{"id":562,"date":"2026-03-21T15:50:50","date_gmt":"2026-03-21T15:50:50","guid":{"rendered":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/"},"modified":"2026-03-21T15:50:50","modified_gmt":"2026-03-21T15:50:50","slug":"understanding-external-entities-data-flow","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/","title":{"rendered":"DFD\u6307\u5357\uff1a\u7406\u89e3\u6570\u636e\u6d41\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Kawaii-style infographic illustrating external entities in Data Flow Diagrams (DFDs), showing entity types (human users, external systems, organizations, physical objects), system boundaries, notation standards (Gane &amp; Sarson rectangles, Yourdon &amp; DeMarco squares), labeled data flow arrows, and best practices for naming and modeling external entities in system architecture documentation\" decoding=\"async\" src=\"https:\/\/www.visualize-ai.com\/wp-content\/uploads\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg\"\/><\/figure>\n<\/div>\n<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u4f5c\u4e3a\u7406\u89e3\u4fe1\u606f\u5982\u4f55\u5728\u7cfb\u7edf\u4e2d\u6d41\u52a8\u7684\u84dd\u56fe\u3002\u8fd9\u4e9b\u56fe\u8868\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u5173\u952e\u7ec4\u4ef6\uff1a\u5916\u90e8\u5b9e\u4f53\u3002\u8fd9\u4e9b\u5143\u7d20\u5b9a\u4e49\u4e86\u88ab\u5efa\u6a21\u7cfb\u7edf\u4e0e\u5916\u90e8\u4e16\u754c\u4e4b\u95f4\u7684\u8fb9\u754c\u3002\u5982\u679c\u6ca1\u6709\u5bf9\u8fd9\u4e9b\u5b9e\u4f53\u8fdb\u884c\u6e05\u6670\u5b9a\u4e49\uff0c\u6570\u636e\u6d41\u5c06\u7f3a\u4e4f\u4e0a\u4e0b\u6587\uff0c\u7cfb\u7edf\u67b6\u6784\u4e5f\u4f1a\u53d8\u5f97\u6a21\u7cca\u3002\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5916\u90e8\u5b9e\u4f53\u7684\u673a\u5236\u3001\u5b9a\u4e49\u4ee5\u53ca\u5efa\u6a21\u7b56\u7565\uff0c\u4ee5\u786e\u4fdd\u7cfb\u7edf\u6587\u6863\u7684\u7cbe\u786e\u6027\u3002<\/p>\n<h2>\u4ec0\u4e48\u5b9a\u4e49\u4e86\u5916\u90e8\u5b9e\u4f53\uff1f \ud83c\udfaf<\/h2>\n<p>\u5916\u90e8\u5b9e\u4f53\u901a\u5e38\u88ab\u79f0\u4e3a\u53c2\u4e0e\u8005\u3001\u6570\u636e\u6e90\u6216\u6570\u636e\u63a5\u6536\u7aef\uff0c\u4ee3\u8868\u4e0e\u5f53\u524d\u5206\u6790\u7cfb\u7edf\u8fdb\u884c\u4ea4\u4e92\u7684\u4e2a\u4eba\u3001\u7ec4\u7ec7\u6216\u7cfb\u7edf\u3002\u5b83\u4eec\u5b58\u5728\u4e8e\u7cfb\u7edf\u8fb9\u754c\u4e4b\u5916\uff0c\u4f46\u5bf9\u7cfb\u7edf\u7684\u8fd0\u884c\u81f3\u5173\u91cd\u8981\u3002\u5728\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u7684\u8bed\u5883\u4e2d\uff0c\u7cfb\u7edf\u8fb9\u754c\u5c06\u5185\u90e8\u5904\u7406\u8fc7\u7a0b\u4e0e\u5916\u90e8\u5f71\u54cd\u5206\u79bb\u5f00\u6765\u3002\u4efb\u4f55\u63d0\u4f9b\u8f93\u5165\u6570\u636e\u6216\u63a5\u6536\u8f93\u51fa\u6570\u636e\u7684\u5b9e\u4f53\u90fd\u5c5e\u4e8e\u8fd9\u4e00\u7c7b\u522b\u3002<\/p>\n<p>\u53ef\u4ee5\u5c06\u5916\u90e8\u5b9e\u4f53\u89c6\u4e3a\u4e00\u4e2a\u4e0d\u53c2\u4e0e\u5f53\u524d\u6a21\u578b\u7279\u5b9a\u8303\u56f4\u5185\u6570\u636e\u5904\u7406\u7684\u53c2\u4e0e\u8005\u3002\u4f8b\u5982\uff0c\u5728\u56fe\u4e66\u9986\u7ba1\u7406\u7cfb\u7edf\u4e2d\uff0c\u56fe\u4e66\u7ba1\u7406\u5458\u5c31\u662f\u5916\u90e8\u5b9e\u4f53\u3002\u4ed6\u4eec\u8f93\u5165\u4e66\u7c4d\u4fe1\u606f\u5e76\u63a5\u6536\u501f\u9605\u8bb0\u5f55\uff0c\u4f46\u8ba1\u7b97\u7f5a\u6b3e\u6216\u9884\u8ba2\u4e66\u7c4d\u7684\u5185\u90e8\u903b\u8f91\u53d1\u751f\u5728\u7cfb\u7edf\u5185\u90e8\uff0c\u800c\u975e\u56fe\u4e66\u7ba1\u7406\u5458\u81ea\u8eab\u3002\u8be5\u5b9e\u4f53\u53d1\u8d77\u4ea4\u4e92\u6216\u63a5\u6536\u7ed3\u679c\u3002<\/p>\n<ul>\n<li><strong>\u6570\u636e\u6e90\uff1a<\/strong> \u4e00\u4e2a\u4ea7\u751f\u6d41\u5165\u7cfb\u7edf\u6570\u636e\u7684\u5b9e\u4f53\