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| Criterion |  Product Discovery Kano Model |  Operations 8D Problem Solving |  UX Research Empathy Mapping |
|---|---|---|---|
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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 1-2 Tage | 1-6 Wochen | 30–60 min |
Participantsdifferent | 10-50 | 4-10 | 4-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | SatisfactionPrioritizationCustomer | QualityProblem solvingRoot cause | SynthesisQualitativeWorkshop |
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