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| Criterion |  Knowledge Modeling IBIS |  Innovation Reverse Brainstorming |  Innovation Round Robin Brainstorming |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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. | 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 | 1-3 h | 30-60 min | 20-45 min | 30-60 min |
Participantsdifferent | 2-8 | 3-12 | 4-10 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Reverse Ideas, Risk Themes, Solution Ideas | Idea List, Cluster, Shortlist | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | RationaleKnowledgeDecision | BrainstormingIdeationCreativityRisk | BrainstormingIdeationFacilitationInclusionCreativity | BrainstormingIdeationCreativityWorkshopDivergence |