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A data flow diagram (DFD) shows how data is processed within a system based on inputs and outputs. Visual symbols are used to represent the flow of information, data sources and destinations, and where data is stored. There are two main types of notation used for data flow diagrams: Yourdon-Coad and Gane-Sarson, both named after their creators.

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Data Flow Diagram for WebSpellChecker Cloud Free Users

Infotip

DFD Notation: Gane-Sarson

DFD Level: 2

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