PDCA's Beginnings

摘要

The 1920s can be recognized as the period of industrialization following Frederick Taylor's work and the dawn of the field of quality. Walter Shewhart of Bell Laboratories invented the concept of control charts, and H,F. Dodge and H.G. Romig developed acceptance-sampling methods. The '20s also saw the United States enjoying postwar prosperity as one of the victors of World War I. In those days, quality methods were considered trade secrets because they provided a competitive edge. Americans enjoyed the benefits of mass production as the price of goods such as cars came down.