{"id":1787,"date":"2026-03-31T14:07:44","date_gmt":"2026-03-31T14:07:44","guid":{"rendered":"https:\/\/www.viz-note.com\/ja\/data-flow-diagrams-explained-definitions-structures\/"},"modified":"2026-03-31T14:07:44","modified_gmt":"2026-03-31T14:07:44","slug":"data-flow-diagrams-explained-definitions-structures","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/ja\/data-flow-diagrams-explained-definitions-structures\/","title":{"rendered":"\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306e\u89e3\u8aac\uff1a\u5b9a\u7fa9\u3068\u69cb\u9020"},"content":{"rendered":"<p>\u30b7\u30b9\u30c6\u30e0\u5206\u6790\u304a\u3088\u3073\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u306e\u5206\u91ce\u306b\u304a\u3044\u3066\u3001\u60c5\u5831\u306e\u6d41\u308c\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u306f\u6975\u3081\u3066\u91cd\u8981\u3067\u3042\u308b\u3002\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\uff08DFD\uff09\u306f\u3001\u60c5\u5831\u30b7\u30b9\u30c6\u30e0\u5185\u3092\u6d41\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u3092\u56f3\u5f0f\u5316\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u3002\u5236\u5fa1\u30d5\u30ed\u30fc\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u30d5\u30ed\u30fc\u30c1\u30e3\u30fc\u30c8\u3068\u306f\u7570\u306a\u308a\u3001DFD\u306f\u30c7\u30fc\u30bf\u306e\u5165\u529b\u3001\u51fa\u529b\u3001\u304a\u3088\u3073\u4fdd\u5b58\u306b\u306e\u307f\u7126\u70b9\u3092\u5f53\u3066\u308b\u3002\u3053\u306e\u9055\u3044\u306f\u3001\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u65b9\u6cd5\u306e\u624b\u7d9a\u304d\u7684\u8ad6\u7406\u306b\u5dfb\u304d\u8fbc\u307e\u308c\u308b\u3053\u3068\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u6271\u3046\u30c7\u30fc\u30bf\u306e\u5185\u5bb9\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3084\u30a2\u30ca\u30ea\u30b9\u30c8\u306b\u3068\u3063\u3066\u3001\u6975\u3081\u3066\u91cd\u8981\u3067\u3042\u308b\u3002<\/p>\n<p>1970\u5e74\u4ee3\u306b\u958b\u767a\u3055\u308c\u305fDFD\u306f\u3001\u8981\u4ef6\u5de5\u5b66\u306b\u304a\u3051\u308b\u57fa\u76e4\u7684\u306a\u6280\u8853\u3068\u3057\u3066\u4eca\u3082\u306a\u304a\u91cd\u8981\u3067\u3042\u308b\u3002DFD\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u9ad8\u30ec\u30d9\u30eb\u306a\u8996\u70b9\u3092\u63d0\u4f9b\u3057\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u3059\u3079\u3066\u306e\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u5165\u529b\u304c\u6355\u6349\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3001\u3059\u3079\u3066\u306e\u5fc5\u8981\u306a\u51fa\u529b\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u691c\u8a3c\u3067\u304d\u308b\u3002\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u6271\u3044\u3084\u3059\u3044\u69cb\u6210\u8981\u7d20\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u3001\u6280\u8853\u30c1\u30fc\u30e0\u3068\u30d3\u30b8\u30cd\u30b9\u30e6\u30fc\u30b6\u30fc\u306e\u9593\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4fc3\u9032\u3059\u308b\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u6b63\u78ba\u306a\u56f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u69cb\u9020\u7684\u8981\u7d20\u3001\u8868\u8a18\u6cd5\u306e\u9055\u3044\u3001\u304a\u3088\u3073\u624b\u6cd5\u4e0a\u306e\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u8a73\u8ff0\u3059\u308b\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Line