Question

Nate is considering the use of biometric access control systems for his company. He's concerned about the crossover error rate (CER), so which of the following processes would most accurately describe the CER?

A) CER is the rate of false rejections only.
B) CER is the rate of false acceptances only.
C) CER is the rate of correct acceptances.
D) CER is the rate of false rejections and false acceptances are equal.

Answer 1

The crossover error rate (CER) is the point where the false rejection rate equals the false acceptance rate in biometric access control systems, which serves as a standard for assessing the system's accuracy.

Step-by-step explanation:

The crossover error rate (CER) in a biometric access control system is described by choice D) CER is the rate at which the rate of false rejections and false acceptances are equal. In other words, it's the point where the likelihood of a security system incorrectly rejecting an authorized user (false rejection) and the likelihood of it incorrectly accepting an unauthorized user (false acceptance) are the same. This balance point serves as a benchmark to evaluate the reliability and accuracy of biometric systems, with a lower CER indicating a more precise system.