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| Criterion |  Architecture Architecture Decision Record |  Knowledge Modeling Event Modeling |  UX Research Affinity Diagramming |
|---|---|---|---|
Purposedifferent | 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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-45 min | 2-6 h | 45–90 min |
Participantsdifferent | 1-3 | 2-8 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Event Model, UI Flow, Commands, Read Models | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | EventsBlueprintDomain-Driven DesignBehavior | SynthesisQualitativeRoot cause |
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