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| Criterion |  Innovation TRIZ |  Product Discovery Experiment Canvas |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 1-4 h | 30-60 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-8 | 1-5 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Completed Experiment Canvas, Success Metric | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |