A set of mapping rules E/R and relational schema database towards an ontology

In this paper, we propose a set of mapping rules between the conceptual model ER and the corresponding relational database schema towards ontology. The rules that we propose are divided into two categories, those who transform the ER schema and others transform the relational database schema, the two complement each other to build an ontology representing a new view of reality perceived. The purpose of this work is to provide users with conventional systems, the convenience of migrating to an ontological approach without loss of information with an opportunity to enrich their systems, while retaining the principle of running the old system. More migration, our application has the potential to create new information systems based on an ontology without the user is connoisseur of philosophy ontological, while giving him the impression that works in an ER environment.