Chapter01 (1) - Systems Analysis & Design 7th Edition...

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1 7 th Edition Chapter 1
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2 Chapter Objectives Discuss the impact of information technology on business strategy and success Define an information system and describe its components Explain how profiles and models can represent business functions and operations Explain how the Internet has affected business strategies and relationships Identify various types of information systems and explain who uses them
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3 Chapter Objectives Explain modeling, prototyping, and CASE tools Distinguish between structured analysis and object-oriented analysis Compare the systems development life cycle waterfall model to adaptive models Discuss the role of the information technology department and the systems analysts who work there
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4 Introduction Companies use information as a weapon in the battle to increase productivity, deliver quality products and services, maintain customer loyalty, and make sound decisions Information technology can mean the difference between success and failure
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5 The Impact of Information Technology Information Technology Combination of hardware and software products and services that companies use to manage, access, communicate, and share information A vital asset that must be used effectively, updated constantly, and safeguarded carefully
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6 The Impact of Information Technology The Future of IT Accounts for almost 30 percent of America’s economic growth, and the wage gaps between IT workers and all other workers will continue to widen Global online population skyrocketed between 2000 and 2005
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7 The Impact of Information Technology The Role of Systems Analysis and Design Systems Analysis and Design Step-by-step process for developing high- quality information systems Systems Analyst Plan, develop, and maintain information systems
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8 The Impact of Information Technology Who develops Information Systems? In-house applications Software packages Internet-based application services Outsourcing Custom solutions Enterprise-wide software strategies How versus What
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9 Information System Components A system is a set of related components that produces specific results A mission-critical system is one that is vital to a company’s operations Data consists of basic facts that are the system’s raw material
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10 Hardware Moore’s Law Software System software Application software Enterprise applications Horizontal system Information System Components
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11 Information System Components Software Vertical system Legacy systems Data Tables Linking
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12 Information System Components Processes Define the tasks and business functions that users, managers, and IT staff members perform to achieve specific results People Users, or end users, are the people who interact with an information system, both inside and outside the company
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13 Understanding The Business
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This note was uploaded on 11/25/2010 for the course BUSINESS bus 100 taught by Professor Jones during the Spring '10 term at Thomas Edison State.

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Chapter01 (1) - Systems Analysis & Design 7th Edition...

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