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| Criterion |  Decision Making Delphi Method |  Decision Making Pre-Mortem |  Architecture Architecture Communication Canvas |  Architecture arc42 |
|---|---|---|---|---|
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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 20–45 min | 60-120 min | 1-2 Tage |
Participantsdifferent | 6-30 Experten | Small cross-functional group | 2-8 | 1-4 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Risk list, Mitigation plan, Assumption log | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ForecastingExpertsDecisionStrategy | RiskDecisionFailurePlanning | ArchitectureCommunicationStakeholdersCanvas | ArchitectureDocumentationCommunication |