The misplaced origin of just‐in‐time production methods

Just‐in‐time (JIT) production methods were popularized by the excellent results achieved by Japanese industry. When it became evident during the 1970s that the Japanese were gaining markets previously dominated by Americans, there was considerable interest in learning how Japanese industry operates. Then, during the early 1980s, Toyota’s highly effective JIT production system had a particular appeal to Americans who were trying to understand Japanese production methods. While Taichi Ohno, creator of Toyota’s production system, credits Henry Ford as the originator, it is now known that Ernest Kanzler, one of Ford’s subordinates, played a major role in developing JIT production methods. This article reports Ford’s and Kanzler’s contributions and explores the possible influence that Frederick W. Taylor may have had on the development of this approach at the Ford Motor Company.