A Global Object Model for Accommodating Instance Heterogeneities

  • Ee-Peng Lim
  • Roger H. L. Chiang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1507)


To completely address database integration problems in the context of multidatabase [10] and data warehousing systems, one has to examine various integration and query requirements. Due to various reasons such as poor data quality in local databases, ongoing local database updates, and instance heterogeneities, some instance differences have to be accommodated by the integrated databases. We have therefore proposed a new object-oriented global data model, called OO RA , that can accommodate attribute and relationship instance heterogeneities in the integrated database. In addition, the OO RA model has been designed to allow database integrators and end users to query both the local and resolved instance values using the same query language.


Resolution Function Global Schema Local Database Global Object Database Integration 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Ee-Peng Lim
    • 1
  • Roger H. L. Chiang
    • 2
  1. 1.Centre for Advanced Information Systems, School of Applied ScienceNanyang Technological UniversitySingaporeSINGAPORE
  2. 2.Information Management Research Centre, Nanyang Business SchoolNanyang Technological UniversitySingaporeSINGAPORE

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