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| Criterion |  Facilitation Lean Coffee |  Facilitation Open Space Technology |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|
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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | Low | High | High |
Timedifferent | 30-90 min | 0.5-2 Tage | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-20 | 20-500+ | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Prioritized Topics, Discussion Notes, Action Items | Session Marketplace, Proceedings, Action Topics | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | FacilitationAutonomyDialogue | FacilitationLarge groupAutonomy | ArchitectureQualityRiskTradeoffsStakeholders |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
