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| Criterion |  Innovation Lean Startup |  Product Strategy Lean Canvas |  Innovation Reverse Brainstorming |  Innovation Lotus Blossom |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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 a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 45-90 min | 30-60 min | 45-90 min |
Participantsdifferent | 2-8 | 1-6 | 3-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Lean Canvas, Core Assumptions, Experiment Backlog | Reverse Ideas, Risk Themes, Solution Ideas | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | LeanStartupValidationMVP | StartupLeanAssumptionsBusiness model | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityDivergenceWorkshop |