u3079\u3066\u3092\u66f8\u304d\u76f4\u3059\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u4e0d\u53ef\u80fd\u3067\u3042\u308b\u3002\u6bb5\u968e\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u65b9\u304c\u3057\u3070\u3057\u3070\u52b9\u679c\u7684\u3067\u3042\u308b\u3002\u4ee5\u4e0b\u306f\u3001\u3053\u308c\u3089\u306e\u539f\u5247\u3092\u6bb5\u968e\u7684\u306b\u5c0e\u5165\u3059\u308b\u305f\u3081\u306e\u6226\u7565\u3067\u3042\u308b\uff1a<\/p>\n

                \n
              • SRP\u304b\u3089\u59cb\u3081\u308b<\/strong>\uff1a\u5927\u304d\u3059\u304e\u308b\u3001\u307e\u305f\u306f\u5909\u66f4\u306e\u7406\u7531\u304c\u8907\u6570\u3042\u308b\u30af\u30e9\u30b9\u3092\u7279\u5b9a\u3059\u308b\u3002\u8cac\u4efb\u3092\u5206\u96e2\u3059\u308b\u305f\u3081\u306b\u30e1\u30bd\u30c3\u30c9\u3084\u30af\u30e9\u30b9\u3092\u62bd\u51fa\u3059\u308b\u3002<\/li>\n
              • \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5c0e\u5165\u3059\u308b<\/strong>\uff1a\u5177\u4f53\u7684\u306a\u4f9d\u5b58\u95a2\u4fc2\u304c\u898b\u3048\u308b\u5834\u6240\u3059\u3079\u3066\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5c0e\u5165\u3059\u308b\u6a5f\u4f1a\u3092\u63a2\u308b\u3002\u3053\u308c\u306b\u3088\u308aDIP\u3068OCP\u306e\u571f\u53f0\u304c\u6574\u3046\u3002<\/li>\n
              • \u4f9d\u5b58\u95a2\u4fc2\u3092\u6ce8\u5165\u3059\u308b<\/strong>\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3092\u30af\u30e9\u30b9\u306e\u30ed\u30b8\u30c3\u30af\u304b\u3089\u79fb\u52d5\u3059\u308b\u3002\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3084\u4f9d\u5b58\u95a2\u4fc2\u6ce8\u5165\u30b3\u30f3\u30c6\u30ca\u3092\u4f7f\u3063\u3066\u4f9d\u5b58\u95a2\u4fc2\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/li>\n
              • \u30b5\u30d6\u30af\u30e9\u30b9\u3092\u78ba\u8a8d\u3059\u308b<\/strong>\uff1a\u7d99\u627f\u968e\u5c64\u3092\u78ba\u8a8d\u3059\u308b\u3002\u30b5\u30d6\u30af\u30e9\u30b9\u304c\u89aa\u30af\u30e9\u30b9\u306e\u5951\u7d04\uff08LSP\uff09\u3092\u672c\u5f53\u306b\u9075\u5b88\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n
              • \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5206\u5272\u3059\u308b<\/strong>\uff1a\u30af\u30e9\u30b9\u304c\u591a\u304f\u306e\u672a\u4f7f\u7528\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3064\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u3088\u308a\u5c0f\u3055\u306a\u90e8\u5206\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\uff08ISP\uff09\u3002<\/li>\n<\/ul>\n

                \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306f\u5b8c\u74a7\u3092\u76ee\u6307\u3059\u3082\u306e\u3067\u306f\u306a\u3044\u3002\u30b3\u30fc\u30c9\u3092\u6bb5\u968e\u7684\u306b\u6539\u5584\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u969b\u3001\u4e00\u3064\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u305a\u3064\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3067\u304d\u308b\u3002\u3053\u308c\u306f\u30dc\u30fc\u30a4\u30fb\u30b9\u30ab\u30a6\u30c8\u306e\u6cd5\u5247\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u308b\uff1a\u898b\u3064\u3051\u305f\u30b3\u30fc\u30c9\u3088\u308a\u30af\u30ea\u30fc\u30f3\u306a\u72b6\u614b\u3067\u6b8b\u3059\u3002\ud83d\udd0d<\/p>\n

