{"id":6254,"date":"2026-02-04T09:13:45","date_gmt":"2026-02-04T01:13:45","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/cn\/case-study-streamlining-the-food-ordering-system-with-dfd\/"},"modified":"2026-02-04T09:13:45","modified_gmt":"2026-02-04T01:13:45","slug":"case-study-streamlining-the-food-ordering-system-with-dfd","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/cn\/case-study-streamlining-the-food-ordering-system-with-dfd\/","title":{"rendered":"\u6848\u4f8b\u7814\u7a76\uff1a\u4f7f\u7528\u6570\u636e\u6d41\u56fe\u4f18\u5316\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf"},"content":{"rendered":"<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u4ec0\u4e48\u662f\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\uff1f<\/h3>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u4e00\u79cd\u56fe\u5f62\u5316\u8868\u793a\u65b9\u6cd5\uff0c\u7528\u4e8e\u53ef\u89c6\u5316\u7cfb\u7edf\u5185\u6570\u636e\u7684\u6d41\u52a8\u3002\u5b83\u901a\u8fc7\u8bc6\u522b\u6570\u636e\u7684\u6765\u6e90\u3001\u76ee\u7684\u5730\uff0c\u4ee5\u53ca\u6570\u636e\u5728\u5904\u7406\u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u4e4b\u95f4\u7684\u6d41\u52a8\u65b9\u5f0f\uff0c\u6765\u5c55\u793a\u6570\u636e\u662f\u5982\u4f55\u88ab\u5904\u7406\u7684\u3002\u672c\u8d28\u4e0a\uff0c\u5b83\u63cf\u7ed8\u4e86\u7cfb\u7edf\u5404\u4e2a\u8fc7\u7a0b\u7684\u8f93\u5165\u548c\u8f93\u51fa\u3002<\/span><\/p>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u6570\u636e\u6d41\u56fe\uff1f<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6e05\u6670\u6027\u548c\u7406\u89e3\u6027<\/strong>\uff1a\u6570\u636e\u6d41\u56fe\u901a\u8fc7\u63d0\u4f9b\u6e05\u6670\u4e14\u53ef\u89c6\u5316\u7684\u6570\u636e\u6d41\u8868\u793a\uff0c\u5e2e\u52a9\u5229\u76ca\u76f8\u5173\u8005\u7406\u89e3\u7cfb\u7edf\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8bc6\u522b\u4f4e\u6548\u73af\u8282<\/strong>\uff1a\u901a\u8fc7\u7ed8\u5236\u6570\u636e\u6d41\uff0c\u7ec4\u7ec7\u53ef\u4ee5\u8bc6\u522b\u6d41\u7a0b\u4e2d\u7684\u74f6\u9888\u3001\u5197\u4f59\u548c\u4f4e\u6548\u73af\u8282\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6539\u5584\u6c9f\u901a<\/strong>\uff1a\u6570\u636e\u6d41\u56fe\u4f5c\u4e3a\u5f00\u53d1\u4eba\u5458\u3001\u5206\u6790\u5e08\u548c\u5229\u76ca\u76f8\u5173\u8005\u4e4b\u95f4\u7684\u901a\u7528\u8bed\u8a00\uff0c\u6709\u52a9\u4e8e\u4fc3\u8fdb\u66f4\u597d\u7684\u6c9f\u901a\u4e0e\u534f\u4f5c\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1<\/strong>\uff1a\u6570\u636e\u6d41\u56fe\u662f\u5206\u6790\u548c\u8bbe\u8ba1\u7cfb\u7edf\u7684\u91cd\u8981\u5de5\u5177\uff0c\u786e\u4fdd\u8003\u8651\u6570\u636e\u6d41\u52a8\u7684\u6240\