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| Criterion |  Product Discovery Problem Interview |  Innovation Brainwriting |  Product Discovery MVP Test Matrix |  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 loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-60 min je Interview | 15-30 min | 45-75 min | 25-40 min |
Participantsdifferent | 5-12 Interviews | 3-12 | 2-8 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Idea sheets, Expanded concepts, Prioritized list | Test Matrix, Test Plan | Learning Card with evidence and next action |
Tagsno overlap | DiscoveryInterviewsValidation | BrainstormingCollaborationInclusionIdeas | ExperimentsValidationDiscoveryOptions | ExperimentsValidationDiscoveryLearning |