                \u26a0\ufe0f \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n

                SOLID\u539f\u5247\u306f\u5f37\u529b\u3067\u3042\u308b\u304c\u3001\u8aa4\u3063\u3066\u9069\u7528\u3059\u308b\u3068\u904e\u5270\u8a2d\u8a08\u306b\u3064\u306a\u304c\u308b\u3002\u3053\u308c\u3089\u306e\u539f\u5247\u304c\u9069\u7528\u3055\u308c\u308b\u6587\u8108\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002<\/p>\n

                \u904e\u5270\u306a\u62bd\u8c61\u5316<\/h3>\n

                \u3059\u3079\u3066\u306e\u30af\u30e9\u30b9\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\u3002\u30af\u30e9\u30b9\u304c\u5358\u7d14\u3067\u5909\u66f4\u3055\u308c unlikely \u306a\u5834\u5408\u3001\u539f\u5247\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306f\u4e0d\u8981\u306a\u8907\u96d1\u3055\u3092\u3082\u305f\u3089\u3059\u3002\u5e38\u8b58\u3092\u7528\u3044\u308b\u3053\u3068\u3002\u5909\u5316\u306e\u5fc5\u8981\u304c\u3042\u308b\u3001\u307e\u305f\u306f\u8907\u6570\u306e\u5b9f\u88c5\u304c\u5fc5\u8981\u306a\u5834\u6240\u3067\u306e\u307f\u62bd\u8c61\u5316\u3092\u5c0e\u5165\u3059\u308b\u3002\ud83e\uddd0<\/p>\n

                \u7d99\u627f\u306e\u4e71\u7528<\/h3>\n

                \u7d99\u627f\u306f\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3060\u304c\u3001\u30b3\u30fc\u30c9\u518d\u5229\u7528\u306e\u305f\u3081\u3060\u3051\u306b\u4f7f\u3046\u3079\u304d\u3067\u306f\u306a\u3044\u3002\u5358\u306b\u30e1\u30bd\u30c3\u30c9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u7d99\u627f\u3057\u3066\u3044\u308b\u3068\u611f\u3058\u305f\u3089\u3001\u4ee3\u308f\u308a\u306b\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u3092\u691c\u8a0e\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u6df1\u3044\u7d99\u627f\u968e\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u3084\u30ed\u30b8\u30c3\u30af\u306e\u6d41\u308c\u3092\u7406\u89e3\u3057\u306b\u304f\u304f\u3059\u308b\u3002\u968e\u5c64\u306f\u6d45\u304f\u3001\u610f\u5473\u306e\u3042\u308b\u3082\u306e\u306b\u4fdd\u3064\u3053\u3068\u3002<\/p>\n

                \u30d3\u30b8\u30cd\u30b9\u6587\u8108\u3092\u7121\u8996\u3059\u308b<\/h3>\n

                \u3059\u3079\u3066\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c5\u3064\u306e\u539f\u5247\u3092\u53b3\u5bc6\u306b\u9075\u5b88\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u7d20\u65e9\u3044\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3084\u4e00\u5ea6\u3060\u3051\u4f7f\u3046\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u306f\u3001SOLID\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u30e1\u30ea\u30c3\u30c8\u3092\u4e0a\u56de\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u5e83\u7bc4\u306a\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306b\u6642\u9593\u3092\u6295\u8cc7\u3059\u308b\u524d\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3068\u5b89\u5b9a\u6027\u306e\u8981\u4ef6\u3092\u8a55\u4fa1\u3059\u308b\u3079\u304d\u3067\u3042\u308b\u3002\u2696\ufe0f<\/p>\n

