chapter 13 - summary - Summary of Key Points and...

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Summary of Key Points and Terminology – Chapter 13 Statistical process control (SPC) is a methodology for monitoring a process to identify special causes of variation and signal the need to take corrective action when appropriate. When special causes are present, the process is deemed to be out of control . If the variation in the process is due to common causes alone, the process is said to be in statistical control . Histograms alone do not allow you to distinguish between common and special causes of variation. Capability and control are independent concepts. Ideally, we would like a process to have both high capability and be in control. If a process is not in control, it should first be brought into control before attempting to evaluate process capability. Control charts have three basic applications: (1) establishing a state of statistical control, (2) monitoring a process to identify special causes, and (3) determining process capability. The process for constructing and using a control chart includes preparation, data collection, determination of trial control limits, analysis
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This note was uploaded on 08/22/2010 for the course ESI 6224 taught by Professor Ahmadelshennawy during the Spring '10 term at University of Central Florida.

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chapter 13 - summary - Summary of Key Points and...

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