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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Architecture Decision Record |  Decision Making Red Teaming |
|---|---|---|---|
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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments. |
Complexitydifferent | High | Low | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 15-45 min | 1-4 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-3 | 3-8 |
Formatdifferent | Workshop + async | 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 | ADR File, Decision Log, Rationale | Challenge Findings, Risk Register, Mitigation Plan |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureRationaleDocumentationGovernance | RiskDecisionSensemaking |
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