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| Criterion |  UX Research User Interviews |  Decision Making Pre-Mortem |  Architecture arc42 |
|---|---|---|---|
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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30–60 min per interview | 20–45 min | 1-2 Tage |
Participantsdifferent | 1 participant per interview | Small cross-functional group | 1-4 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Risk list, Mitigation plan, Assumption log | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | QualitativeResearchCustomerDiscovery | RiskDecisionFailurePlanning | ArchitectureDocumentationCommunication |
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