Sources of Variation

Out of the Crisis

Edward W Deming

Don't underestimate the power of pride in the workmanship of the Team!

Edward W Deming

There are two sources of variation:

1. Special causes

2. Common causes 

My Notes:

Special causes are easily understood and resolvable through Root-cause analyses and taking subsequent corrective actions

But the,second type of variation, common causes of variations are difficult to address as they are driven by random causes;

Solutions to address the common causes of variation are: to reduce the variation band by

1. Simplify the process

2. Provide the better training and retraining to the People

That's the role of management !!!