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| Criterion |  Product Discovery Problem Interview |  Business Strategy Business Model Stress Test |  Product Discovery Solution Interview |  Business Strategy Value Chain Analysis |
|---|---|---|---|---|
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. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. | 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. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. |
Complexitydifferent | Medium | High | Medium | High |
Timedifferent | 30-60 min je Interview | Half day | 30-60 min je Interview | Half day |
Participantsdifferent | 5-12 Interviews | 3-8 | 5-10 Interviews | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Stress Test Report, Action Plan per Scenario | Solution Feedback, Objection List, Validation Notes | Value Chain Map, Lever List |
Tagsno overlap | DiscoveryInterviewsValidation | StrategyBusiness modelRiskDiagnosis | ValidationInterviewsPrototype | StrategyBusiness modelDiagnosisAnalysis |