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© Transition Support  Last Edit 23/05/2018 17:40:52 

What’s the difference between Verification and Validation?

Verification is the act of establishing the truth or correctness of a fact, theory, statement or condition. ‘Is it what it claims to be?’ ‘Does it meet the specification for which it has been produced?’ Validation is a process for establishing whether an entity will fulfil the purpose for which it has been selected or designed. ‘Will it perform the function for which it is required regardless of it meeting some pre-defined requirements? Validation has to do with the subject in question being the right subject, whereas verification has to do with the subject being right. One would validate a design once and verify that all product or service of that design conforms with that design. This relationship is illustrated in the figure below.

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ISO 9001