{"id":1835,"date":"2026-03-26T22:43:31","date_gmt":"2026-03-26T22:43:31","guid":{"rendered":"https:\/\/www.tech-posts.com\/cn\/validating-system-requirements-through-dfd-walkthroughs\/"},"modified":"2026-03-26T22:43:31","modified_gmt":"2026-03-26T22:43:31","slug":"validating-system-requirements-through-dfd-walkthroughs","status":"publish","type":"post","link":"https:\/\/www.tech-posts.com\/cn\/validating-system-requirements-through-dfd-walkthroughs\/","title":{"rendered":"DFD\u6307\u5357\uff1a\u901a\u8fc7\u6570\u636e\u6d41\u56fe\u8bc4\u5ba1\u9a8c\u8bc1\u7cfb\u7edf\u9700\u6c42"},"content":{"rendered":"<p>\u5728\u7cfb\u7edf\u5de5\u7a0b\u548c\u8f6f\u4ef6\u5f00\u53d1\u9886\u57df\uff0c\u9700\u6c42\u4e0e\u4ea4\u4ed8\u7ed3\u679c\u4e4b\u95f4\u7684\u5dee\u8ddd\u5f80\u5f80\u6e90\u4e8e\u6c9f\u901a\u6a21\u7cca\u3002\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u4f5c\u4e3a\u62bd\u8c61\u9700\u6c42\u4e0e\u5177\u4f53\u5b9e\u73b0\u903b\u8f91\u4e4b\u95f4\u7684\u89c6\u89c9\u6865\u6881\u3002\u901a\u8fc7\u7ed3\u6784\u5316\u7684\u8bc4\u5ba1\u6d41\u7a0b\u9a8c\u8bc1\u7cfb\u7edf\u9700\u6c42\uff0c\u53ef\u786e\u4fdd\u5728\u7f16\u7801\u5f00\u59cb\u524d\uff0c\u6240\u6709\u6570\u636e\u6d41\u52a8\u3001\u8f6c\u6362\u548c\u5b58\u50a8\u9700\u6c42\u90fd\u5f97\u5230\u5145\u5206\u8003\u8651\u3002\u8fd9\u4e00\u8fc7\u7a0b\u51cf\u5c11\u4e86\u8fd4\u5de5\uff0c\u5e76\u4f7f\u6280\u672f\u5b9e\u73b0\u4e0e\u4e1a\u52a1\u610f\u56fe\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p>\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5229\u7528DFD\u8bc4\u5ba1\u6765\u9a8c\u8bc1\u9700\u6c42\u7684\u65b9\u6cd5\u8bba\u3002\u5185\u5bb9\u6db5\u76d6\u6570\u636e\u5efa\u6a21\u7684\u57fa\u7840\u8981\u7d20\u3001\u6267\u884c\u9a8c\u8bc1\u4f1a\u8bae\u7684\u7a0b\u5e8f\u6b65\u9aa4\uff0c\u4ee5\u53ca\u7528\u4e8e\u5224\u65ad\u6210\u529f\u4e0e\u5426\u7684\u5ea6\u91cf\u6807\u51c6\u3002\u901a\u8fc7\u5173\u6ce8\u4fe1\u606f\u6d41\u52a8\u800c\u975e\u4ec5\u529f\u80fd\u7279\u6027\uff0c\u56e2\u961f\u80fd\u591f\u53d1\u73b0\u4f20\u7edf\u6587\u672c\u9700\u6c42\u5e38\u88ab\u5ffd\u7565\u7684\u903b\u8f91\u6f0f\u6d1e\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn infographic illustrating how to validate system requirements using Data Flow Diagram walkthroughs, featuring core DFD components (processes, data stores, external entities, data flows), a 6-step walkthrough journey path, common discrepancy warnings (black hole, gray hole, unbalanced stores), success metrics gauges, and best practices checklist, all rendered in thick outline stroke style with soft watercolor fills on 16:9 horizontal layout\" decoding=\"async\" src=\"https:\/\/www.tech-posts.com\/wp-content\/uploads\/2026\/03\/validating-system-requirements-dfd-walkthrough-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\udde9 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\u4e3a\u6210\u529f\u8bc4\u5ba1\u505a\u597d\u51c6\u5907<\/h2>\n<p>\u8fdb\u884c\u8d70\u67e5\u662f\u4e00\u9879\u9700\u8981\u51c6\u5907\u7684\u4e25\u8c28\u6d3b\u52a8\u3002\u5728\u6ca1\u6709\u660e\u786e\u8bae\u7a0b\u7684\u60c5\u51b5\u4e0b\u5306\u5fd9\u8fdb\u5165\u4f1a\u8bae\uff0c\u901a\u5e38\u4f1a\u5bfc\u81f4\u504f\u79bb\u4e3b\u9898\u548c\u95ee\u9898\u65e0\u6cd5\u89e3\u51b3\u3002\u51c6\u5907\u9636\u6bb5\u4e3a\u9ad8\u6548\u9a8c\u8bc1\u5de5\u4f5c\u5960\u5b9a\u4e86\u57fa\u7840\u3002<\/p>\n<p><strong>1. \u7ec4\u5efa\u5408\u9002\u7684\u53c2\u4e0e\u8005<\/strong><\/p>\n<p>\u8d70\u67e5\u56e2\u961f\u5e94\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u4e1a\u52a1\u5206\u6790\u5e08\uff1a<\/strong>\u89e3\u91ca\u4e1a\u52a1\u89c4\u5219\u548c\u9700\u6c42\u3002<\/li>\n<li><strong>\u7cfb\u7edf\u67b6\u6784\u5e08\uff1a<\/strong>\u786e\u4fdd\u6d41\u7a0b\u7684\u6280\u672f\u53ef\u884c\u6027\u3002<\/li>\n<li><strong>\u5229\u76ca\u76f8\u5173\u8005\uff1a<\/strong>\u786e\u8ba4\u6a21\u578b\u4e0e\u4ed6\u4eec\u5bf9\u7cfb\u7edf\u7684\u5fc3\u7406\u6a21\u578b\u4e00\u81f4\u3002<\/li>\n<li><strong>\u5f00\u53d1\u4eba\u5458\uff1a<\/strong>\u63d0\u4f9b\u5173\u4e8e\u5b9e\u73b0\u7ea6\u675f\u7684\u89c1\u89e3\u3002<\/li>\n<\/ul>\n<p><strong>2. \u660e\u786e\u8303\u56f4<\/strong><\/p>\n<p>\u4e0d\u8981\u8bd5\u56fe\u4e00\u6b21\u6027\u9a8c\u8bc1\u6574\u4e2a\u7cfb\u7edf\u3002\u5c06\u6570\u636e\u6d41\u56fe\uff08DFD\uff09\u5206\u89e3\u4e3a\u903b\u8f91\u5c42\u7ea7\u3002\u4ece\u4e0a\u4e0b\u6587\u56fe\uff08\u7b2c0\u5c42\uff09\u5f00\u59cb\uff0c\u5b83\u5c06\u7cfb\u7edf\u8868\u793a\u4e3a\u4e00\u4e2a\u4e0e\u5916\u90e8\u5b9e\u4f53\u4ea4\u4e92\u7684\u5355\u4e00\u8fc7\u7a0b\u3002\u7136\u540e\u8fdb\u5165\u7b2c1\u5c42\uff0c\u5c06\u4e3b\u8fc7\u7a0b\u5206\u89e3\u4e3a\u5b50\u8fc7\u7a0b\u3002\u8fd9\u79cd\u5206\u5c42\u65b9\u6cd5\u53ef\u9632\u6b62\u8ba4\u77e5\u8fc7\u8f7d\u3002<\/p>\n<p><strong>3. \u5efa\u7acb\u57fa\u7ebf<\/strong><\/p>\n<p>\u786e\u4fdd\u9700\u6c42\u6587\u6863\u5df2\u7248\u672c\u5316\u5e76\u8fbe\u6210\u4e00\u81f4\u3002\u6570\u636e\u6d41\u56fe\u5fc5\u987b\u80fd\u591f\u8ffd\u6eaf\u5230\u5177\u4f53\u7684\u9700\u6c42\u7f16\u53f7\u3002\u521b\u5efa\u4e00\u4e2a\u53ef\u8ffd\u6eaf\u6027\u77e9\u9635\uff0c\u5c06\u6bcf\u4e2a\u6570\u636e\u6d41\u4e0e\u9700\u6c42\u6761\u76ee\u5173\u8054\u8d77\u6765\u3002\u5728\u8d70\u67e5\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u67d0\u4e2a\u6570\u636e\u6d41\u65e0\u6cd5\u8ffd\u6eaf\uff0c\u5219\u6807\u8bb0\u4e3a\u5b64\u7acb\u9879\u3002<\/p>\n<p><strong>4. \u5206\u53d1\u9884\u8bfb\u6750\u6599<\/strong><\/p>\n<p>\u5728\u4f1a\u8bae\u5f00\u59cb\u524d\u81f3\u5c1124\u5c0f\u65f6\u53d1\u9001\u56fe\u8868\u548c\u9700\u6c42\u6587\u6863\u3002\u8fd9\u4f7f\u53c2\u4e0e\u8005\u6709\u65f6\u95f4\u5ba1\u9605\u5185\u5bb9\u5e76\u51c6\u5907\u95ee\u9898\u3002\u4f1a\u8bae\u4e2d\u7684\u65f6\u95f4\u5e94\u7528\u4e8e\u8ba8\u8bba\u548c\u89e3\u51b3\u95ee\u9898\uff0c\u800c\u4e0d\u662f\u9605\u8bfb\u6750\u6599\u3002<\/p>\n<h2>\ud83d\udeb6 \u6309\u6b65\u9aa4\u8fdb\u884c\u8d70\u67e5<\/h2>\n<p>\u8d70\u67e5\u7684\u6267\u884c\u9075\u5faa\u4e00\u4e2a\u7ed3\u6784\u5316\u6d41\u7a0b\u3002\u4e3b\u6301\u4eba\u5f15\u5bfc\u56e2\u961f\u904d\u5386\u56fe\u8868\uff0c\u4ece\u6e90\u5934\u5230\u76ee\u7684\u5730\u8ffd\u8e2a\u6bcf\u4e00\u6761\u8def\u5f84\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u5e38\u88ab\u79f0\u4e3a\u201c\u8ffd\u8e2a\u6d41\u7a0b\u201d\u3002<\/p>\n<ol>\n<li><strong>\u4ece\u5916\u90e8\u5b9e\u4f53\u5f00\u59cb\uff1a<\/strong>\u8bc6\u522b\u6570\u636e\u6765\u6e90\u3002\u63d0\u95ee\uff1a\u201c\u8fd9\u4e9b\u6570\u636e\u6765\u81ea\u54ea\u91cc\uff1f\u201d\u9a8c\u8bc1\u8be5\u6765\u6e90\u662f\u5426\u5728\u9700\u6c42\u4e2d\u660e\u786e\u8bf4\u660e\u3002\u68c0\u67e5\u6570\u636e\u7c7b\u578b\u548c\u9891\u7387\u3002<\/li>\n<li><strong>\u8ffd\u8e2a\u8f93\u5165\u6d41\uff1a<\/strong>\u8ddf\u968f\u8fdb\u5165\u7b2c\u4e00\u4e2a\u8fc7\u7a0b\u7684\u7bad\u5934\u3002\u63d0\u95ee\uff1a\u201c\u8fd9\u4e9b\u6570\u636e\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u201d\u662f\u5426\u88ab\u5b58\u50a8\uff1f\u662f\u5426\u88ab\u8f6c\u6362\uff1f\u662f\u5426\u4f20\u9012\u5230\u53e6\u4e00\u4e2a\u8fc7\u7a0b\uff1f<\/li>\n<li><strong>\u9a8c\u8bc1\u8fc7\u7a0b\u903b\u8f91\uff1a<\/strong>\u9488\u5bf9\u6bcf\u4e2a\u8fc7\u7a0b\u6846\uff0c\u5ba1\u67e5\u8f6c\u6362\u89c4\u5219\u3002\u786e\u4fdd\u8f93\u51fa\u6570\u636e\u6839\u636e\u4e1a\u52a1\u89c4\u5219\u4e0e\u8f93\u5165\u6570\u636e\u7684\u9884\u671f\u7ed3\u679c\u4e00\u81f4\u3002\u68c0\u67e5\u5b8c\u6574\u6027\uff1a\u6240\u6709\u5fc5\u9700\u7684\u8f93\u5165\u662f\u5426\u90fd\u5df2\u5b58\u5728\uff1f<\/li>\n<li><strong>\u68c0\u67e5\u6570\u636e\u5b58\u50a8\uff1a<\/strong>\u5f53\u6570\u636e\u6d41\u8fdb\u5165\u6570\u636e\u5b58\u50a8\u65f6\uff0c\u9a8c\u8bc1\u5b58\u50a8\u9700\u6c42\u3002\u7cfb\u7edf\u662f\u5426\u9700\u8981\u6c38\u4e45\u4fdd\u7559\u6b64\u6570\u636e\uff1f\u662f\u5426\u6709\u4fdd\u7559\u7b56\u7565\uff1f\u662f\u5426\u5df2\u5b9a\u4e49\u540e\u7eed\u4f7f\u7528