What is difference between verification and validation

Question

Accepted Answer

Verification ensures the product is built right, while validation ensures the right product is built.

Verification focuses on whether the software meets the specified requirements.
Validation focuses on whether the software meets the customer's needs and expectations.
Verification is done through reviews, inspections, walkthroughs, and static analysis.
Validation is done through testing, user feedback, and acceptance criteria.
Example: Verification would involve checking if a login screen has all required fields, while validation would involve testing if the login screen functions correctly and is user-friendly.

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