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| Criterion |  Product Strategy Lean Canvas |  Innovation Crazy 8s |  Innovation Brainwriting |  Innovation 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 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 loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 8-15 min | 15-30 min | 30-60 min |
Participantsdifferent | 1-6 | 1-10 | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Sketch Set, Idea Shortlist, Direction Options | Idea sheets, Expanded concepts, Prioritized list | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | StartupLeanAssumptionsBusiness model | BrainstormingSketchingSpeedDivergenceDesign sprint | BrainstormingCollaborationInclusionIdeas | BrainstormingIdeationCreativityWorkshopDivergence |