Biometrics is the technical term for the scientific measurement and analysis of physical and behavioral human characteristics. It refers to metrics related to human characteristics. Biometrics identification is based on physical or behavioral traits such as fingerprints, face recognition, or retina and iris patterns for automatic recognition. Biometric systems provide an essential level of security for tasks that require verifying someone's identity with a high degree of certainty without relying on something the individual carries or remembers.