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| Criterion |  Decision Making Delphi Method |  Decision Making Pre-Mortem |  Architecture arc42 |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 1-4 Wochen | 20–45 min | 1-2 Tage | 45-90 min |
Participantsdifferent | 6-30 Experten | Small cross-functional group | 1-4 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Risk list, Mitigation plan, Assumption log | Architecture Document, Context View, Runtime View, Deployment View | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ForecastingExpertsDecisionStrategy | RiskDecisionFailurePlanning | ArchitectureDocumentationCommunication | AssumptionsRiskDecisionDiscovery |