In comparison with Rational Software Corp and LogicWorks, and Cayenne Software Inc, New York company Popkin Software & Systems Inc says that its SA Object modelling tool can already do bi-directional translation between class models and relational data models. SA Object can create object data models from relational data models, and create logical data models from object-oriented designs which are converted to a physical data model from which multiple relational database schema can be generated. According to the company, SA Object can also now generate the Object Management Group’s Corba Interface Definition Language from class diagrams. The Interface Definition Language can be compiled into source code to create object applications.