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| Criterion |  UX Research User Interviews |  Systems Thinking Current Reality Tree |  Decision Making Assumption Surfacing |
|---|---|---|---|
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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | High | Low |
Timedifferent | 30–60 min per interview | 2-6 h | 45-90 min |
Participantsdifferent | 1 participant per interview | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Current Reality Tree, Core Problems, Intervention Ideas | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Systems thinkingRoot causeConstraintsCausality | AssumptionsRiskDecisionDiscovery |
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