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Selected:ATAM (Architecture Tradeoff Analysis Method)Incident Command4Ls RetrospectiveBlameless Postmortem
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  DevOps Incident Command |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | As needed | 45–75 min | 30-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 4-15 | Team members involved | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Incident Log, Action Tracker, Stakeholder Updates | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | IncidentOperationsReliability | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability |