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| Criterion |  Operations A3 Problem Solving |  Operations Kaizen Event |  Operations Failure Mode and Effects Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 45-90 min | 0.5-5 Tage | 2-6 h | 2-8 h |
Participantsdifferent | 2-5 | 4-10 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | FMEA Table, Risk Priority, Mitigation Actions | Problem Analysis, Decision Analysis, Risk Plan |
Tags1 shared | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations | RiskQualityOperationsRoot cause | Problem solvingRoot causeDecisionOperations |