TutorialWeek04Ans - Systems Analysis Tutorial Week 4...

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Systems Analysis - Tutorial Week 4- Solution NOTE: All page numbers referred are from the textbook, Satzinger, J, Jackson, R.B. & Burd, S.D. (2007) . Systems analysis and design in a changing world, (5 th ed.). Boston, Massachusetts: Course Technology. 1. What is the difference between functional requirements and non-functional requirements? Functional requirements define the functions or user services that will be supported by the system. Such things as support of business processes and reports are included in functional requirements. Non-functional requirements are other technical specifications and include such things as technical, performance, usability, reliability, and security requirements. 2. Explain the use of a discovery prototype and an evolutionary prototype. A discovery prototype is used to help understand user requirements. Often the users are not sure what capabilities are needed in a system, or how certain functions should work. A discovery prototype can be built to help define and refine the business activity as a combined manual/computer process. Usually discovery prototypes are considered throwaway prototypes. An evolutionary prototype, on the other hand, is one that is expected to grow and evolve until it eventually becomes the final working system. It may be used for discovery, but its main objective is to become the final system. 3. List and describe the three fact-finding themes. What are the business operations and processes? The purpose of the first theme is to identify the various business processes that must be supported in the new system. The standard question to users is, “What do you do?” or “What are your job responsibilities?” How should those operations be performed? The purpose of the second theme is to understand the details of the business process in the
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This note was uploaded on 02/15/2010 for the course ITC 254 taught by Professor No during the Three '10 term at Charles Sturt University.

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TutorialWeek04Ans - Systems Analysis Tutorial Week 4...

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