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Selected:ATAM (Architecture Tradeoff Analysis Method)Incident Timeline AnalysisRoot Cause Tree Analysis
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  DevOps Incident Timeline Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|
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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 60-180 min | 1-3 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
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 Timeline, Evidence Log, Delay Analysis, Improvement Actions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | IncidentTimelineSite Reliability Engineering | Root causeTreeIncidentQuality |
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