How does biometric fingerprint technology work?
Sensors capture an image of the fingerprint and use a series of algorithms to create a unique user number, which is stored in the teminal and in the central database. There are actually two types of fingerprint systems: verification and identification. In a verification fingerprint unit, an employee enters his/her employee ID number by keypad or badge and places a finger on the fingerprint unit. The system then compares the fingerprint being scanned to the employee’s previously enrolled fingerprint. If the fingerprints match, the employee’s identity is verified and the transaction is accepted. In an identification fingerprint unit, the employee simply places a finger on the scanner. The system compares the fingerprint being scanned to all templates stored in the database, searching for a match. If a match is found, the employee is positively identified and the transaction is accepted.
