QStream: deterministic querying of data streams

  • Authors:
  • Sven Schmidt;Henrike Berthold;Wolfgang Lehner

  • Affiliations:
  • Dresden University of Technology, Database Technology Group;Dresden University of Technology, Database Technology Group;Dresden University of Technology, Database Technology Group

  • Venue:
  • VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
  • Year:
  • 2004

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Abstract

Current developments in processing data streams are based on the best-effort principle and therefore not adequate for many application areas. When sensor data is gathered by interface hardware and is used for triggering data-dependent actions, the data has to be queried and processed not only in an efficient but also in a deterministic way. Our streaming system prototype embodies novel data processing techniques. It is based on an operator component model and runs on top of a real-time capable environment. This enables us to provide real Quality-of-Service for data stream queries.