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| Criterion |  Innovation Double Diamond |  Innovation Design Sprint |  UX Research Card Sorting |
|---|---|---|---|
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 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. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. |
Complexitydifferent | Medium | High | Low |
Timedifferent | Wochen bis Monate | 4-5 Tage | 20-45 min |
Participantsdifferent | 3-12 | 5-8 | Based on research question |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Prototype, Test Findings, Decision Rationale | Content groups, Label set, IA hypotheses |
Tagsno overlap | ProcessDivergenceInnovation | Design sprintPrototypeValidationInnovation | Information architectureNavigationStructure |
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