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| Criterion |  Innovation Reverse Brainstorming |  Operations Fault Tree Analysis |  Innovation Rapid Ideation |
|---|---|---|---|
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. | 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. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. |
Complexitydifferent | Low | High | Low |
Timedifferent | 30-60 min | 2-6 h | 5-20 min |
Participantsdifferent | 3-12 | 3-8 | 1-20 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Reverse Ideas, Risk Themes, Solution Ideas | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Ideenpool, Roh-Shortlist, Cluster |
Tagsno overlap | BrainstormingIdeationCreativityRisk | RiskRoot causeSafety | BrainstormingIdeationDivergenceSpeed |
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