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| Criterion |  Systems Thinking Iceberg Model |  Architecture C4 Model |  Systems Thinking Current Reality Tree |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 30-60 min | 1-4 h | 2-6 h | 1-2 Tage |
Participantsdifferent | 2-10 | 1-5 | 3-8 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Context Diagram, Container Diagram, Component Diagram | Current Reality Tree, Core Problems, Intervention Ideas | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | Systems thinkingRoot causePatterns | ArchitectureCommunicationVisualization | Systems thinkingRoot causeConstraintsCausality | ArchitectureDocumentationCommunication |