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Data Flow Diagrams - Part 2 Hierarchical DFDs

Data Flow Diagrams - Part 2 Hierarchical DFDs. Temporary Data store. Can use T to indicate a temporary data store usually manual eg in tray, where orders are placed before filing. T1. Hierarchical DFDs. DFDs are hierarchical Top-down stepwise refinement is employed

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Level 1 dfds - PowerPoint PPT Presentation

Data Flow Diagrams - Part 2 Hierarchical DFDs