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?
Answer to relevant QuestionsWhy is a process model typically composed of a set of DFDs? What is meant by decomposition of a business process?Explain the use of structured English in process descriptions.How can you make a DFD easier to understand? Draw a level 0 data flow diagram (DFD) for the Picnics R Us system in Exercise H, 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 ...
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