《软件工程》课程教学资源（PPT课件讲稿）第2章 可行性研究

《软件工程》课程教学资源（图示）系统流程图的基本符号

《软件工程》课程教学资源（图示）判定表举例

《软件工程》课程教学资源（图示）判定树举例

Is there a problem? Why Hard? Syllabus EXamples AAS(FAA Advanced Automation System) FBI CIC IRS Modernization Program

Evolutionary Model Prototyping- \Do it twice to assess feasibility to verify requirements May only be a front end or executable specification Or develop system with less functionality or quality attributes °3 approaches:

Abstract Model Specifications Build an abstract model of required software behavior using mathematically defined(perhaps using axioms )types(e. g sets, relations) Define operations by showing effects of that operation on the model Specification includes Model

清华大学：《软件工程》课程教学资源（PPT讲义）“写”硕士论文

Outline: Software Design Goals History of software design ideas Design principles Design methods Life belt or leg iron?(Budgen)

Formal design Reviews Associated with each of documentation phases Evaluate with respect to Customer requirements Prescribed standards and practices Contractual requirements