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Verification vs. Validation: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on December 25, 2023
Verification is the process of checking whether a product meets specified requirements, while validation ensures the product meets the user's needs and intended uses.
Verification vs. Validation

Key Differences

Verification involves checking if a product, system, or component conforms to a set of predefined requirements or specifications. Validation, on the other hand, is the process of ensuring that the product fulfills its intended purpose and meets the end user's needs.
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Nov 21, 2023
Verification is often seen as an internal process, focusing on consistency, accuracy, and completeness of certain specifications. Validation is external, concentrating on the suitability and effectiveness of the product for its intended use.
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Nov 21, 2023
In verification, the question asked is, "Are we building the product right?" It's about adhering to standards and procedures during development. Validation asks, "Are we building the right product?" focusing on whether the final product meets user needs and expectations.
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The methods used in verification can include reviews, inspections, and tests that are based on the product’s design and development. Validation typically involves actual testing and usage scenarios to ensure the product’s relevance and effectiveness in real-world conditions.
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In software development, verification might involve code reviews and static analysis to ensure the code aligns with design documents. Validation in this context would include user acceptance testing to confirm the software meets user requirements and expectations.
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Comparison Chart

Focus

Conformity to requirements/specifications
Fulfillment of user needs and intended use
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Nature

Internal process, checking accuracy and completeness
External process, assessing suitability and effectiveness
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Fundamental Question

"Are we building the product right?"
"Are we building the right product?"
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Methods

Reviews, inspections, specific tests
Usage scenarios, real-world application testing
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Example in Software Development

Code reviews, static analysis
User acceptance testing
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Verification and Validation Definitions

Verification

Verification in software involves ensuring code adheres to its design documentation.
The development team performed code verification to ensure it matched the design.
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Nov 16, 2023

Validation

Validation is the process of ensuring a product meets the user's needs and intended uses.
User testing was part of the validation process for the new mobile app.
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Nov 16, 2023

Verification

Verification is the process of confirming that a product meets specified requirements.
The engineering team conducted a verification of the new software against the design specifications.
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Nov 16, 2023

Validation

Validation involves evaluating a system’s effectiveness in a real-world scenario.
The validation of the water filtration system was done in a rural setting.
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Verification

Verification entails the assessment of whether a system complies with certain standards.
Verification of the building’s electrical system ensured it met safety standards.
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Validation

Validation is the confirmation that a product performs as intended for the end user.
Validation of the software included feedback from end users about its functionality.
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Verification

Verification is the confirmation through evidence that specified requirements have been fulfilled.
The verification process confirmed the product met all regulatory requirements.
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Validation

Validation in software development includes user acceptance testing.
The final phase of the project was validation through user acceptance testing.
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Verification

Verification is the act of checking the accuracy and completeness of a document or system.
Document verification was completed before the project was approved.
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Validation

Validation is the assurance that a system fulfills its intended purpose.
The medical device underwent validation to ensure it worked effectively in clinical settings.
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Verification

The act of verifying or the state of being verified.
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Oct 19, 2023

Validation

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

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

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

The act of verifying.
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Validation

The act of validating something.
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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.
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Verification

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

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

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

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

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

The act of giving validity.
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Verification

The act of verifying, or the state of being verified; confirmation; authentication.
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Oct 19, 2023

Validation

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

Confirmation by evidence.
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Validation

The cognitive process of establishing a valid proof
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Verification

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

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

What is validation?

Validation is ensuring a product fulfills its intended purpose and meets user needs.
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Nov 21, 2023

How do verification and validation differ in purpose?

Verification checks for conformity to requirements, while validation ensures suitability for user needs.
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Nov 21, 2023

When is validation performed?

Validation is usually done post-development, before the final release of the product.
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In which phase of development is verification done?

Verification is typically conducted throughout the development phase.
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Is verification more technical than validation?

Verification is generally more focused on technical aspects and specifications.
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What is verification?

Verification is the process of confirming that a product meets specific requirements or standards.
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Nov 21, 2023

Can you have validation without verification?

While possible, it's not advisable as both processes serve important but different roles.
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Nov 21, 2023

Can a product pass verification but fail validation?

Yes, a product might meet all technical specifications but still fail to meet user needs.
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Nov 21, 2023

Are verification and validation necessary in software development?

Both are crucial to ensure the software is both correct and useful to users.
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Nov 21, 2023

What methods are common in validation?

Validation commonly uses methods like beta testing, user surveys, and field trials.
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What is an example of validation in product development?

Consumer testing to ensure a product meets the market's needs is an example of validation.
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Nov 21, 2023

Is user satisfaction a part of validation?

Yes, user satisfaction is a key aspect of validation.
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Does validation involve user feedback?

Yes, validation often includes user feedback and real-world testing.
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Who performs verification?

Verification is typically performed by the development team or quality assurance professionals.
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What tools are used for verification?

Verification might use tools like static analysis software, checklists, and test scripts.
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Who is involved in validation?

Validation often involves end-users, stakeholders, and quality assurance teams.
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Nov 21, 2023

Why is verification important?

Verification ensures that a product technically fulfills its designed purpose.
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Nov 21, 2023

Why is validation important?

Validation confirms that the product is useful and meets user expectations.
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What is an example of verification in manufacturing?

Checking a product against its design blueprints is an example of verification in manufacturing.
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Nov 21, 2023

Does verification guarantee product success?

Verification alone doesn’t guarantee success; it must be paired with validation.
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Nov 21, 2023

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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