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| Criterion |  Product Discovery Kano Model |  Operations ABC Analysis |  UX Research Card Sorting |  Operations A3 Problem Solving |
|---|---|---|---|---|
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 many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 Tage | 30-60 min | 20-45 min | 45-90 min |
Participantsdifferent | 10-50 | 1-5 | Based on research question | 2-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | ABC Classification, Focus Rules, Control List | Content groups, Label set, IA hypotheses | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | SatisfactionPrioritizationCustomer | PrioritizationOperationsPortfolio | Information architectureNavigationStructure | LeanProblem solvingCoachingOperations |