SCINTRA: A Model for Quantifying Inconsistencies in Grid-Organized Sensor Database Systems

  • Lutz Schlesinger
  • Wolfgang Lehner
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2790)

Abstract

Sensor data sets are usually collected in a centralized sensor database system or replicated cached in a distributed system to speed up query evaluation. However, a high data refresh rate disallows the usage of traditional replicated approaches with its strong consistency property. Instead we propose a combination of grid computing technology with sensor database systems. Each node holds cached data of other grid members. Since cached information may become stale fast, the access to outdated data may sometimes be acceptable if the user has knowledge about the degree of inconsistency if unsynchronized data are combined. The contribution of this paper is the presentation and discussion of a model for describing inconsistencies in grid organized sensor database systems.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Lutz Schlesinger
    • 1
  • Wolfgang Lehner
    • 2
  1. 1.Department of Database SystemsUniversity of Erlangen-NurembergErlangenGermany
  2. 2.Dresden University of Technology Database Technology GroupDresdenGermany

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