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| Criterion |  UX Research User Interviews |  Knowledge Modeling Event Modeling |  Operations Kaizen Event |  Operations A3 Problem Solving |
|---|---|---|---|---|
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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min per interview | 2-6 h | 0.5-5 Tage | 45-90 min |
Participantsdifferent | 1 participant per interview | 2-8 | 4-10 | 2-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Event Model, UI Flow, Commands, Read Models | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | QualitativeResearchCustomerDiscovery | EventsBlueprintDomain-Driven DesignBehavior | LeanContinuous improvementOperations | LeanProblem solvingCoachingOperations |