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| Criterion |  Innovation Design Thinking |  Product Discovery Solution Interview |  Innovation Contradiction Analysis |  Product Discovery Problem Interview |
|---|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | 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. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 60-120 min | 30-60 min je Interview |
Participantsdifferent | 4-10 | 5-10 Interviews | 2-8 | 5-12 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Solution Feedback, Objection List, Validation Notes | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | InnovationPrototypeResearch | ValidationInterviewsPrototype | ContradictionsInnovationProblem solving | DiscoveryInterviewsValidation |