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| Criterion |  Decision Making Assumption Surfacing |  Decision Making DACI |  Architecture Software Architecture 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. |
Complexitysame | Low | Low | Low |
Timedifferent | 45-90 min | 30-60 min | 1-2 h |
Participantsdifferent | 2-8 | 2-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | DACI Matrix, Decision Owner, Decision Log | Architecture Canvas, Goals, Constraints, Quality Attributes |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | DecisionRolesGovernanceAlignment | CanvasArchitectureAlignmentWorkshop |
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