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| Criterion |  Decision Making Assumption Surfacing |  Architecture arc42 |  Decision Making Pre-Mortem |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 45-90 min | 1-2 Tage | 20–45 min | 60-120 min |
Participantsdifferent | 2-8 | 1-4 | Small cross-functional group | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Architecture Document, Context View, Runtime View, Deployment View | Risk list, Mitigation plan, Assumption log | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | ArchitectureDocumentationCommunication | RiskDecisionFailurePlanning | ArchitectureCommunicationStakeholdersCanvas |