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| Criterion |  UX Research User Interviews |  Operations Gemba Walk |  Operations Failure Mode and Effects 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Low | High |
Timedifferent | 30–60 min per interview | 30-120 min | 2-6 h |
Participantsdifferent | 1 participant per interview | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Observation Notes, Improvement Ideas | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | QualitativeResearchCustomerDiscovery | LeanObservationProcessOperations | RiskQualityOperationsRoot cause |
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