Quality Tools

Topics: Vilfredo Pareto, Joseph M. Juran, Flowchart Pages: 4 (426 words) Published: July 9, 2013
7 Quality Tools

Cause-Effect Diagrams

Flow Charts

The 7 Quality Tools for Process Improvements

Pareto Chart

Where did the Basic Seven come from?
Kaoru Ishikawa
• Known for “Democratizing Statistics” • The Basic Seven Tools made statistical analysis less complicated for the average person • Good Visual Aids make statistical and quality control more comprehendible.

What Is a Flowchart?
A diagram that uses graphic symbols to depict the nature and flow of the steps in a process.

Benefits of Using Flowcharts
• Promote process understanding • Provide tool for training • Identify problem areas and improvement opportunities " Draw a flowchart for whatever you do. Until you do, you do not know

what you are doing, you just have a job.” -- Dr. W. Edwards Deming.

Keys to Success
• • • • • Start with the big picture Observe the current process Record process steps Arrange the sequence of steps Draw the Flowchart

What Is a Cause and Effect Diagram?
A graphic tool that helps identify, sort, and display possible causes of a problem or quality characteristic.

Benefits of Using a Cause-and-Effect Diagram
• • • • • • Helps determine root causes Encourages group participation Uses an orderly, easy-to-read format Indicates possible causes of variation Increases process knowledge Identifies areas for collecting data

Data Collection
• • • • Where What Who How

Shifts

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Defect Type

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Pareto Principle
• Vilfredo Pareto (1848-1923) Italian economist
– 20% of the population has 80% of the wealth

• adapted by Joseph Juran.
• Remember the 80/20 rule states that approximately 80% of the problems are created by approximately 20% of the causes.

Pareto Charts

Acme Pizza
Slices 0 1 2 3 4 5 6 7 Frequency 1 33 65 8 12 0 0 1 % 0.3 13.09 25.79 3.17 4.76 0 0 0.3

Acme Pizza
• The completed Pareto Analysis results in the following:

# times ordered...
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