What is the metric for the quality dimension of a process?

The correct choice emphasizes the importance of measuring how well a product or service meets customer requirements in terms of accuracy, consistency, and satisfaction. Product launch variance serves as a metric for quality because it assesses the extent to which a product is delivered according to the specifications and timelines that were promised. A small variance indicates that the product was launched as expected, thereby reflecting high quality and reliability, which are crucial for customer satisfaction and retention.

On the other hand, lead time is more about the efficiency of the process rather than its quality, as it measures the time taken to complete a process from start to finish. Inventory supply days focus on stock management and does not directly indicate product quality. Market share, while reflective of overall business success, does not provide specific insights into the quality of individual products or processes. Thus, product launch variance is the most relevant metric for assessing the quality dimension of a process.