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Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach

Peter McBrien, Alexandra Poulovassilis

Conference or Workshop Paper
The Fourteenth International Conference on Advanced Information Systems Engineering, Toronto, Canada
May, 2002
Lecture Notes in Computer Science
Volume 2348
Springer-Verlag, LNCS
ISBN 3-540-43738-X
ISSN 0302-9743

This paper presents a new approach to schema evolution, which combines the activities of schema integration and schema evolution into one framework. In previous work we have developed a general framework to support schema transformation and integration in heterogeneous database architectures. Here we show how this framework also readily supports evolution of source schemas, allowing the global schema and the query translation pathways to be easily repaired, as opposed to having to be regenerated, after changes to source schemas.

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