\u7684\u68c0\u7d22\u6d41\u7a0b\uff1f<\/li>\n<li><strong>\u9a8c\u8bc1\u8f93\u51fa\u6d41\uff1a<\/strong>\u8ddf\u968f\u79bb\u5f00\u7cfb\u7edf\u7684\u7bad\u5934\u3002\u5b83\u4eec\u662f\u5426\u7b26\u5408\u62a5\u544a\u3001\u901a\u77e5\u6216API\u54cd\u5e94\u7684\u9700\u6c42\uff1f\u786e\u4fdd\u654f\u611f\u6570\u636e\u4e0d\u4f1a\u6d41\u5411\u672a\u7ecf\u6388\u6743\u7684\u5916\u90e8\u5b9e\u4f53\u3002<\/li>\n<li><strong>\u95ed\u5408\u56de\u8def\uff1a<\/strong> \u786e\u4fdd\u7cfb\u7edf\u5185\u751f\u6210\u7684\u6240\u6709\u6570\u636e\u90fd\u6709\u660e\u786e\u7684\u53bb\u5411\u3002\u5b64\u7acb\u7684\u8f93\u51fa\u8868\u660e\u8bbe\u8ba1\u5b58\u5728\u7f3a\u9677\u3002<\/li>\n<\/ol>\n<p> \u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u4f7f\u7528\u767d\u677f\u6216\u6570\u5b57\u753b\u5e03\u5bf9\u56fe\u8868\u8fdb\u884c\u6807\u6ce8\u3002\u7528\u7279\u5b9a\u989c\u8272\u6807\u8bb0\u4e0d\u786e\u5b9a\u7684\u533a\u57df\u3002\u4e0d\u8981\u8bd5\u56fe\u7acb\u5373\u89e3\u51b3\u6bcf\u4e2a\u95ee\u9898\uff1b\u5c06\u5176\u8bb0\u5f55\u5728\u884c\u52a8\u65e5\u5fd7\u4e2d\uff0c\u7559\u5f85\u540e\u7eed\u5904\u7406\u3002<\/p>\n<h2>\ud83d\udd75\ufe0f\u200d\u2642\ufe0f \u8bc6\u522b\u5e38\u89c1\u5dee\u5f02<\/h2>\n<p>\u7ecf\u9a8c\u8868\u660e\uff0c\u67d0\u4e9b\u7c7b\u578b\u7684\u9519\u8bef\u5728\u7cfb\u7edf\u6a21\u578b\u4e2d\u53cd\u590d\u51fa\u73b0\u3002\u8bc6\u522b\u8fd9\u4e9b\u6a21\u5f0f\u53ef\u4ee5\u52a0\u5feb\u9a8c\u8bc1\u8fc7\u7a0b\u3002\u4e0b\u8868\u5217\u51fa\u4e86\u5728DFD\u8bc4\u5ba1\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u7684\u5e38\u89c1\u95ee\u9898\u53ca\u5176\u5178\u578b\u539f\u56e0\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5dee\u5f02\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u9a8c\u8bc1\u5f71\u54cd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u9ed1\u6d1e<\/strong><\/td>\n<td>\u4e00\u4e2a\u8fc7\u7a0b\u6709\u8f93\u5165\u4f46\u6ca1\u6709\u8f93\u51fa\u3002<\/td>\n<td>\u6570\u636e\u88ab\u6d88\u8017\u4f46\u65e0\u7ed3\u679c\u3002\u8868\u660e\u5b58\u5728\u7f3a\u5931\u7684\u903b\u8f91\u6216\u672a\u6ee1\u8db3\u7684\u9700\u6c42\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7070\u6d1e<\/strong><\/td>\n<td>\u4e00\u4e2a\u8fc7\u7a0b\u6709\u8f93\u5165\u548c\u8f93\u51fa\uff0c\u4f46\u8f93\u51fa\u5728\u903b\u8f91\u4e0a\u5e76\u4e0d\u6e90\u81ea\u8f93\u5165\u3002<\/td>\n<td>\u6697\u793a\u5b58\u5728\u672a\u5728\u9700\u6c42\u4e2d\u4f53\u73b0\u7684\u9690\u85cf\u903b\u8f91\u3002\u5b9e\u65bd\u9519\u8bef\u98ce\u9669\u8f83\u9ad8\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5b50\u8fc7\u7a0b\u8fdd\u89c4<\/strong><\/td>\n<td>\u4f4e\