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| Criterion |  Product Discovery Opportunity Interview |  Systems Thinking Future Reality Tree |  Product Discovery Problem Interview |  Systems Thinking Evaporating Cloud |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-60 min je Interview | 2-4 h | 30-60 min je Interview | 60-120 min |
Participantsdifferent | 5-12 Interviews | 3-8 | 5-12 Interviews | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Problem Evidence, Risk Notes, Customer Segments | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | Theory of ConstraintsSystems thinkingChange | DiscoveryInterviewsValidation | Theory of ConstraintsAssumptionsSystems thinking |