Biometrics and the Banking Business (finextra)
Socio-technological challenges pose the biggest barrier to adoption of biometric technology by banks. Banks also need to consider the local culture and level of literacy in the target region. For example, they might like to use fingerprint authentication in lieu of signature at branches located in areas with low literacy. But they might prefer to use iris recognition in other regions.
Every paragraph contains an interesting idea exploring how banks should view the desirability of implementing customer-facing biometrics.