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Selected:Failure Scenario AnalysisATAM (Architecture Tradeoff Analysis Method)Assumption MappingRisk Storming
| Criterion |  Engineering Failure Scenario Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Assumption Mapping |  Architecture Risk Storming |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 h | Several meetings plus preparation and analysis; total effort depends on scope | 45-60 min | 60-90 min |
Participantsdifferent | 3-8 | Evaluation team, architects, and relevant stakeholders | 2-8 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption map, Test backlog, Risk ranking | Annotated Diagram, Prioritized Risk List, Action Backlog |
Tags1 shared | FailureResilienceRisk | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskExperimentsValidation | RiskArchitectureWorkshopValidation |