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| Criterion |  Product Discovery Working Backwards |  Architecture Architecture Decision Record |  Architecture Architecture Communication Canvas |  Architecture arc42 |
|---|---|---|---|---|
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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 4-8 h, mehrere Iterationen | 15-45 min | 60-120 min | 1-2 Tage |
Participantsdifferent | 2-6 | 1-3 | 2-8 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | ADR File, Decision Log, Rationale | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | VisionNarrativeAlignment | ArchitectureRationaleDocumentationGovernance | ArchitectureCommunicationStakeholdersCanvas | ArchitectureDocumentationCommunication |