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| Criterion |  Product Discovery Kano Model |  Agile WSJF |  Product Discovery Jobs to Be Done |  Operations 5 Whys |
|---|---|---|---|---|
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 many tasks compete for the same capacity, it orders work by economic impact. It makes time lost, benefit, and effort comparable together. | When switching motives and progress are unclear, it reconstructs the situation from real customer circumstances. It shows why a switch happens and what kind of progress is being sought. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-2 Tage | 45-90 min | 1-3 Wochen | 15-30 min |
Participantsdifferent | 10-50 | 3-10 | 5-12 Interviews | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Ranked Backlog, Cost-of-Delay Assumptions | Job Stories, Outcome Statements, Opportunity List | Root cause notes, Countermeasures |
Tagsno overlap | SatisfactionPrioritizationCustomer | LeanEconomicsSequencePrioritization | CustomerOutcomesNeeds | Root causeIncidentLeanProblem solving |