Topic: Verification vs Validation in Software Testing

Verification
  • Process of checking “Are we building the product right?”
  • Ensures the software meets requirements, design, and specifications before coding or execution.
  • Focus: Process-oriented.
Examples
  • Reviewing requirement documents.
  • Code reviews.
  • Design walkthroughs.
Validation
  • Process of checking “Are we building the right product?”
  • Ensures the software meets user needs and expectations.
  • Focus: Product-oriented.
Examples
  • System Testing.
  • UAT (User Acceptance Testing).
  • End-to-end testing.
Key Differences
Side-by-side comparison of verification versus validation
Aspect Verification Validation
Question Answered Are we building it right? Are we building the right thing?
Focus Process (reviews, inspections) Product (execution, testing)
Done By QA team, developers Testers, end-users
Techniques Reviews, walkthroughs, static checks Functional testing, UAT, dynamic checks