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| Criterion |  Innovation Double Diamond |  Innovation Crazy 8s |  Operations Root Cause Tree Analysis |  Innovation Rapid Ideation |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | Wochen bis Monate | 8-15 min | 1-3 h | 5-20 min |
Participantsdifferent | 3-12 | 1-10 | 2-8 | 1-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Sketch Set, Idea Shortlist, Direction Options | Cause Tree, Evidence Notes, Countermeasures | Ideenpool, Roh-Shortlist, Cluster |
Tagsno overlap | ProcessDivergenceInnovation | BrainstormingSketchingSpeedDivergenceDesign sprint | Root causeTreeIncidentQuality | BrainstormingIdeationDivergenceSpeed |