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| Criterion |  Product Discovery Kano Model |  Innovation Design Sprint |  UX Research Card Sorting |  Product Discovery Solution Interview |
|---|---|---|---|---|
Purposedifferent | When features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | 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. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 1-2 Tage | 4-5 Tage | 20-45 min | 30-60 min je Interview |
Participantsdifferent | 10-50 | 5-8 | Based on research question | 5-10 Interviews |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Prototype, Test Findings, Decision Rationale | Content groups, Label set, IA hypotheses | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | SatisfactionPrioritizationCustomer | Design sprintPrototypeValidationInnovation | Information architectureNavigationStructure | ValidationInterviewsPrototype |