u5c42\u7ea7\u56fe\u8868\u663e\u793a\u4e86\u7236\u56fe\u4e2d\u4e0d\u5b58\u5728\u7684\u6570\u636e\u6d41\u3002<\/td>\n<td>\u5206\u89e3\u9519\u8bef\u3002\u8303\u56f4\u8513\u5ef6\u6216\u9057\u6f0f\u4e86\u7236\u7ea7\u9700\u6c42\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6570\u636e\u5b58\u50a8\u4e0d\u5e73\u8861<\/strong><\/td>\n<td>\u6570\u636e\u8fdb\u5165\u5b58\u50a8\u4f46\u4ece\u672a\u79bb\u5f00\uff0c\u6216\u53cd\u4e4b\uff0c\u4e14\u65e0\u5408\u7406\u89e3\u91ca\u3002<\/td>\n<td>\u8868\u660e\u5b58\u5728\u5b64\u7acb\u7684\u6570\u636e\u6216\u7f3a\u5931\u7684\u68c0\u7d22\u9700\u6c42\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5916\u90e8\u5b9e\u4f53\u73af\u8def<\/strong><\/td>\n<td>\u6570\u636e\u4ece\u5b9e\u4f53A\u6d41\u5411\u7cfb\u7edf\uff0c\u518d\u6d41\u5411\u5b9e\u4f53B\uff0c\u7136\u540e\u76f4\u63a5\u8fd4\u56de\u5b9e\u4f53A\u3002<\/td>\n<td>\u53ef\u80fd\u8868\u660e\u7cfb\u7edf\u88ab\u7ed5\u8fc7\uff0c\u6216\u5bf9\u8fb9\u754c\u5b58\u5728\u8bef\u89e3\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u8bc4\u5ba1\u8fc7\u7a0b\u4e2d\u89e3\u51b3\u8fd9\u4e9b\u5dee\u5f02\uff0c\u53ef\u9632\u6b62\u5b83\u4eec\u6210\u4e3a\u751f\u4ea7\u7cfb\u7edf\u4e2d\u7684\u7f3a\u9677\u3002\u6bcf\u4e2a\u8bc6\u522b\u51fa\u7684\u95ee\u9898\u90fd\u5e94\u8bb0\u5f55\u5728\u6848\uff0c\u9644\u5e26\u4e25\u91cd\u7a0b\u5ea6\u8bc4\u7ea7\uff0c\u5e76\u5206\u914d\u7ed9\u8d1f\u8d23\u4eba\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<h2>\ud83d\udcc8 \u8861\u91cf\u9a8c\u8bc1\u6709\u6548\u6027<\/h2>\n<p>\u4f60\u5982\u4f55\u5224\u65ad\u8bc4\u5ba1\u8fc7\u7a0b\u662f\u6210\u529f\u7684\uff1f\u4ec5\u4f9d\u8d56\u4e3b\u89c2\u7684\u201c\u611f\u89c9\u201d\u662f\u4e0d\u591f\u7684\u3002\u5e94\u4f7f\u7528\u5b9a\u91cf\u548c\u5b9a\u6027\u6307\u6807\u6765\u8bc4\u4f30\u9a8c\u8bc1\u7684\u8d28\u91cf\u3002<\/p>\n<ul>\n<li><strong>\u9700\u6c42\u8986\u76d6\u5ea6\uff1a<\/strong>\u8ba1\u7b97\u5728DFD\u4e2d\u5177\u6709\u5bf9\u5e94\u89c6\u89c9\u5143\u7d20\u7684\u9700\u6c42\u6240\u5360\u7684\u767e\u5206\u6bd4\u3002\u5173\u952e\u6d41\u7a0b\u8fbe\u5230100%\u8986\u76d6\u662f\u6807\u51c6\u76ee\u6807\u3002<\/li>\n<li><strong>\u95ee\u9898\u53d1\u73b0\u7387\uff1a<\/strong>\u8ddf\u8e2a\u8bc4\u5ba1\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u7684\u7f3a\u9677\u6570\u91cf\u4e0e\u6d4b\u8bd5\u9636\u6bb5\u53d1\u73b0\u7684\u6570\u91cf\u3002\u5728\u9700\u6c42\u9a8c\u8bc1\u9636\u6bb5\u53d1\u73b0\u7387\u9ad8\uff0c\u8868\u660e\u8bc4\u5ba1\u6d41\u7a0b\u7a33\u5065\u3002<\/li>\n<li><strong>\u53ef\u8ffd\u6eaf\u6027\u5b8c\u6574\u6027\uff1a<\/strong> 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