{"id":4145,"date":"2026-03-27T04:54:17","date_gmt":"2026-03-27T04:54:17","guid":{"rendered":"https:\/\/www.diagrams-ai.com\/cn\/dfd-tutorial-model-data-movement-business-system\/"},"modified":"2026-03-27T04:54:17","modified_gmt":"2026-03-27T04:54:17","slug":"dfd-tutorial-model-data-movement-business-system","status":"publish","type":"post","link":"https:\/\/www.diagrams-ai.com\/cn\/dfd-tutorial-model-data-movement-business-system\/","title":{"rendered":"DFD\u6559\u7a0b\uff1a\u5982\u4f55\u5728\u4efb\u4f55\u4e1a\u52a1\u7cfb\u7edf\u4e2d\u5efa\u6a21\u6570\u636e\u6d41\u52a8"},"content":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u4fe1\u606f\u7cfb\u7edf\u53ef\u89c6\u5316\u7684\u84dd\u56fe\u3002\u4e0e\u901a\u8fc7\u8bed\u6cd5\u63cf\u8ff0\u903b\u8f91\u7684\u4ee3\u7801\u4e0d\u540c\uff0cDFD\u901a\u8fc7\u6570\u636e\u7684\u6d41\u52a8\u6765\u63cf\u8ff0\u903b\u8f91\u3002\u5b83\u63cf\u7ed8\u4e86\u6570\u636e\u5982\u4f55\u8fdb\u5165\u7cfb\u7edf\uff0c\u7ecf\u8fc7\u5404\u79cd\u5904\u7406\u8fc7\u7a0b\uff0c\u6700\u7ec8\u4ee5\u8f93\u51fa\u6216\u5b58\u50a8\u7684\u5f62\u5f0f\u79bb\u5f00\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u4e86\u5982\u4f55\u6784\u5efa\u8fd9\u4e9b\u56fe\u8868\uff0c\u800c\u65e0\u9700\u4f9d\u8d56\u4e13\u6709\u5de5\u5177\uff0c\u91cd\u70b9\u805a\u7126\u4e8e\u7cfb\u7edf\u5206\u6790\u7684\u57fa\u672c\u539f\u5219\u3002<\/p>\n<p>\u65e0\u8bba\u4f60\u662f\u4e3a\u65b0\u5e94\u7528\u7a0b\u5e8f\u5b9a\u4e49\u9700\u6c42\uff0c\u8fd8\u662f\u5ba1\u8ba1\u73b0\u6709\u7684\u9057\u7559\u7cfb\u7edf\uff0c\u7406\u89e3\u6570\u636e\u6d41\u90fd\u81f3\u5173\u91cd\u8981\u3002\u4e00\u4e2a\u7ed3\u6784\u826f\u597d\u7684DFD\u80fd\u591f\u6d88\u9664\u6b67\u4e49\uff0c\u8feb\u4f7f\u5229\u76ca\u76f8\u5173\u8005\u5c31\u4fe1\u606f\u7684\u6765\u6e90\u548c\u7ec8\u6b62\u70b9\u8fbe\u6210\u4e00\u81f4\u3002\u672c\u6587\u6863\u63a2\u8ba8\u4e86DFD\u7684\u6784\u6210\u8981\u7d20\u3001\u6784\u5efa\u89c4\u5219\uff0c\u4ee5\u53ca\u5c06\u590d\u6742\u7cfb\u7edf\u5206\u89e3\u4e3a\u53ef\u7ba1\u7406\u89c6\u56fe\u7684\u65b9\u6cd5\u8bba\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Chibi-style infographic tutorial explaining Data Flow Diagrams (DFD) for business systems: illustrates the four essential components (external