{"id":4085,"date":"2026-03-29T01:32:41","date_gmt":"2026-03-29T01:32:41","guid":{"rendered":"https:\/\/www.diagrams-ai.com\/cn\/5-essential-data-flow-diagram-components\/"},"modified":"2026-03-29T01:32:41","modified_gmt":"2026-03-29T01:32:41","slug":"5-essential-data-flow-diagram-components","status":"publish","type":"post","link":"https:\/\/www.diagrams-ai.com\/cn\/5-essential-data-flow-diagram-components\/","title":{"rendered":"\u6bcf\u4e2a\u6570\u636e\u6d41\u56fe\u7684\u4e94\u4e2a\u57fa\u672c\u7ec4\u6210\u90e8\u5206\uff08\u542b\u793a\u4f8b\uff09"},"content":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u4fe1\u606f\u5728\u7cfb\u7edf\u4e2d\u6d41\u52a8\u65b9\u5f0f\u7684\u89c6\u89c9\u8868\u793a\u3002\u5b83\u5173\u6ce8\u7684\u4e0d\u662f\u7cfb\u7edf\u7684\u5916\u89c2\uff0c\u800c\u662f\u6570\u636e\u5982\u4f55\u88ab\u5904\u7406\u3001\u5b58\u50a8\u548c\u4f20\u8f93\u3002\u5bf9\u4e8e\u5206\u6790\u5e08\u548c\u67b6\u6784\u5e08\u800c\u8a00\uff0c\u638c\u63e1\u8fd9\u79cd\u8868\u793a\u6cd5\u5bf9\u4e8e\u7406\u89e3\u590d\u6742\u7684\u6d41\u7a0b\u81f3\u5173\u91cd\u8981\uff0c\u800c\u4e0d\u4f1a\u9677\u5165\u6280\u672f\u5b9e\u73b0\u7ec6\u8282\u7684\u6ce5\u6f6d\u3002<\/p>\n<p>\u672c\u6307\u5357\u5c06\u5256\u6790\u6570\u636e\u6d41\u56fe\u7684\u7ed3\u6784\u3002\u6211\u4eec\u5c06\u7814\u7a76\u6784\u6210\u8fd9\u4e9b\u56fe\u8868\u7684\u4e94\u4e2a\u6838\u5fc3\u8981\u7d20\uff0c\u63a2\u8ba8\u5b83\u4eec\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u5e76\u63d0\u4f9b\u5b9e\u7528\u793a\u4f8b\u3002\u6700\u540e\uff0c\u60a8\u5c06\u7406\u89e3\u521b\u5efa\u6e05\u6670\u3001\u53ef\u64cd\u4f5c\u7684\u7cfb\u7edf\u5730\u56fe\u6240\u9700\u7684\u7ed3\u6784\u5b8c\u6574\u6027\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Line art infographic illustrating the 5 essential components of Data Flow Diagrams: Process (rounded rectangle transforming data), Data Store (open rectangle holding information), External Entity (square representing system interactors), Data Flow (directional arrow showing data movement), and Data Dictionary (document defining data structures). Shows component symbols, naming conventions, grammar rules, and interconnections in a clean 16:9 layout for system analysis, software architecture, and business process modeling education.\" decoding=\"async\" src=\"https:\/\/www.diagrams-ai.com\/wp-content\/uploads\/2026\/03\/data-flow-diagram-5-components-infographic-line-art.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\udde9 \u4ec0\u4e48\u662f\u6570\u636e\u6d41\u56fe\uff1f<\/h2>\n<p>\u6570\u636e\u6d41\u56fe\u662f\u4e00\u79cd\u56fe\u5f62\u5316\u8868\u793a\uff0c\u7528\u4e8e\u5c55\u793a\u6570\u636e\u5728\u4fe1\u606f\u7cfb\u7edf\u4e2d\u7684\u6d41\u52a8\u8fc7\u7a0b\u3002\u4e0e\u5173\u6ce8\u63a7\u5236\u903b\u8f91\u548c\u51b3\u7b56\u70b9\u7684\u6d41\u7a0b\u56fe\u4e0d\u540c\uff0c\u6570\u636e\u6d41\u56fe\u4e13\u6ce8\u4e8e\u6570\u636e\u7684\u6d41\u52a8\u3002\u5b83\u62bd\u8c61\u4e86\u7269\u7406\u5b9e\u73b0\uff0c\u4ee5\u5c55\u793a\u4fe1\u606f\u7684\u903b\u8f91\u6d41\u52a8\u3002<\/p>\n<p>\u6570\u636e\u6d41\u56fe\u5177\u6709\u5c42\u6b21\u6027\u3002\u5b83\u4eec\u4ece\u9ad8\u5c42\u6b21\u89c6\u56fe\u5f00\u59cb\uff0c\u9010\u6b65\u6df1\u5165\u5230\u5177\u