Towards efficient and scalable mediation: the AURORA approach

We develop a 2-tier, plug-and-play mediation model for accessing a large number of heterogeneous data sources. This model defines a divide-and-conquer approach towards information integration. It is more suitable for applications such as electronic commerce than existing models. We also develop algebras that manipulate heterogeneous data, the mediation enabling algebras, that provide new techniques for efficient query processing in large-scale middleware. This paper presents the mediation model, architecture and techniques studied in the AURORA project.