Application examples of the object-oriented based translation approach to fragments of the UML, ER and relational metaschemas

Abstract

Schema translation is an important problem in the fields of databases and information systems engineering. In current practice, schemas translation problems have been often tackled by means of ad-hoc solutions. However, ad-hoc solutions are very heavy and hard to maintain, and there is still a compelling need for a general solution able to cope, in a uniform way, the large diversity of the various formats and type of information available. The schema translation problem can be simply stated as follows: Given a (source) metaschema MS1, a (source) schema S1 (instance of MS1) and a (target) metaschema MS2, obtain a schema S2 instance of MS2 that suitably corresponds to S1. This report illustrates three examples of the application of the object-oriented based translation approach to fragments of different instances of MOF metaschemas.Postprint (published version