Seven Basic Tools of Quality

A designation given to a fixed set of graphical techniques identified as being most helpful in troubleshooting issues related to quality.

The cause-and-effect diagram The check sheet The control chart The histogram The Pareto chart The scatter diagram Stratification

The cause-and-effect diagram

The check sheet

The control chart

The histogram

The Pareto chart

The scatter diagram

Stratification

Flow Chart

Run Chart

The Cause-and-Effect Analysis(Fish Bone diagram)

The Fishbone Diagram

A graphic tool that helps identify, sort, and display possible causes of a problem or quality characteristic.

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

Dr. Kaoru IshikawaThe Man behind the Fish-Bone Diagram

( 石川 馨 Ishikawa Kaoru, July 13, 1915 - April 16, 1989) 

In 1939 he graduated University of Tokyo with an engineering degree in applied chemistry.

Undertook the presidency of the Musashi Institute of Technology in 1978.

In 1949, Ishikawa joined the Japanese Union of Scientists and Engineers (JUSE) quality control research group.

Full professor in the Faculty of Engineering at The University of Tokyo (1960) Ishikawa introduced the concept of quality circles (1962) in conjunction with JUSE.