week01 - Systems Analysis and Design in a Changing World,...

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1 Systems Analysis and Design in a Changing World, Fifth Edition 1 Learning Objectives r Explain the key role of a systems analyst in business r Describe the various types of systems an analyst might work on r Explain the importance of technical, people, and business skills for an analyst r Explain why ethical behavior is crucial for a systems analyst’s career Systems Analysis and Design in a Changing World, 5th Edition 2
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1 Learning Objectives (continued) r Describe various job titles in the field and places of employment where analysis and design work is done r Discuss the analyst’s role in strategic planning for an organization r Describe the analyst’s role in a system development project Systems Analysis and Design in a Changing World, 5th Edition 3 1 Overview r Information systems are c Crucial to success of modern business organizations c Constantly being developed to make business more competitive c Impact productivity and profits r Keys to successful system development c Thorough systems analysis and design c Understanding what business requires Systems Analysis and Design in a Changing World, 5th Edition 4
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1 Overview (continued) r Systems analysis – process of understanding in detail what a system should accomplish r Systems design – process of specifying in detail how components of an information system should be physically implemented r Systems analyst – uses analysis and design techniques to solve business problems using information technology Systems Analysis and Design in a Changing World, 5th Edition 5 1 The Analyst as a Business Problem Solver r Has computer technology knowledge and programming expertise r Understands business problems r Uses logical methods for solving problems r Has fundamental curiosity r Wants to make things better r Is more of a business problem solver than a technical programmer Systems Analysis and Design in a Changing World, 5th Edition 6
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1 Analyst’s Approach to Problem Solving Systems Analysis and Design in a Changing World, 5th Edition 7 Verify benefits of solving problem outweigh the costs Research and understand the problem Define the requirements for solving the problem Develop a set of possible solutions (alternatives) Define the details of the chosen solution Monitor to ensure desired results Decide which solution is best and recommend Implement the solution 1 Systems That Solve Business Problems r System – a collection of interrelated components functioning together to achieve an outcome r Information systems – collection of interrelated components that collect, process, store, and provide as output the information needed to complete business tasks r Subsystem – part of a larger system r Functional decomposition – dividing a system into smaller subsystems and components Systems Analysis and Design in a Changing World, 5th Edition 8
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1 Information Systems and Subsystems Figure 1-2 Systems Analysis and Design in a Changing World, 5th Edition 9 1 Information Systems and Component Parts Figure 1-3 Systems Analysis and Design in a Changing World, 5th Edition 10
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week01 - Systems Analysis and Design in a Changing World,...

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