[法学]9 Software Life Cycle Models amp__ Testing.pdf

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2018-02-18 发布于浙江
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[法学]9 Software Life Cycle Models amp__ Testing.pdf

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[法学]9SoftwareLifeCycleModels

Software Engineering Zhang Shuang zhangs914@163.com Software College Northeastern University Chapter 9 Software Life-Cycle Model Software Life-Cycle Models Testing Software College, Zhang Shuang, Zhangs914@163.com 9.1 Software Life-Cycle Models Life-cycle model, the series of steps through which the product progresses The life-cycle of each product is different: Software size Software type Development environment technique Use the suitable model for each product. Software College, Zhang Shuang, Zhangs914@163.com 9.1 Software Life-Cycle Models Different life-cycle models: Build-and-fix model Waterfall model Rapid prototyping model Incremental model Synchronize-and-stabilize model Fountain model Software College, Zhang Shuang, Zhangs914@163.com 1 Build and Fix Model Problems No specifications No design Totally unsatisfactory Need a life-cycle model “Game plan” Phases Milestones Software College, Zhang Shuang, Zhangs914@163.com 2 Waterfall Model Characterized by Feedback loops Documentation-driven Advantages Documentation Maintenance easier Disadvantages Specification document Widely used before 80s Software College, Zhang Shuang, Zhangs914@163.com 3 Rapid Prototyping Model Linear model “Rapid” Software College, Zhang Shuang, Zhangs914@163.com