Question: Data Flow diagrams Should be consistent with DFD fragments and internally consistent at all levels. (I.e. context, level 0 and level 1). 1. Context Diagram
Data Flow diagrams Should be consistent with DFD fragments and internally consistent at all levels. (I.e. context, level 0 and level 1).
1. Context Diagram for your sub system
2. Diagram 0 for your sub system
3. One Level 1 Diagram
Draw this 3 diagram for under this topic "About marketing and research (Lead generations and attract new customers)".
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