structuring system process requirements

Project Description:

please read the attached file and answer the following :
1. describe the dimension of system processes illustrated with data flow diagramming (why we do you do dfd)?
2. explain why there are multiple level of dfd diagrams when they are used to depict system processes
3. explain in simple terms what is meant when it is said that dfd is a process of functional decomposition?
4. how can we determine when a data flow diagramming effort is complete? that is when you reach primitive level.
5. identify and explain the major components used in a decision table.
6. how does the construction of a decision table help in structuring system process requirements?
7. why we do activity diagram since we did case diagram? use case diagram do not pike the conditional logic
8. differentiate the purposes of building use case diagrams, activity diagram, and sequence diagrams ( it would be helpful to identify the dimension of system logical structure that each of these methods depict) red test , behaviors, time sequence
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