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| Criterion |  Product Discovery Opportunity Interview |  Product Discovery Problem Interview |  Agile Start Stop Continue |  Agile Starfish Retrospective |
|---|---|---|---|---|
Purposedifferent | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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 team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 30-60 min je Interview | 30-60 min | 45-90 min |
Participantsdifferent | 5-12 Interviews | 5-12 Interviews | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Interview Notes, Opportunity Themes, Customer Quotes | Problem Evidence, Risk Notes, Customer Segments | Start Stop Continue Board, Improvement Actions | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | DiscoveryInterviewsOpportunityCustomer | DiscoveryInterviewsValidation | RetrospectiveImprovementTeamReflection | RetrospectiveImprovementExperimentsTeam |