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| Criterion |  UX Research User Interviews |  Decision Making Delphi Method |  Decision Making Trade-off Analysis |
|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 45-120 min |
Participantsdifferent | 1 participant per interview | 6-30 Experten | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Expert Forecast, Consensus Range, Assumption Notes | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ForecastingExpertsDecisionStrategy | TradeoffsDecisionCriteriaOptions |
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