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| Criterion |  Innovation Rapid Ideation |  Innovation Reverse Brainstorming |  Product Discovery Assumption Mapping |  Innovation Crazy 8s |
|---|---|---|---|---|
Purposedifferent | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 5-20 min | 30-60 min | 45-60 min | 8-15 min |
Participantsdifferent | 1-20 | 3-12 | 2-8 | 1-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Ideenpool, Roh-Shortlist, Cluster | Reverse Ideas, Risk Themes, Solution Ideas | Assumption map, Test backlog, Risk ranking | Sketch Set, Idea Shortlist, Direction Options |
Tagsno overlap | BrainstormingIdeationDivergenceSpeed | BrainstormingIdeationCreativityRisk | AssumptionsRiskExperimentsValidation | BrainstormingSketchingSpeedDivergenceDesign sprint |