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| Criterion |  Operations Barrier Analysis |  UX Research User Interviews |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 2-4 h | 30–60 min per interview | 45-90 min |
Participantsdifferent | 2-6 | 1 participant per interview | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Interview Notes, Themes, Insight Summary | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Root causeSafetyIncident | QualitativeResearchCustomerDiscovery | LeanProblem solvingCoachingOperations |
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