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| Criterion |  Product Discovery Opportunity Interview |  Operations Root Cause Analysis |  UX Research Affinity Diagramming |  UX Research User Interviews |
|---|---|---|---|---|
Purposedifferent | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 | Medium | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 1-4 h | 45–90 min | 30–60 min per interview |
Participantsdifferent | 5-12 Interviews | 3-8 | 3-10 | 1 participant per interview |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Theme clusters, Insight statements, Opportunity areas | Interview Notes, Themes, Insight Summary |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | Root causeProblem solvingQualityIncident | SynthesisQualitativeRoot cause | QualitativeResearchCustomerDiscovery |