In recent years the re-use of already existing solutions and ideas has become more and more crucial. Re-inventing the wheel over and over again is not feasible. Especially model based development approaches suffer from the lack of libraries populated with existing solutions and ideas which must just be tweaked in order to applicable to different context of use. Patterns have the potential to overcome this major shortcoming. In this paper we will try to stimulate and foster to idea of transferring the idea of patterns to the model-based development community. We will introduce patters as medium to capture ideas and solutions within the domain of model based design. Moreover the lack of tool support has led to situation that model