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| Criterion |  UX Research User Interviews |  Operations Ivy Lee Method |  Operations A3 Problem Solving |  Operations ABC 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 5-10 min daily | 45-90 min | 30-60 min |
Participantsdifferent | 1 participant per interview | 1 | 2-5 | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Daily Priority List, Completion Notes | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List |
Tagsno overlap | QualitativeResearchCustomerDiscovery | PrioritizationProductivityExecution | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio |