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system analysis and design
Part 1: Answer the Module Review Questions listed below. These questions were chosen to demonstrate your understanding and help you assess your progress.
- What is the purpose of creating a logical process model and then a physical process model? What information is found on the physical DFD that is not included on the logical DFD?
- Distinguish between a control module, subordinate module, and library module on a structure chart. Can a particular module be all three? Why or why not?
- Where does the analyst find the information needed to create a structure chart? Describe the purpose of program specification.
- What is the difference between structured programming and event-driven programming?
Part 2: Module Practice:
Critique the following structure chart that depicts a guest making a hotel reservation. Describe the chart in terms of fan-in, fan-out, coupling, and cohesion. Redraw the chart to improve the design.
(structure chart is attached)