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Selected:Fault Tree AnalysisATAM (Architecture Tradeoff Analysis Method)Stakeholder MappingFailure Mode and Effects Analysis
| Criterion |  Operations Fault Tree Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Stakeholder Mapping |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 an initiative depends on many people, interests, and power dynamics, Stakeholder Mapping systematically orders the environment. It shows who influences, who is affected, and where relationship management or safeguarding matters first. | 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. |
Complexitydifferent | High | High | Low | High |
Timedifferent | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope | 60–90 min | 2-6 h |
Participantsdifferent | 3-8 | Evaluation team, architects, and relevant stakeholders | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Stakeholder Map, Engagement Plan, Risk Notes | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | RiskRoot causeSafety | ArchitectureQualityRiskTradeoffsStakeholders | StakeholdersAlignmentFacilitationChange | RiskQualityOperationsRoot cause |