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| Criterion |  Operations Barrier Analysis |  Operations Root Cause Analysis |  Innovation Crazy 8s |
|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 2-4 h | 1-4 h | 8-15 min |
Participantsdifferent | 2-6 | 3-8 | 1-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Sketch Set, Idea Shortlist, Direction Options |
Tagsno overlap | Root causeSafetyIncident | Root causeProblem solvingQualityIncident | BrainstormingSketchingSpeedDivergenceDesign sprint |
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