art infographic explaining Data Flow Diagrams (DFD) showing four core components: external entities, processes, data stores, and data flows; hierarchical diagram levels from Context to Level 1; notation comparison between Yourdon &amp; DeMarco and Gane &amp; Sarson styles; key modeling rules including conservation of data and balancing; common pitfalls to avoid; designed for system analysis and software engineering education\" decoding=\"async\" src=\"https:\/\/www.viz-note.com\/wp-content\/uploads\/2026\/03\/data-flow-diagrams-explained-infographic-line-art-16x9-1.jpg\"\/><\/figure>\n<\/div>\n<h2>\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306e\u6838\u5fc3\u7684\u306a\u69cb\u6210\u8981\u7d20 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30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306e\u7a2e\u985e 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\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\uff08\u30ec\u30d9\u30eb0\uff09<\/h3>\n<p>\u3053\u308c\u306f\u6700\u3082\u9ad8\u3044\u62bd\u8c61\u5ea6\u3067\u3042\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u30921\u3064\u306e\u30d7\u30ed\u30bb\u30b9\u30d0\u30d6\u30eb\u3068\u3057\u3066\u63cf\u5199\u3059\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u3068\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u306e\u95a2\u4fc2\u3092\u793a\u3059\u3002\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u5185\u90e8\u30d7\u30ed\u30bb\u30b9\u3084\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306f\u8868\u793a\u3055\u308c\u306a\u3044\u3002\u76ee\u7684\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5883\u754c\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u3053\u306e\u56f3\u306f\u3001\u300c\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u5916\u90e8\u4e16\u754c\u306b\u5bfe\u3057\u3066\u4f55\u3092\u5b9f\u884c\u3059\u308b\u306e\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u3044\u306b\u7b54\u3048\u308b\u3002<\/p>\n<h3>2. \u30ec\u30d9\u30eb0\u56f3\uff08\u56f30\uff09<\/h3>\n<p>\u30b3\u30f3\u30bb\u30d7\u30c8\u30e2\u30c7\u30eb\u3068\u3082\u547c\u3070\u308c\u308b\u3053\u306e\u56f3\u3067\u306f\u3001\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\u306e\u5358\u4e00\u30d7\u30ed\u30bb\u30b9\u3092\u4e3b\u8981\u306a\u30b5\u30d6\u30d7\u30ed\u30bb\u30b9\u306b\u5206\u89e3\u3059\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u4e3b\u8981\u6a5f\u80fd\u306e\u30de\u30c3\u30d7\u3092\u63d0\u4f9b\u3059\u308b\u3002\u4e3b\u8981\u306a\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u304c\u4e3b\u306a\u30d7\u30ed\u30bb\u30b9\u3068\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3001\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u3069\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3059\u3002\u3053\u308c\u306f\u8a73\u7d30\u8a2d\u8a08\u306e\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n<h3>3. \u30ec\u30d9\u30eb1\u3068\u5206\u89e3<\/h3>\n<p>\u5206\u6790\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u30ec\u30d9\u30eb0\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3055\u3089\u306b\u30ec\u30d9\u30eb1\u306e\u56f3\u306