{"id":6257,"date":"2026-02-04T09:13:59","date_gmt":"2026-02-04T01:13:59","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/case-study-streamlining-the-food-ordering-system-with-dfd\/"},"modified":"2026-02-04T09:13:59","modified_gmt":"2026-02-04T01:13:59","slug":"case-study-streamlining-the-food-ordering-system-with-dfd","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/case-study-streamlining-the-food-ordering-system-with-dfd\/","title":{"rendered":"\u4e8b\u4f8b\u7814\u7a76\uff1aDFD\u3092\u6d3b\u7528\u3057\u305f\u98df\u54c1\u6ce8\u6587\u30b7\u30b9\u30c6\u30e0\u306e\u6700\u9069\u5316"},"content":{"rendered":"<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u56f3\uff08DFD\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u56f3\uff08DFD\uff09\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u3092\u53ef\u8996\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u56f3\u5f0f\u8868\u73fe\u3067\u3059\u3002\u30c7\u30fc\u30bf\u306e\u767a\u4fe1\u5143\u3001\u53d7\u4fe1\u5148\u3001\u304a\u3088\u3073\u30d7\u30ed\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u4fdd\u7ba1\u6240\u3001\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u3067\u306e\u30c7\u30fc\u30bf\u306e\u79fb\u52d5\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u8981\u3059\u308b\u306b\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u5165\u529b\u3068\u51fa\u529b\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/span><\/p>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u306a\u305cDFD\u3092\u4f7f\u7528\u3059\u308b\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u660e\u78ba\u3055\u3068\u7406\u89e3\u306e\u5411\u4e0a<\/strong>\uff1aDFD\u306f\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306e\u660e\u78ba\u3067\u8996\u899a\u7684\u306a\u8868\u73fe\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u30b7\u30b9\u30c6\u30e0\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u975e\u52b9\u7387\u306e\u7279\u5b9a<\/strong>\uff1a\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u7d44\u7e54\u306f\u30d7\u30ed\u30bb\u30b9\u306b\u304a\u3051\u308b\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3001\u91cd\u8907\u3001\u975e\u52b9\u7387\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5411\u4e0a<\/strong>\uff1aDFD\u306f\u958b\u767a\u8005\u3001\u30a2\u30ca\u30ea\u30b9\u30c8\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u9593\u306e\u5171\u901a\u8a00\u8a9e\u3068\u306a\u308a\u3001\u3088\u308a\u826f\u3044\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u5354\u529b\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30b7\u30b9\u30c6\u30e0\u5206\u6790\u3068\u8a2d\u8a08<\/strong>\uff1aDFD\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5206\u6790\u3068\u8a2d\u8a08\u306b\u4e0d\u53ef\u6b20\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u79fb\u52d5\u306e\u3059\u3079\u3066\u306e\u5074\u9762\u304c\u8003\u616e\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316<\/strong>\uff1aDFD\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u8cb4\u91cd\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u3001\u5c06\u6765\u306e\u53c2\u7167\u3084\u4fdd\u5b88\u4f5c\u696d\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">DFD\u306e\u4f5c\u6210\u65b9\u6cd5<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30d7\u30ed\u30bb\u30b9\u306e\u7279\u5b9a<\/strong>\uff1a\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u4e3b\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u5404\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001\u6ce8\u6587\u51e6\u7406\u3084\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210\u306a\u3069\u3001\u7279\u5b9a\u306e\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u7279\u5b9a<\/strong>\uff1a\u30b7\u30