Quantitative performance measure is being practiced by the software development company that evaluates solutions against the number of defects reported in the testing phase. Quantitative performance measures are those that use numerical values or statistics to assess the performance of a solution or an organization. They can help to measure aspects such as quality, efficiency, productivity, profitability, customer satisfaction, etc. The number of defects is a quantitative measure of quality that indicates how well a solution meets its specifications and expectations. References: : Quantitative Performance Measures