The document discusses quick changeover and SMED (Single Minute Exchange of Dies) techniques for lean manufacturing. It describes how SMED was developed to reduce setup times for processes from hours to minutes. The document outlines the traditional setup process, the SMED process involving separating internal and external setup steps, and provides examples of setup time reductions using SMED from several hours to just minutes. Benefits of setup reduction include better quality, flexibility, capacity and worker utilization.