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| Criterion |  Decision Making Assumption Surfacing |  Decision Making Risk Matrix |  DevOps Blameless Postmortem |  Delivery Cost of Delay |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 45-90 min | 30-60 min | 30-90 min | 90-180 min |
Participantsdifferent | 2-8 | 3-10 | 3-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Risk Matrix, Top Risk List | Postmortem Doc, Action Items, Timeline | CoD Table, Prioritization Sequence |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | RiskDecisionPrioritizationAssessment | Site Reliability EngineeringIncidentLearningReliability | PrioritizationDeliveryEconomicsDecision |