A fundamental approach to SPC implementation

The building blocks required for a profitable statistical process control (SPC) system include adequate training, productive problem solving, and practical visibility. In addition, each SPC project must be designed to provide useful and timely data to serve the needs of the manufacturing and design organizations. As a process evolves from concept through implementation to a stable process under statistical control, the techniques used to monitor and improve the operation need to be tailored to the current state of the process. Utilization of the simplest possible techniques at a level commensurate with the appropriate phase of process development leads to a successful and productive system of process control. After the process is in control, statistically designed experiments can be utilized to continue the reduction in the variance associated with the process