An A3 problem-solving report is a report from quality management in A3 size (DIN A3), which compactly presents problem statements and details about their causes, thereby providing a basis for identifying and implementing corrective actions. There are various types of A3 reports, all structured to fit all necessary information on a single sheet of paper. The most well-known is the A3 problem-solving report. In the upper left quadrant, the problem is described, while the lower left quadrant lists the measures for identifying its causes and proposed solutions. The results of the analysis are recorded in the upper right quadrant, and the activities for implementing the solutions are noted in the lower right quadrant.