In today’s competitive environment, manufacturers are more focused than ever on delivering high-quality products while reducing costs. Unfortunately, too often efforts are driven by a skewed perception of how best to achieve this goal. This is because many manufacturers pay greater attention to the cost of poor quality (CoPQ), comprising internal and external failure costs, over the cost of good quality (CoGQ), comprising proactive prevention and appraisal costs. As a result, they make reactive investments that yield less return and later prove to be insufficient.