100万回の機会あたりの欠陥数（DPMO）

Defects Per Million Opportunities (DPMO) is a quality measurement metric used to quantify the number of defects in a process relative to the total number of opportunities for defects to occur. It is calculated by taking the number of defects, dividing it by the total number of opportunities, and then multiplying by one million, providing a standardized way to assess and compare quality performance across different processes or products. DPMO is instrumental in identifying areas for improvement in product design, innovation, research, and production, ultimately enhancing overall quality and customer satisfaction.