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Selected:Soft Systems MethodologyC4 ModelATAM (Architecture Tradeoff Analysis Method)Architecture Communication Canvas
| Criterion |  Systems Thinking Soft Systems Methodology |  Architecture C4 Model |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 0.5-3 Tage | 1-4 h | Several meetings plus preparation and analysis; total effort depends on scope | 60-120 min |
Participantsdifferent | 5-15 | 1-5 | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Context Diagram, Container Diagram, Component Diagram | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ArchitectureCommunicationVisualization | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureCommunicationStakeholdersCanvas |