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| Criterion |  Product Discovery Problem Interview |  Agile 4Ls Retrospective |  Agile Mad Sad Glad |  Product Discovery Learning Card |
|---|---|---|---|---|
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 sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | When a team's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 30-60 min je Interview | 45–75 min | 30-60 min | 25-40 min |
Participantsdifferent | 5-12 Interviews | Team members involved | 3-10 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | 4Ls Board, Learning Themes, Improvement Actions | Emotion Board, Themes, Action Items | Learning Card with evidence and next action |
Tagsno overlap | DiscoveryInterviewsValidation | RetrospectiveLearningReflectionTeam | RetrospectiveTeamReflection | ExperimentsValidationDiscoveryLearning |