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| Criterion |  UX Research User Interviews |  Systems Thinking Future Reality Tree |  Systems Thinking Evaporating Cloud |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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 | Low | High | Medium | Medium |
Timedifferent | 30–60 min per interview | 2-4 h | 60-120 min | 30-60 min je Interview |
Participantsdifferent | 1 participant per interview | 3-8 | 2-8 | 5-12 Interviews |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Theory of ConstraintsSystems thinkingChange | Theory of ConstraintsAssumptionsSystems thinking | DiscoveryInterviewsOpportunityCustomer |