The analysis helps you identify the causes that justify further research. Since the cause and effect diagram identifies only the possible causes, project teams should use the Pareto diagram to determine the main cause that they should focus on first. An important point to consider is the appropriate level of detail when describing the issues. All issues should be described at a similar level, allowing us to conduct further research in the appropriate area.
If the main category has only a few specific causes, it usually indicates that a further identification of causes is needed. If one main junction has only a few related sub-divisions, the appropriate course of action is for them to be grouped into one category. Look for repeated causes in different areas. Repeated causes usually represent the root of issues. Establish measurements for each cause so you can quantify the consequences of any changes you might make. After establishing metrics, identify and solve the causes that you can take action on.