5ed_solutions_01

5ed_solutions_01 - Systems Analysis and Design in a...

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Systems Analysis and Design in a Changing World, Fifth Edition 1-1 Chapter 1 – The World of the Systems Analyst Solutions to End-of-Chapter Material Review Questions 1. Give an example of a business problem. See page 5 for some examples. The answer should focus on the business needs of the problem. Business problems that are applicable for information systems include either a business process that requires or processes information. The other type of applicable business problem entails producing reports or providing critical information to the organization. For example, the self-insured health insurance program needs to project expenses for the next year based on past claims, changes in employee demographics, and estimated increases in health care costs. Notice that this example has an extensive requirement for information that can best be provided by a computer system. 2. What are the main steps followed when solving a problem? Research and understand the problem, verify that the benefits of solving the problem outweigh the costs, define requirements for a solution, develop a set of possible solutions (alternatives), decide which solution is best, define the details of the chosen solution, and monitor to make sure that you obtain the desired benefits. (See Figure 1-1) 3. Define system. A collection of interrelated components that function together to achieve some outcome. 4. Define information system. A collection of interrelated components that collect, process, store, and provide as output the information needed to complete business tasks. 5. What are the types of information systems found in most organizations? Customer relationship management system, Accounting and financial management system, Manufacturing management system, and Human resources management system, Knowledge management system, Business intelligence system, Supply chaine management system, Collaboration support system. (see Figure 1-5) 6. List the six fundamental technologies an analyst needs to understand. Computers and how they work; file, database, and storage technologies; input and output hardware; computer networks and protocols; programming languages and operating systems; and communication and collaboration
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Systems Analysis and Design in a Changing World, Fifth Edition 1-2 7. List four types of tools the analyst needs to use to develop systems. Software packages used to develop systems, integrated development environments (IDEs), computer-aided system modeling and code generation tools, testing tools, and documentation support tools. 8. List five types of techniques used during system development. Project planning techniques, cost/benefit analysis techniques, interviewing techniques, requirements modeling techniques, architectural design techniques, network configuration techniques, and database design techniques. 9.
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This note was uploaded on 11/16/2011 for the course MATH 407 taught by Professor H.ayad during the Spring '11 term at Cairo University.

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5ed_solutions_01 - Systems Analysis and Design in a...

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