Performance
Defense
Those operational and support characteristics of the system that allow it to effectively and efficiently perform its assigned mission over time. The support characteristics of the system include both supportability aspects of the design and the support elements necessary for system operation.
Biometrics
A catch-all phrase for describing a measurement of the characteristics, such as accuracy or speed, of a biometric algorithm or system. See also accuracy, crossover error rate, cumulative match characteristics, d-prime, detection error tradeoff, equal error rate, false accept rate, false alarm rate, false match rate, false reject rate, identification rate, operational evaluation, receiver operating characteristics, scenario evaluation, technology evaluation, true accept rate, true reject rate, verification rate.
Telecommunications
A measure of a computer system or subsystem to perform its functions; for example, response time, throughput, number of transactions per second [POSIX.0].