V Model

V-Model

The V-model is a Software Development Model which can be presumed to be the extension of the Waterfall Model Instead of moving down in a linear way, the process steps are bent upwards after the coding phase, to form the typical V shape. The V-Model demonstrates the relationships between each phase of the development life cycle and its associated phase of testing, or V-Model can represent Level of Testing in Software Development Life Cycle (SDLC). I will explain in the next post.

The V-model can be said to have developed as a result of the evolution of software testing. Various testing techniques were defined and various kinds of testing were clearly separated from each other which led to the waterfall model evolving into the V-model. The tests in the ascending (Validation) hand are derived directly from their design or requirements counterparts in the descending (Verification) hand. The 'V' can also stand for the terms Verification and Validation.
V-Model is more helpful and profitable to companies as it reduces the time for whole development of a new product and can also be used to some complex maintenance projects.