u3002<\/li>\n<li><strong> \u6570\u636e\u63a5\u6536\u7aef\uff1a<\/strong> \u4e00\u4e2a\u63a5\u6536\u4ece\u7cfb\u7edf\u6d41\u51fa\u6570\u636e\u7684\u5b9e\u4f53\u3002<\/li>\n<li><strong> \u4e24\u8005\u517c\u5177\uff1a<\/strong> \u4e00\u4e2a\u5b9e\u4f53\u53ef\u4ee5\u540c\u65f6\u5145\u5f53\u6570\u636e\u6e90\u548c\u6570\u636e\u63a5\u6536\u7aef\uff0c\u4ee5\u591a\u79cd\u65b9\u5f0f\u4ea4\u4e92\u3002<\/li>\n<\/ul>\n<p>\u6b63\u786e\u8bc6\u522b\u8fd9\u4e9b\u5b9e\u4f53\u662f\u57fa\u7840\u3002\u5982\u679c\u5b9e\u4f53\u4f4d\u7f6e\u9519\u8bef\uff0c\u6570\u636e\u6d41\u7bad\u5934\u5c06\u6307\u5411\u9519\u8bef\u7684\u5730\u65b9\uff0c\u5bfc\u81f4\u5728\u5f00\u53d1\u6216\u5b9e\u65bd\u9636\u6bb5\u4ea7\u751f\u6df7\u6dc6\u3002<\/p>\n<h2>\u8fb9\u754c\u7684\u4f5c\u7528 \ud83d\udea7<\/h2>\n<p>\u7cfb\u7edf\u8fb9\u754c\u7684\u6982\u5ff5\u662f\u5b9a\u4e49\u5916\u90e8\u5b9e\u4f53\u7684\u6838\u5fc3\u3002\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u5e76\u975e\u6574\u4e2a\u5b87\u5b99\u7684\u56fe\u793a\uff0c\u800c\u662f\u5bf9\u7279\u5b9a\u7cfb\u7edf\u7684\u805a\u7126\u89c6\u56fe\u3002\u8fb9\u754c\u662f\u56f4\u7ed5\u6570\u636e\u8f6c\u6362\u8fc7\u7a0b\u7ed8\u5236\u7684\u7ebf\u6761\u3002\u7ebf\u6761\u5185\u90e8\u7684\u4e00\u5207\u90fd\u5c5e\u4e8e\u7cfb\u7edf\uff0c\u5916\u90e8\u7684\u4e00\u5207\u90fd\u662f\u5916\u90e8\u7684\u3002<\/p>\n<p>\u5728\u5efa\u6a21\u65f6\uff0c\u5fc5\u987b\u51b3\u5b9a\u54ea\u4e9b\u5185\u5bb9\u5c5e\u4e8e\u5185\u90e8\uff0c\u54ea\u4e9b\u5c5e\u4e8e\u5916\u90e8\u3002\u8fd9\u4e00\u51b3\u7b56\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u8303\u56f4\u3002\u4f8b\u5982\uff0c\u5728\u94f6\u884c\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5ba2\u6237\u662f\u5916\u90e8\u5b9e\u4f53\u3002\u7136\u800c\uff0c\u5982\u679c\u8303\u56f4\u6269\u5927\u5230\u5305\u542b\u6574\u4e2a\u94f6\u884c\u57fa\u7840\u8bbe\u65bd\uff0c\u5ba2\u6237\u53ef\u80fd\u6210\u4e3a\u66f4\u5e7f\u6cdb\u7cfb\u7edf\u4e2d\u7684\u5185\u90e8\u90e8\u5206\uff0c\u5c3d\u7ba1\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u7528\u6237\u4ecd\u88ab\u89c6\u4e3a\u8f6f\u4ef6\u7cfb\u7edf\u4e4b\u5916\u7684\u5b9e\u4f53\u3002<\/p>\n<p>\u8fb9\u754c\u786e\u4fdd\u4e86\u6a21\u578b\u7684\u53ef\u7ba1\u7406\u6027\u3002\u5b83\u9632\u6b62\u56fe\u8868\u53d8\u6210\u65e0\u7a77\u65e0\u5c3d\u7684\u5916\u90e8\u4f9d\u8d56\u94fe\u3002\u901a\u8fc7\u660e\u786e\u6807\u8bb0\u8fb9\u754c\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u6e05\u695a\u5730\u77e5\u9053\u54ea\u4e9b\u8fc7\u7a0b\u662f\u5185\u90e8\u7684\uff0c\u54ea\u4e9b\u6570\u636e\u6e90\u5fc5\u987b\u4ece\u5916\u90e8\u67e5\u8be2\u3002<\/p>\n<h2>\u5916\u90e8\u53c2\u4e0e\u8005\u7684\u7c7b\u578b \ud83d\udc65<\/h2>\n<p>\u5916\u90e8\u5b9e\u4f53\u4e0d\u4ec5\u9650\u4e8e\u4eba\u7c7b\u7528\u6237\u3002\u5b83\u4eec\u5305\u62ec\u5404\u79cd\u5f62\u5f0f\u7684\u4ea4\u4e92\u70b9\u3002\u8bc6\u522b\u5b9e\u4f53\u7684\u7c7b\u578b\u6709\u52a9\u4e8e\u7406\u89e3\u6570\u636e\u4ea4\u6362\u7684\u6027\u8d28\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b9e\u4f53\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4eba\u7c7b\u7528\u6237<\/td>\n<td>\u4e0e\u7cfb\u7edf\u76f4\u63a5\u4ea4\u4e92\u7684\u4e2a\u4eba\u3002<\/td>\n<td>\u7ba1\u7406\u5458\u3001\u5ba2\u6237\u3001\u5458\u5de5<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u90e8\u7cfb\u7edf<\/td>\n<td>\u53e6\u4e00\u4e2a\u8f6f\u4ef6\u5e94\u7528\u7a0b\u5e8f\u6216\u786c\u4ef6\u8bbe\u5907\u3002<\/td>\n<td>\u652f\u4ed8\u7f51\u5173\u3001\u5ba2\u6237\u5173\u7cfb\u7ba1\u7406\u5de5\u5177<\/td>\n<\/tr>\n<tr>\n<td>\u7ec4\u7ec7<\/td>\n<td>\u53d1\u9001\u6216\u63a5\u6536\u6570\u636e\u7684\u516c\u53f8\u6216\u90e8\u95e8\u3002<\/td>\n<td>\u4f9b\u5e94\u5546\u3001\u76d1