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| Criterion |  Decision Making Three-Point Estimation |  DevOps Blameless Postmortem |  Operations Learning Review |  DevOps Game Day |
|---|---|---|---|---|
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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 10-30 min je Item | 30-90 min | 1-3 h | Halber Tag |
Participantsdifferent | 1-8 | 3-12 | 3-10 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Learning Review Notes, System Factors, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | EstimationUncertaintyForecasting | Site Reliability EngineeringIncidentLearningReliability | LearningRetrospectiveIncidentOperations | ResilienceOperationsIncident |