{"id":1795,"date":"2026-03-30T23:05:07","date_gmt":"2026-03-30T23:05:07","guid":{"rendered":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/"},"modified":"2026-03-30T23:05:07","modified_gmt":"2026-03-30T23:05:07","slug":"data-flow-diagram-basics-symbols-notations","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/","title":{"rendered":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5"},"content":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u4e2d\u7684\u57fa\u672c\u5de5\u5177\u3002\u5b83\u4ee5\u53ef\u89c6\u5316\u65b9\u5f0f\u5c55\u793a\u4fe1\u606f\u5728\u7cfb\u7edf\u4e2d\u7684\u6d41\u52a8\u8fc7\u7a0b\u3002\u4e0e\u4fa7\u91cd\u4e8e\u63a7\u5236\u6d41\u548c\u903b\u8f91\u7684\u6d41\u7a0b\u56fe\u4e0d\u540c\uff0cDFD\u66f4\u5f3a\u8c03\u6570\u636e\u7684\u8f6c\u6362\u3002\u672c\u6307\u5357\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u6784\u5efa\u51c6\u786e\u56fe\u8868\u6240\u9700\u7684\u6838\u5fc3\u7ec4\u4ef6\u3001\u8868\u793a\u98ce\u683c\u548c\u7ed3\u6784\u89c4\u5219\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Cartoon infographic explaining Data Flow Diagram basics: four core components (Process, Data Store, External Entity, Data Flow), three hierarchical levels (Context, Major Processes, Detailed), notation comparison (Gane &amp; Sarson vs Yourdon &amp; DeMarco), integrity rules, and common errors like black hole and miracle processes\" decoding=\"async\" src=\"https:\/\/www.viz-note.com\/wp-content\/uploads\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\u7406\u89e3DFD\u7684\u76ee\u7684 \ud83c\udfaf<\/h2>\n<p>\u5728\u9009\u62e9\u7b26\u53f7\u6216\u7ed8\u5236\u6d41\u7a0b\u4e4b\u524d\uff0c\u7406\u89e3\u56fe\u8868\u7684\u76ee\u6807\u81f3\u5173\u91cd\u8981\u3002DFD\u80fd\u591f\u56de\u7b54\u6709\u5173\u6570\u636e\u6d41\u52a8\u7684\u5177\u4f53\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u6570\u636e\u4ece\u4f55\u5904\u6765\uff1f<\/li>\n<li>\u6570\u636e\u662f\u5982\u4f55\u88ab\u8f6c\u6362\u7684\uff1f<\/li>\n<li>\u6570\u636e\u6700\u7ec8\u53bb\u5411\u4f55\u5904\uff1f<\/li>\n<li>\u54ea\u4e9b\u6570\u636e\u88ab\u5b58\u50a8\u4ee5\u4f9b\u5c06\u6765\u4f7f\u7528\uff1f<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u56fe\u8868\u5145\u5f53\u6280\u672f\u9700\u6c42\u4e0e\u4e1a\u52a1\u9700\u6c42\u4e4b\u95f4\u7684\u6865\u6881\u3002\u5b83\u4eec\u4f7f\u5229\u76ca\u76f8\u5173\u8005\u80fd\u591f\u5728\u65e0\u9700\u7406\u89e3\u5e95\u5c42\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u9a8c\u8bc1\u7cfb\u7edf\u662f\u5426\u80fd\u6b63\u786e\u5904\u7406\u4fe1\u606f\u3002\u901a\u8fc7\u5c06\u7cfb\u7edf\u53ef\u89c6\u5316\u4e3a\u4e00\u7cfb\u5217\u6d41\u7a0b\u548c\u6570\u636e\u6d41\uff0c\u5206\u6790\u4eba\u5458\u53ef\u4ee5\u5728\u5f00\u53d1\u751f\u547d\u5468\u671f\u7684\u65e9\u671f\u8bc6\u522b\u74f6\u9888\u3001\u7f3a\u5931\u6570\u636e\u6216\u5197\u4f59\u6b65\u9aa4\u3002<\/p>\n<h2>DFD\u7684\u56db\u4e2a\u6838\u5fc3\u7ec4\u4ef6 \ud83e\udde9<\/h2>\n<p>\u6bcf\u4e2a\u6570\u636e\u6d41\u56fe\u90fd\u4f9d\u8d56\u4e8e\u56db\u4e2a\u4e0d\u540c\u7684\u5143\u7d20\u3002\u8fd9\u4e9b\u7b26\u53f7\u5b9a\u4e49\u4e86\u7cfb\u7edf\u5185\u90e8\u7684\u884c\u4e3a\u548c\u5173\u7cfb\u3002\u638c\u63e1\u8fd9\u4e9b\u7ec4\u4ef6\u53ef\u786e\u4fdd\u56fe\u8868\u4fdd\u6301\u4e00\u81f4\uff0c\u5e76\u88ab\u6240\u6709\u56e2\u961f\u6210\u5458\u51c6\u786e\u7406\u89e3\u3002<\/p>\n<h3>1. \u5904\u7406\u8fc7\u7a0b\uff08\u8f6c\u6362\uff09 \u2699\ufe0f<\/h3>\n<p>\u5904\u7406\u8fc7\u7a0b\u8868\u793a\u6539\u53d8\u6570\u636e\u7684\u52a8\u4f5c\u6216\u529f\u80fd\u3002\u5b83\u63a5\u6536\u8f93\u5165\u6570\u636e\uff0c\u6267\u884c\u8ba1\u7b97\u6216\u8f6c\u6362\uff0c\u5e76\u751f\u6210\u8f93\u51fa\u6570\u636e\u3002\u5728DFD\u4e2d\uff0c\u5904\u7406\u8fc7\u7a0b\u5e76\u975e\u5b9e\u9645\u4ee3\u7801\uff0c\u800c\u662f\u6240\u6267\u884c\u7684\u903b\u8f91\u529f\u80fd\u3002<\/p>\n<ul>\n<li><strong>\u529f\u80fd\uff1a<\/strong>\u5c06\u8f93\u5165\u8f6c\u6362\u4e3a\u8f93\u51fa\u3002<\/li>\n<li><strong>\u6807\u8bc6\u7b26\uff1a<\/strong>\u6bcf\u4e2a\u5904\u7406\u8fc7\u7a0b\u90fd\u5fc5\u987b\u6709\u552f\u4e00\u7684\u540d\u79f0\u548c\u7f16\u53f7\u3002<\/li>\n<li><strong>\u52a8\u8bcd-\u540d\u8bcd\uff1a<\/strong>\u540d\u79f0\u901a\u5e38\u91c7\u7528\u52a8\u8bcd-\u540d\u8bcd\u7ed3\u6784\uff08\u4f8b\u5982\uff0c<em>\u8ba1\u7b97\u7a0e\u6b3e<\/em>, <em>\u9a8c\u8bc1\u7528\u6237<\/em>).