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| Criterion |  Operations Fault Tree Analysis |  Innovation Design Charrette |  Operations Barrier 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. | In a tightly timed design process with many participants, the method pools several lines of thinking in a short time. It brings parallel design energy without letting the discussion tip into endless coordination. This quickly produces solid directions for architecture or space. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 | Medium | Low |
Timedifferent | 2-6 h | Halber Tag bis mehrere Tage | 2-4 h | 45-90 min |
Participantsdifferent | 3-8 | 10-50 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Sketches and Concepts, Consolidated Solution Sketch, Prioritized Direction | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | RiskRoot causeSafety | BrainstormingWorkshopCollaborationIdeation | Root causeSafetyIncident | BrainstormingIdeationCreativityDivergenceWorkshop |