适用于项目事先不能完整定义产品所有需求、计划多期开发的软件生命周期模型是（ ）。
- A.快速原型开发
- B.快速创新开发
- C.瀑布模型
- D.迭代模型
正确答案及解析
正确答案
解析
一般把信息系统项目的生命期周期划分为启动、计划、实施和收尾等4个典型的阶段，监控作为过程贯穿于整个生命周期，而信息系统作为项目的产品也可按技术工作划分产品的生命周期，两个生命周期按时间的先后，以过程的方式相互穿插在一起。瀑布模型、迭代模型和快速原型开发是典型的三个产品生命周期模型。对需求清晰、在项目初期就可以明确所有需求、不需要二次开发的项目而言，瀑布模型适合用来作产品的生命周期模型。对于事先不能完整定义产品所有需求、计划多期开发的项目来说，迭代模型适合用来作产品的生命周期模型。对于需要很快给客户/用户演示产品原型的项目，快速原型开发适用于作产品的生命周期模型。
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