<\/li>\n<li><strong>\u5206\u89e3\uff1a<\/strong>\u590d\u6742\u7684\u8fc7\u7a0b\u53ef\u4ee5\u5728\u4f4e\u5c42\u7ea7\u56fe\u8868\u4e2d\u5206\u89e3\u4e3a\u5b50\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n<h3>2. \u6570\u636e\u5b58\u50a8\uff08\u4ed3\u5e93\uff09 \ud83d\udcc2<\/h3>\n<p>\u6570\u636e\u5b58\u50a8\u8868\u793a\u6570\u636e\u9759\u6b62\u5b58\u653e\u7684\u4f4d\u7f6e\u3002\u5b83\u4fdd\u5b58\u5f53\u524d\u672a\u88ab\u5904\u7406\u4f46\u5c06\u6765\u9700\u8981\u7684\u4fe1\u606f\u3002\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2a\u6570\u636e\u5e93\u8868\u3001\u4e00\u4e2a\u6587\u4ef6\uff0c\u6216\u4e00\u4e2a\u5b9e\u4f53\u6587\u4ef6\u67dc\u3002<\/p>\n<ul>\n<li><strong>\u6301\u4e45\u6027\uff1a<\/strong>\u6570\u636e\u5728\u7cfb\u7edf\u4f1a\u8bdd\u4e4b\u95f4\u4fdd\u6301\u5b58\u50a8\u72b6\u6001\u3002<\/li>\n<li><strong>\u8bbf\u95ee\uff1a<\/strong> \u8fc7\u7a0b\u5fc5\u987b\u4ece\u5b58\u50a8\u5668\u8bfb\u53d6\u6216\u5411\u5b58\u50a8\u5668\u5199\u5165\u6570\u636e\u3002<\/li>\n<li><strong> \u65b9\u5411\uff1a<\/strong> \u6570\u636e\u5b58\u50a8\u4e0d\u4f1a\u521b\u5efa\u6570\u636e\uff1b\u5b83\u4eec\u4ec5\u7528\u4e8e\u4fdd\u5b58\u6570\u636e\u3002<\/li>\n<li><strong> \u547d\u540d\uff1a<\/strong> \u540d\u79f0\u5e94\u4e3a\u590d\u6570\u540d\u8bcd\uff08\u4f8b\u5982\uff0c<em>\u8ba2\u5355<\/em>, <em>\u5ba2\u6237<\/em>).<\/li>\n<\/ul>\n<h3>3. \u5916\u90e8\u5b9e\u4f53\uff08\u6e90\/\u6c47\uff09\ud83c\udf10<\/h3>\n<p>\u5916\u90e8\u5b9e\u4f53\u662f\u5f53\u524d\u7cfb\u7edf\u8fb9\u754c\u4e4b\u5916\u7684\u4e2a\u4eba\u3001\u7ec4\u7ec7\u6216\u7cfb\u7edf\u3002\u5b83\u5145\u5f53\u6570\u636e\u7684\u6765\u6e90\uff08\u8f93\u5165\uff09\u6216\u76ee\u7684\u5730\uff08\u8f93\u51fa\uff09\u3002<\/p>\n<ul>\n<li><strong> \u8fb9\u754c\uff1a<\/strong> \u56fe\u8868\u8303\u56f4\u4e4b\u5916\u7684\u4efb\u4f55\u4e8b\u7269\u90fd\u662f\u5916\u90e8\u5b9e\u4f53\u3002<\/li>\n<li><strong> \u89d2\u8272\uff1a<\/strong> \u53ef\u4ee5\u662f\u4eba\u7c7b\u7528\u6237\u3001\u7b2c\u4e09\u65b9API\u3001\u653f\u5e9c\u673a\u6784\u6216\u786c\u4ef6\u8bbe\u5907\u3002<\/li>\n<li><strong> \u4ea4\u4e92\uff1a<\/strong> \u6570\u636e\u5728\u7cfb\u7edf\u4e0e\u5b9e\u4f53\u4e4b\u95f4\u6d41\u52a8\u3002<\/li>\n<\/ul>\n<h3>4. \u6570\u636e\u6d41\uff08\u79fb\u52a8\uff09\u27a1\ufe0f<\/h3>\n<p>\u6570\u636e\u6d41\u8868\u793a\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4fe1\u606f\u6d41\u52a8\u3002\u5b83\u662f\u5c06\u56fe\u8868\u8fde\u63a5\u5728\u4e00\u8d77\u7684\u7ebd\u5e26\u3002\u7bad\u5934\u8868\u793a\u6570\u636e\u7684\u65b9\u5411\u3002<\/p>\n<ul>\n<li><strong> \u6807\u6ce8\uff1a<\/strong> \u6bcf\u4e2a\u7bad\u5934\u90fd\u5fc5\u987b\u6807\u6ce8\u6570\u636e\u5305\u7684\u540d\u79f0\u3002<\/li>\n<li><strong> \u539f\u5b50\u6027\uff1a<\/strong> \u5355\u4e2a\u6570\u636e\u6d41\u5e94\u4ec5\u643a\u5e26\u4e00\u4e2a\u903b\u8f91\u4e0a\u7684\u4fe1\u606f\u5355\u5143\u3002<\/li>\n<li><strong> \u65b9\u5411\uff1a<\/strong> \u5728\u6807\u51c6\u7684DFD\u4e2d\uff0c\u6570\u636e\u6d41\u662f\u5355\u5411\u7684\u3002<\/li>\n<li><strong> \u903b\u8f91\uff1a<\/strong> \u6570\u636e\u5fc5\u987b\u7ecf\u8fc7\u8fc7\u7a0b\u6d41\u52a8\uff1b\u5b83\u4e0d\u80fd\u5728\u6570\u636e\u5b58\u50a8\u4e4b\u95f4\u76f4\u63a5\u6d41\u52a8\u3002<\/li>\n<\/ul>\n<h2>\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7 \ud83d\udcc9<\/h2>\n<p>DFD\u5177\u6709\u5c42\u6b21\u6027\u3002\u5355\u4e00\u7cfb\u7edf\u8fc7\u4e8e\u590d\u6742\uff0c\u65e0\u6cd5\u5728\u5355\u4e00\u89c6\u56fe\u4e2d\u5c55\u793a\u3002\u56e0\u6b64\uff0c\u56fe\u8868\u88ab\u5206\u89e3\u4e3a\u4e0d\u540c\u8be6\u7ec6\u7a0b\u5ea6\u7684\u5c42\u7ea7\u3002\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u5206\u6790\u4eba\u5458\u80fd\u591f\u5728\u4fdd\u6301\u6574\u4f53\u7cfb\u7edf\u5b8c\u6574\u6027\u7684\u540c\u65f6\u7ba1\u7406\u590d\u6742\u6027\u3002<\/p>\n<h3>\u7b2c0\u5c42\uff1a\u4e0a\u4e0b\u6587\u56fe \ud83c\udf0d<\/h3>\n<p>\u4e0a\u4e0b\u6587\u56fe\u63d0\u4f9b\u4e86\u7cfb\u7edf\u7684\u6700\u9ad8\u5c42\u6b21\u89c6\u56fe\u3002\u5b83\u5b9a\u4e49\u4e86\u7cfb\u7edf\u8fb9\u754c\uff0c\u5e76\u5c55\u793a\u4e86\u7cfb\u7edf\u4e0e\u5916\u90e8\u5b9e\u4f53\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li><strong>\u5355\u4e00\u8fc7\u7a0b\uff1a<\/strong> \u6574\u4e2a\u7cfb\u7edf\u88ab\u8868\u793a\u4e3a\u4e00\u4e2a\u5355\u4e00\u8fc7\u7a0b\u3002<\/li>\n<li><strong> \u8f93\u5165\/\u8f93\u51fa\uff1a<\/strong> \u663e\u793a\u4e3b\u8981\u6570\u636e\u8fdb\u5165\u548c\u79bb\u5f00\u7cfb\u7edf\u7684\u60c5\u51b5\u3002<\/li>\n<li><strong> \u8303\u56f4\uff1a<\/strong> \u786e\u7acb\u9879\u76ee\u7684\u8fb9\u754c\u3002<\/li>\n<\/ul>\n<h3>\u7b2c1\u7ea7\uff1a\u4e3b\u8981\u8fc7\u7a0b \ud83d\udd0d<\/h3>\n<p>\u7b2c1\u7ea7\u5c06\u4e0a\u4e0b\u6587\u56fe\u4e2d\u7684\u5355\u4e00\u8fc7\u7a0b\u5206\u89e3\u4e3a\u4e3b\u8981\u5b50\u8fc7\u7a0b\u3002\u5b83\u5c55\u793a\u4e86\u6784\u6210\u7cfb\u7edf\u7684\u4e3b\u529f\u80fd\u3002<\/p>\n<ul>\n<li><strong>\u6269\u5c55\uff1a<\/strong> \u4e3b\u8fc7\u7a0b\u88ab\u62c6\u5206\u4e3a3\u52307\u4e2a\u4e3b\u8981\u8fc7\u7a0b\u3002<\/li>\n<li><strong> \u5f15\u5165\u6570\u636e\u5b58\u50a8\uff1a<\/strong> \u5f15\u5165\u6570\u636e\u5b58\u50a8\u4ee5\u663e\u793a\u4fe1\u606f\u4fdd\u5b58\u7684\u4f4d\u7f6e\u3002<\/li>\n<li><strong> \u8be6\u7ec6\u7a0b\u5ea6\uff1a<\/strong> \u63d0\u4f9b\u8db3\u591f\u7684\u7ec6\u8282\u4ee5\u7406\u89e3\u4e3b\u8981\u903b\u8f91\uff0c\u800c\u4e0d\u4f1a\u9677\u5165\u8fc7\u4e8e\u7e41\u7410\u7684\u7ec6\u8282\u3002<\/li>\n<\/ul>\n<h3>\u7b2c2\u7ea7\uff1a\u8be6\u7ec6\u8fc7\u7a0b \ud83d\udee0\ufe0f<\/h3>\n<p>\u7b2c2\u7ea7\u8fdb\u4e00\u6b65\u5c06\u7b2c1\u7ea7\u4e2d\u7684\u7279\u5b9a\u8fc7\u7a0b\u8fdb\u884c\u5206\u89e3\u3002\u8fd9\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u903b\u8f91\u5b9a\u4e49\u7684\u590d\u6742\u533a\u57df\u3002<\/p>\n<ul>\n<li><strong> \u7ec6\u7c92\u5ea6\uff1a<\/strong> \u805a\u7126\u4e8e\u7279\u5b9a\u7684\u5de5\u4f5c\u6d41\u6216\u6a21\u5757\u3002<\/li>\n<li><strong> \u9a8c\u8bc1\uff1a<\/strong> \u786e\u4fdd\u6240\u6709\u6570\u636e\u6d41\u4e0e\u7236\u8fc7\u7a0b\u4fdd\u6301\u5e73\u8861\u3002<\/li>\n<li><strong> \u5b9e\u65bd\uff1a<\/strong> \u5e38\u88ab\u7528\u4f5c\u5f00\u53d1\u4eba\u5458\u7684\u76f4\u63a5\u53c2\u8003\u3002<\/li>\n<\/ul>\n<h2>\u7b26\u53f7\u98ce\u683c\uff1a\u5bf9\u6bd4\u6307\u5357 \ud83d\udd04<\/h2>\n<p>DFD\u4e3b\u8981\u4f7f\u7528\u4e24\u79cd\u7b26\u53f7\u8868\u793a\u6cd5\u3002\u5c3d\u7ba1\u5b83\u4eec\u4f20\u8fbe\u76f8\u540c\u7684\u903b\u8f91\u4fe1\u606f\uff0c\u4f46\u7b26\u53f7\u7684\u89c6\u89c9\u8868\u73b0\u5f62\u5f0f\u4e0d\u540c\u3002\u5728\u4e0e\u5177\u6709\u7279\u5b9a\u89c4\u8303\u7684\u56e2\u961f\u534f\u4f5c\u65f6\uff0c\u7406\u89e3\u8fd9\u4e9b\u5dee\u5f02\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7ec4\u4ef6<\/th>\n<th>Gane &amp; Sarson<\/th>\n<th>Yourdon &amp; DeMarco<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8fc7\u7a0b<\/td>\n<td>\u5706\u89d2\u77e9\u5f62<\/td>\n<td>\u5706\u6216\u5706\u89d2\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u5b58\u50a8<\/td>\n<td>\u5f00\u53e3\u77e9\u5f62\uff08\u4e24\u6761\u5e73\u884c\u7ebf\uff09<\/td>\n<td>\u53f3\u4fa7\u5f00\u53e3\u7684\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u90e8\u5b9e\u4f53<\/td>\n<td>\u77e9\u5f62<\/td>\n<td>\u77e9\u5f62<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u6d41<\/td>\n<td>\u7bad\u5934<\/td>\n<td>\u7bad\u5934<\/td>\n<\/tr>\n<tr>\n<td>\u8fde\u63a5\u5668<\/td>\n<td>\u7bad\u5934<\/td>\n<td>\u7bad\u5934<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u52a0\u6069\u4e0e\u8428\u5c14\u68ee\uff1a<\/strong> \u8fd9\u79cd\u7b26\u53f7\u5728\u5317\u7f8e\u548c\u6b27\u6d32\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u5b83\u7528\u5706\u89d2\u77e9\u5f62\u8868\u793a\u8fc7\u7a0b\uff0c\u7528\u7279\u5b9a\u7684\u53cc\u7ebf\u5f62\u72b6\u8868\u793a\u6570\u636e\u5b58\u50a8\u3002\u5b83\u5f3a\u8c03\u8fc7\u7a0b\u4f5c\u4e3a\u903b\u8f91\u5bb9\u5668\u7684\u4f5c\u7528\u3002<\/p>\n<p><strong>\u5c24\u5c14\u4e39\u4e0e\u5fb7\u9a6c\u79d1\uff1a<\/strong> \u8fd9\u79cd\u7b26\u53f7\u8d77\u6e90\u8f83\u65e9\uff0c\u5e38\u89c1\u4e8e\u5b66\u672f\u754c\u548c\u9057\u7559\u7cfb\u7edf\u4e2d\u3002\u5b83\u7528\u5706\u8868\u793a\u8fc7\u7a0b\uff0c\u6570\u636e\u5b58\u50a8\u7528\u7f3a\u4e00\u8fb9\u7684\u77e9\u5f62\u8868\u793a\u3002\u4e24\u79cd\u7b26\u53f7\u90fd\u6709\u6548\uff0c\u4f46\u5728\u4e00\u4e2a\u9879\u76ee\u4e2d\u5fc5\u987b\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<h2>\u6570\u636e\u6d41\u5b8c\u6574\u6027\u89c4\u5219 \u2696\ufe0f<\/h2>\n<p>\u4e3a\u786e\u4fdd\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u5728\u903b\u8f91\u4e0a\u5408\u7406\uff0c\u5fc5\u987b\u9075\u5faa\u7279\u5b9a\u89c4\u5219\u3002\u8fdd\u53cd\u8fd9\u4e9b\u89c4\u5219\u4f1a\u9020\u6210\u6b67\u4e49\uff0c\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u8bbe\u8ba1\u5931\u8d25\u3002\u8fd9\u4e9b\u89c4\u5219\u63a7\u5236\u7740\u6570\u636e\u7684\u6d41\u52a8\u4e0e\u8f6c\u6362\u65b9\u5f0f\u3002<\/p>\n<h3>1. \u5e73\u8861\u89c4\u5219 \u2696\ufe0f<\/h3>\n<p>\u5728\u4ece\u4e00\u4e2a\u5c42\u7ea7\u5206\u89e3\u5230\u4e0b\u4e00\u4e2a\u5c42\u7ea7\u7684\u56fe\u793a\u8fc7\u7a0b\u4e2d\uff0c\u8f93\u5165\u548c\u8f93\u51fa\u5fc5\u987b\u4fdd\u6301\u4e00\u81f4\u3002\u8fd9\u88ab\u79f0\u4e3a\u6570\u636e\u6d41\u5e73\u8861\u3002<\/p>\n<ul>\n<li>\u5982\u679c\u7236\u8fc7\u7a0b\u7684\u8f93\u5165\u4e3a<em>\u8ba2\u5355\u6570\u636e<\/em>\uff0c\u5b50\u56fe\u5fc5\u987b\u5305\u542b\u63a5\u6536<em>\u8ba2\u5355\u6570\u636e<\/em>.<\/li>\n<li>\u5b50\u56fe\u4e2d\u4e0d\u80fd\u51fa\u73b0\u7236\u56fe\u4e2d\u4e0d\u5b58\u5728\u7684\u65b0\u8f93\u5165\u3002<\/li>\n<li>\u5206\u89e3\u8fc7\u7a0b\u4e2d\u5fc5\u987b\u4fdd\u7559\u539f\u6709\u7684\u8f93\u51fa\u3002<\/li>\n<\/ul>\n<h3>2. \u7981\u6b62\u76f4\u63a5\u7684\u6570\u636e\u5b58\u50a8\u5230\u6570\u636e\u5b58\u50a8\u7684\u6d41\u52a8 \ud83d\udeab<\/h3>\n<p>\u6570\u636e\u4e0d\u80fd\u76f4\u63a5\u4ece\u4e00\u4e2a\u6570\u636e\u5b58\u50a8\u6d41\u5411\u53e6\u4e00\u4e2a\u6570\u636e\u5b58\u50a8\u3002\u5fc5\u987b\u5b58\u5728\u4e00\u4e2a\u8fc7\u7a0b\u6765\u8f6c\u6362\u6216\u79fb\u52a8\u6570\u636e\u3002<\/p>\n<ul>\n<li><strong>\u539f\u56e0\uff1a<\/strong> \u6570\u636e\u79fb\u52a8\u901a\u5e38\u9700\u8981\u903b\u8f91\u5904\u7406\uff08\u4f8b\u5982\uff0c\u66f4\u65b0\u8bb0\u5f55\u3001\u590d\u5236\u6587\u4ef6\uff09\u3002<\/li>\n<li><strong>\u542b\u4e49\uff1a<\/strong> \u6bcf\u6b21\u4fe1\u606f\u4f20\u9012\u90fd\u5fc5\u987b\u5305\u542b\u4e00\u4e2a\u5904\u7406\u6b65\u9aa4\u3002<\/li>\n<\/ul>\n<h3>3. \u6570\u636e\u6d41\u547d\u540d\u89c4\u8303 \ud83c\udff7\ufe0f<\/h3>\n<p>\u6570\u636e\u6d41\u4e0a\u7684\u6807\u7b7e\u5fc5\u987b\u5177\u6709\u63cf\u8ff0\u6027\u4e14\u4e3a\u5355\u6570\u5f62\u5f0f\u3002<\/p>\n<ul>\n<li><strong>\u5355\u4e00\u6982\u5ff5\uff1a<\/strong> \u4e00\u4e2a\u6807\u8bb0\u4e3a<em>\u5ba2\u6237\u4fe1\u606f<\/em> \u8868\u793a\u4e00\u4e2a\u7279\u5b9a\u7684\u6570\u636e\u5305\uff0c\u800c\u975e\u6240\u6709\u5ba2\u6237\u6570\u636e\u7684\u6d41\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\uff1a<\/strong> \u540c\u4e00\u6570\u636e\u5305\u5728\u6240\u6709\u56fe\u8868\u4e2d\u5e94\u4f7f\u7528\u76f8\u540c\u7684\u540d\u79f0\u3002<\/li>\n<li><strong>\u65e0\u63a7\u5236\u6d41\uff1a<\/strong> \u4e0d\u8981\u4f7f\u7528\u903b\u8f91\uff08\u4f8b\u5982\uff0c<em>\u662f\/\u5426<\/em>\uff09\u3002DFD \u4e13\u6ce8\u4e8e\u6570\u636e\uff0c\u800c\u975e\u63a7\u5236\u3002<\/li>\n<\/ul>\n<h3>4. \u6570\u636e\u5b58\u50a8\u903b\u8f91 \ud83d\uddc4\ufe0f<\/h3>\n<p>\u6570\u636e\u5b58\u50a8\u5fc5\u987b\u4ee5\u903b\u8f91\u65b9\u5f0f\u8bbf\u95ee\u3002<\/p>\n<ul>\n<li><strong>\u8bfb\/\u5199\uff1a<\/strong> \u4e00\u4e2a\u8fc7\u7a0b\u5e94\u8868\u660e\u5b83\u662f\u4ece\u5b58\u50a8\u4e2d\u8bfb\u53d6\u8fd8\u662f\u5199\u5165\u5b58\u50a8\u3002<\/li>\n<li><strong>\u5b58\u5728\u6027\uff1a<\/strong> \u6570\u636e\u5b58\u50a8\u5fc5\u987b\u81f3\u5c11\u88ab\u4e00\u4e2a\u8fc7\u7a0b\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u9694\u79bb\u6027\uff1a<\/strong> \u6ca1\u6709\u8d1f\u8d23\u7ba1\u7406\u6570\u636e\u7684\u8fc7\u7a0b\uff0c\u5b58\u50a8\u5c31\u65e0\u6cd5\u5b58\u5728\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u7684 