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| Criterion |  Product Discovery Working Backwards |  Architecture Request for Comments |  Architecture Architecture Inception Canvas |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | When the target state and benefit need to be clear first, it thinks backward from the desired outcome into the product logic. It sharpens vision, objections, and value proposition before elaboration. | 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. | 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. | 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 | Medium | Medium | Low | Low |
Timedifferent | 4-8 h, mehrere Iterationen | 1-3 Wochen vom Draft bis zur Entscheidung | 1-2 h | 30-60 min |
Participantsdifferent | 2-6 | 3-20 Reviewer | 3-8 | 2-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Inception Canvas, Risks, Goal List, Open Questions | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | VisionNarrativeAlignment | ArchitectureDecisionAsyncGovernance | AlignmentArchitectureCanvas | DecisionRolesGovernanceAlignment |