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| Criterion |  UX Research User Interviews |  Operations Kaizen Event |  Product Discovery Kano Model |  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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | 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 | Medium | Medium | Low |
Timedifferent | 30–60 min per interview | 0.5-5 Tage | 1-2 Tage | 30-60 min |
Participantsdifferent | 1 participant per interview | 4-10 | 10-50 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Kano Matrix, Feature Classes, Priority Themes | ABC Classification, Focus Rules, Control List |
Tagsno overlap | QualitativeResearchCustomerDiscovery | LeanContinuous improvementOperations | SatisfactionPrioritizationCustomer | PrioritizationOperationsPortfolio |