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Verification vs Validation: What’s the Real Difference in Software Testing?

Started by sophielane, Feb 12, 2026, 12:52 PM

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sophielane

Feb 12, 2026, 12:52 PM
Understanding the distinction between verification vs validation is key to ensuring software quality. Both are essential, but they focus on different aspects of the development process.

Verification checks whether the product is being built correctly. It ensures that the software meets design specifications and requirements. Think of it as a review of documents, code, and design before or during development. Examples include code reviews, walkthroughs, and static analysis.

Validation checks whether the right product is being built. It ensures that the software meets the end-user needs and behaves as expected in real-world scenarios. This is typically done through testing functional behavior, system testing, or user acceptance testing (UAT).

Key points to remember:

Verification is process-oriented, while validation is product-oriented.

Verification answers "Are we building the product right?"

Validation answers "Are we building the right product?"

By combining both verification and validation, teams can catch defects early, ensure alignment with requirements, and deliver software that is both correct and useful to users.
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