{"id":552,"date":"2026-03-24T07:27:09","date_gmt":"2026-03-24T07:27:09","guid":{"rendered":"https:\/\/www.visualize-ai.com\/cn\/step-by-step-guide-to-drawing-data-flows\/"},"modified":"2026-03-24T07:27:09","modified_gmt":"2026-03-24T07:27:09","slug":"step-by-step-guide-to-drawing-data-flows","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/cn\/step-by-step-guide-to-drawing-data-flows\/","title":{"rendered":"DFD\u6307\u5357\uff1a\u7ed8\u5236\u6570\u636e\u6d41\u7684\u9010\u6b65\u6307\u5357"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Charcoal sketch infographic illustrating the step-by-step process of creating Data Flow Diagrams (DFDs), showing the four core symbols (external entity, process, data store, data flow), three-level decomposition hierarchy from context diagram to Level 1, naming conventions, and validation rules for visualizing data movement in system analysis\" decoding=\"async\" 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