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| Criterion |  Product Discovery Solution Interview |  Architecture arc42 |  UX Research Affinity Diagramming |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 45–90 min | 15-45 min |
Participantsdifferent | 5-10 Interviews | 1-4 | 3-10 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Architecture Document, Context View, Runtime View, Deployment View | Theme clusters, Insight statements, Opportunity areas | ADR File, Decision Log, Rationale |
Tagsno overlap | ValidationInterviewsPrototype | ArchitectureDocumentationCommunication | SynthesisQualitativeRoot cause | ArchitectureRationaleDocumentationGovernance |