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. 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