u6709\u65b9\u9762\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6587\u6863\u5316<\/strong>\uff1a\u5b83\u4eec\u4e3a\u7cfb\u7edf\u63d0\u4f9b\u4e86\u5b9d\u8d35\u7684\u6587\u6863\u8d44\u6599\uff0c\u4fbf\u4e8e\u672a\u6765\u7684\u53c2\u8003\u548c\u7ef4\u62a4\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u5982\u4f55\u521b\u5efa\u6570\u636e\u6d41\u56fe<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8bc6\u522b\u8fc7\u7a0b<\/strong>\uff1a\u786e\u5b9a\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u8fc7\u7a0b\u3002\u6bcf\u4e2a\u8fc7\u7a0b\u90fd\u6709\u7279\u5b9a\u529f\u80fd\uff0c\u4f8b\u5982\u5904\u7406\u8ba2\u5355\u6216\u751f\u6210\u62a5\u544a\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u786e\u5b9a\u5916\u90e8\u5b9e\u4f53<\/strong>\uff1a\u8bc6\u522b\u4e0e\u7cfb\u7edf\u4ea4\u4e92\u7684\u5916\u90e8\u5b9e\u4f53\uff0c\u4f8b\u5982\u5ba2\u6237\u3001\u4f9b\u5e94\u5546\u6216\u5176\u4ed6\u7cfb\u7edf\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5b9a\u4e49\u6570\u636e\u5b58\u50a8<\/strong>\uff1a\u786e\u5b9a\u7cfb\u7edf\u5185\u6570\u636e\u7684\u5b58\u50a8\u4f4d\u7f6e\u3002\u8fd9\u53ef\u4ee5\u662f\u6570\u636e\u5e93\u3001\u6587\u4ef6\u6216\u5176\u4ed6\u7c7b\u578b\u7684\u6570\u636e\u5b58\u50a8\u5e93\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u7ed8\u5236\u6570\u636e\u6d41<\/strong>\uff1a\u8bc6\u522b\u6570\u636e\u5728\u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u4e4b\u95f4\u7684\u6d41\u52a8\u65b9\u5f0f\u3002\u4f7f\u7528\u7bad\u5934\u8868\u793a\u6570\u636e\u7684\u6d41\u52a8\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u521b\u5efa\u56fe\u8868<\/strong>\uff1a\u4f7f\u7528\u6807\u51c6\u7684\u6570\u636e\u6d41\u56fe\u7b26\u53f7\u6765\u521b\u5efa\u56fe\u8868\u3002\u8fc7\u7a0b\u901a\u5e38\u7528\u5706\u6216\u77e9\u5f62\u8868\u793a\uff0c\u6570\u636e\u6d41\u7528\u7bad\u5934\u8868\u793a\uff0c\u6570\u636e\u5b58\u50a8\u7528\u5f00\u53e3\u77e9\u5f62\u8868\u793a\uff0c\u5916\u90e8\u5b9e\u4f53\u7528\u65b9\u6846\u6216\u692d\u5706\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u793a\u4f8b\u7b26\u53f7<\/h3>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8fc7\u7a0b<\/strong>\uff1a\u7528\u5706\u6216\u5706\u89d2\u77e9\u5f62\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6570\u636e\u6d41<\/strong>\uff1a\u7528\u7bad\u5934\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6570\u636e\u5b58\u50a8<\/strong>: \u7528\u4e00\u4e2a\u5f00\u53e3\u7684\u77e9\u5f62\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5916\u90e8\u5b9e\u4f53<\/strong>: \u7528\u4e00\u4e2a\u65b9\u5f62\u6216\u692d\u5706\u5f62\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"text-md-strong pb-1 [&amp;:not(:first-child)]:pt-3.5\">\u7ed8\u5236\u6570\u636e\u6d41\u56fe\u7684\u6b65\u9aa4<\/h3>\n<ol class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-5 marker:normal-nums marker:text-sm-strong\" start=\"1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u4ece\u4e0a\u4e0b\u6587\u56fe\u5f00\u59cb<\/strong>: \u4ece\u6700\u9ad8\u5c42\u7ea7\uff080\u7ea7\u6570\u636e\u6d41\u56fe\uff09\u5f00\u59cb\uff0c\u5c55\u793a\u7cfb\u7edf\u53ca\u5176\u4e0e\u5916\u90e8\u5b9e\u4f53\u7684\u4ea4\u4e92\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5206\u89e3\u5230\u66f4\u4f4e\u5c42\u7ea7<\/strong>: \u5c06\u7cfb\u7edf\u5206\u89e3\u4e3a\u66f4\u8be6\u7ec6\u7684DFD\uff081\u7ea7\u30012\u7ea7\u7b49\uff09\uff0c\u4ee5\u66f4\u6df1\u5165\u5730\u7406\u89e3\u6570\u636e\u6d41\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u6e05\u6670\u5730\u6807\u8bb0\u6240\u6709\u5185\u5bb9<\/strong>: \u786e\u4fdd\u6240\u6709\u8fc7\u7a0b\u3001\u6570\u636e\u6d41\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u90fd\u6e05\u6670\u5730\u6807\u8bb0\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u4e0e\u5229\u76ca\u76f8\u5173\u8005\u8fdb\u884c\u9a8c\u8bc1<\/strong>: \u4e0e\u5229\u76ca\u76f8\u5173\u8005\u4e00\u8d77\u5ba1\u67e5DFD\uff0c\u4ee5\u786e\u4fdd\u5176\u51c6\u786e\u6027\u548c\u5b8c\u6574\u6027\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<h2>\u6570\u636e\u6d41\u56fe\u6848\u4f8b\u7814\u7a76<\/h2>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u4f7f\u7528\u6570\u636e\u6d41\u56fe\u53ef\u4ee5\u5f7b\u5e95\u6539\u53d8\u4f60\u5bf9\u7cfb\u7edf\u6570\u636e\u6d41\u7684\u7406\u89e3\u548c\u4f18\u5316\u3002\u7acb\u5373\u6295\u5165\u5e76\u5f00\u59cb\u7ed8\u5236\uff01\uff1f<\/span><\/p>\n<h4 class=\"text-base-strong\">\u80cc\u666f<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u53ca\u5176\u5728\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u3002\u672c\u6848\u4f8b\u7814\u7a76\u91cd\u70b9\u662f\u901a\u8fc7\u53ef\u89c6\u5316\u7cfb\u7edf\u5185\u90e8\u7684\u6570\u636e\u6d41\u52a8\u6765\u63d0\u9ad8\u9910\u5385\u8ba2\u9910\u6d41\u7a0b\u7684\u6548\u7387\u3002<\/span><\/p>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">CityBite\u662f\u4e00\u5bb6\u53d7\u6b22\u8fce\u7684\u57ce\u5e02\u9910\u5385\uff0c\u9762\u4e34\u7740\u8ba2\u5355\u7ba1\u7406\u3001\u5e93\u5b58\u548c\u62a5\u544a\u65b9\u9762\u7684\u6311\u6218\u3002\u4e3a\u4e86\u7b80\u5316\u8fd0\u8425\u5e76\u63d0\u9ad8\u670d\u52a1\u4ea4\u4ed8\u6548\u7387\uff0c\u4ed6\u4eec\u51b3\u5b9a\u4f7f\u7528\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u6765\u5206\u6790\u548c\u91cd\u65b0\u8bbe\u8ba1\u5176\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf\u3002<\/span><\/p>\n<p