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| Criterion |  Decision Making Delphi Method |  DevOps Game Day |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. |
Complexitydifferent | High | High | High | Medium |
Timedifferent | 1-4 Wochen | Halber Tag | 2-6 h | 1-3 h |
Participantsdifferent | 6-30 Experten | 5-20 | 3-10 | 2-8 |
Formatdifferent | Async | Workshop | Workshop | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Simulation Notes, Gaps List, Updated Runbooks | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ResilienceOperationsIncident | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality |