Computing capabilities of mediators

  • Authors:
  • Ramana Yerneni;Chen Li;Hector Garcia-Molina;Jeffrey Ullman

  • Affiliations:
  • Department of Computer Science, Stanford University;Department of Computer Science, Stanford University;Department of Computer Science, Stanford University;Department of Computer Science, Stanford University

  • Venue:
  • SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
  • Year:
  • 1999

Quantified Score

Hi-index 0.01

Visualization

Abstract

Existing data-integration systems based on the mediation architecture employ a variety of mechanisms to describe the query-processing capabilities of sources. However, these systems do not compute the capabilities of the mediators based on the capabilities of the sources they integrate. In this paper, we proposed a framework to capture a rich variety of query-processing capabilities of data sources and mediators. We present algorithms to compute the set of supported queries of a mediator, based on the capability limitations of its sources. Our algorithms take into consideration a variety of query-processing techniques employed by mediators to enhance the set of supported queries.