(Answered) 1 what is a process model what is a data flow diagram dfd

Engineering

1. What is a process model? What is a data flow diagram (DFD)? Are the two related? If so, how?

2. Distinguish between logical process models and physical process models.

3. Define what is meant by a process in a process model. How should a process be named? What information about a process should be stored in the CASE repository?

4. Define what is meant by a data ?ow in a process model. How should a data ?ow be named? What information about a data ?ow should be stored in the CASE repository?

5. Define what is meant by a data store in a process model. How should a data store be named? What information about a data store should be stored in the CASE repository?

6. Define what is meant by an external entity in a process model? How should an external entity be named? What information about an external entity should be stored in the CASE repository?

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