Semantic Integrity Constraints in Federated Database Schemata

Federated database systems provide a uniform and transparent interface to distributed and heterogeneous databases. This interface consists of a federated database schema which is the result of a schema integration process. The federated database schema should correctly reflect the semantics of the component database schemata of which it is composed. Since the semantics of a database schema is also determined by a set of semantic integrity constraints, a correct schema integration has to dea...