Chapter12 - Discovering Computers 2009 Chapter 12...

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Discovering Computers 2009 Chapter 12 Information System
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Chapter 12 Objectives Next List the phases in the system development cycle Identify the guidelines for system development Discuss the importance of project management, feasibility assessment, documentation, and data and information gathering techniques Explain the activities performed in the planning phase Discuss the purpose of the activities performed in the analysis phase Describe the various tools used in process modeling Describe the various tools used in object modeling Explain the activities performed in the design phase Recognize the develop programs activity is part of the system development cycle Discuss the activities performed in the implementation phase Discuss the purpose of the activities performed in the operation, support, and security phase
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What is the System Development What is an information system (IS) ? p. 620 Next Hardware, software, data, people, and procedures that work together to produce quality information System —Set of components that interact to achieve common goal Businesses use many types of systems
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The System Development Life Cycle What are the phases of the system development cycle ? p. 620 - 621 Fig. 12-1 Next Phase 1. Planning Phase 2. Analysis Phase 3. Design Phase 4. Implementation Phase 5. Operating, Support, and Security § Review project requests § Prioritize project requests § Allocate resources § Form project development team § Conduct preliminary investigation § Perform detailed analysis activities: Study current system Determine user requirements Recommend solution § Acquire hardware and software, if necessary § Develop details of system § Develop programs, if necessary § Install and test new system § Train users § Convert to new system § Perform maintenance activities § Monitor system performance § Assess system security
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Arrange tasks into phases (groups of activities) What is the System Development What are guidelines for system development? p. 621 - 622 Next Involve users (anyone for whom system is being built) Develop clearly defined standards (procedures company expects employees to follow)
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What is the System Development Who participates in the system development life cycle? p. 622 Fig. 12-2 Next
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What is the System Development What is a systems analyst ? p. 622 - 623 Next Responsible for designing and developing information system Liaison between users and IT professionals
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What is the System Development What is the project team ? p. 623 Next Consists of users, systems analyst, and other IT professionals Formed to work on project from beginning to end Project leader —one member of the team who manages and controls project budget and schedule
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What is the System Development What is project management ? p. 623
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Chapter12 - Discovering Computers 2009 Chapter 12...

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