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| Criterion |  DevOps Blameless Postmortem |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Stakeholder 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | When an initiative depends on many people, interests, and power dynamics, Stakeholder Mapping systematically orders the environment. It shows who influences, who is affected, and where relationship management or safeguarding matters first. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 60–90 min |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Stakeholder Map, Engagement Plan, Risk Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureQualityRiskTradeoffsStakeholders | StakeholdersAlignmentFacilitationChange |
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