A Multimodal Biometric System Based upon the Active Database Paradigm

Today, on many occasions and in many different places, one must be authorised in order to use certain services or applications or to access protected data. A user (person) can be authorised in three differant ways or combinations of ways: it is either information that user knows, something that the user possess or a measurement of some physical or psychological characterstics unique to that user. This paper describes using of complex events in active databases for authorisation purpose