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| Criterion |  Innovation TRIZ |  Product Discovery Smoke Test |  Innovation Contradiction Analysis |  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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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 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 | Low | Medium | Medium |
Timedifferent | 1-4 h | 1-5 Tage | 60-120 min | 1-5 Tage |
Participantsdifferent | 2-8 | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Interest Metrics, Conversion Signal, Learning Note | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | ValidationExperimentsDemandGrowth | ContradictionsInnovationProblem solving | ValidationExperimentsDemandDiscovery |