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| Criterion |  Operations Fault Tree Analysis |  Innovation Reverse Brainstorming |  Innovation SCAMPER |  Innovation Morphological Analysis |
|---|---|---|---|---|
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. | 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 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 a search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | 2-6 h | 30-60 min | 30-60 min | 1-3 h |
Participantsdifferent | 3-8 | 3-12 | 2-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Reverse Ideas, Risk Themes, Solution Ideas | SCAMPER Idea List, Concept Shortlist, Variation Notes | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | RiskRoot causeSafety | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityReframingInnovation | IdeationInnovationCreativity |