Multimedia federated databases on intranets: Web-enabling IRO-DB

  • Georges Gardarin
Invited Lectures (1)
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1308)


Integrating semantically heterogeneous databases requires rich data models to homogenize disparate distributed entities with relationships and to access them through consistent views using high level query languages. In this paper, we first survey the IRO-DB system, which federates object and relational databases around the ODMG data model. Then, we point out some technical issues to extend IRO-DB to support multimedia databases on the Web. We propose to make it evolve towards a three-tiered architecture including local data sources with adapters to export objects, a mediator to integrate the various data sources, and an interactive user interface supported by a Web browser. We show through an example that new heuristics and strategies for distributed query processing and optimization have to be incorporated.

Key words

Interoperable database Federated database Object-oriented database Remote data access Schema integration Multimedia Web Query processing 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Georges Gardarin
    • 1
  1. 1.Laboratoire PRiSM URA CNRS 1525Université de Versailles-St QuentinVersailles CedexFrance

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