Verified
Verification and Validation are independent procedures that are used together for checking that a product, service, or system meets requirements and specifications and that it fulfills its intended purpose. These are critical components of a quality management system such as ISO 9000. The words "verification" and "validation" are sometimes preceded with "Independent" (or IV&V), indicating that the verification and validation is to be performed by a disinterested third party.
It is sometimes said that validation can be expressed by the query "Are you building the right thing?" and verification by "Are you building it right?"
In practice, the usage of these terms varies. Sometimes they are even used interchangeably.
The PMBOK guide, an IEEE standard, defines them as follows in its 4th edition:
- "Validation. The assurance that a product, service, or system meets the needs of the customer and other identified stakeholders. It often involves acceptance and suitability with external customers. Contrast with verification."
- "Verification. The evaluation of whether or not a product, service, or system complies with a regulation, requirement, specification, or imposed condition. It is often an internal process. Contrast with validation."
Read more about Verified: Overview, Activities, Categories of Verification and Validation, Aspects of Validation, Industry References, See Also, Further Reading, External Links
Famous quotes containing the word verified:
“In the course of a life devoted less to living than to reading, I have verified many times that literary intentions and theories are nothing more than stimuli and that the final work usually ignores or even contradicts them.”
—Jorge Luis Borges (1899–1986)
“Essential truth, the truth of the intellectualists, the truth with no one thinking it, is like the coat that fits tho no one has ever tried it on, like the music that no ear has listened to. It is less real, not more real, than the verified article; and to attribute a superior degree of glory to it seems little more than a piece of perverse abstraction-worship.”
—William James (1842–1910)
“Don Pedro. Officers, what offence have these men done?
Dogberry. Marry, sir, they have committed false report; moreover they have spoken untruths; secondarily, they are slanders; sixth and lastly, they have belied a lady; thirdly, they have verified unjust things; and, to conclude, they are lying knaves.”
—William Shakespeare (1564–1616)