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| Criterion |  Facilitation Barcamp |  Facilitation Lean Coffee |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Open Space Technology |
|---|---|---|---|---|
Purposedifferent | When many people can contribute knowledge and the flow should stay open, Barcamp provides a framework for self-organized sessions. The format channels energy without defining the content too narrowly in advance. | 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. | 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 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. |
Complexitydifferent | Medium | Low | High | High |
Timedifferent | Halber Tag bis 2 Tage | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 0.5-2 Tage |
Participantsdifferent | 15-200 | 3-20 | Evaluation team, architects, and relevant stakeholders | 20-500+ |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Session Board, Session Notes, Community Learnings | Prioritized Topics, Discussion Notes, Action Items | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Session Marketplace, Proceedings, Action Topics |
Tagsno overlap | FacilitationLarge groupLearning | FacilitationAutonomyDialogue | ArchitectureQualityRiskTradeoffsStakeholders | FacilitationLarge groupAutonomy |