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| Criterion |  Product Discovery Problem Interview |  Operations Fishbone Diagram |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-60 min je Interview | 30-60 min | 45-60 min |
Participantsdifferent | 5-12 Interviews | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Fishbone Diagram, Cause Categories, Investigation Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | DiscoveryInterviewsValidation | Root causeQualityOperations | AssumptionsRiskExperimentsValidation |
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