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| Criterion |  Operations Visual Management |  UX Research User Interviews |  Operations 5 Whys |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | Ongoing | 30–60 min per interview | 15-30 min | 2-8 h |
Participantsdifferent | 1-20 | 1 participant per interview | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | Interview Notes, Themes, Insight Summary | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | SignalsOperationsVisual management | QualitativeResearchCustomerDiscovery | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations |