By Verification and Validation?

Validation is the process of checking whether the specification captures the customer's requirements, while verification is the process of checking that the software meets specifications. Verification includes all the activities associated with the producing high quality software.

What do u mean by validation and verification?

Verification is the process of checking that a software achieves its goal without any bugs. It is the process to ensure whether the product that is developed is right or not. ... Validation is the process of checking whether the software product is up to the mark or in other words product has high level requirements.

What is the difference between verification and validation?

Verification process includes checking of documents, design, code and program whereas Validation process includes testing and validation of the actual product. ... Verification checks whether the software confirms a specification whereas Validation checks whether the software meets the requirements and expectations.