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| Criterion |  Innovation TRIZ |  Product Discovery Problem Interview |  Product Discovery Experiment Canvas |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 1-4 h | 30-60 min je Interview | 30-60 min | 1-5 Tage |
Participantsdifferent | 2-8 | 5-12 Interviews | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Problem Evidence, Risk Notes, Customer Segments | Completed Experiment Canvas, Success Metric | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |