Why do we need to document an information system- what is a
1. Why do we need to document an Information System?
2. What is a physical data flow diagram (DFD)?
3. What is a logical data flow diagram (DFD)?
4. Describe the symbols used in constructing data flow diagrams.
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1 what is an e-r diagram2 describe the symbols used in constructing e-r diagrams3 what is a table of entities and
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discussionreview the course material and other literature on the keys issues and trends in itdiscussion questions1
1 what is the difference between a context diagram a logical dfd and a physical dfd2 what is a systems flowchart3 what
1 why do we need to document an information system2 what is a physical data flow diagram dfd3 what is a logical data
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multiple regression for this assignment you are required to complete problem 64 p 593 in chapter 12 of your textbook
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