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| Criterion |  Operations Fault Tree Analysis |  Innovation Morphological Analysis |  Innovation Rolestorming |  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. | 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 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. | 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 | Medium | Low | Low |
Timedifferent | 2-6 h | 1-3 h | 30-60 min | 45-90 min |
Participantsdifferent | 3-8 | 2-8 | 3-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Morphological Box, Concept Combinations, Idea Shortlist | Rollenkarten, Ideenpool pro Rolle, Konsolidierte Shortlist | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | RiskRoot causeSafety | IdeationInnovationCreativity | BrainstormingIdeationCreativity | BrainstormingIdeationCreativityDivergenceWorkshop |