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| Criterion |  Operations 5 Whys |  UX Research User Interviews |
|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitysame | Low | Low |
Timedifferent | 15-30 min | 30–60 min per interview |
Participantsdifferent | 2-6 | 1 participant per interview |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Interview Notes, Themes, Insight Summary |
Tagsno overlap | Root causeIncidentLeanProblem solving | QualitativeResearchCustomerDiscovery |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
