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| Criterion |  Innovation Double Diamond |  UX Research Card Sorting |  UX Research Tree Testing |  Innovation Brainstorming |
|---|---|---|---|---|
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 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. | 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 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 | Medium | Low | Medium | Low |
Timedifferent | Wochen bis Monate | 20-45 min | 1-2 Tage | 30-60 min |
Participantsdifferent | 3-12 | Based on research question | Based on research question | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | ProcessDivergenceInnovation | Information architectureNavigationStructure | Information architectureNavigationFindability | BrainstormingIdeationCreativityWorkshopDivergence |