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| Criterion |  Operations Root Cause Analysis |  Innovation Crazy 8s |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-4 h | 8-15 min | 1-3 h |
Participantsdifferent | 3-8 | 1-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Sketch Set, Idea Shortlist, Direction Options | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | Root causeProblem solvingQualityIncident | BrainstormingSketchingSpeedDivergenceDesign sprint | Root causeTreeIncidentQuality |
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