What is one of the main objectives of using control charts?

One of the main objectives of using control charts is to help track process performance over time. Control charts are essential tools in quality control that allow organizations to visually monitor and analyze processes for variability. By plotting data points over time, control charts enable practitioners to see trends, identify patterns, and detect any shifts in process behavior.

This monitoring helps to distinguish between common cause variation (inherent in the process) and special cause variation (due to external factors). By identifying these variations, organizations can take necessary actions to maintain or improve process stability and performance. This kind of ongoing analysis is crucial for ensuring that processes remain within predefined control limits, leading to consistent quality outputs.