Which type of testing seeks to verify that a product meets its specifications?

Verification testing is specifically aimed at ensuring that a product meets its specified requirements and standards. This type of testing focuses on evaluating whether the system complies with the defined specifications during the development process. It typically involves reviews, inspections, and tests that measure compliance with the requirements set out for the product.

While functional testing can check that an application behaves as expected based on defined functionalities, it is broader and may not strictly verify compliance with original specifications. Black-box testing is more about testing the outputs based on inputs without concern for the internal workings, making it less focused on specifications. Stress testing, on the other hand, assesses how a system performs under extreme conditions and does not directly correlate with the verification of meeting specified requirements. Therefore, verification testing is the most suitable choice for confirming that a product meets its specifications.