Rate - (FRR). The probability that a biometric system will fail to identify an enrollee, or verify the legitimate claimed identity of an enrollee. When a system’s FRR is too high, the threshold for the FRR is set too high. Note that FAR and FRR are inversely related. The False Rejection Rate may be estimated as: FRR = NFR (Number of False Rejections) / NEIA (Number of enrollee identification attempts) The same formula can be expressed as: FRR = NFR / NEVA (Number of enrollee verification attempts)

Result of a Biometric Request in the case of a Genuine Attempt provided by a Biometric System which consists in a negative Verification or a wrong Identification of the Applicant. Used in the context of Positive Claim of Identity.

When a biometric system fails to identify an enrollee or fails to verify the legitimate claimed identity of an enrollee.