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Selected:ATAM (Architecture Tradeoff Analysis Method)Expectation MappingFailure Mode and Effects AnalysisAlignment Mapping
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Expectation Mapping |  Operations Failure Mode and Effects Analysis |  Facilitation Alignment Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | High | Low | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 2-6 h | 1-2 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-12 | 3-10 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | 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 | FMEA Table, Risk Priority, Mitigation Actions | Alignment Map, Open Issues, Decision Questions |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersTeam | RiskQualityOperationsRoot cause | AlignmentStakeholdersStrategyFacilitation |