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| Criterion |  Decision Making Delphi Method |  DevOps Game Day |  Operations Root Cause Tree Analysis |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 1-4 Wochen | Halber Tag | 1-3 h | 1-4 h |
Participantsdifferent | 6-30 Experten | 5-20 | 2-8 | 3-8 |
Formatdifferent | Async | Workshop | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Simulation Notes, Gaps List, Updated Runbooks | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ResilienceOperationsIncident | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident |