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| Criterion |  Architecture Architecture Inception Canvas |  Decision Making Constraint Analysis |  Architecture Request for Comments |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 1-2 h | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 30-60 min |
Participantsdifferent | 3-8 | 2-8 | 3-20 Reviewer | 2-10 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Inception Canvas, Risks, Goal List, Open Questions | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | AlignmentArchitectureCanvas | ConstraintsDecisionPlanningOptions | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernanceAlignment |