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| Criterion |  Product Discovery Kano Model |  Operations Ivy Lee Method |  UX Research Empathy Mapping |  UX Research Affinity Diagramming |
|---|---|---|---|---|
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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 5-10 min daily | 30–60 min | 45–90 min |
Participantsdifferent | 10-50 | 1 | 4-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Daily Priority List, Completion Notes | Empathy Map, Assumptions List, Research Gaps | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | SatisfactionPrioritizationCustomer | PrioritizationProductivityExecution | SynthesisQualitativeWorkshop | SynthesisQualitativeRoot cause |