Supporting general queries in an object management system

This paper presents the query interface EQL of the object management system InORM, which is based on a relation-object model. We describe the requirements and design objectives of an interface of an object management system in an integrated software factory and then review the facilities and main features of the interface EQL. The EQL has demonstrated that a useful, general purpose interface could be built for an object management system, on which a high-level integration of tools can be reached. The paper also contains a comparison with other object management systems.