entities, processes, data stores, data flows), three decomposition levels (Context, Functional, Detailed), and five key principles (conservation, decomposition, balance, abstraction, clarity) with cute kawaii characters, colorful arrows, and clean visual hierarchy for intuitive learning\" decoding=\"async\" src=\"https:\/\/www.diagrams-ai.com\/wp-content\/uploads\/2026\/03\/chibi-dfd-tutorial-infographic-data-flow-diagram.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\udde0 \u7406\u89e3\u6838\u5fc3\u6982\u5ff5<\/h2>\n<p>\u6570\u636e\u6d41\u56fe\u4e0d\u662f\u63a7\u5236\u6d41\u56fe\u3002\u5b83\u4e0d\u5c55\u793a\u4e8b\u4ef6\u7684\u65f6\u95f4\u6216\u987a\u5e8f\u3002\u76f8\u53cd\uff0c\u5b83\u5173\u6ce8\u7684\u662f\u6570\u636e\u672c\u8eab\u3002\u5c06\u5176\u60f3\u8c61\u6210\u4e00\u4e2a\u6cb3\u6d41\u7cfb\u7edf\u7684\u5730\u56fe\u3002\u4f60\u5e76\u4e0d\u5173\u5fc3\u6c34\u6d41\u7684\u901f\u5ea6\u6216\u5929\u6c14\u72b6\u51b5\uff0c\u800c\u662f\u5173\u5fc3\u652f\u6d41\u3001\u6c34\u5e93\u4ee5\u53ca\u6cb3\u6d41\u7684\u5165\u6d77\u53e3\u3002<\/p>\n<p>\u5728\u5efa\u6a21\u4e1a\u52a1\u7cfb\u7edf\u65f6\uff0cDFD\u56de\u7b54\u4e09\u4e2a\u6838\u5fc3\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u6570\u636e\u6765\u81ea\u4f55\u5904\uff1f\uff08\u5916\u90e8\u5b9e\u4f53\uff09<\/li>\n<li>\u6570\u636e\u662f\u5982\u4f55\u88ab\u6539\u53d8\u7684\uff1f\uff08\u5904\u7406\u8fc7\u7a0b\uff09<\/li>\n<li>\u6570\u636e\u4fdd\u5b58\u5728\u4f55\u5904\uff1f\uff08\u6570\u636e\u5b58\u50a8\uff09<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u56de\u7b54\u8fd9\u4e9b\u95ee\u9898\uff0c\u4f60\u5c31\u80fd\u521b\u5efa\u51fa\u4e1a\u52a1\u7684\u903b\u8f91\u8868\u793a\u3002\u8fd9\u79cd\u8868\u793a\u4e0d\u53d7\u6784\u5efa\u7cfb\u7edf\u6240\u7528\u6280\u672f\u6808\u7684\u5f71\u54cd\uff0c\u59cb\u7ec8\u6709\u6548\u3002\u5b83\u662f\u4e00\u79cd\u62bd\u8c61\u8bed\u8a00\uff0c\u80fd\u591f\u5f25\u5408\u4e1a\u52a1\u9700\u6c42\u4e0e\u6280\u672f\u5b9e\u73b0\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002<\/p>\n<h2>\ud83d\udd11 \u56db\u4e2a\u6838\u5fc3\u7ec4\u6210\u90e8\u5206<\/h2>\n<p>\u6bcf\u4e2a\u6570\u636e\u6d41\u56fe\u90fd\u662f\u7531\u56db\u4e2a\u7279\u5b9a\u7b26\u53f7\u6784\u6210\u7684\u3002\u5c3d\u7ba1\u4e0d\u540c\u65b9\u6cd5\u8bba\u4e2d\u7684\u7b26\u53f7\u8868\u793a\u7565\u6709\u5dee\u5f02\uff0c\u4f46\u5176\u57fa\u672c\u6982\u5ff5\u4fdd\u6301\u4e00\u81f4\u3002\u638c\u63e1\u8fd9\u4e9b\u5143\u7d20\u662f\u5b9e\u73b0\u51c6\u786e\u5efa\u6a21\u7684\u57fa\u7840\u3002<\/p>\n<h3>1. \u5916\u90e8\u5b9e\u4f53 \ud83c\udfe2<\/h3>\n<p>\u5916\u90e8\u5b9e\u4f53\u4ee3\u8868\u5b58\u5728\u4e8e\u6240\u5efa\u6a21\u7cfb\u7edf\u8fb9\u754c\u4e4b\u5916\u7684\u6570\u636e\u6e90\u6216\u76ee\u6807\u3002\u5b83\u4eec\u901a\u5e38\u662f\u4e0e\u4e3b\u7cfb\u7edf\u4ea4\u4e92\u7684\u4eba\u3001\u90e8\u95e8\u6216\u5176\u4ed6\u7cfb\u7edf\u3002<\/p>\n<ul>\n<li><strong>\u6765\u6e90\uff1a<\/strong> \u4e00\u4f4d\u5ba2\u6237\u63d0\u4ea4\u8ba2\u5355\u3002<\/li>\n<li><strong> \u76ee\u7684\u5730\uff1a<\/strong> \u4e00\u4e2a\u7a0e\u52a1\u673a\u5173\u63a5\u6536\u62a5\u544a\u3002<\/li>\n<li><strong> \u7cfb\u7edf\uff1a<\/strong> \u4e00\u4e2a\u5916\u90e8\u652f\u4ed8\u7f51\u5173\u3002<\/li>\n<\/ul>\n<p>\u5728\u56fe\u8868\u4e2d\uff0c\u8fd9\u4e9b\u901a\u5e38\u4ee5\u65b9\u5f62\u6216\u77e9\u5f62\u8868\u793a\u3002\u5b83\u4eec\u5fc5\u987b\u59cb\u7ec8\u4e0e\u67d0\u4e2a\u5904\u7406\u8fc7\u7a0b\u76f8\u8fde\uff1b\u6570\u636e\u4e0d\u80fd\u51ed\u7a7a\u51fa\u73b0\uff0c\u4e5f\u4e0d\u80fd\u51ed\u7a7a\u6d88\u5931\u3002<\/p>\n<h3>2. \u5904\u7406\u8fc7\u7a0b \u2699\ufe0f<\/h3>\n<p>\u5904\u7406\u8fc7\u7a0b\u5c06\u8f93\u5165\u6570\u636e\u8f6c\u6362\u4e3a\u8f93\u51fa\u6570\u636e\u3002\u5b83\u662f\u7cfb\u7edf\u7684\u5f15\u64ce\u3002\u5728DFD\u4e2d\uff0c\u5904\u7406\u8fc7\u7a0b\u901a\u5e38\u4ee5\u5706\u5f62\u6216\u5706\u89d2\u77e9\u5f62\u8868\u793a\u3002\u5904\u7406\u8fc7\u7a0b\u7684\u540d\u79f0\u5e94\u59cb\u7ec8\u4e3a\u52a8\u8bcd+\u540d\u8bcd\u77ed\u8bed\uff0c\u4ee5\u8868\u660e\u5176\u52a8\u4f5c\u6027\u8d28\u3002<\/p>\n<ul>\n<li><strong>\u6709\u6548\uff1a<\/strong> \u201c\u9a8c\u8bc1\u8ba2\u5355\u201d\uff0c\u201c\u8ba1\u7b97\u7a0e\u6b3e\u201d\u3002<\/li>\n<li><strong>\u65e0\u6548\uff1a<\/strong> \u201c\u8ba2\u5355\u201d\uff0c\u201c\u7a0e\u6b3e\u201d\u3002<\/li>\n<\/ul>\n<p>\u6bcf\u4e2a\u5904\u7406\u8fc7\u7a0b\u90fd\u5fc5\u987b\u81f3\u5c11\u6709\u4e00\u4e2a\u8f93\u5165\u548c\u4e00\u4e2a\u8f93\u51fa\u3002\u5982\u679c\u4e00\u4e2a\u8fc7\u7a0b\u6709\u8f93\u5165\u4f46\u6ca1\u6709\u8f93\u51fa\uff0c\u90a3\u5c31\u662f\u201c\u9ed1\u6d1e\u201d\uff1b\u5982\u679c\u6709\u8f93\u51fa\u4f46\u6ca1\u6709\u8f93\u5165\uff0c\u90a3\u5c31\u662f\u201c\u5947\u8ff9\u201d\u3002\u4e24\u8005\u90fd\u4ee3\u8868\u5efa\u6a21\u9519\u8bef\u3002<\/p>\n<h3>3. \u6570\u636e\u5b58\u50a8 \ud83d\udcbe<\/h3>\n<p>\u6570\u636e\u5b58\u50a8\u8868\u793a\u4fe1\u606f\u88ab\u4fdd\u5b58\u4ee5\u4f9b\u540e\u7eed\u68c0\u7d22\u7684\u4f4d\u7f6e\u3002\u8fd9\u53ef\u4ee5\u662f\u6570\u636e\u5e93\u3001\u6587\u4ef6\u7cfb\u7edf\u3001\u5b9e\u4f53\u6863\u6848\u67dc\u6216\u4e34\u65f6\u7f13\u51b2\u533a\u3002\u4e0e\u5904\u7406\u8fc7\u7a0b\u4e0d\u540c\uff0c\u6570\u636e\u5b58\u50a8\u4e0d\u4f1a\u6539\u53d8\u6570\u636e\uff0c\u5b83\u53ea\u662f\u4fdd\u5b58\u6570\u636e\u3002<\/p>\n<ul>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>\u5ba2\u6237\u6570\u636e\u5e93\u3001\u5e93\u5b58\u65e5\u5fd7\u3001\u4e34\u65f6\u8d2d\u7269\u8f66\u3002<\/li>\n<\/ul>\n<p>\u5b83\u4eec\u901a\u5e38\u88ab\u7ed8\u5236\u4e3a\u5f00\u53e3\u7684\u77e9\u5f62\u6216\u4e24\u6761\u5e73\u884c\u7ebf\u3002\u5b83\u4eec\u901a\u8fc7\u6570\u636e\u6d41\u4e0e\u8fc7\u7a0b\u76f8\u8fde\uff0c\u8868\u793a\u8bfb\u53d6\u6216\u5199\u5165\u64cd\u4f5c\u3002<\/p>\n<h3>4. \u6570\u636e\u6d41 \ud83d\udd04<\/h3>\n<p>\u6570\u636e\u6d41\u662f\u8fde\u63a5\u5404\u4e2a\u7ec4\u4ef6\u7684\u7bad\u5934\u3002\u5b83\u4eec\u8868\u793a\u6570\u636e\u5728\u5b9e\u4f53\u3001\u8fc7\u7a0b\u548c\u5b58\u50a8\u4e4b\u95f4\u7684\u6d41\u52a8\u3002\u7bad\u5934\u5934\u8868\u793a\u6d41\u52a8\u7684\u65b9\u5411\u3002<\/p>\n<ul>\n<li><strong>\u6807\u6ce8\uff1a<\/strong>\u6bcf\u4e2a\u7bad\u5934\u90fd\u5fc5\u987b\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6807\u7b7e\uff0c\u7528\u4e8e\u63cf\u8ff0\u6570\u636e\u5305\u3002<\/li>\n<li><strong>\u547d\u540d\uff1a<\/strong>\u4f7f\u7528\u540d\u8bcd\uff0c\u4f8b\u5982\u201c\u53d1\u7968\u201d\u3001\u201c\u767b\u5f55\u51ed\u8bc1\u201d\u6216\u201c\u5e93\u5b58\u62a5\u544a\u201d\u3002<\/li>\n<li><strong>\u65b9\u5411\uff1a<\/strong>\u6570\u636e\u6d41\u662f\u5355\u5411\u7684\u3002\u5982\u679c\u6570\u636e\u53cc\u5411\u6d41\u52a8\uff0c\u5219\u9700\u7ed8\u5236\u4e24\u6761\u72ec\u7acb\u7684\u7bad\u5934\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcc9 \u5206\u89e3\u7684\u5c42\u7ea7<\/h2>\n<p>\u590d\u6742\u7cfb\u7edf\u65e0\u6cd5\u7ed8\u5236\u5728\u5355\u9875\u4e0a\u3002\u4e3a\u4e86\u7ba1\u7406\u590d\u6742\u6027\uff0cDFD\u88ab\u5206\u89e3\u4e3a\u4e0d\u540c\u8be6\u7ec6\u7a0b\u5ea6\u7684\u5c42\u7ea7\u3002\u8fd9\u79cd\u5206\u5c42\u65b9\u6cd5\u4f7f\u5206\u6790\u4eba\u5458\u80fd\u591f\u6df1\u5165\u6216\u8df3\u51fa\u7cfb\u7edf\u67b6\u6784\u8fdb\u884c\u67e5\u770b\u3002<\/p>\n<h3>\u7b2c0\u5c42\uff1a\u4e0a\u4e0b\u6587\u56fe<\/h3>\n<p>\u4e0a\u4e0b\u6587\u56fe\u662f\u6700\u9ad8\u5c42\u7ea7\u7684\u89c6\u56fe\u3002\u5b83\u5c06\u6574\u4e2a\u7cfb\u7edf\u8868\u793a\u4e3a\u4e00\u4e2a\u5355\u4e00\u7684\u8fc7\u7a0b\u6c14\u6ce1\u3002\u5b83\u5c55\u793a\u4e86\u7cfb\u7edf\u4e0e\u5916\u90e8\u5b9e\u4f53\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li><strong>\u8303\u56f4\uff1a<\/strong>\u4e00\u4e2a\u4e2d\u5fc3\u8fc7\u7a0b\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong>\u6700\u5c11\u3002\u4ec5\u5305\u542b\u8f93\u5165\u548c\u8f93\u51fa\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong>\u7528\u4e8e\u5b9a\u4e49\u9879\u76ee\u7684\u8fb9\u754c\u3002<\/li>\n<\/ul>\n<h3>\u7b2c1\u5c42\uff1a\u529f\u80fd\u5206\u89e3<\/h3>\n<p>\u7b2c1\u5c42\u5c06\u4e0a\u4e0b\u6587\u56fe\u4e2d\u7684\u5355\u4e00\u8fc7\u7a0b\u6269\u5c55\u4e3a\u591a\u4e2a\u4e3b\u8981\u5b50\u8fc7\u7a0b\u3002\u8be5\u5c42\u7ea7\u8bc6\u522b\u7cfb\u7edf\u7684\u4e3b\u529f\u80fd\u533a\u57df\u3002<\/p>\n<ul>\n<li><strong>\u8303\u56f4\uff1a<\/strong>\u6700\u591a5\u52309\u4e2a\u8fc7\u7a0b\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong>\u5c55\u793a\u4e3b\u8981\u7684\u6570\u636e\u5b58\u50a8\u548c\u4ea4\u4e92\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong>\u7528\u4e8e\u6982\u8ff0\u7cfb\u7edf\u7684\u4e3b\u6a21\u5757\u3002<\/li>\n<\/ul>\n<h3>\u7b2c2\u5c42\uff1a\u8be6\u7ec6\u903b\u8f91<\/h3>\n<p>\u7b2c2\u7ea7\u805a\u7126\u4e8e\u7b2c1\u7ea7\u4e2d\u7684\u7279\u5b9a\u6d41\u7a0b\u3002\u5b83\u5c06\u590d\u6742\u7684\u51fd\u6570\u5206\u89e3\u4e3a\u66f4\u5c0f\u3001\u53ef\u6267\u884c\u7684\u6b65\u9aa4\u3002\u8fd9\u4e00\u7ea7\u522b\u901a\u5e38\u662f\u5f00\u53d1\u4eba\u5458\u67e5\u627e\u7279\u5b9a\u903b\u8f91\u9700\u6c42\u7684\u5730\u65b9\u3002<\/p>\n<ul>\n<li><strong>\u8303\u56f4\uff1a<\/strong>\u591a\u4e2a\u56fe\u8868\uff0c\u6bcf\u4e2a\u4e3b\u8