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Seven basic tools of quality
From Wikipedia, the free encyclopedia
(Redirected from Seven Basic Tools of Quality)
The seven basic tools of quality is a designation given to a fixed set of graphical techniques identified as being most helpful in Examples

troubleshooting issues related to quality.!'] They are called basic because they are suitable for people with little formal training in statistics
and because they can be used to solve the vast majority of quality-related issues.

Overview [edit]

The seven tools are:[31/41I5]

 

1. Check sheet

2. Control chart

3. Stratification (alternately, flow chart or run chart)
4. Pareto chart

5. Histogram

Cause-and-effect diagram | Check sheet

 

bh. 5

6. Cause-and-effect diagram (also known as the "fishbone" or Ishikawa diagram)
7. Scatter diagram

 

The designation arose in postwar Japan, inspired by the seven famous weapons of Benkei.!6] It was possibly introduced by Kaoru
Ishikawa who in turn was influenced by a series of lectures W. Edwards Deming had given to Japanese engineers and scientists in
1950.(7] At that time, companies that had set about training their workforces in statistical quality control found that the complexity of the
subject intimidated most of their workers and scaled back training to focus primarily on simpler methods which suffice for most quality-
related The Project Management Institute references the seven basic tools in A Guide to the Project Management Body of
Knowledge as an example of a set of general tools useful for planning or controlling project quality.!°)

 

 

 

 

 

1 J

 

Control chart Histogram

The seven basic tools stand in contrast to more advanced statistical methods such as survey sampling, acceptance sampling, statistical
hypothesis testing, design of experiments, multivariate analysis, and various methods developed in the field of operations research, !10] :

See also [edit]

e A3 problem solving

 

  

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