Biometrics refers to the way people use computers and optics, acoustics, high-tech tools such as biosensors and biostatistics combine and use the body's inherent physiological features (such as veins, faces, irises, fingerprints, etc.) and behavioral features (such as handwriting, voice, gait, etc.) to determine the identity of the individual.
Based on the above definition, a company introducing a fingerprint punch card for employees to report for duty is most likely to use biometrics.