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| Criterion |  Product Discovery Solution Interview |  Product Discovery Problem Interview |  Business Strategy Blue Ocean Strategy Canvas |  Business Strategy Business Model Canvas |
|---|---|---|---|---|
Purposedifferent | 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 Blue Ocean Strategy Canvas shows how an offering is positioned relative to the market. Differentiation thereby becomes tangible in value factors instead of merely being claimed. | The Business Model Canvas condenses a business model to its key building blocks and assumptions. It makes variants quickly comparable and reveals gaps before validation or implementation begins. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 30-60 min je Interview | 2-4 h | 1-2 h |
Participantsdifferent | 5-10 Interviews | 5-12 Interviews | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Problem Evidence, Risk Notes, Customer Segments | Strategy Canvas, Value Curve, ERRC Actions | Business Model Canvas, Assumption List, Business Hypotheses |
Tagsno overlap | ValidationInterviewsPrototype | DiscoveryInterviewsValidation | StrategyPositioningInnovationValue | Business modelStrategyValueInnovation |