b9\u30c6\u30e0\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff08\u4f8b\uff1a\u9867\u5ba2\u3001\u4ed5\u5165\u5148\u3001\u4ed6\u306e\u30b7\u30b9\u30c6\u30e0\u306a\u3069\uff09\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30c7\u30fc\u30bf\u4fdd\u7ba1\u6240\u306e\u5b9a\u7fa9<\/strong>\uff1a\u30b7\u30b9\u30c6\u30e0\u5185\u3067\u306e\u30c7\u30fc\u30bf\u306e\u4fdd\u7ba1\u5834\u6240\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30d5\u30a1\u30a4\u30eb\u3001\u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u30ea\u30dd\u30b8\u30c8\u30ea\u304c\u8a72\u5f53\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306e\u30de\u30c3\u30d4\u30f3\u30b0<\/strong>\uff1a\u30d7\u30ed\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u4fdd\u7ba1\u6240\u3001\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u3067\u306e\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u306f\u77e2\u5370\u3067\u8868\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u56f3\u306e\u4f5c\u6210<\/strong>\uff1a\u6a19\u6e96\u306eDFD\u8a18\u53f7\u3092\u4f7f\u7528\u3057\u3066\u56f3\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u30d7\u30ed\u30bb\u30b9\u306f\u901a\u5e38\u3001\u5186\u307e\u305f\u306f\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306f\u77e2\u5370\u3001\u30c7\u30fc\u30bf\u4fdd\u7ba1\u6240\u306f\u958b\u53e3\u90e8\u306e\u3042\u308b\u9577\u65b9\u5f62\u3001\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u56db\u89d2\u307e\u305f\u306f\u6955\u5186\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u4f8b\u793a\u3055\u308c\u308b\u8a18\u53f7<\/h3>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30d7\u30ed\u30bb\u30b9<\/strong>\uff1a\u5186\u307e\u305f\u306f\u89d2\u4e38\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc<\/strong>\uff1a\u77e2\u5370\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2<\/strong>: \u958b\u304b\u308c\u305f\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/strong>: \u56db\u89d2\u5f62\u307e\u305f\u306f\u6955\u5186\u3067\u8868\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">DFD\u3092\u63cf\u304f\u624b\u9806<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\u304b\u3089\u59cb\u3081\u308b<\/strong>: \u6700\u4e0a\u4f4d\u30ec\u30d9\u30eb\uff08\u30ec\u30d9\u30eb0 DFD\uff09\u304b\u3089\u59cb\u3081\u3001\u30b7\u30b9\u30c6\u30e0\u3068\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u793a\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u4f4e\u30ec\u30d9\u30eb\u306b\u5206\u89e3\u3059\u308b<\/strong>: \u30b7\u30b9\u30c6\u30e0\u3092\u3088\u308a\u8a73\u7d30\u306aDFD\uff08\u30ec\u30d9\u30eb1\u3001\u30ec\u30d9\u30eb2\u306a\u3069\uff09\u306b\u5206\u89e3\u3057\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306e\u6df1\u3044\u7406\u89e3\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u3059\u3079\u3066\u3092\u660e\u78ba\u306b\u30e9\u30d9\u30eb\u3059\u308b<\/strong>: \u3059\u3079\u3066\u306e\u30d7\u30ed\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3001\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3001\u304a\u3088\u3073\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u660e\u78ba\u306b\u30e9\u30d9\u30eb\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3068\u691c\u8a3c\u3059\u308b<\/strong>: \u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3068DFD\u3092\u78ba\u8a8d\u3057\u3001\u6b63\u78ba\u6027\u3068\u5b8c\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h2>DFD\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3<\/h2>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">DFD\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u7406\u89e3\u3057\u6700\u9069\u5316\u3059\u308b\u4e0a\u3067\u5927\u304d\u306a\u5909\u5316\u3092\u3082\u305f\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3055\u3063\u305d\u304f\u53d6\u308a\u7d44\u307f\u3001\u30de\u30c3\u30d4\u30f3\u30b0\u3092\u59cb\u3081\u3088\u3046\uff01\uff1f<\/span><\/p>\n<h4 