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| Criterion |  Innovation Crazy 8s |  Operations Root Cause Tree Analysis |  Innovation Rapid Ideation |  Innovation Brainstorming |
|---|---|---|---|---|
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 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. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 8-15 min | 1-3 h | 5-20 min | 30-60 min |
Participantsdifferent | 1-10 | 2-8 | 1-20 | 4-12 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Cause Tree, Evidence Notes, Countermeasures | Ideenpool, Roh-Shortlist, Cluster | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | Root causeTreeIncidentQuality | BrainstormingIdeationDivergenceSpeed | BrainstormingIdeationCreativityWorkshopDivergence |