CBP Biometric Performance Metrics and Testing Flashcards

Which testing scenario evaluates a biometric system using data collected in a controlled lab environment separate from real-world conditions?

Answer: Technology evaluation

Technology evaluations test biometric algorithms using pre-collected datasets in controlled conditions, independent of operational hardware.

What is the primary purpose of a biometric scenario evaluation?

Answer: To simulate real-world conditions using a specific system configuration

Scenario evaluations test complete biometric systems under simulated but realistic conditions to predict operational performance.

What does throughput rate measure in biometric system testing?

Answer: The number of individuals processed per unit of time

Throughput rate measures how many individuals a biometric system can process (enroll or verify) within a defined time period.

In biometric testing, what does 'ground truth' refer to?

Answer: The verified, authoritative identity information used to evaluate system decisions

Ground truth is the known, verified set of correct identities used as the reference standard to measure how accurately a biometric system performs.

What is a 'wolf attack' in biometric security testing?

Answer: An attempt to find biometric samples that falsely match many identities

A wolf attack exploits a biometric system by submitting specially crafted samples designed to match a large number of stored templates, maximizing false acceptances.

Which standard body publishes key biometric testing and performance methodology standards used in CBP certification?

Answer: ISO/IEC JTC1 SC37

ISO/IEC JTC1 SC37 (Subcommittee 37) is the primary international standards body responsible for biometric testing methodology, conformance, and performance standards.