It is extremely important that companies, working together in a system manufacturer/sub supplier relationship, agree on which strategic factors to prioritize. A mismatch could make the cooperation less successful than if they agree on the competitive priorities. A tool for evaluating the congruence between the manufacturing strategies and the existing manufacturing system has been described by Professor John Miltenburg (1995). Säfsten and Winroth (2001) developed this tool further. The purpose of this paper is to show one example of using this tool for a supply chain, i.e. for a system manufacturer and his sub suppliers.