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Appendix 1: Using the Tool Kit
Tool selection is an important element of root cause analysis. Using
the improper tool could waste time and delay the discovery of the root
cause. Also important is the ability to quickly switch to a dierent tool
at the appropriate time. Figure A.1 is a chart to help guide tool selection.
Key: Hypothesis generation: Relationship analysis:
Process analysis: Data collection: Decision making: +
Tool Use
Ishikawa Diagram
Check Sheet with Tally Marks
Check Sheet with Graphical Representations
Run Charts
Histogram
Pareto Chart
Scatter Plot
Flow Chart
5 Why
Cross Assembling
Is-Is Not Analysis
Following Lines of ...