Chap 4 - Systems Analysis and Design 8th Edition Chapter 4...

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Systems Analysis and Design 8th Edition Chapter 4 Requirements Modeling
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Phase Description Systems analysis is the second of five phases in the systems development life cycle (SDLC) Will use requirements modeling, data and process modeling, and object modeling techniques to represent the new system Will consider various development strategies for the new system, and plan for the transition to systems design tasks 2
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Chapter Objectives Describe systems analysis phase activities and the end product of the systems analysis phase Explain joint application development (JAD), rapid application development (RAD), and agile methods Understand how systems analysts use a functional decomposition diagram (FDD) 3
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Chapter Objectives Describe the Unified Modeling Language (UML) and explain use case diagrams and sequence diagrams List and describe system requirements, including outputs, inputs, processes, performance, and controls Explain the concept of scalability 4
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Chapter Objectives Use fact-finding techniques, including interviews, documentation review, observation, questionnaires, sampling, and research Define total cost of ownership (TCO) Conduct a successful interview Develop effective documentation methods to use during systems development 5
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Introduction This chapter describes requirements modeling techniques and team-based methods that systems analysts use to visualize and document new systems The chapter then discusses system requirements and fact-finding techniques, which include interviewing, documentation review, observation, surveys and questionnaires, sampling, and research 6
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Systems Analysis Phase Overview The overall objective of the systems analysis phase is to understand the proposed project, ensure that it will support business requirements, and build a solid foundation for system development You use models and other documentation tools to visualize and describe the proposed system 7
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Systems Analysis Phase Overview Systems Analysis Activities Requirements modeling Outputs Inputs Processes Performance Security 8
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Systems Analysis Phase Overview Systems Analysis Activities Data and process modeling Object Modeling Development Strategies System requirements document 9
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Systems Analysis Phase Overview Systems Analysis Skills Analytical skills Interpersonal skills Team-Oriented Methods and Techniques Joint application development (JAD) Rapid application development (RAD) Agile methods 10
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Joint Application Development User Involvement Users have a vital stake in an information system and they should participate fully Successful systems must be user-oriented, and users need to be involved One popular strategy for user involvement is a JAD team approach 11
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Joint Application Development JAD Participants and Roles 12
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This note was uploaded on 01/30/2012 for the course CNIT 180 taught by Professor Victorbarlow during the Spring '12 term at Purdue University-West Lafayette.

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Chap 4 - Systems Analysis and Design 8th Edition Chapter 4...

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