Mapping of ERD to DFD
Explain the mapping of ERD to DFD?
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The mapping of ERD to DFD is as follows:
I. Entities within ERD must correspond to an existing entity/store within DFD
II. Entity within DFD is transformed to attributes of an entity within ERD
III. Connections within ERD has 1 to 1 correspondence to processes within DFD
IV. A connection within ERD has 1 to 1 correspondence to flows within DFD.
V. Entities within ERD must correspond to an existing entity/store within DFD.
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