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| Criterion |  Decision Making Assumption Surfacing |  Decision Making Risk Matrix |  Architecture Software Architecture Canvas |  Architecture Architecture Inception 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. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 45-90 min | 30-60 min | 1-2 h | 1-2 h |
Participantsdifferent | 2-8 | 3-10 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Risk Matrix, Top Risk List | Architecture Canvas, Goals, Constraints, Quality Attributes | Inception Canvas, Risks, Goal List, Open Questions |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | RiskDecisionPrioritizationAssessment | CanvasArchitectureAlignmentWorkshop | AlignmentArchitectureCanvas |