Explain DFD

Explain about the data flow diagrams(DFD)?

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Data Flow Diagrams (DFD) are also called as the data flow graphs or the bubble charts. A DFD provides the purpose of clarifying the system requirements and recognizing the major transformations. DFDs display the flow of data through the system. It refers to an essential modelling tool which enables us to picture the system as the network of the functional processes.

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