Enter the total number of defects found between the end of System Integration and Test and the completion of Phase 3. System integration complete is a QSM-defined milestone that represents the point at which all configuration items have been placed under change control and integrated into the evolving system. It is significant, because this is the first time that defect counts reflect all functionality to be delivered (as opposed to only 20% of delivered features). This information will be used to calculate a Defect Tuning factor for the project.