- Single-Factor Authentication
- Fingerprint Recognition
- AFIS
- Non-AFIS
- IRIS Recognition
- Palm Print Recognition
- Face Recognition
- Vein Recognition
- Signature Recognition
- Voice Recognition
- Others
- DNA Recognition
- Keystroke Recognition
- GAIT Recognition
- Otoacoustic Recognition
- Multifactor Authentication
- Smart Card With Biometrics
- Pin With Biometrics
- Multimodal Biometrics
- Two-Factor Biometrics
- Three-Factor Biometrics