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Learn what SPC charts are, why they are used, and how to create them for process control and improvement. This article covers the basics of SPC charts, control limits, and SPC tools with examples and diagrams.
A control chart is a graph that shows how a process changes over time and helps to identify special causes of variation. Learn how to create, interpret and use control charts for variable and attribute data with ASQ resources, articles, case studies and videos.
SPC is the use of statistical techniques to control a process or production method. Learn about SPC tools, such as control charts, and how they differ from SQC tools, such as the 7-QC tools.
In the realm of statistical process control (SPC), attribute charts are invaluable tools for monitoring and controlling processes where data is categorized as attributes rather than variables. In-depth with SPC chart types. Attributes are qualitative characteristics that can be classified as “defective” or “non-defective.”
SPC is a method to monitor, control, and improve product quality and efficiency using statistical methods. Learn the history, concepts, types, and steps of SPC with examples and control charts.
Learn how to use control charts to monitor process performance and identify special causes of variation. The web page explains the concepts of common and special causes, control limits, zones, and 8 control chart rules with examples and a video.
To determine stability, LEAN Six Sigma puts to use stability process control (SPC) charts, or X Charts. These charts are essentially a histogram in the form of a line chart that shows variations in production–both standard variation and unusual or extreme variation.
Learn what SPC is, how it helps you monitor and improve your process, and what benefits and best practices it offers. See examples of control charts and how to distinguish between common and special cause variation.
Learn how to use SPC charts to monitor and improve your data over time. This tool helps you record, plot and analyse your data, and apply SPC rules and step changes to your process.
When monitoring a process through SPC charts the inspector will verify that all data points are within control limits and watch for trends or sudden changes in the process. If any special causes of variation are identified, appropriate action should be taken to determine the cause and implement corrective actions to return the process to a ...