Database schema method for automatic semantic errors resolving during information systems integration

At present time there are many enterprises that prefer to integrate out-of-the-box systems (with integration application) instead of developing new enterprise system special for them. Integration applications provide functionality to synchronize data between databases of out-of-the-box systems. However, there are problems during integration and we propose a method for these problems automatically solving. For example, one of the problem is to determine same concepts and attributes in the integrated databases. In this article, we present a method based on the semantic web approaches: OWL and its mathematical base - Description Logics. We present mathematical model of the database as set of the OWL concepts, roles and axioms, which determines rules for database integration consistency. Each concrete database has its own mathematical representation and transformation rules are presented following in the article. Set of such rules is presented as set of functions from database elements to ontology elements.