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Selected:Decision MatrixATAM (Architecture Tradeoff Analysis Method)Expectation MappingAlignment Mapping
| Criterion |  Decision Making Decision Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Expectation Mapping |  Facilitation Alignment Mapping |
|---|---|---|---|---|
Purposedifferent | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 1-2 h |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Decision Matrix, Scoring Rationale, Selected Option | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Expectation Map, Alignment Notes, Agreements | Alignment Map, Open Issues, Decision Questions |
Tagsno overlap | DecisionCriteriaScoringTradeoffs | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersTeam | AlignmentStakeholdersStrategyFacilitation |