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| Criterion |  Systems Thinking Rich Picture |  Architecture C4 Model |  Architecture Architecture Decision Record |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | 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 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-90 min | 1-4 h | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-10 | 1-5 | 1-3 | 3-20 Reviewer |
Formatdifferent | Workshop | Workshop + async | Async | Async |
Outputdifferent | Rich Picture, Problem Framing Notes | Context Diagram, Container Diagram, Component Diagram | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | Systems thinkingSoft systemsFramingVisualization | ArchitectureCommunicationVisualization | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance |