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| Criterion |  Decision Making Three-Point Estimation |  DevOps Blameless Postmortem |  Decision Making Wideband Delphi |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 10-30 min je Item | 30-90 min | 1-4 h or multiple rounds | 1-3 h |
Participantsdifferent | 1-8 | 3-12 | 4-12 Experten | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Estimate Range, Assumption Log, Expert Consensus Notes | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | EstimationUncertaintyForecasting | Site Reliability EngineeringIncidentLearningReliability | EstimationExpertsForecasting | LearningRetrospectiveIncidentOperations |