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| Criterion |  Operations Root Cause Tree Analysis |  Innovation Crazy 8s |  UX Design Design Studio |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 8-15 min | 1-3 h |
Participantsdifferent | 2-8 | 1-10 | 3-8 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Sketch Set, Idea Shortlist, Direction Options | Sketches, Concept Directions, Design Decisions |
Tagsno overlap | Root causeTreeIncidentQuality | BrainstormingSketchingSpeedDivergenceDesign sprint | SketchingCollaborationIdeation |
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