Which type of test is conducted to verify if a product meets its functional requirements?

The type of test conducted to verify if a product meets its functional requirements is the user acceptance test. This testing phase is critical as it involves real users testing the product to ensure it meets their needs and expectations along with the specified functional requirements.

User acceptance testing occurs after the product has undergone system and integration testing. Its primary goal is to assess whether the end product aligns with the user's needs and requirements described during the initial stages of the product’s development. During this phase, users validate that the product performs its required functions correctly in a real-world context, and they have the opportunity to provide feedback on any discrepancies or areas for improvement.

While system testing, usability testing, and integration testing are essential in the development process, they focus on different aspects of the product. System testing checks the overall functionality and behavior of the application, usability testing assesses how easy and satisfying the product is to use, and integration testing ensures that different modules or systems work together correctly. In summary, user acceptance testing is the stage where verification against functional requirements takes place from the user's perspective.