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| Criterion |  Operations Fault Tree Analysis |  Innovation Rolestorming |  Innovation SCAMPER |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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 search for ideas stalls, switching roles helps people step outside their own perspective and activate new logics of action. The method reduces habit because contributions arise from a different stance. This brings unfamiliar, often fitting solution approaches into play. | For an existing solution under pressure to change, the method deliberately opens space for systematic variants. It directs attention to rebuilding, combining, and repurposing rather than only new basic ideas. This produces concrete evolution paths for products, offerings, or workflows. | 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. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 2-6 h | 30-60 min | 30-60 min | 30-60 min |
Participantsdifferent | 3-8 | 3-12 | 2-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Rollenkarten, Ideenpool pro Rolle, Konsolidierte Shortlist | SCAMPER Idea List, Concept Shortlist, Variation Notes | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | RiskRoot causeSafety | BrainstormingIdeationCreativity | BrainstormingIdeationCreativityReframingInnovation | BrainstormingIdeationCreativityRisk |