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| Criterion |  UX Research Customer Journey Mapping |  Architecture C4 Model |  Architecture Request for Comments |
|---|---|---|---|
Purposedifferent | When a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 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 | Medium | Low | Medium |
Timedifferent | 2-4 h | 1-4 h | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 4-10 | 1-5 | 3-20 Reviewer |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | Context Diagram, Container Diagram, Component Diagram | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | JourneyServiceService design | ArchitectureCommunicationVisualization | ArchitectureDecisionAsyncGovernance |
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