This paper shows that 19 relevant attributes of quality reports can be distinguished. These attributes are useful if we want to systematically manage the quality of quality reports and were established through analysis of documents about quality reporting and the minutes of the SQ-ESAC workshop about quality reporting. Each attribute is defined, but according to the Object-oriented Quality Management model more steps can be taken. Requirements can be formulated for each attribute and causes and effects of problems can be analyzed. Based on these requirements and risk analysis, measures can be taken to assure the quality of quality reports.