Verification and Validation (V&V) is the process of checking that a software system meets SPECIFICATIONS and that it fulfills its intended purpose. It is normally part of the software testing process of a project.

According to the Capability MATURITY Model (CMMI-SW v1.1),

Verification: The process of evaluating software to determine WHETHER the products of a given development phase satisfy the conditions imposed at the start of that phase.

Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies SPECIFIED requirements.

Verification shows conformance with specification; validation shows that the program meets the customer’s needs.

Verification and Validation (V&V) is the process of checking that a software system meets specifications and that it fulfills its intended purpose. It is normally part of the software testing process of a project.

According to the Capability Maturity Model (CMMI-SW v1.1),

Verification: The process of evaluating software to determine whether the products of a given development phase satisfy the conditions imposed at the start of that phase.

Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies specified requirements.

Verification shows conformance with specification; validation shows that the program meets the customer’s needs.