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Selected:Blameless PostmortemRAID LogAfter-Action ReviewATAM (Architecture Tradeoff Analysis Method)
| Criterion |  DevOps Blameless Postmortem |  Delivery RAID Log |  Operations After-Action Review |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 30-90 min | 30 min Setup, dann laufend | 20-45 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-12 | 1-3 maintaining, briefing for everyone | 3-12 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | RAID Log, Status Report Source | Lessons learned, Action items, Event summary | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RiskTrackingStakeholdersGovernance | LearningOperationsImprovement | ArchitectureQualityRiskTradeoffsStakeholders |