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Dr Walter A. Shewhart
Dr Walter A.

In 1924, whilst working at Bell Labs Dr Walter A.Shewhart (the father of Statistical Quality Control - SQC) first conceived the terms "assignable-cause" and "chance-cause" variation and developed the control chart as a statistical approach for distinguishing between them. Shewhart stressed that bringing a production process into a state of "statistical control", where there is only chance-cause variation, and keeping it in control, is necessary to predict future output and to manage a process economically.

W. Edwards Deming worked under Shewhart at Bell Labs and went on to champion many of Shewhart's methods including the Plan Do Study Act (PDSA) Improvement Cycle.

How to - Control Chart (pdf 221 kb)
The guide includes an overview of control charts, when to use them, how to use them, how to interpret results; as well as exercises for getting started...
The US Navy Total Quality Leadership Office

Further reading

The Memory Jogger II: A Pocket Guide of Tools for Continuous Improvement

The Memory Jogger II: A Pocket Guide of Tools for Continuous Improvement
Michael Brassard

This handy Pocket Guide uses graphics and easy-to-understand text to describe what the tools are, why they’re used, and how to use them. Tools are explained using real-life examples from all types of organisations, making them easy for everyone to understand and apply. The 22 Tools covered are
Activity Network Diagram, Affinity Diagram, Brainstorming, Cause & Effect (Fishbone), Check Sheets, Control Charts, Data Points, Flowchart, Force Field Analysis, Histograms, Interrelationship Digraph (ID), Matrix Diagram, Multivoting, Pareto Chart, Prioritization Matrices, Problem Solving Model, Process Capability, Radar Chart, Run Chart, Scatter Diagram, Team Guidelines, Tree Diagram, Process Decision, Program Chart, Nominal Group Technique (NGT).

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Statistical Tutorials
Statistical tutorials including Control Charts from Surfstat Australia...

Control Chart Tutorial

Excellent guide to Quality Control Charts provided by Statsoft's Electronic Statistics Text book....







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