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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Red Teaming |  Architecture Request for Comments |
|---|---|---|---|
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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. |
Complexitydifferent | High | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-4 h | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-8 | 3-20 Reviewer |
Formatdifferent | Workshop + async | 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 | Challenge Findings, Risk Register, Mitigation Plan | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionSensemaking | ArchitectureDecisionAsyncGovernance |
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