Reliable operating modes for distributed embedded systems

Hard real-time embedded distributed systems pose huge demands in their implementation which must contain as few faults as possible. Over the past years, model-driven development and automatic code generation have proven to effectively reduce design faults in those systems. Still, models are mainly used for parts of the systems´ functionality and most solutions do not address the generation of a whole system. In this paper we will showcase an approach for code generation for entire systems. A crucial step is the semantically correct realization of operating modes defined in the model. If they are not changed synchronously, a distributed system will show unpredictable behavior. We will demonstrate how a reliable transition between operating modes, even for a distributed system, can be achieved. Our approach is exemplified using a case study we carried out recently.