An Architecture for Heterogenous Federated Mediators

This paper describes a heterogeneous federated mediators architecture to support querying and cooperation activities. In a lot of situations, the data and program were recorded by different persons, at different times, in different languages, on different fields. All the difference makes the information systems’ heterogeneity. The mediation services are expected to play an important role in helping automated processes to access heterogeneous information. They are not Yes/No answers from the mediator, when no single object meets the search criteria, they may be cooperative answers to make a composite answer. In this paper we introduce a mediator-based logical architecture and its implementation.