SOFTWARE ENGINEERING

Detailed explanation-1: -The V-model is an SDLC model where execution of processes happens in a sequential manner in a V-shape. It is also known as Verification and Validation model. The V-Model is an extension of the waterfall model and is based on the association of a testing phase for each corresponding development stage.

Detailed explanation-2: -In response to the perceived problems with the pure waterfall model, modified waterfall models were introduced, such as “Sashimi (Waterfall with Overlapping Phases), Waterfall with Subprojects, and Waterfall with Risk Reduction".

Detailed explanation-3: -Like in Waterfall-Model each phase must be completed before the next phase begins, V-model actually is a modified version of a Waterfall-Model.

Detailed explanation-4: -It is also considered to be an extended form of Waterfall Model since one step cannot be done without the completion of a previous process first. Each verification process in V-Model SDLC and their parallel testing counterpart.