Because
biometrics can be used in such a variety of
applications, it is very difficult to establish an
all-encompassing definition. The most suitable
definition of biometrics is:
The automated
use of physiological or behavioral characteristics to
determine or verify identity.
To
elaborate on this definition, physiological biometrics
are based on measurements and data derived from direct
measurement of a part of the human body. Fingerprint,
iris recognition, hand geometry, and facial
recognition are
leading physiological biometrics.
Behavioral
characteristics are based on an action taken by a
person. Behavioral biometrics, in turn, are based on
measurements and data derived from an action, and
indirectly measure characteristics of the human body.
Voice verification, keystroke dynamics, and signature
verification are
leading behavioral biometric technologies. One of the
defining characteristics of a behavioral biometric is
the incorporation of time as a metric - the measured
behavior has a beginning, middle and end.
International Biometric Group
For
more information, check out IBG's Biometrics
Market and Industry Report 2006-2010,the
industry's most comprehensive, extensive and
authoritative analysis of biometric technologies,
applications, and global markets. The Report provides
critical market data and real-world guidance to
biometric technology deployers, developers, investors,
and researchers.