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class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Chibi-style infographic explaining Data Flow Diagrams for Enterprise System Design, featuring cute character icons for External Entities, Processes, Data Stores, and Data Flows; a pyramid visualization of DFD Levels 0-3; strategic benefits including gap analysis and security auditing; plus best practices and common pitfalls to avoid, all in a playful pastel vector illustration with clear English labels\" decoding=\"async\" src=\"https:\/\/www.viz-note.com\/wp-content\/uploads\/2026\/03\/data-flow-diagrams-enterprise-system-design-chibi-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\udde9 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DFD\u306b\u304a\u3051\u308b\u62bd\u8c61\u5ea6\u306e\u30ec\u30d9\u30eb<\/h2>\n<p>\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u5358\u4e00\u306e\u56f3\u3067\u6349\u3048\u308b\u306b\u306f\u3042\u307e\u308a\u306b\u3082\u8907\u96d1\u3067\u3042\u308b\u3002\u305d\u306e\u305f\u3081\u3001DFD\u306f\u5206\u89e3\u3068\u547c\u3070\u308c\u308b\u624b\u6cd5\u3092\u7528\u3044\u308b\u3002\u3053\u306e\u624b\u6cd5\u306b\u3088\u308a\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u6982\u8981\u304b\u3089\u59cb\u3081\u3066\u3001\u5177\u4f53\u7684\u306a\u8a73\u7d30\u3078\u3068\u6bb5\u968e\u7684\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u7ba1\u7406\u53ef\u80fd\u306a\u30ec\u30a4\u30e4\u30fc\u306b\u5206\u3051\u308b\u3002\u3053\u306e\u968e\u5c64\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u7570\u306a\u308b\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u9069\u5207\u306a\u7c92\u5ea6\u3067\u30b7\u30b9\u30c6\u30e0\u3092\u628a\u63e1\u3067\u304d\u308b\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u3001\u6a19\u6e96\u7684\u306aDFD\u306e\u30ec\u30d9\u30eb\u3092\u793a\u3059\u3002<\/p>\n<table>\n<tr>\n<th><strong>\u30ec\u30d9\u30eb<\/strong><\/th>\n<th><strong>\u4e00\u822c\u7684\u306a\u540d\u79f0<\/strong><\/th>\n<th><strong>\u7126\u70b9<\/strong><\/th>\n<th><strong>\u6700\u9069\u306a\u7528\u9014<\/strong><\/th>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3<\/td>\n<td>\u30b7\u30b9\u30c6\u30e0\u6982\u8981<\/td>\n<td>\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306e\u6574\u5408<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>\u30ec\u30d9\u30eb1 DFD<\/td>\n<td>\u4e3b\u8981\u306a\u30b5\u30d6\u30d7\u30ed\u30bb\u30b9<\/td>\n<td>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30ec\u30d3\u30e5\u30fc<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u30ec\u30d9\u30eb2 DFD<\/td>\n<td>\u7279\u5b9a\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc<\/td>\n<td>\u6a5f\u80fd\u8a2d\u8a08<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u30ec\u30d9\u30eb3 DFD<\/td>\n<td>\u30a2\u30c8\u30df\u30c3\u30af\u306a\u64cd\u4f5c<\/td>\n<td>\u5b9f\u88c5\u8a73\u7d30<\/td>\n<\/tr>\n<\/table>\n<h3>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\uff08\u30ec\u30d9\u30eb0\uff09<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u56f3\u306f\u5165\u9580\u70b9\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3092\u5358\u4e00\u306e\u30d7\u30ed\u30bb\u30b9\u30d0\u30d6\u30eb\u3068\u3057\u3066\u63cf\u5199\u3057\u307e\u3059\u3002\u3053\u306e\u56f3\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u5883\u754c\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u5916\u90e8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u5883\u754c\u3092\u6a2a\u5207\u308b\u4e3b\u8981\u306a\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u306e\u307f\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u7d4c\u55b6\u8005\u3084\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306