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| Criterion |  UX Research Card Sorting |  Innovation Design Sprint |  Product Strategy Lean Canvas |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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 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 an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 20-45 min | 4-5 Tage | 45-90 min | 45-60 min |
Participantsdifferent | Based on research question | 5-8 | 1-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Prototype, Test Findings, Decision Rationale | Lean Canvas, Core Assumptions, Experiment Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Information architectureNavigationStructure | Design sprintPrototypeValidationInnovation | StartupLeanAssumptionsBusiness model | AssumptionsRiskExperimentsValidation |