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chap005Day5 - Systems Analysis Many phases(steps used in...

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1-1 Systems Analysis Many phases (steps) used in designing a new system Organizations choose to use a number and variety of different methods to perform these tasks Regardless of the methodology or techniques the eight phases that we are focusing upon must be completed properly
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1-2 Systems Analysis vs. Systems Design Systems analysis – a problem-solving technique that breaks a system down into its pieces to study how well those parts work and interact to accomplish their purpose. Systems design – a complementary problem-solving technique that reassembles a system’s component pieces back into a complete system— hopefully, an improved system. This may involves adding, deleting, and changing pieces relative to the original system. The techniques used to complete the phases may be used in BPR.
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1-3 FAST Systems Analysis Phases Scope Definition Phase Is the project worth looking at? What are the parameters of this project? Problem Analysis Phase Is a new system worth building? What is the problem and can a new system resolve them? Requirements Analysis Phase What do the users need and want from the new system? Logical Design Phase What must the new system do? Decision Analysis Phase What is the best solution?
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1-4 Tasks for the Scope Definition Phase of Systems Analysis Steering body – a committee of executive business and system managers that studies and prioritizes competing project proposals to determine which projects will return the most value to the organization and thus should be approved for continued systems development.
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