4f53\u7ec6\u8282\u3002\u8fd9\u79cd\u5206\u5c42\u65b9\u6cd5\u4f7f\u5229\u76ca\u76f8\u5173\u8005\u80fd\u591f\u4e00\u76ee\u4e86\u7136\u5730\u7406\u89e3\u7cfb\u7edf\uff0c\u540c\u65f6\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u770b\u6e05\u5177\u4f53\u7684\u6570\u636e\u9700\u6c42\u3002<\/p>\n<ul>\n<li><strong>\u89c6\u89c9\u6e05\u6670\u5ea6\uff1a<\/strong> \u5c06\u590d\u6742\u7684\u903b\u8f91\u7b80\u5316\u4e3a\u7b80\u5355\u7684\u56fe\u5f62\u3002<\/li>\n<li><strong> \u6c9f\u901a\uff1a<\/strong> \u642d\u5efa\u6280\u672f\u56e2\u961f\u4e0e\u4e1a\u52a1\u5229\u76ca\u76f8\u5173\u8005\u4e4b\u95f4\u7684\u6c9f\u901a\u6865\u6881\u3002<\/li>\n<li><strong> \u5206\u6790\uff1a<\/strong> \u6709\u52a9\u4e8e\u8bc6\u522b\u74f6\u9888\u3001\u5197\u4f59\u6216\u7f3a\u5931\u7684\u6570\u636e\u8def\u5f84\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udfd7\ufe0f \u6bcf\u4e2a\u6570\u636e\u6d41\u56fe\u7684\u4e94\u4e2a\u57fa\u672c\u7ec4\u6210\u90e8\u5206<\/h2>\n<p>\u8981\u6784\u5efa\u4e00\u4e2a\u6709\u6548\u7684\u6570\u636e\u6d41\u56fe\uff0c\u5fc5\u987b\u5305\u542b\u4e94\u4e2a\u7279\u5b9a\u5143\u7d20\u3002\u524d\u56db\u4e2a\u662f\u56fe\u5f62\u7b26\u53f7\uff0c\u800c\u7b2c\u4e94\u4e2a\u662f\u786e\u4fdd\u51c6\u786e\u6027\u7684\u6982\u5ff5\u6027\u8981\u6c42\u3002<\/p>\n<h3>1. \u5904\u7406\u8fc7\u7a0b\uff08\u8f6c\u6362\uff09 \ud83d\udd04<\/h3>\n<p>\u5904\u7406\u8fc7\u7a0b\u8868\u793a\u5c06\u8f93\u5165\u6570\u636e\u8f6c\u6362\u4e3a\u8f93\u51fa\u6570\u636e\u7684\u529f\u80fd\u3002\u5b83\u662f\u7cfb\u7edf\u7684\u5f15\u64ce\u3002\u5728\u6570\u636e\u6d41\u56fe\u4e2d\uff0c\u5904\u7406\u8fc7\u7a0b\u901a\u5e38\u4ee5\u5706\u89d2\u77e9\u5f62\u6216\u5706\u5f62\u8868\u793a\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u8bb0\u6cd5\u98ce\u683c\uff08Yourdon\/DeMarco \u4e0e Gane\/Sarson \u4e4b\u5206\uff09\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u5f81\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u8f6c\u6362\uff1a<\/strong> \u5904\u7406\u8fc7\u7a0b\u5fc5\u987b\u6539\u53d8\u6570\u636e\u7684\u5f62\u5f0f\u6216\u5185\u5bb9\u3002\u5982\u679c\u6570\u636e\u8fdb\u5165\u548c\u79bb\u5f00\u65f6\u672a\u53d1\u751f\u53d8\u5316\uff0c\u5219\u4e0d\u662f\u5904\u7406\u8fc7\u7a0b\uff0c\u800c\u662f\u6570\u636e\u6d41\u3002<\/li>\n<li><strong>\u7f16\u53f7\uff1a<\/strong> \u5904\u7406\u8fc7\u7a0b\u9700\u7f16\u53f7\u4ee5\u5efa\u7acb\u5c42\u7ea7\u5173\u7cfb\uff08\u4f8b\u5982\uff1a1.0\u30011.1\u30011.2\uff09\u3002<\/li>\n<li><strong>\u52a8\u8bcd\u547d\u540d\uff1a<\/strong> \u540d\u79f0\u5e94\u4ee5\u52a8\u8bcd\u5f00\u5934\uff08\u4f8b\u5982\uff1a\u201c\u8ba1\u7b97\u603b\u989d\u201d\uff0c\u800c\u4e0d\u662f\u201c\u603b\u989d\u8ba1\u7b97\u201d\uff09\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong> \u8003\u8651\u4e00\u4e2a\u7535\u5b50\u5546\u52a1\u7cfb\u7edf\u3002\u4e00\u4e2a\u5904\u7406\u8fc7\u7a0b\u53ef\u80fd\u662f<em>\u201c\u9a8c\u8bc1\u4ed8\u6b3e\u201d<\/em>\u3002\u5b83\u63a5\u6536\u4fe1\u7528\u5361\u6570\u636e\uff08\u8f93\u5165\uff09\uff0c\u5e76\u8fd4\u56de\u6279\u51c6\u6216\u62d2\u7edd\u4ee3\u7801\uff08\u8f93\u51fa\uff09\u3002<\/p>\n<h3>2. \u6570\u636e\u5b58\u50a8\uff08\u5b58\u50a8\u5e93\uff09 \ud83d\uddc4\ufe0f<\/h3>\n<p>\u6570\u636e\u5b58\u50a8\u662f\u4fe1\u606f\u88ab\u4fdd\u5b58\u4ee5\u4f9b\u540e\u7eed\u4f7f\u7528\u7684\u573a\u6240\u3002\u5b83\u4ee3\u8868\u6570\u636e\u5e93\u3001\u6587\u4ef6\u3001\u7eb8\u8d28\u6863\u6848\u67dc\u6216\u4efb\u4f55\u6301\u4e45\u5316\u673a\u5236\u3002\u5173\u952e\u7684\u662f\uff0c\u6570\u636e\u5b58\u50a8\u4e0d\u4f1a\u5904\u7406\u6570\u636e\uff0c\u5b83\u53ea\u662f\u4fdd\u5b58\u6570\u636e\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u5f81\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u5f00\u653e\u4e0e\u5c01\u95ed\uff1a<\/strong> \u6570\u636e\u53ef\u4ee5\u6d41\u5165\u548c\u6d41\u51fa\u4e00\u4e2a\u5b58\u50a8\u3002\u5b83\u4e0d\u662f\u4e00\u4e2a\u9ed1\u6d1e\u3002<\/li>\n<li><strong>\u547d\u540d\uff1a<\/strong> \u540d\u79f0\u5e94\u4e3a\u8868\u793a\u5185\u5bb9\u7684\u590d\u6570\u540d\u8bcd\uff08\u4f8b\u5982\uff0c\u201c\u5ba2\u6237\u8bb0\u5f55\u201d\uff0c\u800c\u4e0d\u662f\u201c\u5ba2\u6237\u8bb0\u5f55\u201d\uff09\u3002<\/li>\n<li><strong>\u65e0\u5904\u7406\uff1a<\/strong> \u4e0d\u8981\u5c06\u6570\u636e\u5b58\u50a8\u4e0e\u5904\u7406\u6df7\u6dc6\u3002\u5982\u679c\u6570\u636e\u6b63\u5728\u88ab\u4fee\u6539\uff0c\u5b83\u5c5e\u4e8e\u4e00\u4e2a\u5904\u7406\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong> \u5728\u4e00\u4e2a\u56fe\u4e66\u9986\u7cfb\u7edf\u4e2d\uff0c<em>\u201c\u56fe\u4e66\u5e93\u5b58\u201d<\/em> \u6570\u636e\u5b58\u50a8\u4fdd\u5b58\u4e86\u53ef\u7528\u56fe\u4e66\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u5f53\u4e00\u672c\u4e66\u88ab\u501f\u51fa\u6216\u5f52\u8fd8\u65f6\uff0c\u8be5\u5b58\u50a8\u4f1a\u88ab\u66f4\u65b0\u3002<\/p>\n<h3>3. \u5916\u90e8\u5b9e\u4f53\uff08\u4ea4\u4e92\u8005\uff09 \ud83d\udc65<\/h3>\n<p>\u5916\u90e8\u5b9e\u4f53\u662f\u7cfb\u7edf\u8fb9\u754c\u4e4b\u5916\u7684\u6570\u636e\u6e90\u6216\u76ee\u7684\u5730\u3002\u5b83\u4eec\u4ee3\u8868\u4e0e\u4e3b\u7cfb\u7edf\u4ea4\u4e92\u4f46\u4e0d\u5c5e\u4e8e\u5176\u5185\u90e8\u903b\u8f91\u7684\u4eba\u3001\u7ec4\u7ec7\u6216\u5176\u4ed6\u7cfb\u7edf\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u5f81\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u8fb9\u754c\uff1a<\/strong> \u5b83\u4eec\u5b9a\u4e49\u4e86\u7cfb\u7edf\u7684\u8303\u56f4\u3002\u65b9\u6846\u4e4b\u5916\u7684\u4efb\u4f55\u4e8b\u7269\u90fd\u662f\u5916\u90e8\u5b9e\u4f53\u3002<\/li>\n<li><strong>\u7c7b\u578b\uff1a<\/strong> \u53ef\u4ee5\u662f\u4eba\u7c7b\u7528\u6237\uff08\u4f8b\u5982\uff0c\u201c\u5ba2\u6237\u201d\uff09\u3001\u5176\u4ed6\u7cfb\u7edf\uff08\u4f8b\u5982\uff0c\u201c\u94f6\u884cAPI\u201d\uff09\u6216\u653f\u5e9c\u673a\u6784\uff08\u4f8b\u5982\uff0c\u201c\u7a0e\u52a1\u673a\u5173\u201d\uff09\u3002<\/li>\n<li><strong>\u89d2\u8272\uff1a<\/strong> \u5b83\u4eec\u63d0\u4f9b\u8f93\u5165\u6216\u63a5\u6536\u8f93\u51fa\u3002\u5b83\u4eec\u4e0d\u4e3a\u7cfb\u7edf\u5b58\u50a8\u6570\u636e\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong> \u5728\u4e00\u4e2a\u85aa\u8d44\u7cfb\u7edf\u4e2d\uff0c<em>\u201c\u5458\u5de5\u201d<\/em> \u662f\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\uff0c\u63d0\u4f9b\u5de5\u4f5c\u65f6\u6570\u5e76\u63a5\u6536\u5de5\u8d44\u5355\u3002<\/p>\n<h3>4. \u6570\u636e\u6d41\uff08\u6d41\u52a8\uff09 \ud83d\ude9a<\/h3>\n<p>\u6570\u636e\u6d41\u662f\u8fde\u63a5\u5904\u7406\u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u7684\u7bad\u5934\u3002\u5b83\u4eec\u8868\u793a\u6570\u636e\u7684\u6d41\u52a8\u3002\u6570\u636e\u6d41\u5fc5\u987b\u6709\u4e00\u4e2a\u540d\u79f0\uff0c\u7528\u4ee5\u63cf\u8ff0\u6240\u4f20\u8f93\u6570\u636e\u7684\u5185\u5bb9\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u5f81\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u65b9\u5411\uff1a<\/strong> \u6d41\u5177\u6709\u5355\u4e00\u65b9\u5411\u3002\u5982\u679c\u6570\u636e\u53cc\u5411\u6d41\u52a8\uff0c\u5219\u9700\u8981\u4e24\u4e2a\u7bad\u5934\u3002<\/li>\n<li><strong>\u5185\u5bb9\uff1a<\/strong> \u6807\u7b7e\u5fc5\u987b\u5177\u4f53\uff08\u4f8b\u5982\uff0c\u201c\u5df2\u9a8c\u8bc1\u7684\u53d1\u7968\u201d\uff0c\u800c\u4e0d\u662f\u4ec5\u4ec5\u201c\u53d1\u7968\u201d\uff09\u3002<\/li>\n<li><strong>\u4fdd\u6301\u6027\uff1a<\/strong>\u6570\u636e\u4e0d\u4f1a\u6d88\u5931\u3002\u6bcf\u4e2a\u8f93\u51fa\u90fd\u5fc5\u987b\u6709\u76f8\u5e94\u7684\u8f93\u5165\u6216\u6765\u6e90\u3002<\/li>\n<\/ul>\n<p><strong> \u793a\u4f8b\uff1a<\/strong> \u8fde\u63a5 <em>\u201c\u767b\u5f55\u201d<\/em> \u5904\u7406\u8fc7\u7a0b\u4e0e <em>\u201c\u7528\u6237\u6570\u636e\u5e93\u201d<\/em> \u6570\u636e\u5b58\u50a8\u7684\u7bad\u5934\u5e94\u6807\u8bb0\u4e3a <em>\u201c\u8ba4\u8bc1\u8bf7\u6c42\u201d<\/em>.<\/p>\n<h3>5. \u6570\u636e\u5b57\u5178\uff08\u5b9a\u4e49\uff09 \ud83d\udcda<\/h3>\n<p>\u867d\u7136\u6570\u636e\u5b57\u5178\u672c\u8eab\u5e76\u672a\u7ed8\u5236\u5728\u56fe\u4e2d\uff0c\u4f46\u5b83\u662f\u5b8c\u6574DFD\u89c4\u8303\u7684\u7b2c\u4e94\u4e2a\u5173\u952e\u7ec4\u6210\u90e8\u5206\u3002\u5b83\u662f\u4e00\u4e2a\u96c6\u4e2d\u5f0f\u5b58\u50a8\u5e93\uff0c\u7528\u4e8e\u5b9a\u4e49\u56fe\u4e2d\u4f7f\u7528\u7684\u6240\u6709\u6570\u636e\u5143\u7d20\u7684\u7ed3\u6784\u3001\u7c7b\u578b\u548c\u683c\u5f0f\u3002\u6ca1\u6709\u5b83\uff0c\u56fe\u8868\u5c31\u4f1a\u53d8\u5f97\u6a21\u7cca\u4e0d\u6e05\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u6027\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u6807\u51c6\u5316\uff1a<\/strong> \u786e\u4fdd\u4e00\u4e2a\u6d41\u7a0b\u4e2d\u7684\u201c\u5ba2\u6237ID\u201d\u4e0e\u53e6\u4e00\u4e2a\u6d41\u7a0b\u4e2d\u7684\u201c\u5ba2\u6237ID\u201d\u76f8\u540c\u3002<\/li>\n<li><strong>\u5143\u6570\u636e\uff1a<\/strong> \u5b9a\u4e49\u6570\u636e\u7c7b\u578b\uff08\u6574\u6570\u3001\u5b57\u7b26\u4e32\u3001\u65e5\u671f\uff09\u3001\u957f\u5ea6\u548c\u5141\u8bb8\u7684\u503c\u3002<\/li>\n<li><strong> \u53c2\u8003\uff1a<\/strong> \u5c06\u7279\u5b9a\u7684\u6570\u636e\u6d41\u4e0e\u5176\u8be6\u7ec6\u5b9a\u4e49\u5173\u8054\u8d77\u6765\u3002<\/li>\n<\/ul>\n<p><strong> \u793a\u4f8b\uff1a<\/strong> \u5b57\u5178\u53ef\u80fd\u5c06 <em>\u201c\u51fa\u751f\u65e5\u671f\u201d<\/em> \u5b9a\u4e49\u4e3a <code>YYYY-MM-DD<\/code> \u4e14\u4e0d\u5141\u8bb8\u4e3a\u7a7a\u503c\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u6d41\u7a0b\u4e2d\u51fa\u73b0\u903b\u8f91\u9519\u8bef\u3002<\/p>\n<h2>\ud83d\udccb \u7ec4\u4ef6\u5bf9\u6bd4\u8868<\/h2>\n<p>\u5728\u8bbe\u8ba1\u9636\u6bb5\uff0c\u53ef\u4f7f\u7528\u6b64\u8868\u5feb\u901f\u67e5\u9605\u6bcf\u4e2a\u7ec4\u4ef6\u7684\u5c5e\u6027\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7ec4\u4ef6<\/th>\n<th>\u7b26\u53f7\u5f62\u72b6<\/th>\n<th>\u529f\u80fd<\/th>\n<th>\u793a\u4f8b\u6807\u7b7e<\/th>\n<th>\u8bed\u6cd5\u89c4\u5219<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5904\u7406<\/td>\n<td>\u5706\u89d2\u77e9\u5f62 \/ \u5706\u5f62<\/td>\n<td>\u8f6c\u6362\u6570\u636e<\/td>\n<td>\u8ba1\u7b97\u7a0e\u6b3e<\/td>\n<td>\u52a8\u8bcd + \u540d\u8bcd<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u5b58\u50a8<\/td>\n<td>\u5f00\u53e3\u77e9\u5f62 \/ \u5e73\u884c\u7ebf<\/td>\n<td>\u5b58\u50a8\u6570\u636e<\/td>\n<td>\u8ba2\u5355\u5386\u53f2<\/td>\n<td>\u540d\u8bcd\uff08\u590d\u6570\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u90e8\u5b9e\u4f53<\/td>\n<td>\u65b9\u5f62 \/ \u77e9\u5f62<\/td>\n<td>\u6e90\/\u6c47<\/td>\n<td>\u94f6\u884c\u7cfb\u7edf<\/td>\n<td>\u540d\u8bcd\uff08\u5355\u6570\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u6d41<\/td>\n<td>\u7bad\u5934<\/td>\n<td>\u79fb\u52a8\u6570\u636e<\/td>\n<td>\u652f\u4ed8\u8be6\u60c5<\/td>\n<td>\u540d\u8bcd\u77ed\u8bed<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u5b57\u5178<\/td>\n<td>\u6587\u6863 \/ \u5217\u8868<\/td>\n<td>\u5b9a\u4e49\u6570\u636e<\/td>\n<td>\u6570\u636e\u5b9a\u4e49<\/td>\n<td>\u6280\u672f\u6a21\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83d\udcc9 DFD\u8be6\u7ec6\u7a0b\u5ea6\u7684\u5c42\u7ea7<\/h2>\n<p>DFD\u5f88\u5c11\u5355\u72ec\u7ed8\u5236\u3002\u5b83\u4eec\u5b58\u5728\u4e8e\u4e00\u4e2a\u5c42\u7ea7\u7ed3\u6784\u4e2d\uff0c\u5141\u8bb8\u4e0d\u540c\u5c42\u6b21\u7684\u62bd\u8c61\u3002\u7406\u89e3\u8fd9\u4e9b\u5c42\u7ea7\u53ef\u4ee5\u786e\u4fdd\u5728\u6bcf\u4e2a\u9636\u6bb5\u6b63\u786e\u5e94\u7528\u4e94\u4e2a\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n<h3>\u4e0a\u4e0b\u6587\u56fe\uff08\u7b2c0\u5c42\uff09<\/h3>\n<p>\u8fd9\u662f\u6700\u9ad8\u5c42\u7ea7\u7684\u89c6\u56fe\u3002\u5b83\u5c06\u6574\u4e2a\u7cfb\u7edf\u663e\u793a\u4e3a\u4e00\u4e2a\u5355\u4e00\u7684\u8fc7\u7a0b\u3002\u5b83\u8bc6\u522b\u5916\u90e8\u5b9e\u4f53\u4ee5\u53ca\u8fdb\u5165\u6216\u79bb\u5f00\u7cfb\u7edf\u7684\u4e3b\u6570\u636e\u6d41\u3002<\/p>\n<ul>\n<li><strong>\u5173\u6ce8\u70b9\uff1a<\/strong>\u8303\u56f4\u548c\u8fb9\u754c\u3002<\/li>\n<li><strong>\u7ec4\u4ef6\uff1a<\/strong> 1 \u4e2a\u8fc7\u7a0b\uff0c3 \u4e2a\u4ee5\u4e0a\u5916\u90e8\u5b9e\u4f53\uff0c\u591a\u4e2a\u6570\u636e\u6d41\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong> \u4e0d\u663e\u793a\u6570\u636e\u5b58\u50a8\u6216\u5b50\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n<h3>\u7b2c 0 \u5c42\u56fe\uff08\u57fa\u7840\u6a21\u578b\uff09<\/h3>\n<p>\u8be5\u56fe\u5c06\u4e0a\u4e0b\u6587\u56fe\u4e2d\u7684\u5355\u4e00\u8fc7\u7a0b\u5206\u89e3\u4e3a\u4e3b\u8981\u5b50\u8fc7\u7a0b\u3002\u5b83\u5f15\u5165\u4e86\u7b2c\u4e00\u5c42\u5185\u90e8\u6570\u636e\u5b58\u50a8\u548c\u8fc7\u7a0b\u3002<\/p>\n<ul>\n<li><strong>\u5173\u6ce8\u70b9\uff1a<\/strong> \u4e3b\u8981\u529f\u80fd\u533a\u57df\u3002<\/li>\n<li><strong>\u7ec4\u4ef6\uff1a<\/strong> \u6240\u6709 5 \u4e2a\u7ec4\u4ef6\u5747\u5728\u6b64\u51fa\u73b0\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong> \u5c55\u793a\u7cfb\u7edf\u4e3b\u8981\u90e8\u5206\u4e4b\u95f4\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<h3>\u7b2c 1 \u5c42\u56fe\uff08\u8be6\u7ec6\u89c6\u56fe\uff09<\/h3>\n<p>\u6b64\u5c42\u7ea7\u5c06\u7b2c 