aria-atomic=\"true\" aria-live=\"polite\"><img alt=\"Chapter 8. Data Flow Diagram - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2024\/10\/img_6704e2638dd43.png\"\/><\/p>\n<h4 class=\"text-base-strong\">\u76ee\u6807<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u76ee\u6807\u662f\u6e05\u6670\u5730\u4e86\u89e3\u7cfb\u7edf\u5185\u4e0d\u540c\u5b9e\u4f53\u3001\u8fc7\u7a0b\u548c\u6570\u636e\u5b58\u50a8\u4e4b\u95f4\u7684\u6570\u636e\u6d41\u52a8\u65b9\u5f0f\u3002\u8fd9\u79cd\u53ef\u89c6\u5316\u6709\u52a9\u4e8e\u8bc6\u522b\u74f6\u9888\u548c\u6539\u8fdb\u533a\u57df\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">\u7cfb\u7edf\u6982\u8ff0<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">CityBite\u7684\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf\u6d89\u53ca\u987e\u5ba2\u3001\u53a8\u623f\u3001\u4f9b\u5e94\u5546\u548c\u9910\u5385\u7ba1\u7406\u4e4b\u95f4\u7684\u4e92\u52a8\u3002DFD\u6355\u6349\u4e86\u8fd9\u4e9b\u4e92\u52a8\uff0c\u63d0\u4f9b\u4e86\u6570\u636e\u6d41\u52a8\u7684\u5168\u9762\u89c6\u56fe\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">DFD\u7684\u7ec4\u6210\u90e8\u5206<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>1. \u5916\u90e8\u5b9e\u4f53\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u987e\u5ba2<\/strong>: \u4e0b\u8ba2\u5355\u5e76\u6536\u5230\u8d26\u5355\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u4f9b\u5e94\u5546<\/strong>: \u4ece\u9910\u5385\u7cfb\u7edf\u63a5\u6536\u5e93\u5b58\u8ba2\u5355\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>2. \u8fc7\u7a0b\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8ba2\u9910\uff080.1\uff09<\/strong>: \u5904\u7406\u5ba2\u6237\u7684\u8ba2\u5355\u5e76\u5c06\u5176\u53d1\u9001\u5230\u53a8\u623f\u3002\u5b83\u8fd8\u4f1a\u4e3a\u5ba2\u6237\u63d0\u4f9b\u8d26\u5355\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u751f\u6210\u62a5\u544a (0.2)<\/strong>: \u6839\u636e\u5e93\u5b58\u8be6\u60c5\u751f\u6210\u62a5\u544a\u5e76\u53d1\u9001\u7ed9\u7ecf\u7406\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8ba2\u8d2d\u5e93\u5b58 (0.3)<\/strong>: \u6839\u636e\u5e93\u5b58\u8be6\u60c5\u5411\u4f9b\u5e94\u5546\u4e0b\u5e93\u5b58\u8ba2\u5355\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>3. \u6570\u636e\u5b58\u50a8\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58<\/strong>: \u4fdd\u5b58\u5404\u79cd\u6d41\u7a0b\u4f7f\u7528\u7684\u5e93\u5b58\u8be6\u60c5\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>4. \u6570\u636e\u6d41\uff1a<\/strong><\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8ba2\u5355<\/strong>: \u4ece\u5ba2\u6237\u53d1\u9001\u5230\u201c\u70b9\u9910\u201d\u6d41\u7a0b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8d26\u5355<\/strong>: \u4ece\u201c\u70b9\u9910\u201d\u6d41\u7a0b\u53d1\u9001\u5230\u5ba2\u6237\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u8ba2\u5355<\/strong>: \u4ece\u201c\u70b9\u9910\u201d\u6d41\u7a0b\u53d1\u9001\u5230\u53a8\u623f\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8be6\u60c5<\/strong>: \u4ece\u201c\u70b9\u9910\u201d\u6d41\u7a0b\u53d1\u9001\u5230\u201c\u5e93\u5b58\u201d\u6570\u636e\u5b58\u50a8\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8be6\u60c5<\/strong>: \u4ece\u201c\u5e93\u5b58\u201d\u6570\u636e\u5b58\u50a8\u53d1\u9001\u5230\u201c\u751f\u6210\u62a5\u544a\u201d\u6d41\u7a0b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u62a5\u544a<\/strong>: \u4ece\u201c\u751f\u6210\u62a5\u544a\u201d\u6d41\u7a0b\u53d1\u9001\u5230\u7ecf\u7406\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8be6\u60c5<\/strong>: \u4ece\u201c\u5e93\u5b58\u201d\u6570\u636e\u5b58\u50a8\u53d1\u9001\u5230\u201c\u8ba2\u8d2d\u5e93\u5b58\u201d\u6d41\u7a0b\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8ba2\u5355<\/strong>: \u4ece\u201c\u8ba2\u8d2d\u5e93\u5b58\u201d\u6d41\u7a0b\u53d1\u9001\u5230\u4f9b\u5e94\u5546\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h4 class=\"text-base-strong\">\u56fe\u50cf\u7b80\u8981\u63cf\u8ff0<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u8be5\u56fe\u662fCityBite\u9910\u5385\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf\u7684\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u3002\u5b83\u76f4\u89c2\u5730\u5c55\u793a\u4e86\u6570\u636e\u5728\u4e0d\u540c\u5b9e\u4f53\u3001\u6d41\u7a0b\u548c\u6570\u636e\u5b58\u50a8\u4e4b\u95f4\u7684\u6d41\u52a8\u65b9\u5f0f\uff1a<\/span><\/p>\n<ul class=\"relative list-outside marker:text-foreground-750 dark:marker:text-foreground-600 flex flex-col ms-4 px-1\">\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5ba2\u6237<\/strong> \u4e0b\u8ba2\u5355\uff0c\u8fd9\u4e9b\u8ba2\u5355\u7531<strong>\u70b9\u9910<\/strong>\u6d41\u7a0b\u3002\u8be5\u6d41\u7a0b\u4e0e\u53a8\u623f\u901a\u4fe1\uff0c\u5e76\u4e3a\u5ba2\u6237\u751f\u6210\u8d26\u5355\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8be6\u60c5<\/strong>\u88ab\u66f4\u65b0\u5e76\u5b58\u50a8\uff0c\u4fbf\u4e8e\u5e93\u5b58\u7ba1\u7406\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u8be5<strong>\u751f\u6210\u62a5\u544a<\/strong>\u8be5\u6d41\u7a0b\u4f7f\u7528\u8fd9\u4e9b\u8be6\u60c5\u4e3a\u7ba1\u7406\u5c42\u751f\u6210\u62a5\u544a\uff0c\u6709\u52a9\u4e8e\u51b3\u7b56\u3002<\/span><\/p>\n<\/li>\n<li