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| Criterion |  Operations Kaizen Event |  Operations Failure Mode and Effects Analysis |  Product Discovery Test Card |  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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | High | Low | Low |
Timedifferent | 0.5-5 Tage | 2-6 h | 20-35 min | 30-60 min |
Participantsdifferent | 4-10 | 3-10 | 1-5 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | FMEA Table, Risk Priority, Mitigation Actions | Test Card with a pre-set threshold | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanContinuous improvementOperations | RiskQualityOperationsRoot cause | ExperimentsValidationDiscoveryHypothesis | Root causeQualityOperations |