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Selected:Open Space TechnologyATAM (Architecture Tradeoff Analysis Method)Lean CoffeeFishbowl Discussion
| Criterion |  Facilitation Open Space Technology |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Lean Coffee |  Facilitation Fishbowl Discussion |
|---|---|---|---|---|
Purposedifferent | 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. | 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 controversial topic needs depth and discipline at the same time, Fishbowl Discussion makes the structure of the conversation transparent. The format keeps the core small enough for real dialogue and open enough for controlled turnover. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 0.5-2 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 30-90 min | 45-90 min |
Participantsdifferent | 20-500+ | Evaluation team, architects, and relevant stakeholders | 3-20 | 8-80 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | 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 | Prioritized Topics, Discussion Notes, Action Items | Discussion Insights, Observed Tensions, Follow-up Questions |
Tagsno overlap | FacilitationLarge groupAutonomy | ArchitectureQualityRiskTradeoffsStakeholders | FacilitationAutonomyDialogue | FacilitationDialogueLarge group |