b\u5206\u89e3\u3055\u308c\u308b\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u304c\u76f4\u63a5\u5b9f\u88c5\u53ef\u80fd\u306a\u307b\u3069\u5358\u7d14\u306b\u306a\u308b\u307e\u3067\u7e70\u308a\u8fd4\u3055\u308c\u308b\u3002\u5404\u5b50\u56f3\u306f\u89aa\u56f3\u3068\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u3089\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3064\u307e\u308a\u3001\u89aa\u56f3\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u5165\u529b\u3068\u51fa\u529b\u306f\u3001\u5c55\u958b\u3055\u308c\u305f\u30d7\u30ed\u30bb\u30b9\u3092\u542b\u3080\u5b50\u56f3\u306e\u5165\u529b\u3068\u51fa\u529b\u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n<h2>\u8868\u8a18\u6cd5\u306e\u6a19\u6e96\u6bd4\u8f03 \ud83d\udcd0<\/h2>\n<p>DFD\u3092\u63cf\u304f\u305f\u3081\u306e\u5358\u4e00\u306e\u666e\u904d\u7684\u306a\u6a19\u6e96\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u696d\u754c\u3092\u652f\u914d\u3059\u308b2\u3064\u306e\u4e3b\u8981\u306a\u6d41\u6d3e\u304c\u3042\u308b\u3002\u4e21\u8005\u3068\u3082\u540c\u3058\u8ad6\u7406\u60c5\u5831\u3092\u4f1d\u3048\u308b\u304c\u3001\u69cb\u6210\u8981\u7d20\u3092\u8868\u3059\u305f\u3081\u306b\u7570\u306a\u308b\u5f62\u72b6\u3092\u4f7f\u7528\u3059\u308b\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5185\u306e\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u305f\u3081\u306b\u306f\u30011\u3064\u306e\u6a19\u6e96\u3092\u9078\u629e\u3057\u3001\u305d\u308c\u3092\u5fb9\u5e95\u7684\u306b\u5b88\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u69cb\u6210\u8981\u7d20<\/th>\n<th>Yourdon &amp; DeMarco\u8868\u8a18\u6cd5<\/th>\n<th>Gane &amp; Sarson\u8868\u8a18\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30d7\u30ed\u30bb\u30b9<\/strong><\/td>\n<td>\u5186\u307e\u305f\u306f\u30e9\u30a6\u30f3\u30c9\u77e9\u5f62<\/td>\n<td>\u30e9\u30a6\u30f3\u30c9\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2<\/strong><\/td>\n<td>\u5e73\u884c\u306a\u6c34\u5e73\u7dda\u304c2\u672c<\/td>\n<td>\u958b\u53e3\u306e\u3042\u308b\u9577\u65b9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/strong><\/td>\n<td>\u9577\u65b9\u5f62<\/td>\n<td>\u9577\u65b9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc<\/strong><\/td>\n<td>\u66f2\u304c\u3063\u305f\u307e\u305f\u306f\u76f4\u7dda\u306e\u77e2\u5370<\/td>\n<td>\u76f4\u7dda\u306e\u77e2\u5370<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6ce8\u91c8<\/strong><\/td>\n<td>\u30d5\u30ed\u30fc\u306e\u8fd1\u304f\u306e\u30c6\u30ad\u30b9\u30c8<\/td>\n<td>\u30d5\u30ed\u30fc\u306e\u8fd1\u304f\u306e\u30c6\u30ad\u30b9\u30c8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5f62\u72b6\u306f\u7570\u306a\u3063\u3066\u3082\u3001\u63a5\u7d9a\u3092\u898f\u5b9a\u3059\u308b\u30eb\u30fc\u30eb\u306f\u540c\u4e00\u3067\u3042\u308b\u3002Yourdon &amp; DeMarco\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u53e4\u3044\u30ec\u30ac\u30b7\u30fc\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u3088\u304f\u597d\u307e\u308c\u308b\u304c\u3001Gane &amp; Sarson\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u3088\u308a\u6d17\u7df4\u3055\u308c\u305f\u9577\u65b9\u5f62\u306e\u7f8e\u5b66\u304b\u3089\u3001\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u983b\u7e41\u306b\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<h2>\u8ad6\u7406\u7684\u3068\u7269\u7406\u7684\u306e\u9055\u3044 \ud83d\udd04<\/h2>\n<p>DFD\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u6982\u5ff5\u306f\u3001\u8ad6\u7406\u8a2d\u8a08\u3068\u7269\u7406\u8a2d\u8a08\u306e\u5206\u96e2\u3067\u3042\u308b\u3002\u3053\u306e\u533a\u5225\u306b\u3088\u308a\u3001\u57fa\u76e4\u6280\u8853\u304c\u5909\u66f4\u3055\u308c\u3066\u3082\u30e2\u30c7\u30eb\u304c\u6709\u52b9\u3067\u3042\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8ad6\u7406\u7684DFD\uff1a<\/strong> \u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u304c\u4f55\u3092\u3059\u308b\u304b\u3092\u8a18\u8ff0\u3059\u308b\u304c\u3001\u305d\u306e\u65b9\u6cd5\u306f\u8a18\u8ff0\u3057\u306a\u3044\u3002\u8ad6\u7406\u56f3\u3067\u306f\u3001\u300c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u300d\u306f\u3001SQL\u3001NoSQL\u3001\u307e\u305f\u306f\u30d5\u30e9\u30c3\u30c8\u30d5\u30a1\u30a4\u30eb\u3067\u3042\u308b\u304b\u3092\u6307\u5b9a\u305b\u305a\u306b\u3001\u4e00\u822c\u7684\u306b\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u300c\u30d7\u30ed\u30bb\u30b9\u300d\u306f\u3001\u627f\u8a8d\u304c\u4eba\u9593\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3001\u307e\u305f\u306fAI\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u308b\u304b\u306b\u95a2\u308f\u3089\u305a\u3001\u300c\u30ed\u30fc\u30f3\u627f\u8a8d\u300d\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<li><strong>\u7269\u7406\u7684DFD\uff1a<\/strong> \u5b9f\u88c5\u306e\u8a73\u7d30\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u304c\u3069\u306e\u3088\u3046\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u8a18\u8ff0\u3059\u308b\u3002\u3053\u3053\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306f\u300cServer A\u306eOracle\u30c6\u30fc\u30d6\u30eb\u300d\u3068\u3057\u3066\u6307\u5b9a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u30d7\u30ed\u30bb\u30b9\u306f\u300cJava Servlet\u306b\u3088\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u51e6\u7406\u300d\u3068\u306a\u308b\u3002\u7269\u7406\u56f3\u306f\u3001\u958b\u767a\u8005\u304c\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u6bb5\u968e\u3067\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30ec\u30d9\u30eb\u30921\u3064\u306e\u56f3\u306b\u6df7\u5728\u3055\u305b\u308b\u3068\u6df7\u4e71\u3092\u62db\u304f\u3002\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306e\u30ec\u30d3\u30e5\u30fc\u7528\u306b\u8ad6\u7406\u30d3\u30e5\u30fc\u3092\u7dad\u6301\u3057\u3001\u6280\u8853\u7684\u5b9f\u88c5\u7528\u306b\u7269\u7406\u30d3\u30e5\u30fc\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3042\u308b\u3002<\/p>\n<h2>DFD\u306e\u4f5c\u6210\u30eb\u30fc\u30eb \u2699\ufe0f<\/h2>\n<p>\u56f3\u3092\u63cf\u304f\u3053\u3068\u306f\u5358\u306b\u5f62\u72b6\u3092\u63cf\u304f\u3053\u3068\u3067\u306f\u306a\u3044\u3002\u53b3\u5bc6\u306a\u8ad6\u7406\u30eb\u30fc\u30eb\u306b\u5f93\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u30eb\u30fc\u30eb\u3092\u9055\u53cd\u3059\u308b\u3068\u3001\u56f3\u306f\u6280\u8853\u7684\u306b\u7121\u52b9\u3068\u306a\u308a\u3001\u5206\u6790\u306b\u5f79\u7acb\u305f\u306a\u304f\u306a\u308b\u3002<\/p>\n<h3>1. \u30c7\u30fc\u30bf\u306e\u4fdd\u5b58\u5247<\/h3>\n<p>\u30c7\u30fc\u30bf\u306f\u30d7\u