In software development, knowing the difference between verification vs validation is critical for maintaining quality. Both processes aim to detect defects early, but they operate at different levels and stages of the project.
Verification is a process-focused activity that ensures the product is being built according to the specified requirements. It answers the question: Are we building the product right? Activities typically include:
Reviewing requirement and design documents
Code inspections and walkthroughs
Static analysis and compliance checks
Validation is a product-focused activity that confirms the software meets user needs and expectations. It answers: Are we building the right product? Activities usually include:
Functional and system testing
User acceptance testing (UAT)
Testing in real-world scenarios
Both verification and validation are essential. Verification prevents errors early in development, while validation ensures the software solves the intended problem. Together, they provide a comprehensive approach to quality assurance.
