1. Develop a context diagram and a top-level DFD to model the data flows involved in registering for classes at your college or university. Then model the student registration system in a use case diagram and write a textual description for one of the use cases.
2. Discuss the differences between data stores on a DFD and an entity-relationship diagram for the same information system application. What purpose does each serve? What does each explain or show that the other does not?
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