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| Criterion |  Product Discovery Kano Model |  Operations Kepner-Tregoe |  Operations ABC Analysis |  Operations 8D 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. | 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. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-2 Tage | 2-8 h | 30-60 min | 1-6 Wochen |
Participantsdifferent | 10-50 | 2-8 | 1-5 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Problem Analysis, Decision Analysis, Risk Plan | ABC Classification, Focus Rules, Control List | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | SatisfactionPrioritizationCustomer | Problem solvingRoot causeDecisionOperations | PrioritizationOperationsPortfolio | QualityProblem solvingRoot cause |