View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Expectation MappingATAM (Architecture Tradeoff Analysis Method)MORT AnalysisFault Tree Analysis
| Criterion |  Facilitation Expectation Mapping |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations MORT Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitydifferent | Low | High | High | High |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 2-6 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Expectation Map, Alignment Notes, Agreements | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | AlignmentStakeholdersTeam | ArchitectureQualityRiskTradeoffsStakeholders | Root causeSafetySystemicIncident | RiskRoot causeSafety |