On Using Simplification and Correction Tables for Integrity Maintenance in Integrated Databases

When a database is defined as views over autonomous sources, inconsistencies with respect to global integrity constraints are to be expected. This paper investigates the possibility of using simplification techniques for integrity constraints in order to maintain, in an incremental way, a correction...

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Bibliographic Details
Main Authors: Christiansen, H., Martinenghi, D.
Format: Conference Proceeding
Language:English
Subjects:
Computer science
Expert systems
Performance evaluation
Runtime
Testing
Online Access:Request full text
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Summary:When a database is defined as views over autonomous sources, inconsistencies with respect to global integrity constraints are to be expected. This paper investigates the possibility of using simplification techniques for integrity constraints in order to maintain, in an incremental way, a correction table of virtual updates which, if executed, would restore consistency; access can be made through auxiliary views that take the table into account. The approach employs assumptions about local source consistency as well as cross-source constraints whenever possible
ISSN:1529-4188
2378-3915
DOI:10.1109/DEXA.2006.103