  This paper presents an overview of the main topics related to biometric
security technology, with the main purpose to provide a primer on this subject.
Biometrics can offer greater security and convenience than traditional methods
for people recognition. Even if we do not want to replace a classic method
(password or handheld token) by a biometric one, for sure, we are potential
users of these systems, which will even be mandatory for new passport models.
For this reason, to be familiarized with the possibilities of biometric
security technology is useful.
