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| Criterion |  UX Research User Interviews |  Architecture Request for Comments |  Decision Making Argument Mapping |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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 | Low | Medium | Medium | Low |
Timedifferent | 30–60 min per interview | 1-3 Wochen vom Draft bis zur Entscheidung | 1-3 h | 15-45 min |
Participantsdifferent | 1 participant per interview | 3-20 Reviewer | 1-8 | 1-3 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Argument Map, Evidence Gaps, Decision Rationale | ADR File, Decision Log, Rationale |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ArchitectureDecisionAsyncGovernance | SensemakingDecisionRationale | ArchitectureRationaleDocumentationGovernance |