Biometric fingerprint time and attendance systems use the fingerprints of employees to verify who is actually clocking in and clocking out of work each day.

The system scans the finger of the employee, coordinates are determined and then the system maps the endpoints and intersections of the fingerprint.

Fingerprint technique is also a part of physiological biometric. As we know that every human being's fingerprints are different and unique from each other.

So we can use this technique for biometric attendance system works. The accuracy rate of fingerprint scanning is very high and it is cheap technology. 

Actually, a fingerprint scanner never saves images of a finger only a series of binary codes for verification purposes. No one can change the algorithm into an image so it is totally impossible to duplicate your finger prints so no need to worry about it. Secondly, the biometric attendance system determines whether the pattern of ridges and valleys in this image matches the pattern of ridges and valleys in pre-scanned images.

So now the fingerprint scanner is operational and you can easily manage employee’s attendance and every aspect related to time.