Biometrics is the science and technology of measuring and analyzing biological data. In information technology, biometrics refers to technologies that measure and analyze human body characteristics, such as fingerprints, eye retinas and irises, voice patterns, facial patterns and hand measurements, for authentication purposes.
Biometric devices, such as fingerscanners, consist of:
A reader or scanning device
Software that converts the scanned information into digital form and compares match points
A database that stores the biometric data for comparison