Ishikawa’s 7 basic tools of Quality

These are basic graphic based tools used for the troubleshooting issues related to quality. This is named after Kaoru Ishikawa, a Japanese University Professor.

Cause and Effect Diagrams
OR
Ishikawa Diagrams
OR
Fishbone Diagrams
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Herringbone Diagrams
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Fishikawa Diagrams
Used to show how factors linked to issues
Control Charts This is basically used to check whether a process is in control.
Flowcharts Flow diagrams
Histogram It is a vertical bar chart which is used to identify how often a variable state is occurred.
Pareto Chart This is a type of histogram but it is ordered by frequency of occurrence. The name case from the relation of Pareto’s Law – which says a relatively small number of causes will produce a majority of problems/defects. (80/20 rule. i.e., 80% problems are cased by 20% of causes)
Run Chart A run chart displays the history and pattern of variation. It is a line graph.
Scatter Diagram Used to show relationships between two variables.

2 comments:

  1. "Hi there,

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    ReplyDelete