Abstract: The present invention relates to a method for optimizing a production process having starting products, intermediate products, and at least one final product, having the steps of quant generation and optimization. A feasible production plan for performing and/or controlling the production process is obtained as a result of the method, the feasible plan being established from the starting variables of target inventory quantities of the final products for at least one period and a material flow network, in which one or more production steps are each describable by one or more precursor products and one or more successor products and the linkages between production steps are describable through precursor and successor products and through the material factors.