
16 A First Course in Quality Engineering
1.6 Quality, Productivity, and Competitive Position
In the days when quality control was done by inspecting all of the units
produced and then passing the acceptable products after rejecting those
that were not, improvement in quality was accomplished by rejecting prod-
ucts, which resulted in a decrease in saleable products (see Old Model in
Figure1�2)� This had given rise to the impression that quality improvement
was possible only with a loss in output�
On the other hand, when product quality is achieved through a quality
system, through use of methods that will prevent the production ...