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| Criterion |  UX Research User Interviews |  Decision Making Decision Matrix |  Decision Making Decision Tree |
|---|---|---|---|
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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 45-90 min | 30-90 min |
Participantsdifferent | 1 participant per interview | 2-8 | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Decision Matrix, Scoring Rationale, Selected Option | Decision Tree, Option Map, Assumption List |
Tagsno overlap | QualitativeResearchCustomerDiscovery | DecisionCriteriaScoringTradeoffs | DecisionTreeOptions |
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