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| Criterion |  Product Discovery Working Backwards |  Architecture Architecture Decision Record |  Architecture arc42 |  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 ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 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 | Low | Low | Low |
Timedifferent | 4-8 h, mehrere Iterationen | 15-45 min | 1-2 Tage | 30-60 min |
Participantsdifferent | 2-6 | 1-3 | 1-4 | 2-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | VisionNarrativeAlignment | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication | DecisionRolesGovernanceAlignment |