How are mutually exclusive data flows (i.e., alternative paths through a process) depicted in DFDs?
Answer to relevant QuestionsDiscuss several ways to verify the correctness of a process model.Draw a level 0 data flow diagram (DFD) for the process of buying glasses in Exercise A, Chapter 4.Draw a level 0 data flow diagram (DFD) for the Of-the-Month Club system in Exercise I, Chapter 4.Resolve the M:N relationship between the sale and available tune that is shown in Figure 6-14. What kinds of information could you capture about this relationship? What would the new ERD look like? Would the intersection ...Define what is meant by a relationship in a data model. How should a relationship be named? What information about a relationship should be stored in the CASE repository?
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