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Selected:Scatter DiagramFault Tree AnalysisFishbone DiagramATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations Scatter Diagram |  Operations Fault Tree Analysis |  Operations Fishbone Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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 | Low | High | Low | High |
Timedifferent | 30-90 min | 2-6 h | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-4 | 3-8 | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Fishbone Diagram, Cause Categories, Investigation Backlog | 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 | Root causeQualityVisualization | RiskRoot causeSafety | Root causeQualityOperations | ArchitectureQualityRiskTradeoffsStakeholders |