A method of rating manufactured product

This paper outlines a method of rating manufactured product. In the particular form here described, the rate has been found very useful for measuring the quality of communication equipment and materials entering the plant of the Bell System. While the primary object is control of quality of finished product, it is proving useful for measuring the workmanship of individual operators and groups of operators engaged in similar production work. Particular attention is directed to the statistical aspects of the rate to show how it can assist in controlling quality.