Capability Based Mediation in TSIMMIS
Chen Li(Stanford University)
Ramana Yerneni(Stanford University)
Vasilis Vassalos(Stanford University)
Hector Garcia-Molina(Stanford University)
Yannis Papakonstantinou (University of California, San Diego)
Jeffrey Ullman(Stanford University)
Murty Valiveti(Stanford University)

Abstract:

Conventional mediators focus their attention on the contents of the sources and their relationship to the integrated views provided to the users. They do not take into account the capabilities of sources to answer queries. This may lead them to generate plans involving source queries that cannot be answered by the sources. In the TSIMMIS system, we have developed a source capability sensitive plan generation module that constructs feasible plans for user queries in the presence of limited source capabilities.