Jan 10

Difference Between Verification and Validation

Difference Between Verification and Validation


  1. Verification is a static process where we verify documents, design, code and program.
  2. Does not involve in code execution.
  3. In verification checking of documentation and files are performed
  4. Inspections, reviews, and walkthroughs are the methods used for verification.
  5. Verificationis done to check whether the software meet the specifications.
  6. Quality assurance team do the verification to ensure that software is as per the specifications.
  7. Verification done first before validation.


  1. Validation is a dynamic process of validating and testing the actual product.
  2. Validation involves in code execution.
  3. The execution is computer based execution of program
  4. Methods used by validation are white box testing, grey box testing, black box testing.
  5. Validation is used to check whether software designed meets the customer expectations and requirements.
  6. 6. Testing team is involved in validation process.
  7. It is usually comes after verification.
  • Methods used for verification and validation are

Methods used for verification

  • Walkthrough
  • Inspection
  • Review

Methods used for Validation

  • Testing
  • End Users

Lots of people interchangeably use verification and validation but both have different meanings.

 is a process which describes whether the outputs are according to inputs or not

 is a process which describes whether the software is accepted by the user or not.

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