The customer's demands on the automobile manufacturer, and also the demands of the automobile manufacturer on the system provider, are today "quick and customized". This leads to a manufacturing process that is quick, flexible and economic, and responsive to new demands.

Siemens as a system supplier to the automobile industry is thus putting great efforts into the close integration of the virtual and the real manufacturing systems. The goal is to be able to change a product even whilst it is already being produced.