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Selected:Scatter DiagramATAM (Architecture Tradeoff Analysis Method)Change AnalysisFailure Mode and Effects Analysis
| Criterion |  Operations Scatter Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Change Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | 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. | 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 | Low | High | Medium | High |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 45-120 min | 2-6 h |
Participantsdifferent | 1-4 | Evaluation team, architects, and relevant stakeholders | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | 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 | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeQualityVisualization | ArchitectureQualityRiskTradeoffsStakeholders | ChangeRoot causeTroubleshootingComparison | RiskQualityOperationsRoot cause |