Summary Furthermore, the lack of expressiveness and flexibility of today´s model-based Useware Engineering process often results in the generation of unusable user interfaces and as a consequence still hinders the use of context-sensitive user interfaces in ambient intelligent, industrial environments. Based on this deficit, a development process and model-based architecture for the design of context-sensitive user interfaces for supporting mobile maintenance tasks in ambient intelligent production environments is presented in this thesis. To support the flexible design of more usable context-sensitive user interfaces, this work focuses on improving the design phase of the model-based Useware Engineering process.weiterlesen