What is the focus of a control chart?

The primary focus of a control chart is to monitor the stability of a process over time. Control charts are statistical tools used in quality control to track the performance of a process. They display data points over time and help identify variations in the process, distinguishing between common cause variations (which are inherent to the process) and special cause variations (which indicate potential issues or anomalies).

By continuously observing the process through control charts, organizations can maintain process control, improve product quality, and reduce variability. This allows managers to implement timely interventions when the process deviates beyond acceptable limits, ensuring consistent output and adherence to quality standards.

In summary, control charts serve an essential role in quality management by providing a visual representation of process stability, enabling better decision-making based on empirical data.