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| Criterion |  Operations Kepner-Tregoe |  Operations Barrier Analysis |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Medium | High |
Timedifferent | 2-8 h | 2-4 h | 1-6 Wochen |
Participantsdifferent | 2-8 | 2-6 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tags1 shared | Problem solvingRoot causeDecisionOperations | Root causeSafetyIncident | QualityProblem solvingRoot cause |
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