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Selected:Expectation MappingFault Tree AnalysisROAM BoardATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Facilitation Expectation Mapping |  Operations Fault Tree Analysis |  Agile ROAM Board |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
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. | 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. | When work needs to move between different states or columns, it makes that movement and its handoffs legible. It sorts work by value, risk, and delivery ability. The result is captured as a ROAM Board and an Owner List. | 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. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 45-90 min | 2-6 h | 20-40 min initial, dann laufend | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-12 | 3-8 | 3-15 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Expectation Map, Alignment Notes, Agreements | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | ROAM Board, Owner List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | AlignmentStakeholdersTeam | RiskRoot causeSafety | RiskAgileTrackingAlignment | ArchitectureQualityRiskTradeoffsStakeholders |