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| Criterion |  DevOps Blameless Postmortem |  Facilitation Power Interest Grid |  Facilitation Alignment Mapping |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|---|
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. | When many stakeholders compete for attention at once, the Power Interest Grid sorts them by influence and stake. It turns individual contributions into a visible selection. The result is captured as a Power Interest Grid and a stakeholder-specific strategy. | When several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-90 min | 30-60 min | 1-2 h | 15-45 min |
Participantsdifferent | 3-12 | 2-8 | 4-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Power Interest Grid, Strategy per Stakeholder | Alignment Map, Open Issues, Decision Questions | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | StakeholdersFacilitationAlignmentPlanning | AlignmentStakeholdersStrategyFacilitation | ComparisonFacilitationAlignment |