A method for customer promotion includes sequentially processing each of a plurality of items in a customer order. A marginal discount associated with each item is determined. All unapplied marginal discounts are accumulated for application to the customer order. A discount is applied to the customer...http://www.google.fr/patents/US6609104?utm_source=gb-gplus-shareBrevet US6609104 - Method and system for accumulating marginal discounts and applying an associated incentive
Method and system for accumulating marginal discounts and applying an ...