Several of the quality-control methods have been carried on in industry for many years. What are new in the modern approach to quality control are integration of these often uncoordinated activities into an over-all administrative program for a factory and the addition to the time-tested methods used of a few new techniques which have been found useful in dealing with and thinking about the increased emphasis upon precision in manufactured parts.

p. 1 - Quality Control: Principles, Practice, and Administration. 1951