0 \u5c42\u7684\u8fc7\u7a0b\u5206\u89e3\u4e3a\u5176\u7ec4\u6210\u90e8\u5206\u529f\u80fd\u3002\u7528\u4e8e\u8be6\u7ec6\u8bbe\u8ba1\u548c\u5f00\u53d1\u3002<\/p>\n<ul>\n<li><strong>\u5173\u6ce8\u70b9\uff1a<\/strong> \u5177\u4f53\u903b\u8f91\u548c\u6570\u636e\u5904\u7406\u3002<\/li>\n<li><strong>\u7ec4\u4ef6\uff1a<\/strong> \u7ec6\u7c92\u5ea6\u7684\u6570\u636e\u6d41\u548c\u7279\u5b9a\u7684\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<li><strong>\u7ec6\u8282\uff1a<\/strong> \u9ad8\u4fdd\u771f\u5ea6\u3002\u7531\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f \u8bbe\u8ba1\u6709\u6548\u56fe\u8868<\/h2>\n<p>\u521b\u5efa\u6570\u636e\u6d41\u56fe\u662f\u4e00\u4e2a\u8fed\u4ee3\u8fc7\u7a0b\u3002\u4e3a\u786e\u4fdd\u56fe\u8868\u4fdd\u6301\u6709\u7528\u4e14\u51c6\u786e\uff0c\u8bf7\u9075\u5faa\u4ee5\u4e0b\u7ed3\u6784\u89c4\u5219\u3002<\/p>\n<h3>1. \u5e73\u8861\u6027<\/h3>\n<p>\u5f53\u4f60\u5c06\u4e00\u4e2a\u8fc7\u7a0b\u5206\u89e3\u5230\u66f4\u4f4e\u5c42\u7ea7\u65f6\uff0c\u8f93\u5165\u548c\u8f93\u51fa\u5fc5\u987b\u4fdd\u6301\u4e00\u81f4\u3002\u5982\u679c\u7236\u8fc7\u7a0b\u63a5\u6536\u201c\u8ba2\u5355\u6570\u636e\u201d\uff0c\u5b50\u8fc7\u7a0b\u5fc5\u987b\u5171\u540c\u5904\u7406\u76f8\u540c\u7684\u201c\u8ba2\u5355\u6570\u636e\u201d\u3002\u4f60\u4e0d\u80fd\u51ed\u7a7a\u521b\u9020\u6570\u636e\u6216\u9500\u6bc1\u6570\u636e\u3002<\/p>\n<h3>2. \u547d\u540d\u89c4\u8303<\/h3>\n<p>\u4e00\u81f4\u6027\u662f\u5173\u952e\u3002\u6240\u6709\u7ec4\u4ef6\u90fd\u5e94\u4f7f\u7528\u6807\u51c6\u5316\u7684\u547d\u540d\u89c4\u8303\u3002\u9664\u975e\u5728\u7ec4\u7ec7\u5185\u666e\u904d\u7406\u89e3\uff0c\u5426\u5219\u907f\u514d\u4f7f\u7528\u7f29\u5199\u3002\u786e\u4fdd\u4e00\u4e2a\u56fe\u8868\u4e2d\u6807\u8bb0\u4e3a\u201c\u53d1\u7968\u201d\u7684\u6570\u636e\u6d41\u5728\u53e6\u4e00\u4e2a\u56fe\u8868\u4e2d\u4e0d\u5e94\u6807\u8bb0\u4e3a\u201c\u8d26\u5355\u201d\u3002<\/p>\n<h3>3. \u907f\u514d\u63a7\u5236\u6d41<\/h3>\n<p>\u4e00\u4e2a\u5e38\u89c1\u9519\u8bef\u662f\u5c06\u63a7\u5236\u903b\u8f91\uff08if\/else\uff09\u6df7\u5165DFD\u4e2d\u3002DFD\u5c55\u793a\u7684\u662f\u6570\u636e\u6d41\u52a8\uff0c\u800c\u4e0d\u662f\u51b3\u7b56\u903b\u8f91\u3002\u5e94\u4f7f\u7528\u51b3\u7b56\u8868\u6216\u6d41\u7a0b\u56fe\u6765\u8868\u793a\u63a7\u5236\u903b\u8f91\u3002\u5728DFD\u4e2d\uff0c\u51b3\u7b56\u70b9\u7531\u4e00\u4e2a\u6839\u636e\u8f93\u5165\u8f93\u51fa\u4e0d\u540c\u6570\u636e\u6d41\u7684\u5904\u7406\u8fc7\u7a0b\u6765\u8868\u793a\u3002<\/p>\n<h3>4. \u6570\u636e\u5b58\u50a8\u8fde\u63a5\u6027<\/h3>\n<p>\u9664\u975e\u662f\u65b0\u521b\u5efa\u6216\u5f52\u6863\u7684\u6570\u636e\u5b58\u50a8\uff0c\u5426\u5219\u5fc5\u987b\u540c\u65f6\u5177\u6709\u8f93\u5165\u548c\u8f93\u51fa\u3002\u4ec5\u63a5\u6536\u6570\u636e\u7684\u5b58\u50a8\u662f\u9ed1\u6d1e\u3002\u4ec5\u63d0\u4f9b\u6570\u636e\u7684\u5b58\u50a8\u662f\u5947\u8ff9\uff08\u51ed\u7a7a\u521b\u9020\uff09\u3002\u4e24\u8005\u90fd\u8fdd\u80cc\u4e86\u7cfb\u7edf\u903b\u8f91\u3002<\/p>\n<h2>\ud83d\udea7 \u9700\u8981\u907f\u514d\u7684\u5e38\u89c1\u9519\u8bef<\/h2>\n<p>\u5373\u4f7f\u662f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u5efa\u6a21\u8005\u4e5f\u4f1a\u72af\u9519\u3002\u56de\u987e\u8fd9\u4e9b\u5e38\u89c1\u9677\u9631\u53ef\u4ee5\u5728\u5206\u6790\u9636\u6bb5\u8282\u7701\u65f6\u95f4\u3002<\/p>\n<ul>\n<li><strong>\u5e7d\u7075\u6d41\uff1a<\/strong>\u7ed8\u5236\u6ca1\u6709\u6570\u636e\u5b57\u5178\u5b9a\u4e49\u7684\u7bad\u5934\u3002<\/li>\n<li><strong>\u5b9e\u4f53\u5230\u5b9e\u4f53\u7684\u76f4\u63a5\u8fde\u63a5\uff1a<\/strong>\u5916\u90e8\u5b9e\u4f53\u4e0d\u5e94\u76f4\u63a5\u8fde\u63a5\u5230\u5176\u4ed6\u5916\u90e8\u5b9e\u4f53\u3002\u6240\u6709\u4ea4\u4e92\u90fd\u5fc5\u987b\u901a\u8fc7\u7cfb\u7edf\u5904\u7406\u8fc7\u7a0b\u3002<\/li>\n<li><strong>\u5904\u7406\u8fc7\u7a0b\u4e4b\u95f4\u7684\u5faa\u73af\uff1a<\/strong>\u907f\u514d\u51fa\u73b0\u65e0\u9650\u5faa\u73af\uff0c\u5373\u5904\u7406\u8fc7\u7a0bA\u5411\u5904\u7406\u8fc7\u7a0bB\u63d0\u4f9b\u6570\u636e\uff0c\u800c\u5904\u7406\u8fc7\u7a0bB\u53c8\u5411\u5904\u7406\u8fc7\u7a0bA\u63d0\u4f9b\u6570\u636e\uff0c\u4e2d\u95f4\u6ca1\u6709\u6570\u636e\u5b58\u50a8\u6216\u5916\u90e8\u5b9e\u4f53\u4ecb\u5165\u3002<\/li>\n<li><strong>\u8fc7\u5ea6\u62e5\u6324\uff1a<\/strong>\u5982\u679c\u4e00\u4e2a\u56fe\u4e2d\u6709\u8d85\u8fc77\u52309\u4e2a\u5904\u7406\u8fc7\u7a0b\uff0c\u5f88\u53ef\u80fd\u8fc7\u4e8e\u590d\u6742\u3002\u5e94\u4f7f\u7528\u66f4\u4f4e\u5c42\u7ea7\u7684\u56fe\u6765\u62c6\u5206\u89c6\u56fe\u3002<\/li>\n<li><strong>\u5ffd\u7565\u6570\u636e\u5b57\u5178\uff1a<\/strong>\u5728\u672a\u66f4\u65b0\u6570\u636e\u5b57\u5178\u7684\u60c5\u51b5\u4e0b\u521b\u5efa\u56fe\u8868\uff0c\u4f1a\u5bfc\u81f4\u540e\u7eed\u5b9e\u73b0\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udf10 \u5b9e\u9645\u793a\u4f8b\uff1a\u5728\u7ebf\u8ba2\u5355\u7cfb\u7edf<\/h2>\n<p>\u8ba9\u6211\u4eec\u5c06\u4e94\u4e2a\u7ec4\u4ef6\u5e94\u7528\u4e8e\u4e00\u4e2a\u5b9e\u9645\u573a\u666f\u3002\u8bbe\u60f3\u4e00\u4e2a\u7b80\u5316\u7684\u5728\u7ebf\u8ba2\u5355\u7cfb\u7edf\u3002<\/p>\n<h3>\u5916\u90e8\u5b9e\u4f53<\/h3>\n<ul>\n<li>\ud83d\udc64 \u5ba2\u6237<\/li>\n<li>\ud83c\udfe6 \u652f\u4ed8\u7f51\u5173<\/li>\n<\/ul>\n<h3>\u5904\u7406\u8fc7\u7a0b<\/h3>\n<ul>\n<li>1.0 \u63a5\u6536\u8ba2\u5355<\/li>\n<li>2.0 \u5904\u7406\u652f\u4ed8<\/li>\n<li>3.0 \u66f4\u65b0\u5e93\u5b58<\/li>\n<\/ul>\n<h3>\u6570\u636e\u5b58\u50a8<\/h3>\n<ul>\n<li>\ud83d\uddc4\ufe0f \u8ba2\u5355\u6570\u636e\u5e93<\/li>\n<li>\ud83d\udce6 \u5e93\u5b58\u8bb0\u5f55<\/li>\n<\/ul>\n<h3>\u6570\u636e\u6d41<\/h3>\n<ul>\n<li>\ud83d\ude9a \u8ba2\u5355\u8be6\u60c5\uff08\u5ba2\u6237 \u2192 \u5904\u7406\u8fc7\u7a0b 1.0\uff09<\/li>\n<li>\ud83d\ude9a \u652f\u4ed8\u786e\u8ba4\uff08\u5904\u7406\u8fc7\u7a0b 2.0 \u2192 \u652f\u4ed8\u7f51\u5173\uff09<\/li>\n<li>\ud83d\ude9a \u5e93\u5b58\u68c0\u67e5\uff08\u6d41\u7a0b 3.0 \u2192 \u5e93\u5b58\u8bb0\u5f55\uff09<\/li>\n<\/ul>\n<h3>\u6570\u636e\u5b57\u5178\u6761\u76ee<\/h3>\n<ul>\n<li><strong>\u8ba2\u5355\u8be6\u60c5\uff1a<\/strong> {\u8ba2\u5355ID\uff0c\u65e5\u671f\uff0c\u5ba2\u6237\u59d3\u540d\uff0c\u7269\u54c1\u5217\u8868\uff0c\u603b\u91d1\u989d}<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u4e0e\u5176\u4ed6\u6a21\u578b\u96c6\u6210<\/h2>\n<p>DFD\u5e76\u975e\u5b64\u7acb\u5b58\u5728\u3002\u5b83\u4eec\u901a\u5e38\u4e0e\u5176\u4ed6\u5efa\u6a21\u6280\u672f\u76f8\u8f85\u76f8\u6210\u3002<\/p>\n<ul>\n<li><strong>\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff08ERD\uff09\uff1a<\/strong> ERD\u5b9a\u4e49\u4e86DFD\u4e2d\u6240\u793a\u6570\u636e\u5b58\u50a8\u7684\u7ed3\u6784\u3002<\/li>\n<li><strong>\u72b6\u6001\u8f6c\u6362\u56fe\uff1a<\/strong> \u867d\u7136DFD\u5c55\u793a\u6570\u636e\u7684\u6d41\u52a8\uff0c\u4f46\u72b6\u6001\u56fe\u5c55\u793a\u5bf9\u8c61\u968f\u65f6\u95f4\u72b6\u6001\u7684\u53d8\u5316\u3002<\/li>\n<li><strong>\u7528\u4f8b\u56fe\uff1a<\/strong> \u7528\u4f8b\u63cf\u8ff0\u7528\u6237\u4ea4\u4e92\uff0c\u800cDFD\u5219\u63cf\u8ff0\u8fd9\u4e9b\u4ea4\u4e92\u80cc\u540e\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<h2>\ud83c\udfaf \u6700\u4f73\u5b9e\u8df5\u603b\u7ed3<\/h2>\n<p>\u4e3a\u786e\u4fdd\u60a8\u7684\u6570\u636e\u6d41\u56fe\u5177\u6709\u4ef7\u503c\uff0c\u8bf7\u7262\u8bb0\u4ee5\u4e0b\u539f\u5219\u3002<\/p>\n<ol>\n<li><strong>\u4ece\u7b80\u5355\u5f00\u59cb\uff1a<\/strong> \u4ece\u4e0a\u4e0b\u6587\u56fe\u5f00\u59cb\uff0c\u4ee5\u660e\u786e\u8fb9\u754c\u3002<\/li>\n<li><strong>\u5148\u5b9a\u4e49\u6570\u636e\uff1a<\/strong> \u5728\u7ed8\u5236\u6d41\u7a0b\u524d\uff0c\u5148\u66f4\u65b0\u6570\u636e\u5b57\u5178\u3002<\/li>\n<li><strong>\u68c0\u67e5\u4e00\u81f4\u6027\uff1a<\/strong> \u786e\u4fdd\u7236\u56fe\u4e0e\u5b50\u56fe\u5728\u6570\u636e\u8f93\u5165\/\u8f93\u51fa\u4e0a\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<li><strong>\u4fdd\u6301\u6574\u6d01\uff1a<\/strong> \u907f\u514d\u7ebf\u6761\u4ea4\u53c9\uff0c\u4fdd\u6301\u95f4\u8ddd\u4e00\u81f4\u3002<\/li>\n<li><strong>\u4e0e\u5229\u76ca\u76f8\u5173\u8005\u5171\u540c\u5ba1\u67e5\uff1a<\/strong> \u786e\u8ba4\u903b\u8f91\u6d41\u7a0b\u7b26\u5408\u4e1a\u52a1\u9884\u671f\u3002<\/li>\n<\/ol>\n<p>\u901a\u8fc7\u4e25\u683c\u5e94\u7528\u8fd9\u4e94\u4e2a\u7ec4\u6210\u90e8\u5206\u5e76\u9075\u5b88\u7ed3\u6784\u89c4\u5219\uff0c\u60a8\u5c06\u4e3a\u7cfb\u7edf\u5f00\u53d1\u521b\u5efa\u4e00\u4e2a\u7a33\u5065\u7684\u84dd\u56fe\u3002\u8fd9\u79cd\u6e05\u6670\u6027\u51cf\u5c11\u4e86\u6b67\u4e49\uff0c\u6700\u5c0f\u5316\u4e86\u8fd4\u5de5\uff0c\u5e76\u786e\u4fdd\u6700\u7ec8\u5b9e\u73b0\u4e0e\u9884\u671f\u7684\u6570\u636e\u67b6\u6784\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p>\u8bf7\u8bb0\u4f4f\uff0cDFD\u662f\u4e00\u4efd\u52a8\u6001\u6587\u6863\u3002\u968f\u7740\u9700\u6c42\u7684\u53d8\u5316\uff0c\u56fe\u8868\u5fc5\u987b\u968f\u4e4b\u6f14\u53d8\u4ee5\u53cd\u6620\u7cfb\u7edf\u7684\u5168\u65b0\u73b0\u5b9e\u3002\u5b9a\u671f\u7ef4\u62a4\u56fe\u8868\u53ca\u5176\u914d\u5957\u7684\u6570\u636e\u5b57\u5178\uff0c\u662f\u6210\u719f\u5206\u6790\u8fc7\u7a0b\u7684\u6807\u5fd7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u4fe1\u606f\u5728\u7cfb\u7edf\u4e2d\u6d41\u52a8\u65b9\u5f0f\u7684\u89c6\u89c9\u8868\u793a\u3002\u5b83\u5173\u6ce8\u7684\u4e0d\u662f\u7cfb\u7edf\u7684\u5916\u89c2\uff0c\u800c\u662f\u6570\u636e\u5982\u4f55\u88ab\u5904\u7406\u3001\u5b58\u50a8\u548c\u4f20\u8f93\u3002\u5bf9\u4e8e\u5206\u6790\u5e08\u548c\u67b6\u6784\u5e08\u800c\u8a00\uff0c\u638c\u63e1\u8fd9\u79cd\u8868\u793a\u6cd5\u5bf9\u4e8e\u7406\u89e3\u590d\u6742\u7684\u6d41\u7a0b\u81f3\u5173\u91cd\u8981\uff0c\u800c\u4e0d\u4f1a\u9677\u5165\u6280\u672f\u5b9e\u73b0\u7ec6\u8282\u7684\u6ce5\u6f6d\u3002 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