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| Criterion |  Operations Kaizen Event |  UX Research User Interviews |  Product Discovery Opportunity Interview |  Operations PDCA Cycle |
|---|---|---|---|---|
Purposedifferent | 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 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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 0.5-5 Tage | 30–60 min per interview | 30-60 min je Interview | 1 h bis mehrere Wochen |
Participantsdifferent | 4-10 | 1 participant per interview | 5-12 Interviews | 1-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes | PDCA Log, Experiment Plan, Learning Outcome, Standard Change |
Tagsno overlap | LeanContinuous improvementOperations | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer | Continuous improvementLeanExperiments |