class=\"text-base-strong\">\u80cc\u666f<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\uff08DFD\uff09\u3068\u305d\u306e\u30d5\u30fc\u30c9\u30aa\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5fdc\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u63a2\u6c42\u3059\u308b\u3002\u3053\u306e\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u30c7\u30fc\u30bf\u79fb\u52d5\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30b9\u30c8\u30e9\u30f3\u306e\u6ce8\u6587\u30d7\u30ed\u30bb\u30b9\u306e\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3002<\/span><\/p>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u4eba\u6c17\u306e\u3042\u308b\u90fd\u5e02\u578b\u30ec\u30b9\u30c8\u30e9\u30f3\u3067\u3042\u308bCityBite\u306f\u3001\u6ce8\u6587\u7ba1\u7406\u3001\u5728\u5eab\u7ba1\u7406\u3001\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210\u306e\u8ab2\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u305f\u3002\u904b\u7528\u306e\u52b9\u7387\u5316\u3068\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u306e\u5411\u4e0a\u3092\u76ee\u6307\u3057\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\uff08DFD\uff09\u3092\u7528\u3044\u3066\u30d5\u30fc\u30c9\u30aa\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u5206\u6790\u3068\u518d\u8a2d\u8a08\u3092\u6c7a\u5b9a\u3057\u305f\u3002<\/span><\/p>\n<p aria-atomic=\"true\" aria-live=\"polite\"><img alt=\"Chapter 8. Data Flow Diagram - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2024\/10\/img_6704e2638dd43.png\"\/><\/p>\n<h4 class=\"text-base-strong\">\u76ee\u7684<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u76ee\u7684\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u7570\u306a\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u30d7\u30ed\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u9593\u3067\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u660e\u78ba\u306b\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3042\u3063\u305f\u3002\u3053\u306e\u53ef\u8996\u5316\u306b\u3088\u308a\u3001\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3084\u6539\u5584\u3059\u3079\u304d\u9818\u57df\u3092\u7279\u5b9a\u3059\u308b\u624b\u52a9\u3051\u3068\u306a\u308b\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">\u30b7\u30b9\u30c6\u30e0\u6982\u8981<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">CityBite\u306e\u30d5\u30fc\u30c9\u30aa\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u9867\u5ba2\u3001\u30ad\u30c3\u30c1\u30f3\u3001\u4ed5\u5165\u5148\u3001\u30ec\u30b9\u30c8\u30e9\u30f3\u7d4c\u55b6\u9663\u3068\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u542b\u3093\u3067\u3044\u308b\u3002DFD\u306f\u3053\u308c\u3089\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u6349\u3048\u3001\u30c7\u30fc\u30bf\u79fb\u52d5\u306e\u5305\u62ec\u7684\u306a\u8996\u70b9\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">DFD\u306e\u69cb\u6210\u8981\u7d20<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>1. \u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u9867\u5ba2<\/strong>: \u6ce8\u6587\u3092\u884c\u3044\u3001\u8acb\u6c42\u66f8\u3092\u53d7\u3051\u53d6\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u4ed5\u5165\u5148<\/strong>: \u30ec\u30b9\u30c8\u30e9\u30f3\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u5728\u5eab\u6ce8\u6587\u3092\u53d7\u3051\u53d6\u308b\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>2. \u30d7\u30ed\u30bb\u30b9\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u98df\u4e8b\u6ce8\u6587\uff080.1\uff09<\/strong>: \u9867\u5ba2\u306e\u6ce8\u6587\u3092\u51e6\u7406\u3057\u3001\u53a8\u623f\u306b\u9001\u4fe1\u3059\u308b\u3002\u307e\u305f\u3001\u9867\u5ba2\u5411\u3051\u306e\u8acb\u6c42\u66f8\u3092\u751f\u6210\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30ec\u30dd\u30fc\u30c8\u306e\u751f\u6210 (0.2)<\/strong>: \u5728\u5eab\u306e\u8a73\u7d30\u306b\u57fa\u3065\u3044\u3066\u30ec\u30dd\u30fc\u30c8\u3092\u751f\u6210\u3057\u3001\u7ba1\u7406\u8005\u306b\u9001\u4fe1\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u306e\u767a\u6ce8 (0.3)<\/strong>: \u5728\u5eab\u306e\u8a73\u7d30\u306b\u57fa\u3065\u3044\u3066\u3001\u4ed5\u5165\u5148\u306b\u5728\u5eab\u306e\u767a\u6ce8\u3092\u884c\u3046\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>3. \u30c7\u30fc\u30bf\u30b9\u30c8\u30a2:<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab<\/strong>: \u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u4f7f\u7528\u3055\u308c\u308b\u5728\u5eab\u306e\u8a73\u7d30\u3092\u4fdd\u6301\u3059\u308b\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>4. \u30c7\u30fc\u30bf\u30d5\u30ed\u30fc:<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6ce8\u6587<\/strong>: \u9867\u5ba2\u304b\u3089\u300c\u6ce8\u6587\u3059\u308b\u300d\u30d7\u30ed\u30bb\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8acb\u6c42\u66f8<\/strong>: \u300c\u6ce8\u6587\u3059\u308b\u300d\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u9867\u5ba2\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6ce8\u6587<\/strong>: \u300c\u6ce8\u6587\u3059\u308b\u300d\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u53a8\u623f\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u306e\u8a73\u7d30<\/strong>: \u300c\u6ce8\u6587\u3059\u308b\u300d\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u300c\u5728\u5eab\u300d\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u306e\u8a73\u7d30<\/strong>: \u300c\u5728\u5eab\u300d\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u304b\u3089\u300c\u30ec\u30dd\u30fc\u30c8\u306e\u751f\u6210\u300d\u30d7\u30ed\u30bb\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u30ec\u30dd\u30fc\u30c8<\/strong>: \u300c\u30ec\u30dd\u30fc\u30c8\u306e\u751f\u6210\u300d\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u7ba1\u7406\u8005\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u306e\u8a73\u7d30<\/strong>: \u300c\u5728\u5eab\u300d\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u304b\u3089\u300c\u5728\u5eab\u306e\u767a\u6ce8\u300d\u30d7\u30ed\u30bb\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u306e\u767a\u6ce8<\/strong>: \u300c\u5728\u5eab\u306e\u767a\u6ce8\u300d\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u4ed5\u5165\u5148\u306b\u9001\u4fe1\u3055\u308c\u308b\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h4 class=\"text-base-strong\">\u753b\u50cf\u306e\u7c21\u5358\u306a\u8aac\u660e<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u3053\u306e\u753b\u50cf\u306f\u3001CityBite\u306e\u98df\u54c1\u6ce8\u6587\u30b7\u30b9\u30c6\u30e0\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\uff08DFD\uff09\u3067\u3042\u308b\u3002\u30c7\u30fc\u30bf\u304c\u7570\u306a\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u30d7\u30ed\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306e\u9593\u3067\u3069\u306e\u3088\u3046\u306b\u6d41\u308c\u3066\u3044\u308b\u304b\u3092\u8996\u899a\u7684\u306b\u793a\u3057\u3066\u3044\u308b\u3002<\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u9867\u5ba2<\/strong>\u6ce8\u6587\u3092\u63d0\u51fa\u3057\u3001\u305d\u308c\u3089\u306f<strong>\u6ce8\u6587\u3059\u308b<\/strong>\u30d7\u30ed\u30bb\u30b9\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u30ad\u30c3\u30c1\u30f3\u3068\u9023\u643a\u3057\u3001\u9867\u5ba2\u306b\u5bfe\u3057\u3066\u8acb\u6c42\u66