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Selected:Game DayATAM (Architecture Tradeoff Analysis Method)Failure Scenario AnalysisFailure Mode and Effects Analysis
| Criterion |  DevOps Game Day |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Engineering Failure Scenario Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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. | 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. |
Complexitydifferent | High | High | Medium | High |
Timedifferent | Halber Tag | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 h | 2-6 h |
Participantsdifferent | 5-20 | Evaluation team, architects, and relevant stakeholders | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ResilienceOperationsIncident | ArchitectureQualityRiskTradeoffsStakeholders | FailureResilienceRisk | RiskQualityOperationsRoot cause |