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| Criterion |  Operations Fault Tree Analysis |  Innovation Brainstorming |  Innovation Morphological Analysis |  Innovation Lotus Blossom |
|---|---|---|---|---|
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 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 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. | When a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem. |
Complexitydifferent | High | Low | Medium | Low |
Timedifferent | 2-6 h | 30-60 min | 1-3 h | 45-90 min |
Participantsdifferent | 3-8 | 4-12 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Idea pool, Theme clusters, Shortlist | Morphological Box, Concept Combinations, Idea Shortlist | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | RiskRoot causeSafety | BrainstormingIdeationCreativityWorkshopDivergence | IdeationInnovationCreativity | BrainstormingIdeationCreativityDivergenceWorkshop |