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Car Periphery Supervision (CPS) systems comprise a family of automotive systems that are based on sensors installed around the vehicle to monitor its environment. The measurement and evaluation of sensor data enables the realization of several kinds of higher level applications such as parking assistance or blind spot detection. Although a lot of similarity can be identified among CPS applications, these systems are traditionally built separately. Usually, each single system is built with its own electronic control unit, and it is likely that the application software is bound to the controller's hardware. Current systems engineering therefore often leads to a large number of inflexible, dedicated systems in the automobile that together consume a large amount of power, weight, and installation space and produce high manufacturing and maintenance costs.

In the automotive industry a growing number of mono-functional control units with increasing complexity on one hand and requirements for reduced power con-sumption and mounting space on the other hand are enforcing an architectural change of the car electronics. Computer platforms with a client/server architecture are candidates to reduce the number of control units drastically followed by a reduction of costs, space and better integration possibilities for enhanced func-tionalities as well as additional services. The problem which comes up now if those architectures are coming to the cars is to cope with software complexity and reliability issues under the aspect of continuously evolving hardware infrastructure. To understand the problems better, the Corporate Engineering within Robert Bosch GmbH has build a multifunctional look-and-feel demonstrator in a first step using a component-based software architecture on a standard PC-platform. Experiences are reported.