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| Criterion |  Innovation Crazy 8s |  Operations Causal Factor Analysis |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 8-15 min | 2-6 h | 2-4 h |
Participantsdifferent | 1-10 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident |
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