Using Quality Improvement Tools
Pareto Charts
What: A Pareto chart is a graphical tool for ranking causes of problems from the most to least significant.
The Pareto principle, identified by Vilfredo Pareto and often called the 80-20 rule, initially pointed out that the greatest portion of wealth in Italy was concentrated in a few families.
Joseph Juran used it to define a quality concept where 80% of problems come from 20% of causes - and improvement efforts should be focused on those causes.
Why: Helps to focus improvement efforts on the most significant issues
When: Use pareto charts when you want to rank-order causes of problems
How: