You can use the UML 1.4 and 2.0 notation mapping tables to understand the differences in UML notation between Rational Rose® and the Rational® modeling products in the Software Development Platform: Rational Software Modeler and Rational Software Architect. While Rose is based on UML 1.4, Software Architect and Software Modeler support UML 2.0. The most significant changes between each UML version are in the area of behavioral diagrams; specifically, activity diagram and sequence diagrams.