Exploiting the advantages of object oriented programming in the implementation of a database design environment

We describe the implementation of a database design environment (Swift) that incorporates several novel features. Swift's data modelling approach is derived from viewpoint-oriented methods. Swift is implemented in Java, which allows us to easily construct a client-server based environment. The repository is implemented using PostgreSQL, which allows us to store the actual application code in the database. The combination of Java and PostgreSQL reduces the impedance mismatch between the application and the repository.