Difference Between Verification & Validation in Tabular Form.

1Verification is used to identify the errors in requirement specificationsValidation is used to find the defects in the implemented
2Verification is the process of evaluating products of a development phase to find out whether they meet the specified requirements.Validation is the process of evaluating software at the end of the development process to determine whether software meets the customer expectations and requirements.
3The objective of Verification is to make sure that the product being develop is as per the requirements and design specifications.The objective of Validation is to make sure that the product actually meet up the user’s requirements, and check whether the specifications were correct in the first place.
4Execution of code is not comes under Verification.Execution of code is comes under Validation.
5Verification is carried out by QA team to check whether implementation software is as per specification document or not.Validation is carried out by testing team.
6Following activities are involved in Verification: Reviews, Meetings and InspectionsFollowing activities are involved in Validation: Testing like black box testing, white box testing, gray box testing etc
7Verification process explains whether the outputs are according to inputs or not.Validation process describes whether the software is accepted by the user or not.
8Verification is carried out before the Validation.Validation activity is carried out just after the Verification.
9Following items are evaluated during Verification: Plans, Requirement Specifications, Design Specifications, Code, Test Cases etc,Following item is evaluated during Validation: Actual product or Software under test.
10It is basically manually checking the of documents and files like requirement specifications etc.It is basically checking of developed program based on the requirement specifications documents & files.
11Cost of errors caught in Verification is less than errors found in Validation.Cost of errors caught in Validation is more than errors found in Verification.
12Are we building the system right?Are we building the right system?
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One thought on “Verification & Validation

  • 16/08/2018 at 11:03 am

    I like the article


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