Development of canonical information models for integrated information systems

The problem of unification of heterogeneous models of information resources representation including databases, ontologies, services, and processes for development of distributed information systems using heterogeneous information resources is considered. Special attention is drawn to the verifiable methods of information model mapping and synthesis of extensible canonical information models. An architecture of InformationModel Unifier as well as an example of mapping of specific information model into canonical one are presented. A comparison of proposed methods with known approaches is provided.