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| Criterion |  Operations ABC Analysis |  UX Research Tree Testing |  Operations Kepner-Tregoe |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | 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 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 | Low | Medium | High | High |
Timedifferent | 30-60 min | 1-2 Tage | 2-8 h | 1-6 Wochen |
Participantsdifferent | 1-5 | Based on research question | 2-8 | 4-10 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Findability Metrics, Path Analysis, Revised IA | Problem Analysis, Decision Analysis, Risk Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | PrioritizationOperationsPortfolio | Information architectureNavigationFindability | Problem solvingRoot causeDecisionOperations | QualityProblem solvingRoot cause |