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| Criterion |  Operations ABC Analysis |  Decision Making Delphi Method |  Operations Root Cause Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Low | High | Medium | High |
Timedifferent | 30-60 min | 1-4 Wochen | 1-4 h | 2-8 h |
Participantsdifferent | 1-5 | 6-30 Experten | 3-8 | 2-8 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Expert Forecast, Consensus Range, Assumption Notes | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | PrioritizationOperationsPortfolio | ForecastingExpertsDecisionStrategy | Root causeProblem solvingQualityIncident | Problem solvingRoot causeDecisionOperations |