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Selected:3-Circle Venn DiagramATAM (Architecture Tradeoff Analysis Method)Risk StormingConsensus Workshop
| Criterion |  Facilitation 3-Circle Venn Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Risk Storming |  Facilitation Consensus Workshop |
|---|---|---|---|---|
Purposedifferent | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When a group needs a solid decision without outvoting individual factions, a Consensus Workshop creates a negotiable common ground. It makes agreement, reservations, and open tensions discussable at the same time. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 15-45 min | Several meetings plus preparation and analysis; total effort depends on scope | 60-90 min | 1-3 h |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 4-12 | 5-30 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Venn Diagram, Overlap Notes, Differentiators | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Annotated Diagram, Prioritized Risk List, Action Backlog | Consensus Clusters, Theme Titles, Priority Areas |
Tagsno overlap | ComparisonFacilitationAlignment | ArchitectureQualityRiskTradeoffsStakeholders | RiskArchitectureWorkshopValidation | FacilitationConsensusWorkshopAlignment |