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| Criterion |  UX Research Surveys |  Operations Gemba Walk |  Operations PDCA Cycle |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 3-14 Tage | 30-120 min | 1 h bis mehrere Wochen | 45-60 min |
Participantsdifferent | 50+ | 2-6 | 1-8 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Survey Results, Charts, Segment Insights | Observation Notes, Improvement Ideas | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | QuantitativeResearchValidation | LeanObservationProcessOperations | Continuous improvementLeanExperiments | AssumptionsRiskExperimentsValidation |