{"id":5346,"date":"2022-01-26T01:28:21","date_gmt":"2022-01-26T01:28:21","guid":{"rendered":"https:\/\/www.cybermedian.com\/tw\/?p=5346"},"modified":"2026-04-20T09:13:21","modified_gmt":"2026-04-20T09:13:21","slug":"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e6%b5%81%e5%9c%96%ef%bc%8c%e7%82%ba%e4%bb%80%e9%ba%bc%e5%ae%83%e4%bb%8d%e7%84%b6%e5%b0%8d%e8%bb%9f%e4%bb%b6%e9%96%8b%e7%99%bc%e6%9c%89%e7%94%a8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/tw\/what-is-data-flow-diagram-why-it-is-still-useful-for-software-development\/","title":{"rendered":"\u4ec0\u9ebc\u662f\u6578\u64da\u6d41\u5716\uff0c\u70ba\u4ec0\u9ebc\u5b83\u4ecd\u7136\u5c0d\u8edf\u4ef6\u958b\u767c\u6709\u7528\uff1f"},"content":{"rendered":"<section class=\"section section--body section--first\">\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<p id=\"dbcd\" class=\"graf graf--p graf-after--h3\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\">\u6578\u64da\u6d41\u6a21\u578b<\/a>\u00a0\u662f\u986f\u793a\u7cfb\u7d71\u5982\u4f55\u8655\u7406\u6578\u64da\u7684\u76f4\u89c0\u65b9\u5f0f\u3002\u00a0\u5728\u5206\u6790\u7d1a\u5225\uff0c\u5b83\u5011\u61c9\u8a72\u7528\u65bc\u5c0d\u73fe\u6709\u7cfb\u7d71\u4e2d\u8655\u7406\u6578\u64da\u7684\u65b9\u5f0f\u9032\u884c\u5efa\u6a21\u3002<\/p>\n<p id=\"9b9e\" class=\"graf graf--p graf-after--p\"><a class=\"markup--anchor markup--p-anchor\" href=\"http:\/\/dfd%20using%20yourdon%20and%20demarco%20notation\/\" target=\"_blank\" rel=\"noopener\" data-href=\"http:\/\/DFD Using Yourdon and DeMarco Notation\">DeMarco \u7684\u300a\u7d50\u69cb\u5316\u7cfb\u7d71\u5206\u6790\u300b\u4e00\u66f8<\/a>\u51fa\u7248\u5f8c\u00a0\uff0c\u6578\u64da\u6d41\u6a21\u578b\u5728\u5206\u6790\u4e2d\u7684\u61c9\u7528\u8d8a\u4f86\u8d8a\u5ee3\u6cdb\u3002\u5b83\u5011\u662f\u5f9e\u9019\u9805\u5de5\u4f5c\u958b\u767c\u7684\u7d50\u69cb\u5316\u65b9\u6cd5\u7684\u56fa\u6709\u90e8\u5206\u3002\u9019\u4e9b\u6a21\u578b\u4e2d\u4f7f\u7528\u7684\u7b26\u865f\u4ee3\u8868\u51fd\u6578\u8655\u7406\uff08\u5713\u89d2\u77e9\u5f62\uff09\u3001\u6578\u64da\u5b58\u5132\uff08\u77e9\u5f62\uff09\u548c\u51fd\u6578\u4e4b\u9593\u7684\u6578\u64da\u79fb\u52d5\u200b\u200b\uff08\u6a19\u8a18\u7bad\u982d\uff09\u3002<\/p>\n<h3 id=\"5137\" class=\"graf graf--h3 graf-after--p\"><span id=\"Why_DFD_still_useful_for_software_development\">\u70ba\u4ec0\u9ebc DFD \u4ecd\u7136\u5c0d\u8edf\u4ef6\u958b\u767c\u6709\u7528\uff1f<\/span><\/h3>\n<p id=\"5d71\" class=\"graf graf--p graf-after--h3\">\u5118\u7ba1\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/en.wikipedia.org\/wiki\/Data-flow_diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/en.wikipedia.org\/wiki\/Data-flow_diagram\">\u9762\u5411\u6578\u64da\u6d41\u7684\u5efa\u6a21<\/a>\u00a0\u88ab\u4e00\u4e9b\u8edf\u4ef6\u5de5\u7a0b\u5e2b\u8a8d\u70ba\u662f\u4e00\u7a2e\u904e\u6642\u7684\u6280\u8853\uff0c\u4f46\u5b83\u4ecd\u7136\u662f\u6700\u5ee3\u6cdb\u4f7f\u7528\u7684\u9700\u6c42\u5206\u6790\u7b26\u865f\u4e4b\u4e00\u3002\u5118\u7ba1\u6578\u64da\u6d41\u5716 (DFD) \u4e0d\u662f UML \u7684\u6b63\u5f0f\u90e8\u5206\uff0c\u4f46\u5b83\u5011\u53ef\u7528\u65bc\u88dc\u5145 UML \u5716\u4e26\u63d0\u4f9b\u5c0d\u7cfb\u7d71\u9700\u6c42\u548c\u6d41\u7a0b\u7684\u984d\u5916\u6d1e\u5bdf\u3002<\/p>\n<p id=\"6c71\" class=\"graf graf--p graf-after--p\">\u6578\u64da\u6d41\u6a21\u578b\u5f88\u6709\u50f9\u503c\uff0c\u56e0\u70ba\u8ddf\u8e2a\u548c\u8a18\u9304\u8207\u7279\u5b9a\u6d41\u7a0b\u76f8\u95dc\u7684\u6578\u64da\u5982\u4f55\u5728\u7cfb\u7d71\u4e2d\u79fb\u52d5\u6709\u52a9\u65bc\u5206\u6790\u5e2b\u4e86\u89e3\u6b63\u5728\u767c\u751f\u7684\u4e8b\u60c5\u3002\u6578\u64da\u6d41\u5716\u7684\u512a\u52e2\u5728\u65bc\uff0c\u8207\u5176\u4ed6\u4e00\u4e9b\u5efa\u6a21\u7b26\u865f\u4e0d\u540c\uff0c\u5b83\u5011\u7c21\u55ae\u76f4\u89c0\u3002\u901a\u5e38\u53ef\u4ee5\u5411\u53ef\u80fd\u53c3\u8207\u9700\u6c42\u5206\u6790\u548c\u9a57\u8b49\u7684\u6f5b\u5728\u7cfb\u7d71\u7528\u6236\u89e3\u91cb\u5b83\u5011\u3002<\/p>\n<h4 