981\u7684\u7b2c1\u7ea7\u6d41\u7a0b\u5bf9\u5e94\u4e00\u4e2a\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong>\u7ec6\u7c92\u5ea6\u7684\u6570\u636e\u5143\u7d20\u548c\u5b58\u50a8\u70b9\u3002<\/li>\n<li><strong>\u76ee\u7684\uff1a<\/strong>\u7528\u4e8e\u6280\u672f\u89c4\u8303\u548c\u7f16\u7801\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udcd0 \u6bd4\u8f83\u7b26\u53f7\u98ce\u683c<\/h2>\n<p>\u7cfb\u7edf\u5206\u6790\u4e2d\u4f7f\u7528\u4e86\u4e24\u79cd\u4e3b\u8981\u7684\u7b26\u53f7\u8868\u793a\u6cd5\u3002\u5c3d\u7ba1\u903b\u8f91\u76f8\u540c\uff0c\u4f46\u89c6\u89c9\u8868\u73b0\u5f62\u5f0f\u4e0d\u540c\u3002\u9009\u62e9\u5408\u9002\u7684\u7b26\u53f7\u53d6\u51b3\u4e8e\u56e2\u961f\u7684\u719f\u6089\u7a0b\u5ea6\u548c\u7ec4\u7ec7\u7684\u6807\u51c6\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>Yourdon &amp; DeMarco<\/th>\n<th>Gane &amp; Sarson<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u6d41\u7a0b\u5f62\u72b6<\/strong><\/td>\n<td>\u5706\u89d2\u77e9\u5f62<\/td>\n<td>\u5706\u89d2\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5b9e\u4f53\u5f62\u72b6<\/strong><\/td>\n<td>\u65b9\u5f62<\/td>\n<td>\u65b9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6570\u636e\u5b58\u50a8\u5f62\u72b6<\/strong><\/td>\n<td>\u5f00\u53e3\u77e9\u5f62<\/td>\n<td>\u9876\u90e8\u548c\u5e95\u90e8\u8f83\u7c97\u7684\u5f00\u53e3\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6570\u636e\u6d41\u5f62\u72b6<\/strong><\/td>\n<td>\u66f2\u7ebf\u7bad\u5934<\/td>\n<td>\u76f4\u7ebf\u7bad\u5934<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6d41\u6807\u7b7e\u4f4d\u7f6e<\/strong><\/td>\n<td>\u5728\u7ebf\u6761\u4e0b\u65b9<\/td>\n<td>\u5728\u7ebf\u4e0a\u6216\u7ebf\u4e0b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728Gane &amp; Sarson\u4e0eYourdon &amp; DeMarco\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9\u4e3b\u8981\u662f\u5916\u89c2\u4e0a\u7684\u5dee\u5f02\u3002\u7136\u800c\uff0c\u4fdd\u6301\u4e00\u81f4\u6027\u81f3\u5173\u91cd\u8981\u3002\u5728\u5355\u4e00\u6587\u6863\u4e2d\u6df7\u5408\u4f7f\u7528\u4e0d\u540c\u7b26\u53f7\u4f1a\u5f15\u53d1\u6df7\u6dc6\uff0c\u964d\u4f4e\u6587\u6863\u7684\u6e05\u6670\u5ea6\u3002<\/p>\n<h2>\ud83d\udee0 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