1 / 8

Statistical Process Control

Statistical Process Control. What is a GOOD measure? . Reflects the Voice of the Customer. Ties to business goals. Identifies opportunities to improve the process. Measures are consistent. Types of Variation. Common Cause:. Special Cause:. How to Read a Control Chart.

earnest
Download Presentation

Statistical Process Control

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Statistical Process Control

  2. What is a GOOD measure? Reflects the Voice of the Customer Ties to business goals Identifies opportunities to improve the process Measures are consistent

  3. Types of Variation • Common Cause: • Special Cause:

  4. How to Read a Control Chart

  5. Common Vs. Special Causes Region of Special Cause (unexpected) Variation UCL Region of Common Cause (expected) Variation IndividualValue LCL Region of Special Cause (unexpected) Variation TIME

  6. Determining if the Process is “Out of Control” Action Point Statistical Trend 4 of 5 Upper Control Limit Zone A Zone A Zone B Zone B Zone C Zone C Zone C Zone C Zone B Zone B Zone A Zone A Lower Control Limit Process Shift 2 of 3

  7. Special Cause Strategy • Eliminate specific special causes; make an unstable process stable. Get timely data Take immediate action Find out what was different on that occasion. Develop a longer-term remedy that will prevent that recurrence.

  8. Common Cause Strategy • The process shown here is stable. • But does it need to be improved? Customer Needs } Time

More Related