Control charts are graphical plots used in production control to determine whether quality and manufacturing processes are being controlled under stable conditions.

Control charts for variable data are used in pairs. The top chart monitors the average, or the centering of the distribution of data from the process. The bottom chart monitors the range, or …

Jan 28, 2025 · How do you know which control charts to use for an improvement project? Our guide can help you identify which works best for your needs.

A control chart displays process data by time, along with upper and lower control limits that delineate the expected range of variation for the process. These limits let you know when …

Control charts are used as a way to display the performance of a process over time. This is done by plotting the measured output data points on a chart, allowing those viewing them to track …

Jan 7, 2025 · Control charts are graphical representations of process data over time, which help monitor the stability and variability of a process.

Jul 23, 2025 · A Control Chart is a graphical representation used to study how a process changes over time. It plots data points in the time order and helps detect trends or shifts in the process …

Control charts are graphs that plot your process data in time-ordered sequence. Most control charts include a center line, an upper control limit, and a lower control limit. The center line …

If a single quality characteristic has been measured or computed from a sample, the control chart shows the value of the quality characteristic versus the sample number or versus time.

Oct 19, 2025 · What is a Control Chart? In manufacturing quality control, the Control Chart is one of the most powerful and visual tools used to monitor process variation over time.