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| Criterion |  Systems Thinking Future Reality Tree |  Product Discovery Solution Interview |  Product Discovery Problem Interview |  Systems Thinking Evaporating Cloud |
|---|---|---|---|---|
Purposedifferent | 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 a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 | High | Medium | Medium | Medium |
Timedifferent | 2-4 h | 30-60 min je Interview | 30-60 min je Interview | 60-120 min |
Participantsdifferent | 3-8 | 5-10 Interviews | 5-12 Interviews | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Solution Feedback, Objection List, Validation Notes | Problem Evidence, Risk Notes, Customer Segments | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | ValidationInterviewsPrototype | DiscoveryInterviewsValidation | Theory of ConstraintsAssumptionsSystems thinking |