SDLC - V MODEL

V-Model also known  as a Verification and Validation Model 

- V model Suitable for complex and long term  projects.

- It used when client give number of requirements. 

- This model is used when customer needs high quality       product.

- In this testing starts from the requirement stage.

Verification: It involves a static analysis method (review) done without executing code. 

It is the process of evaluation of the product development process to find whether specified requirements meet.

Validation:  It includes dynamic analysis method (functional, non-functional), testing is done by executing code. 

Validation is the process to check  the software after the completion of the development process the software is meets customer requirements or not.

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