Search results
Results From The WOW.Com Content Network
Control Chart. Excerpted from The Quality Toolbox, ASQ Quality Press. The Control Chart is a graph used to study how a process changes over time with data plotted in time order. Learn about the 7 Basic Quality Tools at ASQ.
A control chart—sometimes called a Shewhart chart, a statistical process control chart, or an SPC chart—is one of several graphical tools typically used in quality control analysis to understand how a process changes over time.
Control charts are an essential tool in the Six Sigma methodology to monitor and control process variation. Six Sigma is a data-driven approach to process improvement that aims to minimize defects and improve quality by identifying and eliminating the sources of variation in a process.
Control charts are indispensable in the toolkit of quality control, providing a systematic and visual approach to monitoring process stability and identifying areas for improvement.
Control chart: Graph used to study how a process changes over time. Comparing current data to historical control limits leads to conclusions about whether the process variation is consistent (in control) or is unpredictable (out of control, affected by special causes of variation).
Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to monitor process stability and control. A less common, although some might argue more powerful, use of control charts is as an analysis tool.
This makes control charts a fundamental quality management tool in Six Sigma. By identifying variation, control charts enable companies to determine if corrective actions need to be taken to improve product or service quality. What are Control Charts in Six Sigma? Control charts are graphical representations of process data over time.
Known around the world as the seven quality control (7-QC) tools, they are: Cause-and-effect diagram (also called Ishikawa diagram or fishbone diagram) Check sheet. Control chart. Histogram. Pareto chart. Scatter diagram. Stratification.
Definition: A Control Chart, also known as a statistical process Control Chart, is a statistical tool used to monitor, control, and improve the quality of processes. It visually displays process data over time and allows you to detect whether a process is in statistical control or not.
The Control Chart is one of the Seven Basic Quality Tools. A control chart is a graphic display of data that shows how well a process or system performs over time. The control chart displays the performance of a process in terms of its ability to meet specifications.