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Verification vs. Validation

Verification and Validation are the terms used for the checking process of a software. Verification is the checking of a product or software at its development phase either it is being developed to meet the required specifications. Validation is the checking of a product or a software at the end of its development process either it is meets the customer's demands and needs. First the verification is performed and then validation is performed.

Key Differences

Verification is carried out at development phase while validation is performed at final stage of software development.
In validation the execution of code is carried but in verification code is not executed.
Aimie Carlson
Oct 12, 2015
Verification is carried out by QA team while validation is carried out by testing team.
Verification is performed before validation is performed.
Verification is the checking specifications as per requirements while validation is the checking of the software either it meets the customer's requirements.
Testing like black box, white box etc. are carried out in validation but nor in verification.
Aimie Carlson
Oct 12, 2015
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Validation relates to the user either the product is accepted by user or not while verification relates to the design and specifications of software.
Inspection is done in verification but not in validation.
Harlon Moss
Oct 12, 2015
Cost of errors detected verification is less than cost of errors detected in validation.
Aimie Carlson
Oct 12, 2015

Verification and Validation Definitions

Verification

The act of verifying or the state of being verified.

Validation

To establish the soundness, accuracy, or legitimacy of
Validate the test results.
Validate a concern.

Verification

A sworn statement attesting to the truth of the facts in a document.
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Validation

To declare or make legally valid
Validate an election.

Verification

A sworn statement attesting that a pleading is true to the best of one's knowledge.

Validation

To mark with an indication of official sanction
The official validated my passport with a stamp.

Verification

The act of verifying.

Validation

The act of validating something.

Verification

The state of being verified.
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Validation

Something, such as a certificate, that validates something; attestation, authentication, confirmation, proof or verification.

Verification

Confirmation; authentication.
The detective needs verification of your whereabouts last night.

Validation

The process whereby others confirm the validity of one's emotions.

Verification

(legal) A formal phrase used in concluding a plea, to denote confirmation by evidence.

Validation

(US) The process of identifying a new prisoner's gang affiliation.

Verification

(mathematics) The operation of testing the equation of a problem, to see whether it truly expresses the conditions of the problem.

Validation

The act of giving validity.

Verification

The act of verifying, or the state of being verified; confirmation; authentication.

Validation

The act of validating; finding or testing the truth of something

Verification

Confirmation by evidence.

Validation

The cognitive process of establishing a valid proof

Verification

Additional proof that something that was believed (some fact or hypothesis or theory) is correct;
Fossils provided further confirmation of the evolutionary theory

Verification

(law) an affidavit attached to a statement confirming the truth of that statement

What is Verification?

Verification is the checking of a product or software at its development phase either it is being developed to meet the required specifications. It involves meetings, reviews and inspections. It is carried by QA team. Plans, specifications, design and codes are evaluated.

What is Validation?

Validation is the checking of a product or a software at the end of its development process either it is meets the customer’s demands and needs. It involves testing of black box, white box, grey box etc. It is carried out by testing team. The actual software developed is evaluated or tested.

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