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| Criterion |  DevOps Blameless Postmortem |  Decision Making Pre-Mortem |  Business Strategy GAP Analysis |  Business Strategy Business Model Stress Test |
|---|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-90 min | 20–45 min | 1-3 h | Half day |
Participantsdifferent | 3-12 | Small cross-functional group | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Risk list, Mitigation plan, Assumption log | Gap Matrix, Action Plan, Risk Notes | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RiskDecisionFailurePlanning | StrategyAnalysisPlanning | StrategyBusiness modelRiskDiagnosis |