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Data integration by bi-directional schema transformation rules

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2 Author(s)
McBrien, P. ; Dept. of Comput., Imperial Coll., London, UK ; Poulovassilis, A.

We describe a new approach to data integration which subsumes the previous approaches of local as view (LAV) and global as view (GAV). Our method, which we term both as view (BAV), is based on the use of reversible schema transformation sequences. We show how LAV and GAV view definitions can be fully derived from BAV schema transformation sequences, and how BAV transformation sequences may be partially derived from LAV or GAV view definitions. We also show how BAV supports the evolution of both global and local schemas, and we discuss ongoing implementation of the BAV approach within the AutoMed project.

Published in:

Data Engineering, 2003. Proceedings. 19th International Conference on

Date of Conference:

5-8 March 2003