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| Criterion |  UX Research Customer Journey Mapping |  UX Research Affinity Diagramming |  Architecture C4 Model |
|---|---|---|---|
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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 | Medium | Low | Low |
Timedifferent | 2-4 h | 45–90 min | 1-4 h |
Participantsdifferent | 4-10 | 3-10 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Journey Map, Pain-point List, Opportunity Backlog | Theme clusters, Insight statements, Opportunity areas | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | JourneyServiceService design | SynthesisQualitativeRoot cause | ArchitectureCommunicationVisualization |
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