What is a primary use of Quality Control Charts?

Quality Control Charts are primarily used to monitor a business process over time. These charts graphically display data points in relation to time and allow organizations to observe variations in a process's output. By doing so, they help identify trends, deviations, or shifts in performance, which can indicate whether a process is in a state of control or if corrective action is needed.

The utilization of Quality Control Charts is crucial in maintaining consistency in the production process and ensuring that products meet quality standards. As data is collected over time, these charts can reveal underlying patterns, helping organizations to make informed decisions about process improvements. This monitoring aspect focuses on evaluating the stability and capability of a process and is fundamental to Lean Six Sigma methodologies, which emphasize quality management through data-driven approaches.