The article describes an approach for modeling a general method to deduct the factory requirements from a financial view. An aggregated model of the SADT-method with five process steps is visualized at the beginning. In addition to a short description of each process step, the article focuses on generation of meaningful scenarios including automobile volume forecasts. Therefore, the essential criteria and premises are taken into account via several influence factors. Finally, by using the counter-current process, economical requirements on the factory planning can be worked out in each scenario.