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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Knowledge Modeling Concept Mapping |  Operations Fishbone Diagram |
|---|---|---|---|
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. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 h | 30-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | 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 | Concept Map, Relationship Labels, Knowledge Gaps | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | KnowledgeConceptsMappingSensemaking | Root causeQualityOperations |
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