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| Criterion |  Operations Kaizen Event |  Decision Making PERT Estimation |  Operations 5 Whys |
|---|---|---|---|
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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 0.5-5 Tage | 15-45 min | 15-30 min |
Participantsdifferent | 4-10 | 1-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | PERT Estimate, Expected Value, Risk Notes | Root cause notes, Countermeasures |
Tagsno overlap | LeanContinuous improvementOperations | EstimationUncertaintyRisk | Root causeIncidentLeanProblem solving |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
