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 |
|Used to show how factors linked to issues|
|Control Charts||This is basically used to check whether a process is in control.|
|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.|