{"id":5589,"date":"2022-01-26T01:52:47","date_gmt":"2022-01-26T01:52:47","guid":{"rendered":"https:\/\/www.cybermedian.com\/tw\/?p=5589"},"modified":"2026-04-20T09:13:11","modified_gmt":"2026-04-20T09:13:11","slug":"%e7%b3%bb%e7%b5%b1%e4%b8%8a%e4%b8%8b%e6%96%87%e5%9c%96%e5%92%8cdfd%e6%9c%89%e4%bb%80%e9%ba%bc%e9%97%9c%e4%bf%82%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/tw\/what-is-the-relationship-between-system-context-diagram-and-dfd\/","title":{"rendered":"\u7cfb\u7d71\u4e0a\u4e0b\u6587\u5716\u548cDFD\u6709\u4ec0\u9ebc\u95dc\u4fc2\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=\"d84e\" class=\"graf graf--p graf-after--h3\">\u7cfb\u7d71\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/knowledge\/system-context-diagram\/what-is-system-context-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/knowledge\/system-context-diagram\/what-is-system-context-diagram\/\">\u4e0a\u4e0b\u6587\u5716<\/a>\u00a0\uff08\u4e5f\u7a31\u70ba 0 \u7d1a<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\/\">\u00a0DFD<\/a>\uff09\u662f\u6578\u64da\u6d41\u5716\u4e2d\u7684\u6700\u9ad8\u5c64\uff0c\u50c5\u5305\u542b\u4e00\u500b\u8868\u793a\u6574\u500b\u7cfb\u7d71\u7684\u9032\u7a0b\uff0c\u8a72\u9032\u7a0b\u5efa\u7acb\u4e86\u8981\u5efa\u6a21\u7684\u7cfb\u7d71\u7684\u4e0a\u4e0b\u6587\u548c\u908a\u754c\u3002\u5b83\u8b58\u5225\u7cfb\u7d71\u8207\u5916\u90e8\u5be6\u9ad4\uff08\u5373\u53c3\u8207\u8005\uff09\u4e4b\u9593\u7684\u4fe1\u606f\u6d41\u3002<\/p>\n<p id=\"d9bb\" class=\"graf graf--p 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href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\">\u7de8\u8f2f\u6b64\u5716\u8868<\/a><\/p>\n<h3 id=\"03ad\" class=\"graf graf--h3 graf-after--p\"><span id=\"The_purpose_of_the_system_context_diagram\">\u7cfb\u7d71\u4e0a\u4e0b\u6587\u5716\u7684\u76ee\u7684<\/span><\/h3>\n<p id=\"065e\" class=\"graf graf--p graf-after--h3\">\u7cfb\u7d71\u4e0a\u4e0b\u6587\u5716\u7684\u76ee\u6a19\u662f\u5c07\u6ce8\u610f\u529b\u96c6\u4e2d\u5728\u958b\u767c\u4e00\u7d44\u7cfb\u7d71\u8981\u6c42\u548c\u7d04\u675f\u6642\u61c9\u8003\u616e\u7684\u5916\u90e8\u56e0\u7d20\u548c\u4e8b\u4ef6\u3002\u7cfb\u7d71\u4e0a\u4e0b\u6587\u5716\u901a\u5e38\u5728\u9805\u76ee\u65e9\u671f\u7528\u65bc\u78ba\u5b9a\u8abf\u67e5\u7bc4\u570d\u3002<\/p>\n<p id=\"4acb\" class=\"graf graf--p graf-after--p\">\u7cfb\u7d71\u4e0a\u4e0b\u6587\u5716\u8868\u793a\u53ef\u80fd\u8207\u7cfb\u7d71\u4ea4\u4e92\u7684\u6240\u6709\u5916\u90e8\u5be6\u9ad4\u3002\u6574\u500b\u8edf\u4ef6\u7cfb\u7d71\u770b\u8d77\u4f86\u50cf\u4e00\u500b\u55ae\u4e00\u7684\u9032\u7a0b\u3002\u9019\u6a23\u7684\u5716\u63cf\u7e6a\u4e86\u4e00\u500b\u4f4d\u65bc\u4e2d\u5fc3\u7684\u7cfb\u7d71\uff0c\u6c92\u6709\u5176\u5167\u90e8\u7d50\u69cb\u7684\u7d30\u7bc0\uff0c\u88ab\u74b0\u5883\u4e2d\u7684\u6240\u6709\u5916\u90e8\u5be6\u9ad4\u548c\u4ea4\u4e92\u7cfb\u7d71\u5305\u570d\u3002<\/p>\n<h4 id=\"787f\" class=\"graf graf--h4 graf-after--p\"><span