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| Criterion |  Decision Making Risk Matrix |  Decision Making Assumption Surfacing |  DevOps Blameless Postmortem |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
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. | 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. | 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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30-60 min | 45-90 min | 30-90 min | 60-90 min |
Participantsdifferent | 3-10 | 2-8 | 3-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Risk Matrix, Top Risk List | Assumption List, Critical Assumptions, Learning Plan | Postmortem Doc, Action Items, Timeline | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | RiskDecisionPrioritizationAssessment | AssumptionsRiskDecisionDiscovery | Site Reliability EngineeringIncidentLearningReliability | ExperimentsPrioritizationDiscoveryHypothesis |