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Selected:ATAM (Architecture Tradeoff Analysis Method)Change AnalysisKnowledge MappingFailure Mode and Effects Analysis
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Change Analysis |  Knowledge Modeling Knowledge Mapping |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | 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 | Medium | Medium | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-120 min | 1-3 h | 2-6 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-6 | 3-12 | 3-10 |
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 | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Knowledge Map, Critical Knowledge Areas, Transfer Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ChangeRoot causeTroubleshootingComparison | KnowledgeMappingRisk | RiskQualityOperationsRoot cause |