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Selected:Failure Scenario AnalysisA3 Problem SolvingArchitecture Decision RecordATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Engineering Failure Scenario Analysis |  Operations A3 Problem Solving |  Architecture Architecture Decision Record |  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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 | Medium | Low | High |
Timedifferent | 1-3 h | 45-90 min | 15-45 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-8 | 2-5 | 1-3 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | A3 Report, Action Plan, Root Cause Analysis | ADR File, Decision Log, Rationale | 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 | LeanProblem solvingCoachingOperations | ArchitectureRationaleDocumentationGovernance | ArchitectureQualityRiskTradeoffsStakeholders |