Tools to Enable Interoperation of Heterogeneous Databases

3. Technology We demonstrate a prototype toolkit called ITSE (Integrated Translation Support Environment), for interoperation and migration of heterogeneous database systems. Semantic Metamodel Major datamodels (network, relational, object-oriented) are represented in the metamodel as sets of logic predicates alon,g with mapping rules to establish equivalences between expressions in different models. Expressions in supported database languages are mapped into this canonical form before being processed further. 1. Objectives The main objective of ITSE is to enable transparency in heterogeneous database environments. Therefore, tools have been developed to support flexible configuration of databases and the wrapping or migrating of legacy systems in intranets. The tools themselves are aimed at MDBMS administrators and MIS analysts. These users can tailor the toolkit’s operation so that end users are shielded from the underlying heterogeneity of their information system.