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| Criterion |  Decision Making Pareto Analysis |  UX Research User Interviews |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. | 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. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-60 min | 30–60 min per interview | 15-30 min |
Participantsdifferent | 1-6 | 1 participant per interview | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Pareto Chart, Top Causes, Focus List | Interview Notes, Themes, Insight Summary | Root cause notes, Countermeasures |
Tagsno overlap | PrioritizationQualityFocusRoot cause | QualitativeResearchCustomerDiscovery | Root causeIncidentLeanProblem solving |
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