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| Criterion |  Systems Thinking CATWOE Analysis |  Operations Fishbone Diagram |  Architecture arc42 |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | Medium | Low | Low | High |
Timedifferent | 45-90 min | 30-60 min | 1-2 Tage | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-8 | 2-8 | 1-4 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Fishbone Diagram, Cause Categories, Investigation Backlog | Architecture Document, Context View, Runtime View, Deployment View | 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 thinkingFramingStakeholders | Root causeQualityOperations | ArchitectureDocumentationCommunication | ArchitectureQualityRiskTradeoffsStakeholders |