If the evidence collected does not support an effective change, or if the problem still exists or recurs, the team should review the problem-solving investigation and analysis once again. Effectiveness checks may fail due to poor investigation, or the solutions were aimed at the symptoms rather than the causes of the problem.
Common reasons for ineffective problem-solving are:
- Incorrectly or incompletely describing the non-conformity
- Hasty problem-solving activities
- Lack of team participation from cross-functional groups
- Poor or infrequent communication regarding the focus of the process
- No logical process
- Misidentification of the root cause
- Poorly implemented corrective/preventive action plans
- Failure to review lessons learned