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| Criterion |  Product Strategy Lean Canvas |  Innovation Round Robin Brainstorming |  Innovation Reverse Brainstorming |
|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | With unevenly distributed speaking time, the method brings every person into the contribution one after another. It prevents early voices from setting the direction while still producing a shared idea space. This makes participation plannable and the team's diversity visible. | 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 45-90 min | 20-45 min | 30-60 min |
Participantsdifferent | 1-6 | 4-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Idea List, Cluster, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | StartupLeanAssumptionsBusiness model | BrainstormingIdeationFacilitationInclusionCreativity | BrainstormingIdeationCreativityRisk |
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