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| Criterion |  Decision Making Delphi Method |  DevOps Blameless Postmortem |  Operations 8D Problem Solving |  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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | In dynamic situations, decisions become outdated faster than they can be prepared.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 | High | Medium |
Timedifferent | 1-4 Wochen | 30-90 min | 1-6 Wochen | 15-60 min je Zyklus |
Participantsdifferent | 6-30 Experten | 3-12 | 4-10 | 1-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Situation Assessment, Decision Loop, Action Updates |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Site Reliability EngineeringIncidentLearningReliability | QualityProblem solvingRoot cause | DecisionChangeLearningStrategy |