QCE Digital Solutions Unit 3: Data flow diagrams
Students draw context diagrams and Level 1 data flow diagrams from a scenario and check them against the DFD rules.
One content description from the full QCE Digital Solutions Unit 3 — Interactions Between Users, Data and Digital Systems journey. All 7 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (7)
1
Context diagram (Level 0): system and entities
2
Context diagram (Level 0): data flows
3
Drawing a context diagram from a scenario
4
Data flow diagram (Level 1): processes
5
Data flow diagram (Level 1): data stores and entities
6
Data flow diagram (Level 1): data flows
7
Drawing a Level 1 data flow diagram from a scenario
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