\u7ba1\u673a\u6784<\/td>\n<\/tr>\n<tr>\n<td>\u7269\u7406\u5bf9\u8c61<\/td>\n<td>\u89e6\u53d1\u6570\u636e\u8f93\u5165\u6216\u63a5\u6536\u8f93\u51fa\u7684\u6709\u5f62\u7269\u54c1\u3002<\/td>\n<td>\u626b\u63cf\u4eea\u3001\u6253\u5370\u673a\u3001\u4f20\u611f\u5668<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7406\u89e3\u8fd9\u4e9b\u533a\u522b\u5bf9\u4e8e\u96c6\u6210\u89c4\u5212\u81f3\u5173\u91cd\u8981\u3002\u4eba\u7c7b\u7528\u6237\u53ef\u80fd\u9700\u8981\u56fe\u5f62\u754c\u9762\uff0c\u800c\u5916\u90e8\u7cfb\u7edf\u53ef\u80fd\u9700\u8981API\u6216\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\u3002DFD\u6355\u6349\u7684\u662f\u903b\u8f91\u6d41\u7a0b\uff0c\u4f46\u4e86\u89e3\u5b9e\u4f53\u7c7b\u578b\u6709\u52a9\u4e8e\u6280\u672f\u5b9e\u73b0\u3002<\/p>\n<h2>\u89c6\u89c9\u7b26\u53f7\u6807\u51c6 \ud83d\udcd0<\/h2>\n<p>DFD\u4e3b\u8981\u4f7f\u7528\u4e24\u79cd\u7b26\u53f7\u8868\u793a\u6cd5\u3002\u6bcf\u79cd\u4f7f\u7528\u4e0d\u540c\u7684\u5f62\u72b6\u6765\u8868\u793a\u5916\u90e8\u5b9e\u4f53\u3002\u9009\u62e9\u4e00\u79cd\u6807\u51c6\u5e76\u8d2f\u7a7f\u6574\u4e2a\u6587\u6863\u4fdd\u6301\u4e00\u81f4\u975e\u5e38\u91cd\u8981\uff0c\u4ee5\u907f\u514d\u6df7\u6dc6\u3002<\/p>\n<h3>\u76d6\u6069\u4e0e\u8428\u5c14\u68ee\u7b26\u53f7\u6cd5<\/h3>\n<p>\u5728\u8fd9\u79cd\u98ce\u683c\u4e2d\uff0c\u5916\u90e8\u5b9e\u4f53\u7528\u77e9\u5f62\u8868\u793a\u3002\u5b9e\u4f53\u7684\u540d\u79f0\u653e\u5728\u65b9\u6846\u5185\u3002\u8fd9\u79cd\u7b26\u53f7\u6cd5\u5728\u4f01\u4e1a\u73af\u5883\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u3002\u77e9\u5f62\u6697\u793a\u4e86\u4e00\u4e2a\u5bb9\u5668\u6216\u4e00\u4e2a\u72ec\u7acb\u7684\u7ec4\u7ec7\u5355\u5143\u3002<\/p>\n<h3>\u5c24\u5c14\u767b\u4e0e\u5fb7\u9a6c\u79d1\u7b26\u53f7\u6cd5<\/h3>\n<p>\u8fd9\u79cd\u98ce\u683c\u4f7f\u7528\u65b9\u5f62\u6765\u8868\u793a\u5916\u90e8\u5b9e\u4f53\u3002\u867d\u7136\u89c6\u89c9\u4e0a\u76f8\u4f3c\uff0c\u4f46\u91cd\u70b9\u7565\u6709\u4e0d\u540c\u3002\u4e00\u4e9b\u56e2\u961f\u66f4\u559c\u6b22\u65b9\u5f62\uff0c\u56e0\u4e3a\u5b83\u4e0e\u7528\u4e8e\u8868\u793a\u8fc7\u7a0b\u7684\u5706\u89d2\u77e9\u5f62\u5f62\u6210\u9c9c\u660e\u5bf9\u6bd4\u3002\u65e0\u8bba\u5f62\u72b6\u5982\u4f55\uff0c\u5176\u529f\u80fd\u5b8c\u5168\u76f8\u540c\uff1a\u6807\u8bb0\u7cfb\u7edf\u7684\u8fb9\u754c\u3002<\/p>\n<p>\u4e00\u81f4\u6027\u81f3\u5173\u91cd\u8981\u3002\u5728\u4e00\u4e2a\u56fe\u4e2d\u6df7\u5408\u4f7f\u7528\u4e0d\u540c\u7b26\u53f7\u6cd5\u53ef\u80fd\u5bfc\u81f4\u8bef\u89e3\u3002\u5982\u679c\u56e2\u961f\u91c7\u7528\u76d6\u6069\u4e0e\u8428\u5c14\u68ee\u7b26\u53f7\u6cd5\uff0c\u6240\u6709\u56fe\u8868\u90fd\u5e94\u4f7f\u7528\u77e9\u5f62\u8868\u793a\u5b9e\u4f53\u3002\u5982\u679c\u9879\u76ee\u4e2d\u9014\u66f4\u6362\u7b26\u53f7\u6cd5\uff0c\u5219\u9700\u8981\u5bf9\u6240\u6709\u6587\u6863\u8fdb\u884c\u5168\u9762\u5ba1\u67e5\u3002<\/p>\n<h2>\u8fde\u63a5\u5b9e\u4f53\u4e0e\u8fc7\u7a0b \ud83d\udd17<\/h2>\n<p>\u6570\u636e\u6d41\u5c06\u5b9e\u4f53\u4e0e\u8fc7\u7a0b\u8fde\u63a5\u8d77\u6765\u3002\u8fd9\u4e9b\u6d41\u8868\u793a\u6570\u636e\u7684\u79fb\u52a8\uff0c\u800c\u975e\u7269\u7406\u5bf9\u8c61\u7684\u79fb\u52a8\u3002\u4ece\u5916\u90e8\u5b9e\u4f53\u6307\u5411\u8fc7\u7a0b\u7684\u7bad\u5934\u8868\u793a\u8be5\u5b9e\u4f53\u6b63\u5728\u63d0\u4f9b\u8be5\u8fc7\u7a0b\u6240\u9700\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u76f8\u53cd\uff0c\u4ece\u8fc7\u7a0b\u6307\u5411\u5916\u90e8\u5b9e\u4f53\u7684\u7bad\u5934\u8868\u793a\u7cfb\u7edf\u6b63\u5728\u5c06\u4fe1\u606f\u8fd4\u56de\u7ed9\u6765\u6e90\u3002\u91cd\u8981\u7684\u662f\u8981\u8bb0\u4f4f\uff0c\u6570\u636e\u4e0d\u80fd\u76f4\u63a5\u4ece\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\u6d41\u5411\u53e6\