What is verification and validation in software testing?

What is verification and validation in software testing?

-Verification involves in reviews and meetings for evaluating document plans, code, requirements and specifications.

-Verification is done with

1. List of issues.
2. Checklists.
3. Walkthroughs.
4. Inspection meetings.

-Validation involves actual testing.

-Validation takes place after verifications are completed.

-Every aspect of verification is thoroughly tested in validation.