Common Interface for Connecting of Low Profile Biometric Modules

For improving interoperability and gaining in many more benefits, standard interfaces for connecting modules in Information Technology (IT) are a need. Biometrics is not different from other IT fields. In fact in Biometrics those interfaces are needed at different levels: applications, data interchange, processing modules or sensors. Standardization bodies have already published standards related to data interchange and application programming interfaces (API), but some others are still missing. Authors present in this paper a first approach for a definition of a common interface for those biometric related modules to be integrated in small and low cost embedded systems. Definition is done at two different levels, leaving open the final implementation, but outlining such implementation with state of the art communication protocols.