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| Criterion |  Innovation Double Diamond |  UX Research Tree Testing |  Innovation Design Sprint |  Innovation Crazy 8s |
|---|---|---|---|---|
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. | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 | High | Low |
Timedifferent | Wochen bis Monate | 1-2 Tage | 4-5 Tage | 8-15 min |
Participantsdifferent | 3-12 | Based on research question | 5-8 | 1-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Findability Metrics, Path Analysis, Revised IA | Prototype, Test Findings, Decision Rationale | Sketch Set, Idea Shortlist, Direction Options |
Tagsno overlap | ProcessDivergenceInnovation | Information architectureNavigationFindability | Design sprintPrototypeValidationInnovation | BrainstormingSketchingSpeedDivergenceDesign sprint |