30ed\u30bb\u30b9\u5185\u3067\u4f5c\u6210\u307e\u305f\u306f\u7834\u58ca\u3067\u304d\u306a\u3044\u3002\u30c7\u30fc\u30bf\u304c\u30d7\u30ed\u30bb\u30b9\u306b\u5165\u308c\u3070\u3001\u305d\u306e\u30c7\u30fc\u30bf\u306f\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u51fa\u308b\u304b\u3001\u4fdd\u5b58\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u5165\u529b\u3055\u308c\u3066\u3044\u306a\u3044\u30c7\u30fc\u30bf\u3092\u51fa\u529b\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u304c\u3001\u4ed6\u306e\u5165\u529b\u304b\u3089\u5c0e\u51fa\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u4f8b\u5916\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u304a\u3051\u308b\u300c\u5947\u8de1\u300d\u3092\u9632\u3050\u3002<\/p>\n<h3>2. \u540d\u524d\u4ed8\u3051\u306e\u898f\u5247<\/h3>\n<p>\u3059\u3079\u3066\u306e\u8981\u7d20\u306b\u306f\u4e00\u610f\u306e\u540d\u524d\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306f\u540d\u8a5e\uff08\u4f8b\uff1a\u300c\u8acb\u6c42\u66f8\u300d\uff09\u3068\u3059\u308b\u3002\u30d7\u30ed\u30bb\u30b9\u306f\u52d5\u8a5e\uff0b\u540d\u8a5e\u306e\u8868\u73fe\uff08\u4f8b\uff1a\u300c\u8acb\u6c42\u66f8\u51e6\u7406\u300d\uff09\u3068\u3059\u308b\u3002\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u306f\u8907\u6570\u5f62\u306e\u540d\u8a5e\uff08\u4f8b\uff1a\u300c\u8acb\u6c42\u66f8\u300d\uff09\u3068\u3059\u308b\u3002\u540d\u524d\u306e\u4e00\u8cab\u6027\u306b\u3088\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u3068\u7406\u89e3\u304c\u5bb9\u6613\u306b\u306a\u308b\u3002<\/p>\n<h3>3. \u30d0\u30e9\u30f3\u30b9<\/h3>\n<p>\u3053\u306e\u30eb\u30fc\u30eb\u306f\u968e\u5c64\u7684\u5206\u89e3\u306b\u9069\u7528\u3055\u308c\u308b\u3002\u30d7\u30ed\u30bb\u30b9\u304c\u30b5\u30d6\u30d7\u30ed\u30bb\u30b9\u306b\u5206\u89e3\u3055\u308c\u308b\u5834\u5408\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306e\u5165\u529b\u3068\u51fa\u529b\u306f\u3001\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u5165\u529b\u3068\u51fa\u529b\u306e\u5408\u8a08\u3068\u7b49\u3057\u304f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u5206\u89e3\u4e2d\u306b\u30c7\u30fc\u30bf\u304c\u6d88\u3048\u305f\u308a\u3001\u9b54\u6cd5\u306e\u3088\u3046\u306b\u73fe\u308c\u308b\u3053\u3068\u306f\u306a\u3044\u3002<\/p>\n<h3>4. \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d5\u30ed\u30fc\u306e\u56de\u907f<\/h3>\n<p>DFD\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d5\u30ed\u30fc\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u3067\u306f\u306a\u3044\u3002\u4f8b\u3048\u3070\u300cX\u306a\u3089\u3070Y\u300d\u3068\u3044\u3063\u305f\u6c7a\u5b9a\u30dd\u30a4\u30f3\u30c8\u3092\u793a\u3055\u306a\u3044\u3002\u30c7\u30fc\u30bf\u306e\u79fb\u52d5\u3092\u793a\u3059\u3082\u306e\u3067\u3042\u308b\u3002\u6c7a\u5b9a\u30ed\u30b8\u30c3\u30af\u306f\u56f3\u81ea\u4f53\u3067\u306f\u306a\u304f\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u8aac\u660e\u306e\u4e2d\u3067\u6271\u308f\u308c\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8996\u899a\u7684\u8868\u73fe\u304c\u660e\u78ba\u306b\u306a\u308a\u3001\u30c7\u30fc\u30bf\u306b\u7126\u70b9\u304c\u5f53\u305f\u308b\u3002<\/p>\n<h2>\u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74 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