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\uff0c\u800c\u5fc5\u987b\u7ecf\u8fc7\u81f3\u5c11\u4e00\u4e2a\u8fc7\u7a0b\u3002\u8fd9\u786e\u4fdd\u4e86\u7cfb\u7edf\u5bf9\u6570\u636e\u6267\u884c\u67d0\u79cd\u5f62\u5f0f\u7684\u8f6c\u6362\u6216\u9a8c\u8bc1\u3002<\/p>\n<ul>\n<li><strong>\u8f93\u5165\u6d41\uff1a<\/strong> \u4ece\u5b9e\u4f53\u8fdb\u5165\u7cfb\u7edf\u7684\u6570\u636e\u3002<\/li>\n<li><strong> \u8f93\u51fa\u6d41\uff1a<\/strong> \u79bb\u5f00\u7cfb\u7edf\u6d41\u5411\u5b9e\u4f53\u7684\u6570\u636e\u3002<\/li>\n<li><strong> \u9a8c\u8bc1\uff1a<\/strong> \u8be5\u8fc7\u7a0b\u901a\u5e38\u5728\u5b58\u50a8\u6216\u8fdb\u4e00\u6b65\u5904\u7406\u4e4b\u524d\u68c0\u67e5\u4f20\u5165\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>\u6bcf\u4e2a\u7bad\u5934\u90fd\u5fc5\u987b\u6709\u6807\u7b7e\u3002\u8be5\u6807\u7b7e\u63cf\u8ff0\u4e86\u6b63\u5728\u79fb\u52a8\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u6807\u7b7e\u53ef\u4ee5\u662f\u201c\u8ba2\u5355\u8be6\u60c5\u201d\u6216\u201c\u652f\u4ed8\u786e\u8ba4\u201d\u3002\u50cf\u201c\u6570\u636e\u201d\u6216\u201c\u4fe1\u606f\u201d\u8fd9\u6837\u6a21\u7cca\u7684\u6807\u7b7e\u4f1a\u964d\u4f4e\u56fe\u8868\u7684\u6e05\u6670\u5ea6\uff0c\u5e76\u5728\u5ba1\u8ba1\u6216\u5ba1\u67e5\u8fc7\u7a0b\u4e2d\u963b\u788d\u7406\u89e3\u3002<\/p>\n<h2>\u547d\u540d\u89c4\u8303\u4e0e\u6e05\u6670\u6027 \ud83c\udff7\ufe0f<\/h2>\n<p>\u6b63\u786e\u547d\u540d\u5916\u90e8\u5b9e\u4f53\u662f\u4e00\u79cd\u6700\u4f73\u5b9e\u8df5\uff0c\u6709\u52a9\u4e8e\u957f\u671f\u7ef4\u62a4\u3002\u540d\u79f0\u5e94\u4e3a\u540d\u8bcd\uff0c\u800c\u975e\u52a8\u8bcd\u3002\u5b9e\u4f53\u662f\u4e00\u4e2a\u4e8b\u7269\u6216\u4e00\u4e2a\u4eba\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u52a8\u4f5c\u3002\u4f8b\u5982\uff0c\u5e94\u4f7f\u7528\u201c\u5ba2\u6237\u201d\u800c\u975e\u201c\u5ba2\u6237\u670d\u52a1\u201d\u3002<\/p>\n<p>\u540d\u79f0\u5728DFD\u5c42\u6b21\u7ed3\u6784\u7684\u4e0d\u540c\u5c42\u7ea7\u4e4b\u95f4\u4e5f\u5e94\u4fdd\u6301\u4e00\u81f4\u3002\u5982\u679c0\u7ea7\u56fe\u4e2d\u663e\u793a\u4e3a\u201c\u4f9b\u5e94\u5546\u201d\uff0c1\u7ea7\u5206\u89e3\u4e0d\u5e94\u5c06\u5176\u91cd\u547d\u540d\u4e3a\u201c\u4f9b\u5e94\u5546\u201d\uff0c\u9664\u975e\u8fd9\u79cd\u533a\u522b\u81f3\u5173\u91cd\u8981\u3002\u66f4\u6539\u540d\u79f0\u4f1a\u9020\u6210\u8131\u8282\uff0c\u4f7f\u8ffd\u8e2a\u6570\u636e\u5728\u7cfb\u7edf\u4e2d\u7684\u6d41\u52a8\u53d8\u5f97\u56f0\u96be\u3002<\/p>\n<p>\u9664\u975e\u5728\u7ec4\u7ec7\u5185\u666e\u904d\u7406\u89e3\uff0c\u5426\u5219\u5e94\u907f\u514d\u4f7f\u7528\u7f29\u5199\u3002\u4f7f\u7528\u201cHR\u201d\u4ee3\u66ff\u201c\u4eba\u529b\u8d44\u6e90\u201d\u53ef\u80fd\u4f1a\u8ba9\u65b0\u6210\u5458\u611f\u5230\u56f0\u60d1\u3002\u5168\u79f0\u80fd\u63d0\u4f9b\u4e0a\u4e0b\u6587\u5e76\u51cf\u5c11\u6b67\u4e49\u3002<\/p>\n<h2>\u5b9e\u9645\u5efa\u6a21\u573a\u666f \ud83c\udfe2<\/h2>\n<p>\u4e3a\u4e86\u8bf4\u660e\u8fd9\u4e9b\u6982\u5ff5\uff0c\u8003\u8651\u4e00\u4e2a\u5728\u7ebf\u8d2d\u7269\u5e73\u53f0\u3002\u8be5\u7cfb\u7edf\u5904\u7406\u8ba2\u5355\u3001\u7ba1\u7406\u5e93\u5b58\u5e76\u5904\u7406\u53d1\u8d27\u3002<\/p>\n<p><strong>\u573a\u666f1\uff1a\u5ba2\u6237<\/strong><br \/>\n\u5ba2\u6237\u662f\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\u3002\u4ed6\u4eec\u53d1\u9001\u8ba2\u5355\u8bf7\u6c42\u5e76\u63a5\u6536\u53d1\u8d27\u66f4\u65b0\u3002\u4ed6\u4eec\u4e0d\u4f1a\u5728\u5185\u90e8\u5904\u7406\u8ba2\u5355\uff1b\u7cfb\u7edf\u4f1a\u5b8c\u6210\u8fd9\u9879\u5de5\u4f5c\u3002<\/p>\n<p><strong>\u573a\u666f2\uff1a\u652f\u4ed8\u7f51\u5173<\/strong><br \/>\n\u8fd9\u662f\u4e00\u4e2a\u5916\u90e8\u7cfb\u7edf\u3002\u5b83\u4ece\u7ed3\u8d26\u6d41\u7a0b\u63a5\u6536\u652f\u4ed8\u8be6\u60c5\uff0c\u5e76\u8fd4\u56de\u6210\u529f\u6216\u5931\u8d25\u7684\u4ee4\u724c\u3002\u5b83\u662f\u5916\u90e8\u7684\uff0c\u56e0\u4e3a\u5b83\u7531\u7b2c\u4e09\u65b9\u7ba1\u7406\uff0c\u800c\u975e\u5e73\u53f0\u5f00\u53d1\u8005\u3002<\/p>\n<p><strong>\u573a\u666f3\uff1a\u4ed3\u5e93<\/strong><br \/>\n\u6839\u636e\u8303\u56f4\u7684\u4e0d\u540c\uff0c\u4ed3\u5e93\u53ef\u80fd\u662f\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\u3002\u5982\u679c\u7cfb\u7edf\u4ec5\u8ddf\u8e2a\u8ba2\u5355\uff0c\u800c\u4ed3\u5e93\u8d1f\u8d23\u7269\u7406\u7ba1\u7406\u5e93\u5b58\uff0c\u90a3\u4e48\u4ed3\u5e93\u5c31\u662f\u5e93\u5b58\u66f4\u65b0\u7684\u5916\u90e8\u6765\u6e90\u3002<\/p>\n<p>\u901a\u8fc7\u7ed8\u5236\u8fd9\u4e9b\u573a\u666f\uff0c\u56e2\u961f\u53ef\u4ee5\u8bc6\u522b\u51fa\u6240\u6709\u5fc5\u8981\u7684\u96c6\u6210\u3002DFD\u6210\u4e3a\u975e\u6280\u672f\u4eba\u5458\u4e4b\u95f4\u6c9f\u901a\u7684\u5de5\u5177\u3002<\/p>\n<h2>\u533a\u5206\u5b9e\u4f53\u4e0e\u5176\u4ed6\u5143\u7d20 \u2696\ufe0f<\/h2>\n<p>\u5efa\u6a21\u4e2d\u7684\u4e00\u4e2a\u5e38\u89c1\u6311\u6218\u662f\u533a\u5206\u5916\u90e8\u5b9e\u4f53\u4e0e\u6570\u636e\u5b58\u50a8\u3002\u6570\u636e\u5b58\u50a8\u5728\u7cfb\u7edf\u5185\u90e8\u4fdd\u5b58\u6570\u636e\uff0c\u4f8b\u5982\u6570\u636e\u5e93\u8868\u3002\u5916\u90e8\u5b9e\u4f53\u5728\u7cfb\u7edf\u5916\u90e8\u4fdd\u5b58\u6570\u636e\u6216\u751f\u6210\u6570\u636e\u3002<\/p>\n<p>\u5982\u679c\u6570\u636e\u88ab\u6c38\u4e45\u4fdd\u5b58\u4ee5\u4f9b\u7cfb\u7edf\u65e5\u540e\u4f7f\u7528\uff0c\u5219\u5e94\u5b58\u5165\u6570\u636e\u5b58\u50a8\u3002\u5982\u679c\u6570\u636e\u53ea\u662f\u88ab\u4f20\u9012\u6216\u6765\u81ea\u5916\u90e8\uff0c\u5219\u5c5e\u4e8e\u5b9e\u4f53\u3002\u53e6\u4e00\u4e2a\u533a\u522b\u662f\u5b9e\u4f53\u4e0e\u8fc7\u7a0b\u4e4b\u95f4\u7684\u533a\u522b\u3002\u8fc7\u7a0b\u4f1a\u8f6c\u6362\u6570\u636e\u3002\u5b9e\u4f53\u4e0d\u4f1a\u8f6c\u6362\u6570\u636e\uff0c\u5b83\u4ec5\u63d0\u4f9b\u6216\u63a5\u6536\u6570\u636e\u3002\u5982\u679c\u4e00\u4e2a\u5b9e\u4f53\u6267\u884c\u4e86\u91cd\u8981\u903b\u8f91\uff0c\u5e94\u5c06\u5176\u5efa\u6a21\u4e3a\u4e00\u4e2a\u72ec\u7acb\u7684\u7cfb\u7edf\u6216\u8fc7\u7a0b\u3002<\/p>\n<h2>\u4e0e\u6570\u636e\u5b58\u50a8\u7684\u96c6\u6210 \ud83d\uddc4\ufe0f<\/h2>\n<p>\u867d\u7136\u5b9e\u4f53\u4e0d\u4f1a\u5728\u5185\u90e8\u5b58\u50a8\u6570\u636e\uff0c\u4f46\u5b83\u4eec\u901a\u5e38\u95f4\u63a5\u4e0e\u6570\u636e\u5b58\u50a8\u4ea4\u4e92\u3002\u4f8b\u5982\uff0c\u5916\u90e8\u5b9e\u4f53\u53ef\u80fd\u89e6\u53d1\u4e00\u4e2a\u66f4\u65b0\u6570\u636e\u5b58\u50a8\u7684\u8fc7\u7a0b\u3002\u5b9e\u4f53\u662f\u89e6\u53d1\u8005\uff1b\u6570\u636e\u5b58\u50a8\u662f\u8bb0\u5fc6\u4f53\u3002<\/p>\n<p>\u7406\u89e3\u8fd9\u79cd\u5173\u7cfb\u6709\u52a9\u4e8e\u6570\u636e\u5e93\u8bbe\u8ba1\u3002\u5982\u679c\u5916\u90e8\u5b9e\u4f53\u9891\u7e41\u53d1\u9001\u67d0\u79cd\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\uff0c\u76f8\u5e94\u7684\u6570\u636e\u5b58\u50a8\u5fc5\u987b\u4f18\u5316\u4ee5\u5904\u7406\u8be5\u8f93\u5165\u3002DFD\u4e0d\u663e\u793a\u6570\u636e\u5e93\u6a21\u5f0f\uff0c\u4f46\u5b83\u5c55\u793a\u4e86\u5176\u5b58\u5728\u7684\u903b\u8f91\u5fc5\u8981\u6027\u3002<\/p>\n<p>\u5f53\u4ece\u56fe\u8868\u4e2d\u79fb\u9664\u4e00\u4e2a\u5916\u90e8\u5b9e\u4f53\u65f6\uff0c\u4e0e\u5176\u8fde\u63a5\u7684\u8fc7\u7a0b\u53ef\u80fd\u53d8\u6210\u5b64\u7acb\u7684\u3002\u8fd9\u8868\u660e\u7cfb\u7edf\u53ef\u80fd\u4e0d\u5b8c\u6574\uff0c\u6216\u9700\u8981\u8c03\u6574\u8303\u56f4\u3002\u79fb\u9664\u4e00\u4e2a\u5b9e\u4f53\u5e38\u5e38\u4f1a\u63ed\u793a\u9690\u85cf\u7684\u4f9d\u8d56\u5173\u7cfb\u6216\u672a\u4f7f\u7528\u7684\u529f\u80fd\u3002<\/p>\n<h2>\u968f\u7740\u65f6\u95f4\u4e0d\u65ad\u4f18\u5316\u6a21\u578b \ud83d\udd04<\/h2>\n<p>DFD \u662f\u52a8\u6001\u6587\u6863\u3002\u968f\u7740\u9700\u6c42\u7684\u53d8\u5316\uff0c\u5916\u90e8\u5b9e\u4f53\u53ef\u80fd\u88ab\u6dfb\u52a0\u6216\u79fb\u9664\u3002\u4e00\u4e2a\u65b0\u7684\u7b2c\u4e09\u65b9 API \u53ef\u80fd\u6210\u4e3a\u9700\u6c42\uff0c\u5f15\u5165\u4e00\u4e2a\u65b0\u7684\u5916\u90e8\u7cfb\u7edf\u5b9e\u4f53\u3002\u4e00\u4e2a\u9057\u7559\u7684\u7528\u6237\u754c\u9762\u53ef\u80fd\u88ab\u5f03\u7528\uff0c\u4ece\u56fe\u4e2d\u79fb\u9664\u4e00\u4e2a\u4eba\u7c7b\u5b9e\u4f53\u3002<\/p>\n<p>\u5b9a\u671f\u5ba1\u67e5\u53ef\u786e\u4fdd\u56fe\u8868\u4e0e\u5f53\u524d\u5b9e\u9645\u60c5\u51b5\u4e00\u81f4\u3002\u5229\u76ca\u76f8\u5173\u8005\u5e94\u9a8c\u8bc1\u8fd9\u4e9b\u5b9e\u4f53\uff0c\u4ee5\u786e\u4fdd\u6ca1\u6709\u9057\u6f0f\u4efb\u4f55\u5173\u952e\u7684\u4ea4\u4e92\u70b9\u3002\u8fd9\u4e00\u9a8c\u8bc1\u9636\u6bb5\u5bf9\u4e8e\u9632\u6b62\u8303\u56f4\u8513\u5ef6\u5e76\u786e\u4fdd\u6700\u7ec8\u4ea7\u54c1\u6ee1\u8db3\u7528\u6237\u9700\u6c42\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>\u6587\u6863\u5e94\u8fdb\u884c\u7248\u672c\u7ba1\u7406\u3002\u5e94\u5bf9\u5b9e\u4f53\u7684\u53d8\u5316\u8fdb\u884c\u8ffd\u8e2a\uff0c\u4ee5\u7406\u89e3\u7cfb\u7edf\u7684\u53d1\u5c55\u8fc7\u7a0b\u3002\u8fd9\u4e00\u5386\u53f2\u8bb0\u5f55\u6709\u52a9\u4e8e\u65b0\u56e2\u961f\u6210\u5458\u7406\u89e3\u4e3a\u4f55\u67d0\u4e9b\u96c6\u6210\u5b58\u5728\u3002<\/p>\n<h2>\u8bbe\u8ba1\u5e08\u7684\u6700\u540e\u8003\u91cf \ud83d\udee0\ufe0f<\/h2>\n<p>\u5728\u8bbe\u8ba1\u65f6\u8003\u8651\u5230\u5916\u90e8\u5b9e\u4f53\uff0c\u5e94\u59cb\u7ec8\u5173\u6ce8\u7cfb\u7edf\u8fb9\u754c\u3002\u4e0d\u8981\u56e0\u5305\u542b\u8fc7\u591a\u5b9e\u4f53\u800c\u5bfc\u81f4\u56fe\u8868\u8fc7\u4e8e\u590d\u6742\u3002\u5c06\u5b9e\u4f53\u6570\u91cf\u9650\u5236\u5728\u6838\u5fc3\u529f\u80fd\u6240\u5fc5\u9700\u7684\u8303\u56f4\u5185\u3002\u5982\u679c\u56fe\u8868\u4e2d\u5916\u90e8\u53c2\u4e0e\u8005\u8fc7\u591a\uff0c\u53ef\u80fd\u66f4\u9002\u5408\u5c06\u5176\u62c6\u5206\u4e3a\u5b50\u7cfb\u7edf\u3002<\/p>\n<p>\u6e05\u6670\u80dc\u4e8e\u5b8c\u6574\u3002\u4e00\u4e2a\u7b80\u6d01\u4e14\u51c6\u786e\u7684\u56fe\u8868\uff0c\u4f18\u4e8e\u4e00\u4e2a\u590d\u6742\u4e14\u4ee4\u4eba\u56f0\u60d1\u7684\u56fe\u8868\u3002\u786e\u4fdd\u6bcf\u6761\u7bad\u5934\u90fd\u6709\u6807\u7b7e\uff0c\u6bcf\u4e2a\u5b9e\u4f53\u90fd\u6709\u660e\u786e\u7684\u76ee\u7684\u3002\u8fd9\u79cd\u4e25\u8c28\u6027\u5728\u5f00\u53d1\u548c\u6d4b\u8bd5\u9636\u6bb5\u5c24\u4e3a\u6709\u76ca\uff0c\u6709\u52a9\u4e8e\u8ffd\u6eaf\u95ee\u9898\u7684\u6839\u6e90\u3002<\/p>\n<p>\u901a\u8fc7\u8c28\u614e\u5bf9\u5f85\u5916\u90e8\u5b9e\u4f53\uff0c\u56e2\u961f\u4e3a\u7cfb\u7edf\u67b6\u6784\u6253\u4e0b\u575a\u5b9e\u57fa\u7840\u3002\u56fe\u8868\u6210\u4e3a\u6307\u5bfc\u5f00\u53d1\u3001\u96c6\u6210\u548c\u7ef4\u62a4\u5de5\u4f5c\u7684\u6709\u6548\u5730\u56fe\u3002<\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u4f5c\u4e3a\u7406\u89e3\u4fe1\u606f\u5982\u4f55\u5728\u7cfb\u7edf\u4e2d\u6d41\u52a8\u7684\u84dd\u56fe\u3002\u8fd9\u4e9b\u56fe&hellip;<\/p>\n","protected":false},"author":1,"featured_media":563,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04","_yoast_wpseo_metadesc":"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u3002","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[47],"tags":[40,46],"class_list":["post-562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-flow-diagram","tag-academic","tag-data-flow-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04<\/title>\n<meta name=\"description\" content=\"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\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.