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| Criterion |  Operations Fault Tree Analysis |  UX Design Design Studio |  Innovation Reverse Brainstorming |  Innovation Design Charrette |
|---|---|---|---|---|
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 several designs need to be quickly put in relation to each other, it makes ideas visible and comparable. It encourages early variants instead of long upfront debates. | 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. | 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. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 2-6 h | 1-3 h | 30-60 min | Halber Tag bis mehrere Tage |
Participantsdifferent | 3-8 | 3-8 | 3-12 | 10-50 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Sketches, Concept Directions, Design Decisions | Reverse Ideas, Risk Themes, Solution Ideas | Sketches and Concepts, Consolidated Solution Sketch, Prioritized Direction |
Tagsno overlap | RiskRoot causeSafety | SketchingCollaborationIdeation | BrainstormingIdeationCreativityRisk | BrainstormingWorkshopCollaborationIdeation |