id=\"What_is_Top-Down_Decomposition\">\u4ec0\u9ebc\u662f\u81ea\u9802\u5411\u4e0b\u5206\u89e3\uff1f<\/span><\/h4>\n<p id=\"8d22\" class=\"graf graf--p graf-after--h4\">\u5728\u81ea\u4e0a\u800c\u4e0b\u7684\u8a2d\u8a08\u4e2d\uff0c\u8a2d\u8a08\u4e86\u7cfb\u7d71\u7684\u6982\u8ff0\uff0c\u6307\u5b9a\u4f46\u4e0d\u8a73\u7d30\u8aaa\u660e\u4efb\u4f55\u7d1a\u5225\u7684\u5b50\u7cfb\u7d71\u3002\u7136\u5f8c\uff0c\u5c0d\u6bcf\u500b\u5b50\u7cfb\u7d71\u9032\u884c\u66f4\u8a73\u7d30\u7684\u7d30\u5316\uff0c\u4f8b\u5982\uff0c\u6709\u6642\u5c07\u5176\u5283\u5206\u70ba\u8a31\u591a\u4e0d\u540c\u7684\u5b50\u7cfb\u7d71\u7d1a\u5225\uff0c\u5f9e\u800c\u5c07\u6574\u500b\u898f\u7bc4\u5206\u89e3\u70ba\u57fa\u672c\u5143\u7d20\u3002<\/p>\n<p id=\"066a\" class=\"graf graf--p graf-after--p\">\u81ea\u9802\u5411\u4e0b\u8a2d\u8a08\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c07\u7cfb\u7d71\u5206\u89e3\u70ba\u66f4\u5c0f\u7684\u90e8\u5206\uff0c\u4ee5\u4fbf\u4e86\u89e3\u5176\u5b50\u7cfb\u7d71\u3002\u4e00\u65e6\u78ba\u5b9a\u4e86\u9019\u4e9b\u57fa\u672c\u5143\u7d20\uff0c\u5b83\u5011\u5c31\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u69cb\u5efa\u5230\u8a08\u7b97\u6a5f\u6a21\u584a\u4e2d\u3002\u69cb\u5efa\u6a21\u584a\u5f8c\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u5b83\u5011\u7d44\u5408\u5728\u4e00\u8d77\u4e26\u5f9e\u9019\u4e9b\u55ae\u7368\u7684\u5143\u7d20\u69cb\u5efa\u6574\u500b\u7cfb\u7d71\u3002<\/p>\n<h3 id=\"f120\" class=\"graf graf--h3 graf-after--p\"><span id=\"Top-Level_Context-Level_Diagram\">\u9802\u5c64\u4e0a\u4e0b\u6587\u7d1a\u5716<\/span><\/h3>\n<p id=\"9343\" class=\"graf graf--p graf-after--h3\">\u4e0a\u4e0b\u6587\u5716\u63d0\u4f9b\u4e86\u4e00\u500b\u6982\u8ff0\uff0c\u5b83\u662f\u6578\u64da\u6d41\u5716\u4e2d\u7684\u6700\u9ad8\u7d1a\u5225\uff0c\u50c5\u5305\u542b\u4e00\u500b\u4ee3\u8868\u6574\u500b\u7cfb\u7d71\u7684\u9032\u7a0b\u3002\u61c9\u8a72\u5c07\u5176\u62c6\u5206\u70ba\u63d0\u4f9b\u66f4\u591a\u7d30\u7bc0\u7684\u4e3b\u8981\u6d41\u7a0b\uff0c\u4e26\u4e14\u6bcf\u500b\u4e3b\u8981\u6d41\u7a0b\u53ef\u4ee5\u9032\u4e00\u6b65\u62c6\u5206\u4ee5\u63d0\u4f9b\u66f4\u591a\u7d30\u7bc0\u3002<\/p>\n<ul class=\"postList\">\n<li id=\"31a6\" class=\"graf graf--li graf-after--p\">\u6240\u6709\u5916\u90e8\u5be6\u9ad4\u4ee5\u53ca\u9032\u51fa\u5b83\u5011\u7684\u4e3b\u8981\u6578\u64da\u6d41\u90fd\u986f\u793a\u5728\u4e0a\u4e0b\u6587\u5716\u4e0a\u3002<\/li>\n<li id=\"2823\" class=\"graf graf--li graf-after--li\">\u8a72\u5716\u4e0d\u5305\u542b\u4efb\u4f55\u6578\u64da\u5b58\u5132\u3002<\/li>\n<li id=\"06ed\" class=\"graf graf--li graf-after--li\">\u4e0a\u4e0b\u6587\u7d1a\u5716\u4e2d\u7684\u55ae\u500b\u9032\u7a0b\u4ee3\u8868\u6574\u500b\u7cfb\u7d71\uff0c\u53ef\u4ee5\u5206\u89e3\u70ba\u5c07\u7cfb\u7d71\u7684\u4e3b\u8981\u9032\u7a0b\u5305\u542b\u5728\u4e0b\u4e00\u7d1a\u5716\u4e2d\uff0c\u7a31\u70ba\u5716 0\u3002<\/li>\n<\/ul>\n<figure id=\"ae36\" 