The science of measurement and analysis of biological data is known as biometrics. The biological data mainly refers to certain unique characteristics of the human body. These characteristics include fingerprints, eye retinas and irises, DNA, facial patterns, voice patterns, hand measurements etc. They serve as excellent parameters for biometrics due to the fact that they are generally not the same for two different individuals and thereby help in the process of identification, verification, authentication and access control.
Biometrics has found application in every walk of life today. In everyday life it is mostly used as a measure of access control, known as biometric access control, which is used as part of biometric security to restrict access to specific regions as well as to safeguard valuables. More