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3D_XML: A Three-Dimensional XML-Based Model

  • Khadija Ali
  • Jaroslav Pokorný
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4910)

Abstract

Much research work has recently focused on the problem of representing historical information in XML. In this paper, we describe an ongoing work to represent XML changes. Our model is a three-dimensional XML-based model (3D_XML in short) for representing and querying histories of XML documents. The proposed model incorporates three time dimensions, valid time, transaction time, and efficacy time without extending the syntax of XML. We use XQuery to express complex temporal queries on the evolution of the document contents. We believe that native XML databases (NXDs) present a viable alternative to relational temporal databases when complex time dependent data has to be manipulated and stored. So NXDs will be our choice.

Keywords

XML 3D_XML model transaction time valid time efficacy time XQuery three-dimensional element native XML databases 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Khadija Ali
    • 1
  • Jaroslav Pokorný
    • 2
  1. 1.Faculty of Electrical EngineeringCzech Technical UniversityPrahaCzech Republic
  2. 2.Faculty of Mathematics and PhysicsCharles UniversityPrahaCzech Republic

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