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| Criterion |  Systems Thinking Soft Systems Methodology |  Systems Thinking Rich Picture |  Architecture Software Architecture Canvas |  Architecture C4 Model |
|---|---|---|---|---|
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. | A Rich Picture brings an unclear situation onto a shared drawing. It captures actors, tensions, information flows, and blind spots before the team jumps to solutions too early. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 0.5-3 Tage | 30-90 min | 1-2 h | 1-4 h |
Participantsdifferent | 5-15 | 2-10 | 3-10 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Rich Picture, Problem Framing Notes | Architecture Canvas, Goals, Constraints, Quality Attributes | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | Systems thinkingSoft systemsFramingVisualization | CanvasArchitectureAlignmentWorkshop | ArchitectureCommunicationVisualization |