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| Criterion |  Product Strategy DIBB |  Decision Making Delphi Method |  UX Research User Interviews |
|---|---|---|---|
Purposedifferent | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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. | 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. |
Complexitydifferent | Low | High | Low |
Timedifferent | 1-2 h | 1-4 Wochen | 30–60 min per interview |
Participantsdifferent | 2-8 | 6-30 Experten | 1 participant per interview |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | DIBB document, Belief list, Bet list, Learning report | Expert Forecast, Consensus Range, Assumption Notes | Interview Notes, Themes, Insight Summary |
Tagsno overlap | StrategyDecisionAssumptionsHypothesis | ForecastingExpertsDecisionStrategy | QualitativeResearchCustomerDiscovery |
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