The increasing individualization of the customer needs and through this the rising number of product variants led to higher complexity in almost all enterprise processes. Customers are served by new products, in partly new markets and whatever a customer wishes is also taken into account. Over the time the product complexity increases more and more in the business fields and gets almost incalculable. Procedures are necessary, which are able to distinguish economic and not economic variants and provide a lasting guarantee of an optimal diversity of variants.