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| Criterion |  Decision Making Risk Matrix |  DevOps Blameless Postmortem |  Decision Making Decision Matrix |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30-60 min | 30-90 min | 45-90 min | 45-90 min |
Participantsdifferent | 3-10 | 3-12 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Postmortem Doc, Action Items, Timeline | Decision Matrix, Scoring Rationale, Selected Option | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RiskDecisionPrioritizationAssessment | Site Reliability EngineeringIncidentLearningReliability | DecisionCriteriaScoringTradeoffs | AssumptionsRiskDecisionDiscovery |