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| Criterion |  UX Research Usability Testing |  Innovation Design Sprint |  Innovation Crazy 8s |  Innovation Double Diamond |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 1-2 h je Session | 4-5 Tage | 8-15 min | Wochen bis Monate |
Participantsdifferent | Based on research question | 5-8 | 1-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Prototype, Test Findings, Decision Rationale | Sketch Set, Idea Shortlist, Direction Options | Problem Statement, Solution Options, Prototypes, Deliverables per Phase |
Tagsno overlap | ValidationUXPrototype | Design sprintPrototypeValidationInnovation | BrainstormingSketchingSpeedDivergenceDesign sprint | ProcessDivergenceInnovation |