Explain the process of balancing a set of DFDs.
Answer to relevant QuestionsHow are mutually exclusive data flows (i.e., alternative paths through a process) depicted in DFDs? Suppose that your goal is to create a set of DFDs. How would you begin an interview with a knowledgeable user? How would you begin a JAD session?Draw a level 0 data flow diagram (DFD) for the Picnics R Us system in Exercise H, Chapter 4.Locate the dependent entities on Figure. Locate the identifying relationships. How did you find them? Can you create a rule that describes the association between dependent entities and identifyingrelationships?Define what is meant by an attribute in a data model. How should an attribute be named? What information about an attribute should be stored in the CASE repository?
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