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| Criterion |  Decision Making Delphi Method |  DevOps Blameless Postmortem |  Operations 5 Whys |  Decision Making OODA Loop |
|---|---|---|---|---|
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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | In dynamic situations, decisions become outdated faster than they can be prepared. The OODA Loop holds observing, orienting, deciding, and acting together as a recurring rhythm so reaction does not slide into inertia. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 30-90 min | 15-30 min | 15-60 min je Zyklus |
Participantsdifferent | 6-30 Experten | 3-12 | 2-6 | 1-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures | Situation Assessment, Decision Loop, Action Updates |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving | DecisionChangeLearningStrategy |