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An Unified Dynamic Description Logic Model for Databases: Relational Data, Relational Operations and Queries
Hao, G., Ma, S., Sui, Y. and Lv, J.
The paper presents an unified Description Logic (DL)
model for databases. Describing database models using DLs is a fundamental problem in many areas
because it turns databases to logical systems with
enriched semantics and enhanced reasoning mechanism. A typical relational database model comprises
three components: relational data model, relational
operations, and queries. Therefore, a DL model for
databases should also unify these three components
together. However, most available DL models for
databases only describe one or two components of
database models. After pointing out the two key factors resulting in the absence of such a model, the paper develops an extended dynamic description logic
language DALCP based on PDLC with enriched form
of action modal operators. Based on PALCP , an
unified DL models for databases is presented. It
represents relational data by ALC, represents relational operations by atomic modal operators representation; and represents queries by complex modal
operators. In addition, translation functions are provided to transform arbitrary database systems into
DL systems automatically. Because the model unifies data and operations together, query processing
could be done based on the logical inference mechanism which is very different from other work. |
Cite as: Hao, G., Ma, S., Sui, Y. and Lv, J. (2007). An Unified Dynamic Description Logic Model for Databases: Relational Data, Relational Operations and Queries. In Proc. Tutorials, posters, panels and industrial contributions at the 26th International Conference on Conceptual Modeling - ER 2007 Auckland, New Zealand. CRPIT, 83. Grundy, J., Hartmann, S., Laender, A. H. F., Maciaszek, L. and Roddick, J. F., Eds. ACS. 121-126. |
(from crpit.com)
(local if available)
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