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| Criterion |  Product Discovery Kano Model |  Operations A3 Problem Solving |  UX Research HEART Framework |  Operations Gemba Walk |
|---|---|---|---|---|
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 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. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-2 Tage | 45-90 min | 120 min initial, dann laufend | 30-120 min |
Participantsdifferent | 10-50 | 2-5 | 3-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | A3 Report, Action Plan, Root Cause Analysis | HEART-GSM Table, Dashboard | Observation Notes, Improvement Ideas |
Tagsno overlap | SatisfactionPrioritizationCustomer | LeanProblem solvingCoachingOperations | MetricsUX researchMeasurementSatisfaction | LeanObservationProcessOperations |