Difference between Verification and Validation

Question

Accepted Answer

Verification is the process of evaluating a system or component to determine whether it meets specified requirements. Validation is the process of evaluating a system or component during or at the end of the development process to determine whether it satisfies the specified requirements.

Verification focuses on the process of reviewing, inspecting, and testing the system or component to ensure that it meets the specified requirements.
Validation focuses on evaluating the system or component against the user's actual needs and expectations.
Verification is done before validation.
Verification ensures that the system is built correctly, while validation ensures that the right system is built.
Examples of verification activities include code reviews, inspections, and unit testing.
Examples of validation activities include system testing, user acceptance testing, and performance testing.

Accepted Answer

Let me clear your confusion on this.Verification deals only verification of documents such as reviews,inspections and walk through where as validation deals with actual execution of application.so if you think about it verification questions 'Are we building system right?' and validation questions 'Are we building right system?'

Difference between Verification and Validation

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