id=\"4d4c\" class=\"graf graf--h4 graf-after--p\"><span id=\"Why_DFD\">\u70ba\u4ec0\u9ebc\u9078\u64c7 DFD\uff1f<\/span><\/h4>\n<p id=\"248b\" class=\"graf graf--p graf-after--h4\">DFD \u4ee5\u5716\u5f62\u65b9\u5f0f\u8868\u793a\u5728\u7cfb\u7d71\u53ca\u5176\u74b0\u5883\u4e4b\u9593\u4ee5\u53ca\u7cfb\u7d71\u7d44\u4ef6\u4e4b\u9593\u6355\u7372\u3001\u64cd\u4f5c\u3001\u5b58\u5132\u548c\u5206\u767c\u6578\u64da\u7684\u529f\u80fd\u6216\u904e\u7a0b\u3002\u8996\u89ba\u8868\u793a\u4f7f\u5176\u6210\u70ba\u7528\u6236\u548c\u7cfb\u7d71\u8a2d\u8a08\u5e2b\u4e4b\u9593\u7684\u826f\u597d\u6e9d\u901a\u5de5\u5177\u3002DFD \u7684\u7d50\u69cb\u5141\u8a31\u5f9e\u5ee3\u6cdb\u7684\u6982\u8ff0\u958b\u59cb\u4e26\u5c07\u5176\u64f4\u5c55\u5230\u8a73\u7d30\u5716\u8868\u7684\u5c64\u6b21\u7d50\u69cb\u3002\u7531\u65bc\u4ee5\u4e0b\u539f\u56e0\uff0c\u7d93\u5e38\u4f7f\u7528 DFD\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"4521\" class=\"graf graf--li graf-after--p\">\u7cfb\u7d71\u908f\u8f2f\u4fe1\u606f\u6d41<\/li>\n<li id=\"720b\" class=\"graf graf--li graf-after--li\">\u78ba\u5b9a\u7269\u7406\u7cfb\u7d71\u69cb\u5efa\u8981\u6c42<\/li>\n<li id=\"f707\" class=\"graf graf--li graf-after--li\">\u7b26\u865f\u7684\u7c21\u55ae\u6027<\/li>\n<li id=\"c92f\" class=\"graf graf--li graf-after--li\">\u5efa\u7acb\u624b\u52d5\u548c\u81ea\u52d5\u5316\u7cfb\u7d71\u8981\u6c42<\/li>\n<\/ul>\n<h3 id=\"bd2d\" class=\"graf graf--h3 graf-after--li\"><span id=\"DFD_is_a_Top-Down_Decomposition_Process\">DFD \u662f\u4e00\u500b\u81ea\u4e0a\u800c\u4e0b\u7684\u5206\u89e3\u904e\u7a0b<\/span><\/h3>\n<p id=\"6cf8\" class=\"graf graf--p graf-after--h3\">\u6578\u64da\u6d41\u5efa\u6a21\u662f\u4e00\u500b\u201c\u81ea\u4e0a\u800c\u4e0b\u201d\u7684\u904e\u7a0b\u3002\u9996\u5148\u5206\u6790\u6574\u500b\u63a1\u8cfc\u6d41\u7a0b\u3002\u7136\u5f8c\u4ee5\u81ea\u4e0a\u800c\u4e0b\u7684\u5206\u89e3\u65b9\u5f0f\u5206\u6790\u5b50\u904e\u7a0b\u3002<\/p>\n<p id=\"b22f\" class=\"graf graf--p graf-after--p\">DFD \u53ef\u7528\u65bc\u5c0d\u4efb\u4f55\u62bd\u8c61\u7d1a\u5225\u7684\u7cfb\u7d71\u6216\u8edf\u4ef6\u9032\u884c\u5efa\u6a21\u3002\u5982\u524d\u6240\u8ff0\uff0cDFD \u53ef\u4ee5\u5206\u70ba\u4ee3\u8868\u4e0d\u65b7\u589e\u52a0\u7684\u4fe1\u606f\u6d41\u548c\u529f\u80fd\u7d30\u7bc0\u7684\u7d1a\u5225\u3002DFD \u4e2d\u7684\u7d1a\u5225\u6578\u70ba 0\u30011\u30012 \u6216\u66f4\u9ad8\u3002\u5728\u9019\u88e1\uff0c\u6211\u5011\u5c07\u770b\u5230\u6578\u64da\u6d41\u5716\u4e2d\u7684\u4e09\u500b\u4e3b\u8981\u7d1a\u5225\uff0c\u5373 0 \u7d1a DFD\u30011 \u7d1a DFD \u548c 2 \u7d1a DFD\u3002<\/p>\n<figure id=\"d663\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0DTnOV6N4nnYaG-1l.png\" data-image-id=\"0*DTnOV6N4nnYaG-1l.png\" data-width=\"886\" data-height=\"577\" data-is-featured=\"true\" \/><figcaption class=\"imageCaption\">DFD \u81ea\u9802\u5411\u4e0b\u5206\u89e3\u904e\u7a0b<\/figcaption><\/figure>\n<h4 id=\"e685\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Context_Diagram_Levels_of_DFD\">\u4e0a\u4e0b\u6587\u5716 &#8211; DFD \u7684\u7d1a\u5225<\/span><\/h4>\n<p id=\"7108\" class=\"graf graf--p graf-after--h4\">\u4e0a\u4e0b\u6587\u5716\uff08\u4e5f\u7a31\u70ba0\u7d1aDFD\uff09\uff0c\u5b83\u5c07\u6574\u500b\u8edf\u4ef6\u9700\u6c42\u8868\u793a\u70ba\u4e00\u500b\u6c23\u6ce1\uff0c\u8f38\u5165\u548c\u8f38\u51fa\u6578\u64da\u7531\u8f38\u5165\u548c\u8f38\u51fa\u7bad\u982d\u8868\u793a\u3002<\/p>\n<p id=\"319a\" class=\"graf graf--p graf-after--p\">\u7136\u5f8c\u5c07\u8a72\u7cfb\u7d71\u5206\u89e3\u70ba\u5177\u6709\u591a\u500b\u6c23\u6ce1\u7684 DFD\u3002\u7136\u5f8c\u5c07\u6bcf\u500b\u6c23\u6ce1\u6240\u4ee3\u8868\u7684\u7cfb\u7d71\u90e8\u5206\u5206\u89e3\u4e26\u8a18\u9304\u5230\u8d8a\u4f86\u8d8a\u8a73\u7d30\u7684\u6578\u64da\u6d41\u5716\u4e2d\u3002\u9019\u500b\u904e\u7a0b\u53ef\u4ee5\u5728\u5fc5\u8981\u7684\u5c64\u6b21\u4e0a\u91cd\u8907\uff0c\u76f4\u5230\u624b\u982d\u7684\u7a0b\u5e8f\u88ab\u5b8c\u5168\u7406\u89e3\u3002<\/p>\n<p