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| Criterion |  Facilitation Lean Coffee |  Facilitation Open Space Technology |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | When a group without a fixed agenda needs to get into useful conversations quickly, Lean Coffee structures the start around interests rather than a presentation. The group itself negotiates which topics get time first and which wait. | When a complex topic does not yet have a fitting agenda, Open Space Technology hands topic ownership back to the participants. The format suits questions that only move forward when real interest determines the order. | 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. |
Complexitydifferent | Low | High | Low |
Timedifferent | 30-90 min | 0.5-2 Tage | 15-45 min |
Participantsdifferent | 3-20 | 20-500+ | 1-3 |
Formatdifferent | Workshop | Workshop | Async |
Outputdifferent | Prioritized Topics, Discussion Notes, Action Items | Session Marketplace, Proceedings, Action Topics | ADR File, Decision Log, Rationale |
Tagsno overlap | FacilitationAutonomyDialogue | FacilitationLarge groupAutonomy | ArchitectureRationaleDocumentationGovernance |
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