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| Criterion |  Operations Kaizen Event |  Operations Fishbone Diagram |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
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. | 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. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 0.5-5 Tage | 30-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 4-10 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Fishbone Diagram, Cause Categories, Investigation Backlog | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | LeanContinuous improvementOperations | Root causeQualityOperations | ExperimentsValidationDiscoveryAssumptions |
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