f8\u3092\u767a\u884c\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u8a73\u7d30<\/strong>\u306f\u66f4\u65b0\u3055\u308c\u4fdd\u5b58\u3055\u308c\u3001\u5728\u5eab\u7ba1\u7406\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u305d\u306e<strong>\u30ec\u30dd\u30fc\u30c8\u306e\u4f5c\u6210<\/strong>\u30d7\u30ed\u30bb\u30b9\u306f\u3053\u308c\u3089\u306e\u8a73\u7d30\u3092\u4f7f\u7528\u3057\u3066\u7d4c\u55b6\u5411\u3051\u30ec\u30dd\u30fc\u30c8\u3092\u4f5c\u6210\u3057\u3001\u610f\u601d\u6c7a\u5b9a\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5728\u5eab\u6ce8\u6587<\/strong>\u306f\u4ed5\u5165\u5148\u306b\u767a\u6ce8\u3055\u308c\u3001\u5728\u5eab\u3092\u88dc\u5145\u3059\u308b\u3053\u3068\u3067\u30b9\u30e0\u30fc\u30ba\u306a\u904b\u7528\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h4 class=\"text-base-strong\">\u5b9f\u88c5\u306e\u6210\u679c<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">DFD\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001CityBite\u306f\u98df\u54c1\u6ce8\u6587\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u975e\u52b9\u7387\u3092\u7279\u5b9a\u3067\u304d\u307e\u3057\u305f\u3002\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u696d\u52d9\u3092\u6700\u9069\u5316\u3057\u3001\u6ce8\u6587\u51e6\u7406\u6642\u9593\u3092\u77ed\u7e2e\u3001\u5728\u5eab\u7ba1\u7406\u3092\u6539\u5584\u3057\u3001\u9867\u5ba2\u30b5\u30fc\u30d3\u30b9\u3068\u904b\u7528\u52b9\u7387\u306e\u5411\u4e0a\u3092\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">\u7d50\u8ad6<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u3053\u306e\u4e8b\u4f8b\u306f\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3092\u7528\u3044\u3066\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u53ef\u8996\u5316\u3057\u5206\u6790\u3059\u308b\u3053\u3068\u306e\u91cd\u8981\u6027\u3092\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059\u3002CityBite\u306b\u3068\u3063\u3066\u3001DFD\u306f\u98df\u54c1\u6ce8\u6587\u30d7\u30ed\u30bb\u30b9\u306e\u5927\u5e45\u306a\u6539\u5584\u306b\u3064\u306a\u304c\u308b\u8cb4\u91cd\u306a\u6d1e\u5bdf\u3092\u63d0\u4f9b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u624b\u6cd5\u3092\u6d3b\u7528\u3057\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u5206\u6790\u3068\u8a2d\u8a08\u306e\u53d6\u308a\u7d44\u307f\u3092\u3055\u3089\u306b\u9ad8\u3081\u307e\u3057\u3087\u3046\u3002\uff1f<\/span><\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\">\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3068\u306f\u4f55\u304b\uff1f<\/a><\/p>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/logical-vs-physical-data-flow-diagrams\/\">\u8ad6\u7406\u7684\u3068\u7269\u7406\u7684\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u56f3\uff08DFD\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f 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\u30d7\u30ed\u30bb\u30b9\uff1a\u5186\u307e\u305f\u306f\u89d2\u4e38\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\uff1a\u77e2\u5370\u3067\u8868\u3055\u308c\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30b9\u30c8\u30a2: \u958b\u304b\u308c\u305f\u9577\u65b9\u5f62\u3067\u8868\u3055\u308c\u308b\u3002 \u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3: \u56db\u89d2\u5f62\u307e\u305f\u306f\u6955\u5186\u3067\u8868\u3055\u308c\u308b\u3002 DFD\u3092\u63cf\u304f\u624b\u9806 \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\u304b\u3089\u59cb\u3081\u308b: \u6700\u4e0a\u4f4d\u30ec\u30d9\u30eb\uff08\u30ec\u30d9\u30eb0 DFD\uff09\u304b\u3089\u59cb\u3081\u3001\u30b7\u30b9\u30c6<a href=\"https:\/\/guides.visual-paradigm.com\/ja\/case-study-streamlining-the-food-ordering-system-with-dfd\/\" rel=\"bookmark\"><span 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