A Uniform Algebraic Characterization of Temporal Functional Dependencies

  • Authors:

  • C. Combi;A. Montanari;R. Rossato

  • Affiliations:

  • Università degli Studi di Verona;Università degli Studi di Udine;Università degli Studi di Verona

  • Venue:
  • TIME '05 Proceedings of the 12th International Symposium on Temporal Representation and Reasoning
  • Year:
  • 2005

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Abstract

In the database literature, different types of temporal functional dependencies (TFDs) have been proposed to constrain the temporal evolution of information. Unfortunately, the lack of a common notation makes it difficult to compare, to integrate, and to possibly extend the various proposals. In this paper, we outline a unifying algebraic framework for TFDs. We first introduce the proposed approach, then we use it to give a uniform account of existing TFDs, and finally we show that it allows one to easily express new meaningful TFDs.