WebA data flow diagram or DFD is a visual map of how data flows in an information system or process. Trace your data from its source and transformations to its storage and … WebFeb 16, 2015 · Data Flow Diagram (DFD) provides a visual representation of the flow of information (i.e. data) within a system. By drawing a Data Flow Diagram, you can tell the information supplied by and delivered to someone who take parts in system processes, the information needed in order to complete the processes and the information needed to be …
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