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| Criterion |  Innovation Reverse Brainstorming |  Innovation Lean Startup |  Product Discovery Assumption Mapping |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30-60 min | Wochen bis Monate je Lernzyklus | 45-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-12 | 2-8 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Reverse Ideas, Risk Themes, Solution Ideas | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Assumption map, Test backlog, Risk ranking | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | BrainstormingIdeationCreativityRisk | LeanStartupValidationMVP | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryAssumptions |