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| Criterion |  Operations Kaizen Event |  Operations Change Analysis |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 0.5-5 Tage | 45-120 min | 2-6 h | 30-60 min |
Participantsdifferent | 4-10 | 2-6 | 3-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Change Matrix, Cause Hypotheses, Validation Questions, Action List | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanContinuous improvementOperations | ChangeRoot causeTroubleshootingComparison | RiskQualityOperationsRoot cause | Root causeQualityOperations |