DFD \u9519\u8bef\u4e0e\u9677\u9631 \ud83d\udea8<\/h2>\n<p>\u5373\u4f7f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u5206\u6790\u5e08\u5728\u6784\u5efa\u56fe\u8868\u65f6\u4e5f\u53ef\u80fd\u51fa\u9519\u3002\u8bc6\u522b\u8fd9\u4e9b\u5e38\u89c1\u9519\u8bef\u6709\u52a9\u4e8e\u8c03\u8bd5\u548c\u9a8c\u8bc1\u7cfb\u7edf\u8bbe\u8ba1\u3002<\/p>\n<h3>1. \u9ed1\u6d1e\u8fc7\u7a0b \u26ab<\/h3>\n<p>\u9ed1\u6d1e\u662f\u4e00\u4e2a\u6709\u8f93\u5165\u4f46\u65e0\u8f93\u51fa\u7684\u8fc7\u7a0b\u3002\u5b83\u6d88\u8017\u6570\u636e\u5374\u4e0d\u4ea7\u751f\u4efb\u4f55\u7ed3\u679c\u3002<\/p>\n<ul>\n<li><strong>\u542b\u4e49\uff1a<\/strong> \u7cfb\u7edf\u5728\u6d88\u8017\u8d44\u6e90\u5374\u672a\u63d0\u4f9b\u4ef7\u503c\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u786e\u5b9a\u8be5\u8fc7\u7a0b\u5e94\u4ea7\u751f\u7684\u5185\u5bb9\uff0c\u5e76\u6dfb\u52a0\u5fc5\u8981\u7684\u6570\u636e\u6d41\u3002<\/li>\n<\/ul>\n<h3>2. \u5947\u8ff9\u8fc7\u7a0b \u2728<\/h3>\n<p>\u5947\u8ff9\u8fc7\u7a0b\u4e0e\u9ed1\u6d1e\u76f8\u53cd\u3002\u5b83\u6709\u8f93\u51fa\u4f46\u6ca1\u6709\u8f93\u5165\uff0c\u80fd\u591f\u51ed\u7a7a\u521b\u9020\u6570\u636e\u3002<\/p>\n<ul>\n<li><strong>\u542b\u4e49\uff1a<\/strong> \u7cfb\u7edf\u5728\u6ca1\u6709\u6570\u636e\u6765\u6e90\u7684\u60c5\u51b5\u4e0b\u751f\u6210\u6570\u636e\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u5c06\u6570\u636e\u7684\u6765\u6e90\u8ffd\u6eaf\u5230\u5916\u90e8\u5b9e\u4f53\u6216\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<\/ul>\n<h3>3. \u7070\u6d1e\u8fc7\u7a0b \ud83c\udf2b\ufe0f<\/h3>\n<p>\u5f53\u4e00\u4e2a\u8fc7\u7a0b\u5728\u5206\u89e3\u8fc7\u7a0b\u4e2d\u8f93\u5165\u4e0e\u8f93\u51fa\u5728\u6570\u91cf\u6216\u7c7b\u578b\u4e0a\u4e0d\u5339\u914d\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u7070\u6d1e\u3002<\/p>\n<ul>\n<li><strong>\u542b\u4e49\uff1a<\/strong> \u6570\u636e\u5728\u4e0d\u540c\u5c42\u7ea7\u4e4b\u95f4\u51fa\u73b0\u4e0d\u4e00\u81f4\u5730\u6d88\u5931\u6216\u51fa\u73b0\u3002<\/li>\n<li><strong>\u4fee\u590d\uff1a<\/strong> \u786e\u4fdd\u5206\u89e3\u8fc7\u7a0b\u4fdd\u7559\u7236\u5c42\u7ea7\u7684\u6240\u6709\u6570\u636e\u6d41\u3002<\/li>\n<\/ul>\n<h3>4. \u6570\u636e\u6d41\u4ea4\u53c9 \u2935\ufe0f<\/h3>\n<p>\u867d\u7136\u5e76\u975e\u603b\u662f\u7981\u6b62\uff0c\u4f46\u6570\u636e\u6d41\u4ea4\u53c9\u4f1a\u4f7f\u56fe\u8868\u96be\u4ee5\u9605\u8bfb\u3002<\/p>\n<ul>\n<li><strong>\u6e05\u6670\u5ea6\uff1a<\/strong> \u5c3d\u53ef\u80fd\u4f7f\u7528\u8fde\u63a5\u5668\u5c06\u7ebf\u6761\u7ed5\u8fc7\u4ea4\u53c9\u70b9\u3002<\/li>\n<li><strong>\u5e03\u5c40\uff1a<\/strong> \u5b89\u6392\u8fc7\u7a0b\u548c\u5b58\u50a8\u4ee5\u5c3d\u91cf\u51cf\u5c11\u7ebf\u6761\u4ea4\u53c9\u3002<\/li>\n<\/ul>\n<h2>\u6570\u636e\u6d41\u56fe\u4e0e\u6570\u636e\u5b57\u5178 \ud83d\udcda<\/h2>\n<p>\u6570\u636e\u6d41\u56fe\u65e0\u6cd5\u72ec\u7acb\u5b58\u5728\u3002\u5b83\u9700\u8981\u6570\u636e\u5b57\u5178\u6765\u5b9a\u4e49\u56fe\u4e2d\u6d41\u52a8\u6570\u636e\u7684\u7cbe\u786e\u7ed3\u6784\u3002\u6570\u636e\u5b57\u5178\u662f\u5173\u4e8e\u7cfb\u7edf\u4e2d\u4f7f\u7528\u6570\u636e\u5143\u7d20\u7684\u4fe1\u606f\u5e93\u3002<\/p>\n<ul>\n<li><strong>\u5b9a\u4e49\uff1a<\/strong> \u6307\u5b9a\u6bcf\u4e2a\u6570\u636e\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3001\u957f\u5ea6\u548c\u683c\u5f0f\u3002<\/li>\n<li><strong>\u5173\u7cfb\uff1a<\/strong> \u5c06\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7279\u5b9a\u7684\u6570\u636e\u5e93\u5b57\u6bb5\u5173\u8054\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\uff1a<\/strong> \u786e\u4fdd\u6570\u636e\u6d41\u56fe\u7bad\u5934\u4e0a\u7684\u6807\u7b7e\u4e0e\u5b57\u5178\u4e2d\u7684\u5b9a\u4e49\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<p>\u6ca1\u6709\u6570\u636e\u5b57\u5178\uff0c\u6570\u636e\u6d41\u56fe\u4ec5\u662f\u4e00\u4e2a\u9ad8\u5c42\u6b21\u7684\u62bd\u8c61\u3002\u6709\u4e86\u5b83\uff0c\u56fe\u8868\u5c31\u6210\u4e3a\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u5e94\u7528\u903b\u8f91\u7684\u84dd\u56fe\u3002\u8fd9\u79cd\u96c6\u6210\u786e\u4fdd\u4e86\u89c6\u89c9\u6a21\u578b\u80fd\u591f\u51c6\u786e\u8f6c\u5316\u4e3a\u6280\u672f\u5b9e\u73b0\u3002<\/p>\n<h2>\u7ef4\u62a4\u7684\u6700\u4f73\u5b9e\u8df5 \ud83d\udee1\ufe0f<\/h2>\n<p>\u7cfb\u7edf\u4f1a\u968f\u65f6\u95f4\u6f14\u53d8\u3002\u5fc5\u987b\u7ef4\u62a4\u6570\u636e\u6d41\u56fe\u4ee5\u53cd\u6620\u9700\u6c42\u6216\u67b6\u6784\u7684\u53d8\u5316\u3002<\/p>\n<ul>\n<li><strong>\u7248\u672c\u63a7\u5236\uff1a<\/strong>\u8ddf\u8e2a\u56fe\u8868\u7248\u672c\u4ee5\u7ba1\u7406\u53d8\u66f4\u3002<\/li>\n<li><strong>\u53d8\u66f4\u5f71\u54cd\uff1a<\/strong> \u5f53\u4e00\u4e2a\u8fc7\u7a0b\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u68c0\u67e5\u6240\u6709\u76f8\u5173\u7684\u6570\u636e\u6d41\u548c\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<li><strong>\u8bc4\u5ba1\u5468\u671f\uff1a<\/strong> \u4e0e\u5229\u76ca\u76f8\u5173\u8005\u5b9a\u671f\u8fdb\u884c\u8bc4\u5ba1\uff0c\u4ee5\u786e\u4fdd\u56fe\u8868\u4e0e\u5b9e\u9645\u60c5\u51b5\u4e00\u81f4\u3002<\/li>\n<li><strong> \u6587\u6863\uff1a<\/strong> \u4f7f\u7528\u6ce8\u91ca\u6807\u6ce8\u56fe\u8868\uff0c\u89e3\u91ca\u590d\u6742\u7684\u903b\u8f91\u3002<\/li>\n<\/ul>\n<h2>\u7cfb\u7edf\u5efa\u6a21\u603b\u7ed3 \ud83c\udfc1<\/h2>\n<p>\u521b\u5efa\u6570\u636e\u6d41\u56fe\u662f\u4e00\u9879\u9700\u8981\u6ce8\u91cd\u7ec6\u8282\u5e76\u9075\u5b88\u7ed3\u6784\u89c4\u5219\u7684\u4e25\u8c28\u6d3b\u52a8\u3002\u901a\u8fc7\u4f7f\u7528\u6b63\u786e\u7684\u7b26\u53f7\u5e76\u9075\u5faa\u5e73\u8861\u89c4\u5219\uff0c\u5206\u6790\u4eba\u5458\u53ef\u4ee5\u6e05\u6670\u5730\u63cf\u7ed8\u51fa\u7cfb\u7edf\u884c\u4e3a\u3002Gane &amp; Sarson \u4e0e Yourdon &amp; DeMarco \u7b26\u53f7\u4f53\u7cfb\u4e4b\u95f4\u7684\u533a\u522b\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\uff0c\u4f46\u4e00\u81f4\u6027\u59cb\u7ec8\u662f\u9996\u8981\u539f\u5219\u3002\u907f\u514d\u5e38\u89c1\u7684\u9519\u8bef\uff08\u5982\u9ed1\u6d1e\u548c\u5947\u8ff9\uff09\u53ef\u786e\u4fdd\u903b\u8f91\u5b8c\u6574\u6027\u3002\u5f53\u4e0e\u6570\u636e\u5b57\u5178\u7ed3\u5408\u4f7f\u7528\u65f6\uff0c\u6570\u636e\u6d41\u56fe\u4fbf\u6210\u4e3a\u5b9a\u4e49\u7cfb\u7edf\u9700\u6c42\u548c\u6307\u5bfc\u5f00\u53d1\u7684\u5f3a\u5927\u5de5\u5177\u3002<\/p>\n<p>\u6570\u636e\u6d41\u56fe\u7684\u4ef7\u503c\u5728\u4e8e\u5b83\u80fd\u591f\u5411\u975e\u6280\u672f\u5229\u76ca\u76f8\u5173\u8005\u6e05\u6670\u4f20\u8fbe\u590d\u6742\u7684\u6570\u636e\u6d41\u52a8\u3002\u5b83\u5c06\u7cfb\u7edf\u7b80\u5316\u4e3a\u6613\u4e8e\u7406\u89e3\u7684\u7ec4\u6210\u90e8\u5206\uff0c\u4ece\u800c\u5728\u6574\u4e2a\u9879\u76ee\u751f\u547d\u5468\u671f\u4e2d\u4fc3\u8fdb\u66f4\u597d\u7684\u51b3\u7b56\u3002\u65e0\u8bba\u662f\u8bbe\u8ba1\u65b0\u5e94\u7528\u8fd8\u662f\u5206\u6790\u73b0\u6709\u7cfb\u7edf\uff0c\u6570\u636e\u6d41\u56fe\u7684\u539f\u5219\u90fd\u4e3a\u7cfb\u7edf\u5206\u6790\u63d0\u4f9b\u4e86\u7a33\u5b9a\u7684\u57fa\u7840\u3002<\/p>\n<h2>\u6838\u5fc3\u8981\u70b9\u603b\u7ed3 \u2705<\/h2>\n<ul>\n<li><strong>\u6838\u5fc3\u8981\u7d20\uff1a<\/strong> \u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u3001\u5916\u90e8\u5b9e\u4f53\u548c\u6570\u636e\u6d41\u6784\u6210\u4e86\u6bcf\u4e2a\u56fe\u8868\u7684\u57fa\u7840\u3002<\/li>\n<li><strong> \u5c42\u6b21\u7ed3\u6784\uff1a<\/strong> \u4f7f\u7528\u7b2c0\u30011\u30012\u5c42\u6765\u7ba1\u7406\u590d\u6742\u6027\u548c\u7ec6\u8282\u3002<\/li>\n<li><strong> \u7b26\u53f7\u4f53\u7cfb\uff1a<\/strong> \u9009\u62e9\u4e00\u79cd\u6807\u51c6\uff08Gane &amp; Sarson \u6216 Yourdon &amp; DeMarco\uff09\u5e76\u575a\u6301\u4f7f\u7528\u3002<\/li>\n<li><strong> \u5b8c\u6574\u6027\uff1a<\/strong> \u786e\u4fdd\u7236\u56fe\u4e0e\u5b50\u56fe\u4e4b\u95f4\u7684\u6240\u6709\u6570\u636e\u6d41\u4fdd\u6301\u5e73\u8861\u3002<\/li>\n<li><strong> \u903b\u8f91\uff1a<\/strong> \u907f\u514d\u51fa\u73b0\u5947\u8ff9\u548c\u9ed1\u6d1e\u7b49\u6570\u636e\u6d41\u9519\u8bef\u3002<\/li>\n<li><strong> \u6587\u6863\uff1a<\/strong> \u59cb\u7ec8\u5c06\u6570\u636e\u6d41\u56fe\u7684\u5143\u7d20\u4e0e\u6570\u636e\u5b57\u5178\u5173\u8054\u3002<\/li>\n<\/ul>\n<p> \u5e94\u7528\u8fd9\u4e9b\u539f\u5219\u53ef\u786e\u4fdd\u6700\u7ec8\u6587\u6863\u51c6\u786e\u3001\u53ef\u7ef4\u62a4\uff0c\u5e76\u5bf9\u6574\u4e2a\u5f00\u53d1\u56e2\u961f\u5177\u6709\u5b9e\u7528\u4ef7\u503c\u3002\u4e00\u4e2a\u6784\u5efa\u826f\u597d\u7684\u6570\u636e\u6d41\u56fe\u80fd\u591f\u51cf\u5c11\u6b67\u4e49\uff0c\u5e76\u4f7f\u6280\u672f\u5b9e\u73b0\u4e0e\u4e1a\u52a1\u76ee\u6807\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u4e2d\u7684\u57fa\u672c\u5de5\u5177\u3002\u5b83\u4ee5\u53ef\u89c6\u5316\u65b9&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1796,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca","_yoast_wpseo_metadesc":"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane & Sarson \u4ee5\u53ca Yourdon & DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[96],"tags":[89,95],"class_list":["post-1795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dfd","tag-academic","tag-dfd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca<\/title>\n<meta name=\"description\" content=\"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane &amp; Sarson \u4ee5\u53ca Yourdon &amp; DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca\" \/>\n<meta property=\"og:description\" content=\"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane &amp; Sarson \u4ee5\u53ca Yourdon &amp; DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\" \/>\n<meta property=\"og:site_name\" content=\"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-30T23:05:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpadmin\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/d69595112293b803501f7b381be28255\"},\"headline\":\"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5\",\"datePublished\":\"2026-03-30T23:05:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\"},\"wordCount\":33,\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\",\"keywords\":[\"academic\",\"dfd\"],\"articleSection\":[\"DFD\"],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\",\"url\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\",\"name\":\"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\",\"datePublished\":\"2026-03-30T23:05:07+00:00\",\"description\":\"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane & Sarson \u4ee5\u53ca Yourdon & DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage\",\"url\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\",\"contentUrl\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.viz-note.com\/cn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#website\",\"url\":\"https:\/\/www.viz-note.com\/cn\/\",\"name\":\"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.viz-note.com\/cn\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#organization\",\"name\":\"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates\",\"url\":\"https:\/\/www.viz-note.com\/cn\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-viz-note-logo.png\",\"contentUrl\":\"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-viz-note-logo.png\",\"width\":512,\"height\":512,\"caption\":\"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/cn\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/d69595112293b803501f7b381be28255\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.viz-note.com\"],\"url\":\"https:\/\/www.viz-note.com\/cn\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca","description":"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane & Sarson \u4ee5\u53ca Yourdon & DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/","og_locale":"zh_CN","og_type":"article","og_title":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca","og_description":"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane & Sarson \u4ee5\u53ca Yourdon & DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002","og_url":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/","og_site_name":"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates","article_published_time":"2026-03-30T23:05:07+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"vpadmin"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#article","isPartOf":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/d69595112293b803501f7b381be28255"},"headline":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5","datePublished":"2026-03-30T23:05:07+00:00","mainEntityOfPage":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/"},"wordCount":33,"publisher":{"@id":"https:\/\/www.viz-note.com\/cn\/#organization"},"image":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg","keywords":["academic","dfd"],"articleSection":["DFD"],"inLanguage":"zh-Hans"},{"@type":"WebPage","@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/","url":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/","name":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u6307\u5357 \ud83d\udcca","isPartOf":{"@id":"https:\/\/www.viz-note.com\/cn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage"},"image":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg","datePublished":"2026-03-30T23:05:07+00:00","description":"\u5b66\u4e60\u6570\u636e\u6d41\u56fe\u7684\u7b26\u53f7\u4e0e\u7b26\u53f7\u4f53\u7cfb\u3002\u672c\u6307\u5357\u5168\u9762\u4ecb\u7ecd\u6570\u636e\u6d41\u56fe\u7684\u5c42\u7ea7\u3001Gane & Sarson \u4ee5\u53ca Yourdon & DeMarco \u98ce\u683c\uff0c\u9002\u7528\u4e8e\u7cfb\u7edf\u5206\u6790\u3002","breadcrumb":{"@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/"]}]},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#primaryimage","url":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg","contentUrl":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/data-flow-diagram-basics-symbols-notations-cartoon-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.viz-note.com\/cn\/data-flow-diagram-basics-symbols-notations\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.viz-note.com\/cn\/"},{"@type":"ListItem","position":2,"name":"\u6570\u636e\u6d41\u56fe\u57fa\u7840\uff1a\u7b26\u53f7\u4e0e\u8868\u793a\u6cd5"}]},{"@type":"WebSite","@id":"https:\/\/www.viz-note.com\/cn\/#website","url":"https:\/\/www.viz-note.com\/cn\/","name":"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates","description":"","publisher":{"@id":"https:\/\/www.viz-note.com\/cn\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.viz-note.com\/cn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-Hans"},{"@type":"Organization","@id":"https:\/\/www.viz-note.com\/cn\/#organization","name":"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates","url":"https:\/\/www.viz-note.com\/cn\/","logo":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.viz-note.com\/cn\/#\/schema\/logo\/image\/","url":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-viz-note-logo.png","contentUrl":"https:\/\/www.viz-note.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/cropped-viz-note-logo.png","width":512,"height":512,"caption":"Viz Note Simplified Chinese - AI Insights &amp; Software Industry Updates"},"image":{"@id":"https:\/\/www.viz-note.com\/cn\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/d69595112293b803501f7b381be28255","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.viz-note.com\/cn\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.viz-note.com"],"url":"https:\/\/www.viz-note.com\/cn\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/posts\/1795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/comments?post=1795"}],"version-history":[{"count":0,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/posts\/1795\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/media\/1796"}],"wp:attachment":[{"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/media?parent=1795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/categories?post=1795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.viz-note.com\/cn\/wp-json\/wp\/v2\/tags?post=1795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}