Um sistema baseado em conhecimento para integração de esquemas de banco de dados.

Abstract

This work presents a Knowledge based system to integrate database schemas. The system incorporates the main aspects of the most significant methodology to integrate the schemas. It's an evolutionary and flexible system once it's possible to include new rules to its knowledge-base extracted from new proposed methodologies or from the users experience with database integration. The system knowledge base uses production rules to represents its knowledge over the schema integration. It also uses frames and logical representation to model structural facts, constituting a hybrid system that uses the advantages of these three forms of knowledge representation. It uses a graphical interface to manipulate the schemas, offering explanation of the decisions taken and questions asked by the system. That offers training to the least experienced users.