The purpose of the book is to help practicing engineers learn to y Taguchi experimental design techniques through the use of ry, step-by-step applications of concepts, and an introduction he Qualitek-4. software. Common manufacturing floor language sed to make the book understandable by technicians, engineers, managers. Equations are reduced in the text to further litate understanding. The book accomplishes this task and is a readable book. The reader, however, should be alert for occasional graphical errors in the text and calculations, which are always obvious.