a\u3069\u6280\u8853\u7684\u3067\u306a\u3044\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3068\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4f7f\u7528\u3059\u308b\u4e3b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u30b7\u30b9\u30c6\u30e0\u3092\u4e00\u3064\u306e\u4e2d\u5fc3\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3068\u3057\u3066\u793a\u3057\u307e\u3059\u3002<\/li>\n<li>\u3059\u3079\u3066\u306e\u5916\u90e8\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3068\u30b7\u30f3\u30af\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7bc4\u56f2\u3092\u5373\u5ea7\u306b\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/li>\n<li>\u5916\u90e8\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u304c\u898b\u9003\u3055\u308c\u308b\u3053\u3068\u304c\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30ec\u30d9\u30eb1 DFD<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u304c\u78ba\u7acb\u3055\u308c\u308b\u3068\u3001\u4e2d\u5fc3\u30d7\u30ed\u30bb\u30b9\u304c\u4e3b\u8981\u306a\u30b5\u30d6\u30d7\u30ed\u30bb\u30b9\u306b\u5206\u89e3\u3055\u308c\u307e\u3059\u3002\u30ec\u30d9\u30eb1 DFD\u306b\u306f\u901a\u5e385\uff5e9\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u306e\u8a73\u7d30\u30ec\u30d9\u30eb\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u304c\u4e3b\u8981\u306a\u6a5f\u80fd\u9818\u57df\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5341\u5206\u3067\u3059\u3002\u5206\u89e3\u304c\u30d0\u30e9\u30f3\u30b9\u3088\u304f\u8ad6\u7406\u7684\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30ec\u30d9\u30eb0\u306e\u5358\u4e00\u30d7\u30ed\u30bb\u30b9\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002<\/li>\n<li>\u5185\u90e8\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3092\u5c0e\u5165\u3057\u307e\u3059\u3002<\/li>\n<li>\u30d7\u30ed\u30bb\u30b9\u3092\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3067\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n<li>\u30ec\u30d9\u30eb0\u306e\u3059\u3079\u3066\u306e\u5165\u529b\u3068\u51fa\u529b\u3092\u6b63\u78ba\u306b\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30ec\u30d9\u30eb2\u304a\u3088\u3073\u30ec\u30d9\u30eb3 DFD<\/h3>\n<p>\u9ad8\u3044\u7cbe\u5ea6\u3092\u8981\u3059\u308b\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u3055\u3089\u306b\u5206\u89e3\u304c\u5fc5\u8981\u3067\u3059\u3002\u30ec\u30d9\u30eb2\u56f3\u306f\u30ec\u30d9\u30eb1\u306e\u7279\u5b9a\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u5206\u89e3\u3057\u307e\u3059\u3002\u30ec\u30d9\u30eb3\u56f3\u306f\u8907\u96d1\u306a\u8a08\u7b97\u3084\u898f\u5236\u9075\u5b88\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u308a\u6df1\u3044\u30ec\u30d9\u30eb\u306f\u660e\u78ba\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u4fdd\u5b88\u306e\u8ca0\u62c5\u3082\u5897\u52a0\u3057\u307e\u3059\u3002\u958b\u767a\u8005\u304c\u76f4\u63a5\u5b9f\u88c5\u3067\u304d\u308b\u307b\u3069\u30d7\u30ed\u30bb\u30b9\u304c\u30a2\u30c8\u30df\u30c3\u30af\u306b\u306a\u308b\u6642\u70b9\u3067\u5206\u89e3\u3092\u505c\u6b62\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\ud83d\udee1\ufe0f 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DFD\u306f\u30b9\u30b3\u30fc\u30d7\u30af\u30ea\u30fc\u30d7\u3092\u9632\u304e\u307e\u3059\u3002\u65b0\u3057\u3044\u6a5f\u80fd\u304c\u63d0\u6848\u3055\u308c\u305f\u5834\u5408\u3001\u56f3\u306b\u8ffd\u52a0\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u6d41\u308c\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u5d29\u308c\u308b\u5834\u5408\u306f\u3001\u5b9f\u88c5\u524d\u306b\u8a2d\u8a08\u4e0a\u306e\u6b20\u9665\u304c\u793a\u5506\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcdd 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