Verification v/s Validation in Software testing

Verification v/s Validation in Software testing

Verification	Validation
Verifying process includes checking documents, design, code and program	It is a dynamic mechanism of testing and  validating the actual product
It does not involve executing the code	It always involves executing the code
Verification uses methods like reviews, walkthroughs, inspections and desk- checking etc.	It uses methods like Black Box Testing,White Box Testing and non-functional testing
Whether the software conforms to specification is checked	It checks whether software meets the requirements and expectations of customer
It finds bugs early in the development cycle	It can find bugs that the verification process can not catch
Target is application and software architecture, specification, complete design, high level and data base design etc.	Target is actual product
QA team does verification and make sure that the software is as per the requirement in the SRS document.	With the involvement of testing team validation is executed on software code.
It comes before validation	It comes after verification