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Selected:Failure Scenario AnalysisATAM (Architecture Tradeoff Analysis Method)Decision MatrixTrade-off Analysis
| Criterion |  Engineering Failure Scenario Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Decision Matrix |  Decision Making Trade-off Analysis |
|---|---|---|---|---|
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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 1-3 h | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 45-120 min |
Participantsdifferent | 3-8 | Evaluation team, architects, and relevant stakeholders | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
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 | Decision Matrix, Scoring Rationale, Selected Option | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tagsno overlap | FailureResilienceRisk | ArchitectureQualityRiskTradeoffsStakeholders | DecisionCriteriaScoringTradeoffs | TradeoffsDecisionCriteriaOptions |