View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Barrier AnalysisATAM (Architecture Tradeoff Analysis Method)Failure Mode and Effects AnalysisFault Tree Analysis
| Criterion |  Operations Barrier Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Failure Mode and Effects Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 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. | 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 | Medium | High | High | High |
Timedifferent | 2-4 h | Several meetings plus preparation and analysis; total effort depends on scope | 2-6 h | 2-6 h |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | FMEA Table, Risk Priority, Mitigation Actions | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | Root causeSafetyIncident | ArchitectureQualityRiskTradeoffsStakeholders | RiskQualityOperationsRoot cause | RiskRoot causeSafety |