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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Red Teaming |  Decision Making Pre-Mortem |
|---|---|---|---|
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 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. |
Complexitydifferent | High | High | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-4 h | 20–45 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-8 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop | 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 | Challenge Findings, Risk Register, Mitigation Plan | Risk list, Mitigation plan, Assumption log |
Tags1 shared | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionSensemaking | RiskDecisionFailurePlanning |
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