To meet fast changing demands on modern software architectures the ambition to shorten and improve software development processes has increased. The approach of model-driven software development focuses models as specification of software and on transformations of those models to finally get source code. The advantage of the model-driven approach still has to be proven because a continuous toolsupported transformation process from model to source code with regard to all aspects of a software system is not yet possible. This paper concentrates on the aspect of user interaction by presenting an easy to apply approach allowing for a toolsupported, model-driven software development of graphical user interfaces for any kind of platform. A case study demonstrates the usage and benefit of our model-driven approach applied to a common software development process.