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 unusual variability occurs.

Jan 28, 2025 · Since this article describes a plethora of control charts, there are simple questions a practitioner can ask to find the appropriate chart for any given use. Accordingly, figure 13 walks …

See a sample control chart and create your own with the control chart template (Excel). You can also search articles, case studies, and publications for control chart resources. The Quality Toolbox. …

Jun 19, 2025 · Control charts plot sample statistics with ±3 σ control limits, separating common-cause noise from special-cause signals. Early detection prevents tampering, sustains Six Sigma stability, …

Guide to what is Control Chart. We explain its types, comparison with run chart and histogram, examples, uses, & disadvantages.

Jun 15, 2023 · In plain English, these charts show relationships between the numbers you’ve collected. This is a sample of a Control Chart: The numbers can be from anything: How many minutes late or …

Feb 9, 2026 · Control charts show two types of variation. Common cause variation is normal and needs no action. Special cause variation means something unusual happened, and you should investigate. …

Oct 19, 2025 · In manufacturing quality control, the Control Chart is one of the most powerful and visual tools used to monitor process variation over time. It helps quality engineers to find difference …

Apr 3, 2025 · Learn how a control chart works in project management with simple types, steps, and real examples from construction to track cost, quality, time, and safety.

Jan 27, 2026 · The correct control chart will then be displayed automatically. Below, you can see a list of the control charts along with instructions on how to create them.