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| Criterion |  Systems Thinking Behavior Over Time Graph |  Operations Fishbone Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|
Purposedifferent | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. | 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 | Low | High |
Timedifferent | 20-45 min | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-10 | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Behavior Over Time Graph, Trend Hypotheses, Key Events | 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 | Systems thinkingPatternsDynamics | Root causeQualityOperations | ArchitectureQualityRiskTradeoffsStakeholders |
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