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| Criterion |  DevOps Blameless Postmortem |  Business Strategy Value Chain Analysis |  Business Strategy GAP Analysis |  Product Strategy Impact Mapping |
|---|---|---|---|---|
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. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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. | When a goal needs to be connected to several possible paths, it shows chains of impact instead of feature lists. It connects business goal, behavior change, and measures. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-90 min | Half day | 1-3 h | 45-90 min |
Participantsdifferent | 3-12 | 3-8 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Value Chain Map, Lever List | Gap Matrix, Action Plan, Risk Notes | Impact Map, Outcome Hypotheses, Delivery Options |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | StrategyBusiness modelDiagnosisAnalysis | StrategyAnalysisPlanning | OutcomesStrategyBehaviorPlanning |