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| Criterion |  Innovation Reverse Brainstorming |  Innovation Brainstorming |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | 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 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Low | Low | High |
Timedifferent | 30-60 min | 30-60 min | 2-6 h |
Participantsdifferent | 3-12 | 4-12 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Reverse Ideas, Risk Themes, Solution Ideas | Idea pool, Theme clusters, Shortlist | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityWorkshopDivergence | RiskRoot causeSafety |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
