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Managing Quality Properties in a ROLAP Environment

  • Adriana Marotta
  • Federico Piedrabuena
  • Alberto Abelló
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4001)

Abstract

In this work we propose, for an environment where multidimensional queries are made over multiple Data Marts, techniques for providing the user with quality information about the retrieved data. This meta-information behaves as an added value over the obtained information or as an additional element to take into account during the proposition of the queries. The quality properties considered are freshness, availability and accuracy. We provide a set of formulas that allow estimating or calculating the values of these properties, for the result of any multidimensional operation of a predefined basic set.

Keywords

Measure Attribute Quality Property Relational Algebra Dimension Table Fact Table 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Adriana Marotta
    • 1
  • Federico Piedrabuena
    • 1
  • Alberto Abelló
    • 2
  1. 1.Instituto de ComputaciónUniversidad de la RepúblicaMontevideoUruguay
  2. 2.Universitat Politècnica de CatalunyaBarcelonaEspaña

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