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Selected:ATAM (Architecture Tradeoff Analysis Method)Constraint AnalysisFailure Mode and Effects AnalysisPre-Mortem
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Constraint Analysis |  Operations Failure Mode and Effects Analysis |  Decision Making Pre-Mortem |
|---|---|---|---|---|
Purposedifferent | 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 an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 30-90 min | 2-6 h | 20–45 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-8 | 3-10 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | FMEA Table, Risk Priority, Mitigation Actions | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ConstraintsDecisionPlanningOptions | RiskQualityOperationsRoot cause | RiskDecisionFailurePlanning |