A Comparison of the Business Object Notation and the Unified Modeling Language

Seamlessness, reversibility, and software contracting have been proposed as important techniques to be supported by object-oriented methods. These techniques are used to provide a framework for the comparison of two modeling languages, the Business Object Notation (BON) and the Unified Modeling Language (UML). Elements of the UML and its constraint language that do not support these techniques are discussed. Suggestions for further improvements to both BON and UML are described.