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Selected:Nominal Group TechniqueATAM (Architecture Tradeoff Analysis Method)Alignment MappingDot Voting
| Criterion |  Facilitation Nominal Group Technique |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Alignment Mapping |  Facilitation Dot Voting |
|---|---|---|---|---|
Purposedifferent | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | 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 several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. | When a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 60-120 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 h | 5-15 min |
Participantsdifferent | 5-12 | Evaluation team, architects, and relevant stakeholders | 4-12 | 3-20 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Ranked Ideas, Clarified Options, Group Priority | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Alignment Map, Open Issues, Decision Questions | Ranked list, Consensus signal, Shortlist |
Tagsno overlap | FacilitationPrioritizationVotingInclusion | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersStrategyFacilitation | FacilitationVotingConsensusPrioritization |