____________ ____________ is a method of specifying products and materials based more on the ability to satisfy a ____________ _____________ or perform a specific ______________.

The correct answer identifies "Performance Specification" as a method that focuses on the capability of products and materials to meet certain identified criteria or fulfill specific functions. Performance specifications emphasize the outcomes that a system or component must achieve, rather than detailing how those outcomes should be accomplished.

This approach allows for flexibility in the selection of materials and methods, encouraging innovation and allowing manufacturers to propose solutions that best fit the performance criteria provided. In a fire alarm system context, this could involve specifying the required response times of detectors or the sound intensity of alarms without dictating the exact makeup of the devices.

Specifying "Design requirement" aligns well with performance specifications, as it pertains to the necessity for certain characteristics that ensure the system will function correctly in real-world scenarios. Performance-based specifications are particularly valuable in the fire alarm industry because they ensure that the installed systems are not only compliant but also effectively meet the safety needs of the environment they are designed to protect.