When should performance verification be conducted?

Performance verification should be conducted during system design and completion because it is essential to ensure that the system operates as intended throughout its lifecycle. This phase allows for the identification of any issues or deficiencies in the system while it is still being implemented, enabling any necessary adjustments to be made before the system goes live.

Conducting performance verification at this stage ensures that all components are working together effectively and that the system meets the specified requirements. It helps to validate the functionality and performance of the AV installation, ensuring that it aligns with the needs established during the design phase. By incorporating performance checks during this period, any potential obstacles can be addressed efficiently, leading to a more successful deployment.

Performing verification only after installation or during user training may lead to discovering problems too late, making corrections more challenging and time-consuming. Waiting until the end of the service life for verification is not practical as the objective is to maintain the system's reliability and performance throughout its use, rather than addressing issues post-implementation.