                \ud83c\udf1f \u9577\u671f\u7684\u306a\u5229\u70b9<\/h2>\n

                \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u6210\u9577\u3059\u308b\u306b\u3064\u308c\u3066\u3001SOLID\u539f\u5247\u306b\u6642\u9593\u3092\u6295\u8cc7\u3059\u308b\u3053\u3068\u306f\u5927\u304d\u306a\u30ea\u30bf\u30fc\u30f3\u3092\u3082\u305f\u3089\u3059\u3002\u521d\u671f\u958b\u767a\u306f\u3001\u62bd\u8c61\u5316\u3084\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u8a2d\u8a08\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u9045\u304f\u611f\u3058\u3089\u308c\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u3057\u304b\u3057\u3001\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u304c\u62e1\u5927\u3059\u308b\u306b\u3064\u308c\u3066\u958b\u767a\u901f\u5ea6\u304c\u5411\u4e0a\u3059\u308b\u3002\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u306b\u89e6\u308c\u308b\u306e\u3092\u6050\u308c\u306a\u3044\u305f\u3081\u3001\u6a5f\u80fd\u3092\u3088\u308a\u901f\u304f\u8ffd\u52a0\u3067\u304d\u308b\u3002\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u304c\u5805\u7262\u3067\u3042\u308c\u3070\u3001\u4f55\u304b\u3092\u58ca\u3059\u4e0d\u5b89\u3082\u8584\u308c\u308b\u3002<\/p>\n

                  \n
                • \u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0<\/strong>: \u65b0\u3057\u3044\u958b\u767a\u8005\u306f\u3001\u69cb\u9020\u304c\u8ad6\u7406\u7684\u3067\u4e00\u8cab\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u3088\u308a\u65e9\u304f\u7406\u89e3\u3067\u304d\u308b\u3002<\/li>\n
                • \u30c7\u30d0\u30c3\u30b0<\/strong>: \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7d50\u5408\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u554f\u984c\u3092\u3088\u308a\u7c21\u5358\u306b\u7279\u5b9a\u3067\u304d\u308b\u3002<\/li>\n
                • \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/strong>: \u30b3\u30fc\u30c9\u306e\u79fb\u52d5\u3084\u30ed\u30b8\u30c3\u30af\u306e\u5909\u66f4\u304c\u5b89\u5168\u306a\u64cd\u4f5c\u306b\u306a\u308b\u3002<\/li>\n
                • \u30b3\u30e9\u30dc\u30ec\u30fc\u30b7\u30e7\u30f3<\/strong>: \u30c1\u30fc\u30e0\u306f\u3001\u7af6\u5408\u306e\u30ea\u30b9\u30af\u304c\u5c11\u306a\u3044\u72b6\u614b\u3067\u3001\u7570\u306a\u308b\u30e2\u30b8\u30e5\u30fc\u30eb\u4e0a\u3067\u4f5c\u696d\u3067\u304d\u308b\u3002<\/li>\n<\/ul>\n

                  \u4fdd\u5b88\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u3078\u306e\u9053\u306f\u7d99\u7d9a\u7684\u306a\u3082\u306e\u3067\u3042\u308b\u3002\u6ce8\u610f\u6df1\u3055\u3068\u54c1\u8cea\u3078\u306e\u30b3\u30df\u30c3\u30c8\u30e1\u30f3\u30c8\u304c\u6c42\u3081\u3089\u308c\u308b\u3002\u3053\u308c\u3089\u306e\u539f\u5247\u3092\u5185\u9762\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u4eca\u65e5\u6a5f\u80fd\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u6570\u5e74\u5148\u307e\u3067\u5b9f\u7528\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3067\u304d\u308b\u3002\u4eca\u65e5\u66f8\u304f\u30b3\u30fc\u30c9\u306f\u3001\u660e\u65e5\u306e\u30c1\u30fc\u30e0\u306b\u6b8b\u3059\u907a\u7523\u3067\u3042\u308b\u3002\u305d\u306e\u4fa1\u5024\u3092\u5927\u5207\u306b\u3057\u3088\u3046\u3002\ud83c\udf31<\/p>\n

                  \ud83d\udcdd \u5b9f\u88c5\u306e\u8981\u7d04<\/h2>\n

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