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| Criterion |  Decision Making Delphi Method |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Pre-Mortem |
|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. | 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 | 1-4 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 20–45 min |
Participantsdifferent | 6-30 Experten | Evaluation team, architects, and relevant stakeholders | Small cross-functional group |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionFailurePlanning |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