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04\" \/>\n<meta property=\"og:description\" content=\"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\" \/>\n<meta property=\"og:site_name\" content=\"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-21T15:50:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-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\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/person\/f4829e721c737d92932250d9d21d8952\"},\"headline\":\"DFD\u6307\u5357\uff1a\u7406\u89e3\u6570\u636e\u6d41\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53\",\"datePublished\":\"2026-03-21T15:50:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\"},\"wordCount\":13,\"publisher\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg\",\"keywords\":[\"academic\",\"data flow diagram\"],\"articleSection\":[\"Data Flow Diagram\"],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\",\"url\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\",\"name\":\"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04\",\"isPartOf\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg\",\"datePublished\":\"2026-03-21T15:50:50+00:00\",\"description\":\"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage\",\"url\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg\",\"contentUrl\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.visualize-ai.com\/cn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"DFD\u6307\u5357\uff1a\u7406\u89e3\u6570\u636e\u6d41\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#website\",\"url\":\"https:\/\/www.visualize-ai.com\/cn\/\",\"name\":\"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.visualize-ai.com\/cn\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#organization\",\"name\":\"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation\",\"url\":\"https:\/\/www.visualize-ai.com\/cn\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/visualize-ai-logo.png\",\"contentUrl\":\"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/visualize-ai-logo.png\",\"width\":427,\"height\":98,\"caption\":\"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation\"},\"image\":{\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/person\/f4829e721c737d92932250d9d21d8952\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.visualize-ai.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.visualize-ai.com\"],\"url\":\"https:\/\/www.visualize-ai.com\/cn\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04","description":"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\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.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/","og_locale":"zh_CN","og_type":"article","og_title":"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04","og_description":"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u3002","og_url":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/","og_site_name":"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation","article_published_time":"2026-03-21T15:50:50+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"vpadmin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"8 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#article","isPartOf":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/person\/f4829e721c737d92932250d9d21d8952"},"headline":"DFD\u6307\u5357\uff1a\u7406\u89e3\u6570\u636e\u6d41\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53","datePublished":"2026-03-21T15:50:50+00:00","mainEntityOfPage":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/"},"wordCount":13,"publisher":{"@id":"https:\/\/www.visualize-ai.com\/cn\/#organization"},"image":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage"},"thumbnailUrl":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg","keywords":["academic","data flow diagram"],"articleSection":["Data Flow Diagram"],"inLanguage":"zh-Hans"},{"@type":"WebPage","@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/","url":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/","name":"\u7406\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53 \ud83d\udd04","isPartOf":{"@id":"https:\/\/www.visualize-ai.com\/cn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage"},"image":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage"},"thumbnailUrl":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg","datePublished":"2026-03-21T15:50:50+00:00","description":"\u4e86\u89e3\u6570\u636e\u6d41\u56fe\u4e2d\u5916\u90e8\u5b9e\u4f53\u7684\u542b\u4e49\u3002\u63a2\u7d22\u5176\u7c7b\u578b\u3001\u7b26\u53f7\u548c\u5efa\u6a21\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u51c6\u786e\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u3002","breadcrumb":{"@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/"]}]},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#primaryimage","url":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg","contentUrl":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2026\/03\/external-entities-data-flow-diagram-kawaii-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.visualize-ai.com\/cn\/understanding-external-entities-data-flow\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.visualize-ai.com\/cn\/"},{"@type":"ListItem","position":2,"name":"DFD\u6307\u5357\uff1a\u7406\u89e3\u6570\u636e\u6d41\u4e2d\u7684\u5916\u90e8\u5b9e\u4f53"}]},{"@type":"WebSite","@id":"https:\/\/www.visualize-ai.com\/cn\/#website","url":"https:\/\/www.visualize-ai.com\/cn\/","name":"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation","description":"","publisher":{"@id":"https:\/\/www.visualize-ai.com\/cn\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.visualize-ai.com\/cn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-Hans"},{"@type":"Organization","@id":"https:\/\/www.visualize-ai.com\/cn\/#organization","name":"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation","url":"https:\/\/www.visualize-ai.com\/cn\/","logo":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/logo\/image\/","url":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/visualize-ai-logo.png","contentUrl":"https:\/\/www.visualize-ai.com\/cn\/wp-content\/uploads\/sites\/2\/2025\/03\/visualize-ai-logo.png","width":427,"height":98,"caption":"Visualize AI Simplified Chinese - Latest in AI &amp; Software Innovation"},"image":{"@id":"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.visualize-ai.com\/cn\/#\/schema\/person\/f4829e721c737d92932250d9d21d8952","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.visualize-ai.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.visualize-ai.com"],"url":"https:\/\/www.visualize-ai.com\/cn\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/posts\/562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/comments?post=562"}],"version-history":[{"count":0,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/posts\/562\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/media\/563"}],"wp:attachment":[{"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/media?parent=562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/categories?post=562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.visualize-ai.com\/cn\/wp-json\/wp\/v2\/tags?post=562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}