id=\"c5c4\" class=\"graf graf--p graf-after--p\">\u5fc5\u9808\u4fdd\u6301\u7d1a\u5225\u4e4b\u9593\u7684\u8f38\u5165\u548c\u8f38\u51fa\u6578\u91cf\uff0c\u9019\u4e00\u6982\u5ff5\u7a31\u70ba DeMacro \u8abf\u5e73\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6c23\u6ce1\u201cA\u201d\u6709\u5169\u500b\u8f38\u5165 X1 \u548c X2 \u4ee5\u53ca\u4e00\u500b\u8f38\u51fa Y\uff0c\u90a3\u9ebc\u4ee3\u8868\u4e0a\u5c64 DFD\u201cA\u201d\u7684\u5b50\u7d1a\u6578\u64da\u6d41\u5716\u61c9\u8a72\u6b63\u597d\u6709\u5169\u500b\u5916\u90e8\u8f38\u5165\u548c\u4e00\u500b\u5916\u90e8\u8f38\u51fa\u3002<\/p>\n<p id=\"a817\" class=\"graf graf--p graf-after--p\">\u5728 1 \u7d1a DFD \u4e2d\uff0c\u4e0a\u4e0b\u6587\u5716\u88ab\u5206\u89e3\u70ba\u591a\u500b\u6d41\u7a0b\u3002\u5728\u9019\u4e00\u5c64\u4e2d\uff0c\u6211\u5011\u7a81\u51fa\u4e86\u7cfb\u7d71\u7684\u4e3b\u8981\u529f\u80fd\uff0c\u4e26\u5c07 0 \u7d1a DFD \u7684\u9ad8\u7d1a\u6d41\u7a0b\u9032\u4e00\u6b65\u5206\u89e3\u70ba\u5b50\u6d41\u7a0b\uff0c\u4ee5\u8868\u793a\u8655\u7406\u6d3b\u52d5\u7684\u7d30\u7bc0\u3002<\/p>\n<p id=\"5243\" class=\"graf graf--p graf-after--p\"><strong class=\"markup--strong markup--p-strong\">\u4e0a\u4e0b\u6587\u5716\uff080 \u7d1a DFD\uff09\u200a<\/strong>\u00a0\u2014\u2014\u4e0a\u4e0b\u6587\u5716 DFD \u662f\u8868\u793a\u7cfb\u7d71\u6982\u89bd\u53ca\u5176\u8207\u201c\u4e16\u754c\u201d\u5176\u4ed6\u90e8\u5206\u4ea4\u4e92\u7684\u5716\u8868\u3002<\/p>\n<p id=\"f289\" class=\"graf graf--p graf-after--p\"><strong class=\"markup--strong markup--p-strong\">1 \u7d1a\u6578\u64da\u6d41\u5716<\/strong>\u200a\u2014\u20141 \u7d1a DFD \u901a\u904e\u986f\u793a\u69cb\u6210\u6574\u500b\u7cfb\u7d71\u7684\u4e3b\u8981\u5b50\u6d41\u7a0b\u548c\u6578\u64da\u5b58\u5132\uff0c\u63d0\u4f9b\u4e86\u6bd4\u4e0a\u4e0b\u6587\u5716\u66f4\u8a73\u7d30\u7684\u7cfb\u7d71\u8996\u5716\u3002<\/p>\n<p id=\"7f01\" class=\"graf graf--p graf-after--p\"><strong class=\"markup--strong markup--p-strong\">2 \u7d1a\uff08\u6216\u66f4\u4f4e\uff09<\/strong>\u00a0\u200a\u2014\u2014\u6578\u64da\u6d41\u5efa\u6a21\u6280\u8853\u7684\u4e00\u500b\u4e3b\u8981\u512a\u52e2\u662f\uff0c\u73fe\u5be6\u4e16\u754c\u7cfb\u7d71\u7684\u8a73\u7d30\u8907\u96dc\u6027\u53ef\u4ee5\u901a\u904e\u4e00\u7a2e\u7a31\u70ba\u201c\u5206\u7d1a\u201d\u7684\u6280\u8853\u5728\u62bd\u8c61\u7d1a\u5225\u9032\u884c\u7ba1\u7406\u548c\u5efa\u6a21\u3002\u4efb\u4f55\u6578\u64da\u6d41\u5716\u7684\u67d0\u4e9b\u5143\u7d20\u90fd\u53ef\u4ee5\u5728\u5c64\u6b21\u7d50\u69cb\u7684\u8f03\u4f4e\u7d1a\u5225\u5206\u89e3\uff08\u201c\u5206\u89e3\u201d\uff09\u70ba\u66f4\u8a73\u7d30\u7684\u6a21\u578b<\/p>\n<h3 id=\"8d01\" class=\"graf graf--h3 graf-after--p\"><span id=\"DFD_Levels_Example_Food_Ordering_System\">DFD \u7d1a\u5225 &#8211; \u793a\u4f8b<strong class=\"markup--strong markup--h3-strong\"><em class=\"markup--em markup--h3-em\">&#8211; \u98df\u54c1\u8a02\u8cfc\u7cfb\u7d71<\/em><\/strong><\/span><\/h3>\n<p id=\"7b50\" class=\"graf graf--p graf-after--h3\"><strong class=\"markup--strong markup--p-strong\">0\u7d1a<\/strong><\/p>\n<p id=\"e54b\" class=\"graf graf--p graf-after--p\">\u5b83\u4e5f\u88ab\u7a31\u70ba\u00a0<strong class=\"markup--strong markup--p-strong\">\u4e0a\u4e0b\u6587\u5716<\/strong>\u3002\u5b83\u88ab\u8a2d\u8a08\u6210\u4e00\u500b\u62bd\u8c61\u8996\u5716\uff0c\u5c07\u7cfb\u7d71\u986f\u793a\u70ba\u55ae\u500b\u9032\u7a0b\u53ca\u5176\u8207\u5916\u90e8\u5be6\u9ad4\u7684\u95dc\u4fc2\u3002<\/p>\n<ul class=\"postList\">\n<li id=\"3c49\" class=\"graf graf--li graf-after--p\">\u4e0a\u4e0b\u6587\u5716\u5fc5\u9808\u9069\u5408\u4e00\u9801\u3002<\/li>\n<li id=\"d17a\" class=\"graf graf--li graf-after--li\">\u4e0a\u4e0b\u6587\u5716\u4e2d\u7684\u9032\u7a0b\u540d\u7a31\u61c9\u8a72\u662f\u4fe1\u606f\u7cfb\u7d71\u7684\u540d\u7a31\u3002<\/li>\n<li id=\"be81\" class=\"graf graf--li graf-after--li\">\u4f8b\u5982\uff0c\u8a55\u5206\u7cfb\u7d71\u3001\u8a02\u55ae\u8655\u7406\u7cfb\u7d71\u3001\u8a3b\u518a\u7cfb\u7d71\u3002<\/li>\n<\/ul>\n<figure id=\"94f8\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/1fgsircZo8sN8GJUaj3F7QA.png\" data-image-id=\"1*fgsircZo8sN8GJUaj3F7QA.png\" data-width=\"862\" data-height=\"296\" \/><figcaption class=\"imageCaption\"><em class=\"markup--em markup--figure-em\">\u98df\u54c1\u8a02\u8cfc\u7cfb\u7d71 \u2014 \u4e0a\u4e0b\u6587\u5716 \u2014 0 \u7d1a DFD<\/em><\/figcaption><\/figure>\n<p id=\"1a04\" class=\"graf graf--p graf-after--figure\">\u5728 1 \u7d1a DFD \u4e2d\uff0c\u4e0a\u4e0b\u6587\u5716\u88ab\u5206\u89e3\u70ba\u591a\u500b\u6d41\u7a0b\u3002\u5728\u9019\u4e00\u5c64\u4e2d\uff0c\u6211\u5011\u7a81\u51fa\u4e86\u7cfb\u7d71\u7684\u4e3b\u8981\u529f\u80fd\uff0c\u4e26\u5c07 0 \u7d1a DFD \u7684\u9ad8\u7d1a\u6d41\u7a0b\u9032\u4e00\u6b65\u5206\u89e3\u70ba\u5b50\u6d41\u7a0b\uff0c\u4ee5\u8868\u793a\u8655\u7406\u6d3b\u52d5\u7684\u7d30\u7bc0\u3002<\/p>\n<p id=\"901f\" class=\"graf graf--p graf-after--p\"><strong class=\"markup--strong markup--p-strong\"><em class=\"markup--em markup--p-em\">\u7d1a\u5225 1 &#8211; \u98df\u54c1\u8a02\u8cfc\u7cfb\u7d71<\/em><\/strong><\/p>\n<p id=\"2869\" class=\"graf graf--p graf-after--p\">\u5728 1 \u7d1a DFD \u4e2d\uff0c\u4e0a\u4e0b\u6587\u5716\u88ab\u5206\u89e3\u70ba\u591a\u500b\u6d41\u7a0b\u3002\u5728\u9019\u4e00\u5c64\u4e2d\uff0c\u6211\u5011\u7a81\u51fa\u4e86\u7cfb\u7d71\u7684\u4e3b\u8981\u529f\u80fd\uff0c\u4e26\u5c07 0 \u7d1a DFD \u7684\u9ad8\u7d1a\u6d41\u7a0b\u9032\u4e00\u6b65\u5206\u89e3\u70ba\u5b50\u6d41\u7a0b\uff0c\u4ee5\u8868\u793a\u8655\u7406\u6d3b\u52d5\u7684\u7d30\u7bc0\u3002<\/p>\n<figure id=\"0e59\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/16dIMY1UE44SrDdFn-38jGQ.png\" data-image-id=\"1*6dIMY1UE44SrDdFn-38jGQ.png\" data-width=\"839\" data-height=\"467\" \/><figcaption class=\"imageCaption\">1 \u7d1a DFD \u2014 \u98df\u54c1\u8a02\u8cfc\u7cfb\u7d71\u793a\u4f8b<\/figcaption><\/figure>\n<p id=\"3fe7\" class=\"graf graf--p graf-after--figure\">\u5982\u679c\u4e00\u500b\u6d41\u7a0b\u5728\u5e7e\u500b\u5916\u90e8\u5be6\u9ad4\u4e4b\u9593\u6709\u5927\u91cf\u6578\u64da\u6d41\u93c8\u63a5\uff0c\u6211\u5011\u53ef\u4ee5\u5148\u5c07\u8a72\u7279\u5b9a\u6d41\u7a0b\u548c\u95dc\u806f\u7684\u5916\u90e8\u5be6\u9ad4\u63d0\u53d6\u5230\u4e00\u500b\u985e\u4f3c\u65bc\u4e0a\u4e0b\u6587\u5716\u7684\u55ae\u7368\u5716\u8868\u4e2d\uff0c\u7136\u5f8c\u518d\u5c07\u6d41\u7a0b\u7d30\u5316\u70ba\u55ae\u7368\u7684 DFD \u7d1a\u5225\uff1b\u901a\u904e\u9019\u7a2e\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u78ba\u4fdd\u5b83\u5011\u4e4b\u9593\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h3 id=\"5e02\" class=\"graf graf--h3 graf-after--p\"><span id=\"DFD_Symbols\">DFD \u7b26\u865f<\/span><\/h3>\n<p id=\"96ef\" class=\"graf graf--p graf-after--h3\">\u6709\u00a0<strong class=\"markup--strong markup--p-strong\">\u56db\u500b\u57fa\u672c\u7b26\u865f<\/strong>\u00a0\u7528\u65bc\u8868\u793a\u6578\u64da\u6d41\u5716\u3002<\/p>\n<h3 id=\"689c\" class=\"graf graf--h3 graf-after--p\"><span id=\"Process\">\u904e\u7a0b<\/span><\/h3>\n<p id=\"f695\" class=\"graf graf--p graf-after--h3\">\u4e00\u500b\u9032\u7a0b\u63a5\u6536\u8f38\u5165\u6578\u64da\u4e26\u7522\u751f\u5177\u6709\u4e0d\u540c\u5167\u5bb9\u6216\u5f62\u5f0f\u7684\u8f38\u51fa\u3002\u6d41\u7a0b\u53ef\u4ee5\u7c21\u55ae\u5230\u6536\u96c6\u8f38\u5165\u6578\u64da\u4e26\u4fdd\u5b58\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u5fa9\u96dc\u5230\u751f\u6210\u5305\u542b\u897f\u5317\u5730\u5340\u6240\u6709\u96f6\u552e\u5e97\u6708\u92b7\u552e\u984d\u7684\u5831\u544a\u3002<\/p>\n<p id=\"d4c3\" class=\"graf graf--p graf-after--p\">\u6bcf\u500b\u9032\u7a0b\u90fd\u6709\u4e00\u500b\u540d\u7a31\u4f86\u6a19\u8b58\u5b83\u57f7\u884c\u7684\u529f\u80fd\u3002<\/p>\n<p id=\"32f6\" class=\"graf graf--p graf-after--p\">\u8a72\u540d\u7a31\u7531\u4e00\u500b\u52d5\u8a5e\u7d44\u6210\uff0c\u5f8c\u8ddf\u4e00\u500b\u55ae\u6578\u540d\u8a5e\u3002<\/p>\n<p id=\"9161\" class=\"graf graf--p graf-after--p\">\u4f8b\u5b50\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"2180\" class=\"graf graf--li graf-after--p\">\u7533\u8acb\u4ed8\u6b3e<\/li>\n<li id=\"8377\" class=\"graf graf--li graf-after--li\">\u8a08\u7b97\u4f63\u91d1<\/li>\n<li id=\"8e28\" class=\"graf graf--li graf-after--li\">\u9a57\u8b49\u8a02\u55ae<\/li>\n<\/ul>\n<h4 id=\"4463\" class=\"graf graf--h4 graf-after--li\"><span id=\"DFD_Notation\">DFD \u8868\u793a\u6cd5<\/span><\/h4>\n<ul class=\"postList\">\n<li id=\"b2b8\" class=\"graf graf--li graf-after--h4\">\u5713\u89d2\u77e9\u5f62\u4ee3\u8868\u4e00\u500b\u9032\u7a0b<\/li>\n<li id=\"084f\" class=\"graf graf--li graf-after--li\">\u9032\u7a0b\u88ab\u8ce6\u4e88 ID \u4ee5\u4fbf\u65bc\u5f15\u7528<\/li>\n<\/ul>\n<figure id=\"11da\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0EDe7N518PkPxVVLo.png\" data-image-id=\"0*EDe7N518PkPxVVLo.png\" data-width=\"377\" data-height=\"71\" \/><\/figure>\n<h4 id=\"af8f\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Process_Example\">\u6d41\u7a0b\u793a\u4f8b<\/span><\/h4>\n<figure id=\"5dfa\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0Ec6H3EPselPHna9t.png\" data-image-id=\"0*Ec6H3EPselPHna9t.png\" data-width=\"539\" data-height=\"140\" \/><\/figure>\n<h4 id=\"8cfc\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Data_Flow\">\u6578\u64da\u6d41<\/span><\/h4>\n<p id=\"d620\" class=\"graf graf--p graf-after--h4\">\u6578\u64da\u6d41\u662f\u6578\u64da\u5f9e\u4fe1\u606f\u7cfb\u7d71\u7684\u4e00\u500b\u90e8\u5206\u79fb\u52d5\u5230\u53e6\u4e00\u500b\u90e8\u5206\u7684\u8def\u5f91\u3002\u6578\u64da\u6d41\u53ef\u4ee5\u8868\u793a\u55ae\u500b\u6578\u64da\u5143\u7d20\uff0c\u4f8b\u5982\u5ba2\u6236 ID\uff0c\u4e5f\u53ef\u4ee5\u8868\u793a\u4e00\u7d44\u6578\u64da\u5143\u7d20\uff08\u6216\u6578\u64da\u7d50\u69cb\uff09\u3002<\/p>\n<p id=\"7183\" class=\"graf graf--p graf-after--p\">\u4f8b\u5b50\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"ea21\" class=\"graf graf--li graf-after--p\">Customer_info\uff08\u59d3\u6c0f\u3001\u540d\u5b57\u3001SS#\u3001\u96fb\u8a71\u865f\u78bc\u7b49\uff09<\/li>\n<li id=\"e3d2\" class=\"graf graf--li graf-after--li\">Order_info\uff08OrderId\u3001Item#\u3001OrderDate\u3001CustomerID \u7b49\uff09\u3002<\/li>\n<\/ul>\n<h4 id=\"b4a9\" class=\"graf graf--h4 graf-after--li\"><span id=\"Data_flow_Example\">\u6578\u64da\u6d41\u793a\u4f8b\uff1a<\/span><\/h4>\n<figure id=\"f6db\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0vzLEdbukTYs6Dvsf.png\" data-image-id=\"0*vzLEdbukTYs6Dvsf.png\" data-width=\"331\" data-height=\"140\" \/><\/figure>\n<h4 id=\"876a\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Notation\">\u7b26\u865f<\/span><\/h4>\n<ul class=\"postList\">\n<li id=\"b617\" class=\"graf graf--li graf-after--h4\">\u5e36\u6709\u50b3\u5165\u7bad\u982d\u7684\u76f4\u7dda\u662f\u8f38\u5165\u6578\u64da\u6d41<\/li>\n<li id=\"4326\" class=\"graf graf--li graf-after--li\">\u5e36\u5916\u5411\u7bad\u982d\u7684\u76f4\u7dda\u662f\u8f38\u51fa\u6578\u64da\u6d41<\/li>\n<\/ul>\n<p id=\"e2fc\" class=\"graf graf--p graf-after--li\">\u6ce8\u610f\uff1a<\/p>\n<p id=\"af07\" class=\"graf graf--p graf-after--p\">\u56e0\u70ba\u6bcf\u500b\u9032\u7a0b\u90fd\u5c07\u6578\u64da\u5f9e\u4e00\u7a2e\u5f62\u5f0f\u66f4\u6539\u70ba\u53e6\u4e00\u7a2e\u5f62\u5f0f\uff0c\u6240\u4ee5\u6bcf\u500b\u9032\u7a0b\u7b26\u865f\u5fc5\u9808\u81f3\u5c11\u6709\u4e00\u500b\u6578\u64da\u6d41\u9032\u5165\uff0c\u4e00\u500b\u6578\u64da\u6d41\u5fc5\u9808\u9000\u51fa\u3002<\/p>\n<h3 id=\"2247\" class=\"graf graf--h3 graf-after--p\"><span id=\"Data_Store\">\u6578\u64da\u5b58\u5132<\/span><\/h3>\n<p id=\"ca21\" class=\"graf graf--p graf-after--h3\">\u6578\u64da\u6d41\u5716\u4e2d\u4f7f\u7528\u6578\u64da\u5b58\u5132\u6216\u6578\u64da\u5b58\u5132\u5eab\u4f86\u8868\u793a\u7cfb\u7d71\u5fc5\u9808\u4fdd\u7559\u6578\u64da\u7684\u60c5\u6cc1\uff0c\u56e0\u70ba\u4e00\u500b\u6216\u591a\u500b\u9032\u7a0b\u9700\u8981\u5728\u4ee5\u5f8c\u4f7f\u7528\u5b58\u5132\u7684\u6578\u64da\u3002<\/p>\n<h4 id=\"7137\" class=\"graf graf--h4 graf-after--p\"><span id=\"Notation1\">\u7b26\u865f<\/span><\/h4>\n<ul class=\"postList\">\n<li id=\"51ca\" class=\"graf graf--li graf-after--h4\">\u53ef\u4ee5\u5c07\u6578\u64da\u5beb\u5165\u6578\u64da\u5b58\u5132\u5340\uff0c\u7531\u5916\u5411\u7bad\u982d\u8868\u793a<\/li>\n<li id=\"d832\" class=\"graf graf--li graf-after--li\">\u53ef\u4ee5\u5f9e\u6578\u64da\u5b58\u5132\u4e2d\u8b80\u53d6\u6578\u64da\uff0c\u6578\u64da\u5b58\u5132\u7531\u50b3\u5165\u7bad\u982d\u8868\u793a\u3002<\/li>\n<li id=\"2f79\" class=\"graf graf--li graf-after--li\">\u4f8b\u5982\uff1a\u5eab\u5b58\u3001\u61c9\u6536\u8cec\u6b3e\u3001\u8a02\u55ae\u548c\u6bcf\u65e5\u4ed8\u6b3e\u3002<\/li>\n<\/ul>\n<figure id=\"778b\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/02k_6sJt529bF_gsS.png\" data-image-id=\"0*2k_6sJt529bF_gsS.png\" data-width=\"418\" data-height=\"41\" \/><\/figure>\n<h4 id=\"ea69\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Data_Store_Example\">\u6578\u64da\u5b58\u5132\u793a\u4f8b<\/span><\/h4>\n<figure id=\"c483\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0569xERyhl7UZTw8E.png\" data-image-id=\"0*569xERyhl7UZTw8E.png\" data-width=\"334\" data-height=\"180\" \/><\/figure>\n<p id=\"d1a8\" class=\"graf graf--p graf-after--figure\">\u6ce8\u610f\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"a221\" class=\"graf graf--li graf-after--p\">\u6578\u64da\u5b58\u5132\u5fc5\u9808\u901a\u904e\u6578\u64da\u6d41\u9023\u63a5\u5230\u6d41\u7a0b\u3002<\/li>\n<li id=\"43e5\" class=\"graf graf--li graf-after--li\">\u6bcf\u500b\u6578\u64da\u5b58\u5132\u5fc5\u9808\u5177\u6709\u81f3\u5c11\u4e00\u500b\u8f38\u5165\u6578\u64da\u6d41\u548c\u81f3\u5c11\u4e00\u500b\u8f38\u51fa\u6578\u64da\u6d41\uff08\u5373\u4f7f\u8f38\u51fa\u6578\u64da\u6d41\u662f\u63a7\u88fd\u6216\u78ba\u8a8d\u6d88\u606f\uff09\u3002<\/li>\n<\/ul>\n<h3 id=\"bfa8\" class=\"graf graf--h3 graf-after--li\"><span id=\"External_Entity\">\u5916\u90e8\u5be6\u9ad4<\/span><\/h3>\n<p id=\"a752\" class=\"graf graf--p graf-after--h3\">\u5916\u90e8\u5be6\u9ad4\u662f\u5411\u7cfb\u7d71\u63d0\u4f9b\u6578\u64da\u6216\u5f9e\u7cfb\u7d71\u63a5\u6536\u8f38\u51fa\u7684\u500b\u4eba\u3001\u90e8\u9580\u3001\u5916\u90e8\u7d44\u7e54\u6216\u5176\u4ed6\u4fe1\u606f\u7cfb\u7d71\u3002\u5916\u90e8\u5be6\u9ad4\u662f\u4fe1\u606f\u7cfb\u7d71\u908a\u754c\u4e4b\u5916\u7684\u7d44\u4ef6\u3002\u5b83\u5011\u4ee3\u8868\u4e86\u4fe1\u606f\u7cfb\u7d71\u5982\u4f55\u8207\u5916\u90e8\u4e16\u754c\u4ea4\u4e92\u3002<\/p>\n<ul class=\"postList\">\n<li id=\"7bcf\" class=\"graf graf--li graf-after--p\">\u4e00\u500b\u77e9\u5f62\u4ee3\u8868\u4e00\u500b\u5916\u90e8\u5be6\u9ad4<\/li>\n<li id=\"0e0b\" class=\"graf graf--li graf-after--li\">\u4ed6\u5011\u8981\u4e48\u63d0\u4f9b\u6578\u64da\uff0c\u8981\u4e48\u63a5\u6536\u6578\u64da<\/li>\n<li id=\"9d29\" class=\"graf graf--li graf-after--li\">\u4ed6\u5011\u4e0d\u8655\u7406\u6578\u64da<\/li>\n<\/ul>\n<h4 id=\"d044\" class=\"graf graf--h4 graf-after--li\"><span id=\"Notation2\">\u7b26\u865f<\/span><\/h4>\n<ul class=\"postList\">\n<li id=\"6ee1\" class=\"graf graf--li graf-after--h4\">\u5ba2\u6236\u63d0\u4ea4\u8a02\u55ae\uff0c\u7136\u5f8c\u5f9e\u7cfb\u7d71\u6536\u5230\u8cec\u55ae<\/li>\n<li id=\"ab62\" class=\"graf graf--li graf-after--li\">\u4f9b\u61c9\u5546\u958b\u5177\u767c\u7968<\/li>\n<\/ul>\n<figure id=\"c830\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0NKFTg1DoOboXpTc.png\" data-image-id=\"0*NKFTg1DoOboXpTc_.png\" data-width=\"390\" data-height=\"41\" \/><\/figure>\n<h4 id=\"d473\" class=\"graf graf--h4 graf-after--figure\"><span id=\"External_Entity_Example\">\u5916\u90e8\u5be6\u9ad4\u793a\u4f8b<\/span><\/h4>\n<figure id=\"ca7d\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0hfTApAURxleMa6XZ.png\" data-image-id=\"0*hfTApAURxleMa6XZ.png\" data-width=\"311\" data-height=\"71\" \/><\/figure>\n<p id=\"ff78\" class=\"graf graf--p