What is the difference between validation and verification in software testing?

Validation and verification are two crucial processes in software testing that aim to ensure the quality and reliability of a software product. While validation and verification may seem similar, there are distinct differences between the two:

• Validation: Validation is the process of evaluating the software to ensure that it meets the requirements and expectations of the end users. It focuses on whether the software is doing the right thing and is meeting the intended purpose. Validation answers the question, "Are we building the right product?"
• Verification: Verification, on the other hand, is the process of checking that the software conforms to its specified requirements and standards. It involves reviewing documents, plans, code, and specifications to ensure that the software is being developed correctly. Verification answers the question, "Are we building the product right?"

Both validation and verification are essential for ensuring a high-quality software product that meets the needs and expectations of its users. By effectively implementing both processes, quality assurance engineers can minimize errors, improve efficiency, and enhance overall software quality.