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Biometric Technology Application Manual Section 2 19
are not viable. Systems that are uncomfortable to the
user, appear threatening, require contact that raises
hygenic issues, or are basically non-intuitive in practical
use will probably not find wide acceptance.
Key Elements of Biometric Systems 15
There are four universal elements to all biometric systems:
1.
2.
3.
4.
Enrollment
Biometric Template (or Reference)
Comparison and Comparison Errors
Networking
Typically, biometric systems or devices have three primary
components:
1.
2.
3.
Automated mechanism that scans or photographs
(video or still) and captures a digital or analog image
of a living biometric characteristic.
Another mechanism that handles compression, storage,
processing, and comparison of the captured data
with the stored data (enrollment template).
Interface with the application system.
15 Adapted from Biometrics: A Technical Primer. Elaine Newton and John
Woodward. Army Biometric Applications: Identifying and Addressing Sociocultural
Concerns. 2001. www.rand.org Santa Monica, CA: RAND
Corporation. Used with permission.
Version 2 – Summer 2008