Question: Why are many correct logical DFD solutions possible Why is
Why are many correct logical DFD solutions possible? Why is only one correct physical DFD solution possible?
Answer to relevant QuestionsExplain why a flow from a higher- to a lower-numbered bubble on a logical DFD is a physical manifestation of the system. Give an example.“Because there are computer-based documentation products that can draw data flow diagrams and systems flowcharts, learning to draw them manually is a waste of time.” Do you agree? Discuss fully.Prepare a narrative to describe the system depicted in the logical DFD in Figure.What are the basic components of a database management system (DBMS)? Discuss the relationship between the above components of DBMS and the functional model of information systems discussed in Chapter 1.Why have object-oriented databases not replaced relational databases in business information system applications?
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