V模型和RAD模型之间的区别

1. V型：
V模型是在软件测试过程中使用的最重要的模型。也称为验证和验证模型。它由已故的保罗·鲁克(Paul Rook)在1980年代引入。 V模型是一个顺序过程，其中下一个阶段仅在当前阶段完成之后才开始。在此模型中，台阶在向上弯曲时不会线性移动。

2. RAD型号：
RAD模型是指快速应用程序开发，它是增量模型的类型。组件或功能是并行开发的，它可以处理小型项目以及中型项目。在此模型中，可以在任何阶段进行任何更改。由于人数较少，因此生产率很高。

V模型和RAD模型之间的区别：

S.No.	V MODEL	RAD MODEL
1.	V model is software development model but development and testing are not concurrent.	Rad model is a software development model where by the components or functions are developed in parallel as if they were mini projects.
2.	In this user involvement is also only in beginning.	In this user Involvement is only at the beginning.
3.	Flexibility of V-model is Little flexible.	Flexibility to change in rad model is Easy.
4.	Cost of V-model is expensive.	Cost of rad model is also Low.
5.	In V-model testing activities start with the first stage.	Testing is done in rad model after completion of coding.
6.	Guarantee of success through V-model is high.	Guarantee of success through RAD model is low.
7.	It is not iterative.	It is iterative.