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| Criterion |  Operations Change Analysis |  UX Research User Interviews |  Domain Modeling EventStorming |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-120 min | 30–60 min per interview | 2-8 h | 30-60 min je Interview |
Participantsdifferent | 2-6 | 1 participant per interview | 5-12 | 5-12 Interviews |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Interview Notes, Themes, Insight Summary | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | QualitativeResearchCustomerDiscovery | Domain-Driven DesignEventsDiscoveryWorkshop | DiscoveryInterviewsOpportunityCustomer |