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| Criterion |  Operations Barrier Analysis |  Operations 5 Whys |  Innovation Design Charrette |
|---|---|---|---|
Purposedifferent | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | Medium | Low | Medium |
Timedifferent | 2-4 h | 15-30 min | Halber Tag bis mehrere Tage |
Participantsdifferent | 2-6 | 2-6 | 10-50 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Root cause notes, Countermeasures | Sketches and Concepts, Consolidated Solution Sketch, Prioritized Direction |
Tagsno overlap | Root causeSafetyIncident | Root causeIncidentLeanProblem solving | BrainstormingWorkshopCollaborationIdeation |
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