Model based cost optimization for engineering and management

Long lasting systems like airplanes have a cost structure where the maintenance costs are larger than the purchasing costs. Besides, the growing amount of electronics leads to a much higher sensitivity with respects of failures in the electronic system. Testing is required, both for preventive maintenance as well as repair. Previously we have looked at the impact of test and design for testability on the cost structure. We have developed a complex cost model as well as a state of the art of cost modeling tool that allows the evaluation of the model. Finally, we show how cost modeling can effectively be integrated into the system design flow.