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| Criterion |  Product Discovery Kano Model |  UX Research Empathy Mapping |  Systems Thinking Current Reality Tree |  Systems Thinking Causal Loop Diagram |
|---|---|---|---|---|
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 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-2 Tage | 30–60 min | 2-6 h | 1-3 h |
Participantsdifferent | 10-50 | 4-8 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Empathy Map, Assumptions List, Research Gaps | Current Reality Tree, Core Problems, Intervention Ideas | Causal Loop Diagram, Feedback Notes, Leverage Points |
Tagsno overlap | SatisfactionPrioritizationCustomer | SynthesisQualitativeWorkshop | Systems thinkingRoot causeConstraintsCausality | FeedbackSystems thinkingCausalityDynamics |