Quantitative objectives and requirements for product quality, service quality, and process performance. Quantitative process performance objectives include quality; however, to emphasize the importance of quality in the CMMI Product Suite, the phrase “quality and process performance objectives” is used. “Process performance objectives” are referenced in maturity level 3; the term “quality and process performance objectives” implies the use of quantitative data and is only used in maturity levels 4 and 5.