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| Criterion |  Innovation Crazy 8s |  Product Discovery Assumption Mapping |  Innovation Reverse Brainstorming |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. | 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 | Low | Medium |
Timedifferent | 8-15 min | 45-60 min | 30-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 1-10 | 2-8 | 3-12 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Assumption map, Test backlog, Risk ranking | Reverse Ideas, Risk Themes, Solution Ideas | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | AssumptionsRiskExperimentsValidation | BrainstormingIdeationCreativityRisk | ExperimentsValidationDiscoveryAssumptions |