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\/0UUy6B-hUvPU0IwS5.png\" data-image-id=\"0*UUy6B-hUvPU0IwS5.png\" data-width=\"478\" data-height=\"245\" \/><\/figure>\n<h3 id=\"f581\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Level_1_DFD\">1\u7d1aDFD<\/span><\/h3>\n<p id=\"1211\" class=\"graf graf--p graf-after--h3\">\u5716 0 \u4e2d\u7684\u6d41\u7a0b\uff08\u5e36\u6709\u6574\u6578\uff09\u53ef\u4ee5\u9032\u4e00\u6b65\u5c55\u958b\u4ee5\u8868\u793a\u8655\u7406\u6d3b\u52d5\u7684\u8a73\u7d30\u4fe1\u606f\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u986f\u793a\u4e86\u6d41\u7a0b\u7206\u70b8\u7684\u4e0b\u4e00\u500b\u7d1a\u5225\uff08\uff08\u5716 1\uff09\u3002<\/p>\n<p id=\"de98\" class=\"graf graf--p graf-after--p\">\u6ce8\u610f\uff1a<\/p>\n<p id=\"29f2\" class=\"graf graf--p graf-after--p\">\u96d6\u7136\u4e0b\u9762\u7684level 1 DFD\u53ea\u6709\u4e09\u500b\u6d41\u7a0b\uff0c\u4f46\u662f\u5f9e\u6d41\u7a0b\u5230\u5916\u90e8\u5be6\u9ad4\u7684\u8f38\u5165\u548c\u8f38\u5165\u76f8\u7576\u591a\uff0c\u6700\u7d42\u53ef\u80fd\u5728\u5716\u4e2d\u51fa\u73fe\u5e7e\u689d\u4ea4\u53c9\u7dda\uff1b\u70ba\u4e86\u907f\u514d\u9019\u500b\u554f\u984c\uff0c\u6211\u5011\u53ef\u4ee5\u5728 DFD \u4e2d\u4f7f\u7528\uff08\u4e3b\u8996\u5716\u548c\u8f14\u52a9\u8996\u5716\uff09\u540c\u4e00\u5916\u90e8\u5be6\u9ad4\u7684\u591a\u500b\u8996\u5716\u3002<\/p>\n<figure id=\"43eb\" 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\/0T29bIDs3UALgHp9a.png\" data-image-id=\"0*T29bIDs3UALgHp9a.png\" data-width=\"715\" data-height=\"655\" \/><\/figure>\n<h3 id=\"3db1\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Level_2_DFD\">2\u7d1aDFD<\/span><\/h3>\n<p id=\"8e78\" class=\"graf graf--p graf-after--h3\">\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<figure id=\"262c\" 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\/0LKmM5RYhHrpTrGLt.png\" data-image-id=\"0*LKmM5RYhHrpTrGLt.png\" data-width=\"794\" data-height=\"690\" \/><\/figure>\n<h4 id=\"d3e4\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Model_Consistency_of_DFD_Between_Levels\">\u5c64\u9593DFD\u6a21\u578b\u4e00\u81f4\u6027<\/span><\/h4>\n<p id=\"a62a\" class=\"graf graf--p graf-after--h4\">\u7576\u5c0d DFD \u57f7\u884c\u81ea\u4e0a\u800c\u4e0b\u7684\u5206\u89e3\u5230\u8f03\u4f4e\u7d1a\u5225\u7684 DFD \u6642\uff0c\u8f38\u5165\u548c\u8f38\u51fa\u5fc5\u9808\u5728 DFD \u7684\u7d1a\u5225\u4e4b\u9593\u4fdd\u6301\u4e0d\u8b8a\u3002\u4f8b\u5982\uff0c\u7d1a\u5225 n \u548c n+1 \u5fc5\u9808\u5177\u6709\u76f8\u540c\u7684\u8f38\u5165\u548c\u8f38\u51fa<\/p>\n<figure id=\"4af0\" class=\"graf graf--figure graf-after--p graf--trailing\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/tw\/wp-content\/uploads\/sites\/5\/2022\/01\/0okOL184fBcmESu1r.png\" data-image-id=\"0*okOL184fBcmESu1r.png\" data-width=\"949\" data-height=\"660\" \/><\/figure>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"section section--body\">\n<div class=\"section-divider\">\n<hr 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