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What is Understanding Data Flow Diagrams (DFD) about?

A Data Flow Diagram (DFD) visually represents the flow of data within an information system, highlighting incoming, outgoing, and stored data. There are two main types of DFDs: Logical DFDs, which focus on system processes, and Physical DFDs, which detail actual data flow implementation. DFDs consist of components such as entities, processes, data storage, and data flow, and are categorized into levels that range from high-level context diagrams to detailed sub-processes.

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23342

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