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| Criterion |  Product Discovery Solution Interview |  Decision Making Risk Matrix |  Product Discovery Problem Interview |  Delivery Cost of Delay |
|---|---|---|---|---|
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 a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-60 min je Interview | 30-60 min | 30-60 min je Interview | 90-180 min |
Participantsdifferent | 5-10 Interviews | 3-10 | 5-12 Interviews | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Risk Matrix, Top Risk List | Problem Evidence, Risk Notes, Customer Segments | CoD Table, Prioritization Sequence |
Tagsno overlap | ValidationInterviewsPrototype | RiskDecisionPrioritizationAssessment | DiscoveryInterviewsValidation | PrioritizationDeliveryEconomicsDecision |