Have you worked with biometric authentication processes?

Yes, I have worked with biometric authentication processes. This usually includes the following steps:

1. Data collection — for example, fingerprint, face recognition, or iris scan.
2. Data preprocessing — cleaning and normalization to improve recognition quality.
3. Matching — comparing current data with reference templates in the database.
4. Decision making — based on threshold values, determining whether the biometric matches the registered one.

In testing, it is important to verify data processing accuracy, error resilience, security of biometric template storage, and compliance with confidentiality requirements. Failure scenarios are also tested, such as poor scan quality or spoofing attempts.