Identification/One-to-many: Sample is compared to all biometric data saved in a system. It seeks to find an identity, rather than verify a claimed one.

Verification/One-to-one: Comparison of sample with previously enrolled template to determine if from same person.

Slaps: Fingerprints taken by simultaneously pressing four fingers of one hand onto a scanner.

False Acceptance Rate: Probability that a system will incorrectly identify an individual or fail to reject an impostor.

False Rejection Rate: Probability that a system will fail to identify a registered user.

Enrolment: Process of collecting a biometric, converting it into a biometric reference and storing it for later comparison.

Liveness detection: Ensures only characteristics from a living person can be stored, read or used.

Multimodal Biometric System: A system that uses two or more biometric characteristics or sensor types.