the cost of poor quality, also referred to by the acronym copq, refers to the
Cost of poor quality (COPQ) or poor quality costs (PQC), are costs that would disappear if systems, processes, and products were perfect. COPQ was popularized by IBM quality expert H. James Harrington in his 1987 book Poor Quality Costs. [1] COPQ is a refinement of the concept of quality costs.