class=\"ps-2\">\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\"><strong>\u5e93\u5b58\u8ba2\u5355<\/strong>\u5411\u4f9b\u5e94\u5546\u4e0b\u5355\u4ee5\u8865\u5145\u5e93\u5b58\uff0c\u786e\u4fdd\u8fd0\u8425\u987a\u7545\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<h4 class=\"text-base-strong\">\u5b9e\u65bd\u7ed3\u679c<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u901a\u8fc7\u4f7f\u7528\u6570\u636e\u6d41\u56fe\uff0cCityBite\u80fd\u591f\u8bc6\u522b\u5176\u98df\u54c1\u8ba2\u8d2d\u7cfb\u7edf\u4e2d\u7684\u4f4e\u6548\u4e4b\u5904\u3002\u901a\u8fc7\u53ef\u89c6\u5316\u6570\u636e\u6d41\uff0c\u4ed6\u4eec\u4f18\u5316\u4e86\u8fd0\u8425\u6d41\u7a0b\uff0c\u7f29\u77ed\u4e86\u8ba2\u5355\u5904\u7406\u65f6\u95f4\uff0c\u5e76\u6539\u5584\u4e86\u5e93\u5b58\u7ba1\u7406\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u5ba2\u6237\u670d\u52a1\u8d28\u91cf\u4e0e\u8fd0\u8425\u6548\u7387\u3002<\/span><\/p>\n<h4 class=\"text-base-strong\">\u7ed3\u8bba<\/h4>\n<p aria-atomic=\"true\" aria-live=\"polite\"><span class=\"\">\u672c\u6848\u4f8b\u7814\u7a76\u5f3a\u8c03\u4e86\u4f7f\u7528\u6570\u636e\u6d41\u56fe\u6765\u53ef\u89c6\u5316\u548c\u5206\u6790\u7cfb\u7edf\u5185\u6570\u636e\u6d41\u52a8\u7684\u91cd\u8981\u6027\u3002\u5bf9\u4e8eCityBite\u800c\u8a00\uff0c\u6570\u636e\u6d41\u56fe\u63d0\u4f9b\u4e86\u5b9d\u8d35\u7684\u6d1e\u5bdf\uff0c\u4fc3\u4f7f\u5176\u98df\u54c1\u8ba2\u8d2d\u6d41\u7a0b\u5b9e\u73b0\u4e86\u663e\u8457\u6539\u8fdb\u3002\u8bf7\u91c7\u7eb3\u8fd9\u4e00\u6280\u672f\uff0c\u4ee5\u63d0\u5347\u60a8\u7684\u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\u5de5\u4f5c\u3002\uff1f<\/span><\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\">\u4ec0\u4e48\u662f\u6570\u636e\u6d41\u56fe\uff1f<\/a><\/p>\n<p><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/logical-vs-physical-data-flow-diagrams\/\">\u903b\u8f91\u4e0e\u7269\u7406\u6570\u636e\u6d41\u56fe<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\uff1f \u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u662f\u4e00\u79cd\u56fe\u5f62\u5316\u8868\u793a\u65b9\u6cd5\uff0c\u7528\u4e8e\u53ef\u89c6\u5316\u7cfb\u7edf\u5185\u6570\u636e\u7684\u6d41\u52a8\u3002\u5b83\u901a\u8fc7\u8bc6\u522b\u6570\u636e\u7684\u6765\u6e90\u3001\u76ee\u7684\u5730\uff0c\u4ee5\u53ca\u6570\u636e\u5728\u5904\u7406\u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u4e4b\u95f4\u7684\u6d41\u52a8\u65b9\u5f0f\uff0c\u6765\u5c55\u793a\u6570\u636e\u662f\u5982\u4f55\u88ab\u5904\u7406\u7684\u3002\u672c\u8d28\u4e0a\uff0c\u5b83\u63cf\u7ed8\u4e86\u7cfb\u7edf\u5404\u4e2a\u8fc7\u7a0b\u7684\u8f93\u5165\u548c\u8f93\u51fa\u3002 \u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u6570\u636e\u6d41\u56fe\uff1f \u6e05\u6670\u6027\u548c\u7406\u89e3\u6027\uff1a\u6570\u636e\u6d41\u56fe\u901a\u8fc7\u63d0\u4f9b\u6e05\u6670\u4e14\u53ef\u89c6\u5316\u7684\u6570\u636e\u6d41\u8868\u793a\uff0c\u5e2e\u52a9\u5229\u76ca\u76f8\u5173\u8005\u7406\u89e3\u7cfb\u7edf\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002 \u8bc6\u522b\u4f4e\u6548\u73af\u8282\uff1a\u901a\u8fc7\u7ed8\u5236\u6570\u636e\u6d41\uff0c\u7ec4\u7ec7\u53ef\u4ee5\u8bc6\u522b\u6d41\u7a0b\u4e2d\u7684\u74f6\u9888\u3001\u5197\u4f59\u548c\u4f4e\u6548\u73af\u8282\u3002 \u6539\u5584\u6c9f\u901a\uff1a\u6570\u636e\u6d41\u56fe\u4f5c\u4e3a\u5f00\u53d1\u4eba\u5458\u3001\u5206\u6790\u5e08\u548c\u5229\u76ca\u76f8\u5173\u8005\u4e4b\u95f4\u7684\u901a\u7528\u8bed\u8a00\uff0c\u6709\u52a9\u4e8e\u4fc3\u8fdb\u66f4\u597d\u7684\u6c9f\u901a\u4e0e\u534f\u4f5c\u3002 \u7cfb\u7edf\u5206\u6790\u4e0e\u8bbe\u8ba1\uff1a\u6570\u636e\u6d41\u56fe\u662f\u5206\u6790\u548c\u8bbe\u8ba1\u7cfb\u7edf\u7684\u91cd\u8981\u5de5\u5177\uff0c\u786e\u4fdd\u8003\u8651\u6570\u636e\u6d41\u52a8\u7684\u6240\u6709\u65b9\u9762\u3002 \u6587\u6863\u5316\uff1a\u5b83\u4eec\u4e3a\u7cfb\u7edf\u63d0\u4f9b\u4e86\u5b9d\u8d35\u7684\u6587\u6863\u8d44\u6599\uff0c\u4fbf\u4e8e\u672a\u6765\u7684\u53c2\u8003\u548c\u7ef4\u62a4\u3002 \u5982\u4f55\u521b\u5efa\u6570\u636e\u6d41\u56fe \u8bc6\u522b\u8fc7\u7a0b\uff1a\u786e\u5b9a\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u8fc7\u7a0b\u3002\u6bcf\u4e2a\u8fc7\u7a0b\u90fd\u6709\u7279\u5b9a\u529f\u80fd\uff0c\u4f8b\u5982\u5904\u7406\u8ba2\u5355\u6216\u751f\u6210\u62a5\u544a\u3002 \u786e\u5b9a\u5916\u90e8\u5b9e\u4f53\uff1a\u8bc6\u522b\u4e0e\u7cfb\u7edf\u4ea4\u4e92\u7684\u5916\u90e8\u5b9e\u4f53\uff0c\u4f8b\u5982\u5ba2\u6237\u3001\u4f9b\u5e94\u5546\u6216\u5176\u4ed6\u7cfb\u7edf\u3002 \u5b9a\u4e49\u6570\u636e\u5b58\u50a8\uff1a\u786e\u5b9a\u7cfb\u7edf\u5185\u6570\u636e\u7684\u5b58\u50a8\u4f4d\u7f6e\u3002\u8fd9\u53ef\u4ee5\u662f\u6570\u636e\u5e93\u3001\u6587\u4ef6\u6216\u5176\u4ed6\u7c7b\u578b\u7684\u6570\u636e\u5b58\u50a8\u5e93\u3002 \u7ed8\u5236\u6570\u636e\u6d41\uff1a\u8bc6\u522b\u6570\u636e\u5728\u8fc7\u7a0b\u3001\u6570\u636e\u5b58\u50a8\u548c\u5916\u90e8\u5b9e\u4f53\u4e4b\u95f4\u7684\u6d41\u52a8\u65b9\u5f0f\u3002\u4f7f\u7528\u7bad\u5934\u8868\u793a\u6570\u636e\u7684\u6d41\u52a8\u3002 \u521b\u5efa\u56fe\u8868\uff1a\u4f7f\u7528\u6807\u51c6\u7684\u6570\u636e\u6d41\u56fe\u7b26\u53f7\u6765\u521b\u5efa\u56fe\u8868\u3002\u8fc7\u7a0b\u901a\u5e38\u7528\u5706\u6216\u77e9\u5f62\u8868\u793a\uff0c\u6570\u636e\u6d41\u7528\u7bad\u5934\u8868\u793a\uff0c\u6570\u636e\u5b58\u50a8\u7528\u5f00\u53e3\u77e9\u5f62\u8868\u793a\uff0c\u5916\u90e8\u5b9e\u4f53\u7528\u65b9\u6846\u6216\u692d\u5706\u8868\u793a\u3002 \u793a\u4f8b\u7b26\u53f7 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