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| Criterion |  Operations Kepner-Tregoe |  Decision Making Delphi Method |  Operations A3 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. | 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. | 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. |
Complexitydifferent | High | High | Medium |
Timedifferent | 2-8 h | 1-4 Wochen | 45-90 min |
Participantsdifferent | 2-8 | 6-30 Experten | 2-5 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Expert Forecast, Consensus Range, Assumption Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Problem solvingRoot causeDecisionOperations | ForecastingExpertsDecisionStrategy | LeanProblem solvingCoachingOperations |
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