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Selected:Failure Scenario AnalysisFailure Mode and Effects AnalysisPareto AnalysisATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Engineering Failure Scenario Analysis |  Operations Failure Mode and Effects Analysis |  Decision Making Pareto Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
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. | 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. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. | 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 | Medium | High | Low | High |
Timedifferent | 1-3 h | 2-6 h | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-8 | 3-10 | 1-6 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | FMEA Table, Risk Priority, Mitigation Actions | Pareto Chart, Top Causes, Focus 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 | FailureResilienceRisk | RiskQualityOperationsRoot cause | PrioritizationQualityFocusRoot cause | ArchitectureQualityRiskTradeoffsStakeholders |