graf-after--figure\">\u6ce8\u610f\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"4dfa\" class=\"graf graf--li graf-after--p\">\u5916\u90e8\u5be6\u9ad4\u4e5f\u88ab\u7a31\u70ba\u7d42\u7d50\u8005\uff0c\u56e0\u70ba\u5b83\u5011\u662f\u6578\u64da\u6e90\u6216\u6700\u7d42\u76ee\u7684\u5730\u3002<\/li>\n<li id=\"28a9\" class=\"graf graf--li graf-after--li graf--trailing\">\u5916\u90e8\u5be6\u9ad4\u5fc5\u9808\u901a\u904e\u6578\u64da\u6d41\u9023\u63a5\u5230\u6d41\u7a0b\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"section section--body section--last\">\n<div class=\"section-divider\">\n<hr class=\"section-divider\" \/>\n<\/div>\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<h3 id=\"df4f\" class=\"graf graf--h3 graf--leading\"><span id=\"Rule_of_Data_Flow\">\u6578\u64da\u6d41\u898f\u5247<\/span><\/h3>\n<p id=\"0441\" class=\"graf graf--p graf-after--h3\">\u958b\u767c DFD \u7684\u898f\u5247\u4e4b\u4e00\u662f\u6240\u6709\u6d41\u7a0b\u90fd\u5fc5\u9808\u4ee5\u8655\u7406\u6b65\u9a5f\u958b\u59cb\u548c\u7d50\u675f\u3002\u9019\u662f\u975e\u5e38\u5408\u4e4e\u908f\u8f2f\u7684\uff0c\u56e0\u70ba\u6578\u64da\u4e0d\u80fd\u96a8\u8457\u8655\u7406\u800c\u81ea\u884c\u8f49\u63db\u3002\u901a\u904e\u4f7f\u7528\u62c7\u6307\u898f\u5247\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u8b58\u5225\u975e\u6cd5\u6578\u64da\u6d41\u4e26\u5728 DFD \u4e2d\u7cfe\u6b63\u5b83\u5011\u3002<\/p>\n<h4 id=\"96c2\" class=\"graf graf--h4 graf-after--p\"><span id=\"Wrong_Right_Description\">\u932f\u8aa4\/\u6b63\u78ba\u63cf\u8ff0<\/span><\/h4>\n<figure id=\"8116\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0mO8fiwOTgYQuyRPL.png\" data-image-id=\"0*mO8fiwOTgYQuyRPL.png\" data-width=\"296\" data-height=\"42\" \/><\/figure>\n<figure id=\"2dd6\" class=\"graf graf--figure graf-after--figure\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0Y6pRNDUxux0qwlD0.png\" data-image-id=\"0*Y6pRNDUxux0qwlD0.png\" data-width=\"355\" data-height=\"71\" \/><\/figure>\n<p id=\"6baa\" class=\"graf graf--p graf-after--figure\">\u4e00\u500b\u5be6\u9ad4\u4e0d\u80fd\u5728\u6c92\u6709\u9032\u884c\u67d0\u4e9b\u8655\u7406\u7684\u60c5\u6cc1\u4e0b\u5411\u53e6\u4e00\u500b\u5be6\u9ad4\u63d0\u4f9b\u6578\u64da\u3002<\/p>\n<figure id=\"dd87\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0TPIsRd6pLvxKfuIc.png\" data-image-id=\"0*TPIsRd6pLvxKfuIc.png\" data-width=\"316\" data-height=\"42\" \/><\/figure>\n<figure id=\"d185\" class=\"graf graf--figure graf-after--figure\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0lihI4SPMnbJkeaFa.png\" data-image-id=\"0*lihI4SPMnbJkeaFa.png\" data-width=\"375\" data-height=\"71\" \/><\/figure>\n<p id=\"8187\" class=\"graf graf--p graf-after--figure\">\u6578\u64da\u4e0d\u80fd\u5728\u672a\u7d93\u8655\u7406\u7684\u60c5\u6cc1\u4e0b\u76f4\u63a5\u5f9e\u5be6\u9ad4\u79fb\u52d5\u5230\u6578\u64da\u6545\u4e8b\u3002<\/p>\n<figure id=\"df9c\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0k7BuGRnRgKJqzmpk.png\" data-image-id=\"0*k7BuGRnRgKJqzmpk.png\" data-width=\"316\" data-height=\"41\" \/><\/figure>\n<figure id=\"bbee\" class=\"graf graf--figure graf-after--figure\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0scBg7WRzIF69UTRK.png\" data-image-id=\"0*scBg7WRzIF69UTRK.png\" data-width=\"375\" data-height=\"71\" \/><\/figure>\n<p id=\"da62\" class=\"graf graf--p graf-after--figure\">\u672a\u7d93\u8655\u7406\u7684\u6578\u64da\u4e0d\u80fd\u76f4\u63a5\u5f9e\u6578\u64da\u5b58\u5132\u4e2d\u79fb\u52d5\u3002<\/p>\n<figure id=\"dc34\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0AZXi_Ona2406ZNT.png\" data-image-id=\"0*AZXi_Ona2406ZNT-.png\" data-width=\"336\" data-height=\"41\" \/><\/figure>\n<figure id=\"a005\" class=\"graf graf--figure graf-after--figure\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/02KaheQzAdmwNKcjr.png\" data-image-id=\"0*2KaheQzAdmwNKcjr.png\" data-width=\"395\" data-height=\"71\" \/><\/figure>\n<p id=\"a3f9\" class=\"graf graf--p