I would like to know, whether it is possible to convert a VP 3.* UML 1.x project into a UML 2.0 project with VP 4.0/VP4.1. Exporting the old project to XMI and importing it into a new UML 2.0 project does not help since this destroys all the relations between the classes in my model. The relations just appear as diamond-boxes with strange self-references. The list of relations in the imported class is not correct anymore.
Currently there is no conversion from UML 1.x project to UML 2.0 project. Sorry for the inconvenience caused.
In the current version of VP-UML, you can convert the UML 1.x project into UML 2.0 through XMI import & export. But please note that there are differences between UML 1.x and 2.0 and some model & attributes will be lost after conversion. If you have any further questions, please feel free to contact us again.