graf-after--figure\">\u6578\u64da\u4e0d\u80fd\u5728\u672a\u7d93\u8655\u7406\u7684\u60c5\u6cc1\u4e0b\u76f4\u63a5\u5f9e\u4e00\u500b\u6578\u64da\u5b58\u5132\u79fb\u52d5\u5230\u53e6\u4e00\u500b\u6578\u64da\u5b58\u5132\u3002<\/p>\n<h3 id=\"1c08\" class=\"graf graf--h3 graf-after--p\"><span id=\"Other_frequently-made_mistakes_in_DFD\">DFD \u4e2d\u7684\u5176\u4ed6\u5e38\u898b\u932f\u8aa4<\/span><\/h3>\n<p id=\"b84a\" class=\"graf graf--p graf-after--h3\">\u7576\u4e00\u500b\u8655\u7406\u6b65\u9a5f\u7684\u8f38\u51fa\u8207\u5176\u8f38\u5165\u4e0d\u5339\u914d\u6642\uff0c\u6703\u51fa\u73fe\u7b2c\u4e8c\u985e DFD \u932f\u8aa4\uff0c\u5b83\u5011\u53ef\u4ee5\u5206\u985e\u70ba\uff1a<\/p>\n<ul class=\"postList\">\n<li id=\"26fb\" class=\"graf graf--li graf-after--p\">\u9ed1\u6d1e\u2014\u2014\u4e00\u500b\u8655\u7406\u6b65\u9a5f\u53ef\u80fd\u6709\u8f38\u5165\u6d41\u4f46\u6c92\u6709\u8f38\u51fa\u6d41\u3002<\/li>\n<li id=\"9ed0\" class=\"graf graf--li graf-after--li\">\u5947\u8e5f\u2014\u2014\u4e00\u500b\u8655\u7406\u6b65\u9a5f\u53ef\u80fd\u6709\u8f38\u51fa\u6d41\u4f46\u6c92\u6709\u8f38\u5165\u6d41\u3002<\/li>\n<li id=\"5838\" class=\"graf graf--li graf-after--li\">\u7070\u6d1e\u2014\u2014\u4e00\u500b\u8655\u7406\u6b65\u9a5f\u7684\u8f38\u51fa\u53ef\u80fd\u5927\u65bc\u5176\u8f38\u5165\u7684\u7e3d\u548c<\/li>\n<\/ul>\n<figure id=\"01b5\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0Lj0XP6QTspzza5vD.png\" data-image-id=\"0*Lj0XP6QTspzza5vD.png\" data-width=\"634\" data-height=\"468\" \/><\/figure>\n<h3 id=\"c9dd\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Free_UML_Tool\">\u514d\u8cbb\u7684 UML \u5de5\u5177<\/span><\/h3>\n<ul class=\"postList\">\n<li id=\"8a80\" class=\"graf graf--li graf-after--h3\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/dfd-maker\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/dfd-maker\/\">\u5728\u7dda\u6578\u64da\u6d41\u7a0b\u5716\u88fd\u4f5c\u5668<\/a><\/li>\n<li id=\"dc8b\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/tutorials\/how-to-create-data-flow-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/tutorials\/how-to-create-data-flow-diagram\/\">\u5982\u4f55\u5275\u5efa\u6578\u64da\u6d41\u5716\uff08DFD\uff09\uff1f<\/a><\/li>\n<li id=\"ad68\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/solution\/drawdfd\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/solution\/drawdfd\/\">\u6578\u64da\u6d41\u5716 (DFD) \u8edf\u4ef6<\/a><\/li>\n<\/ul>\n<h4 id=\"3bd4\" class=\"graf graf--h4 graf-after--li\"><span id=\"DFD_Different_Notation\">DFD \u4e0d\u540c\u8868\u793a\u6cd5<\/span><\/h4>\n<ul class=\"postList\">\n<li id=\"318f\" class=\"graf graf--li graf-after--h4 graf--trailing\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/cn\/knowledge\/software-design\/gane-sarson-dfd-tutorial\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/cn\/knowledge\/software-design\/gane-sarson-dfd-tutorial\/\">Gane-Sarson \u6578\u64da\u6d41\u7a0b\u5716\u6559\u7a0b<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>\u5118\u7ba1\u9762\u5411\u6578\u64da\u6d41\u7684\u5efa\u6a21\u88ab\u4e00\u4e9b\u8edf\u4ef6\u5de5\u7a0b\u5e2b\u8a8d\u70ba\u662f\u4e00\u7a2e\u904e\u6642\u7684\u6280\u8853\uff0c\u4f46\u5b83\u4ecd\u7136\u662f\u6700\u5ee3\u6cdb\u4f7f\u7528\u7684\u9700\u6c42\u5206\u6790\u7b26\u865f\u4e4b\u4e00\u3002\u5118\u7ba1\u6578\u64da\u6d41\u5716\uff08DFDs\uff09\u4e0d\u662fUML\u7684\u6b63\u5f0f\u90e8\u5206\uff0c\u4f46\u5b83\u5011\u53ef\u4ee5\u7528\u4f86\u88dc\u5145UML\u5716\uff0c\u4e26\u63d0\u4f9b\u5c0d\u7cfb\u7d71\u9700\u6c42\u548c\u904e\u7a0b\u7684\u984d\u5916\u6d1e\u5bdf\u529b\u3002<\/p>\n","protected":false},"author":4,"featured_media":5351,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[13,5,3],"tags":[],"class_list":["post-5346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagrams","category-software-engineering","category-unified-modeling-language"],"yoast_head":"<!-- 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