View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Product Discovery Solution Interview |  Operations Gemba Walk |  Operations PDCA Cycle |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 | 30-60 min je Interview | 30-120 min | 1 h bis mehrere Wochen | 45-60 min |
Participantsdifferent | 5-10 Interviews | 2-6 | 1-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Observation Notes, Improvement Ideas | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ValidationInterviewsPrototype | LeanObservationProcessOperations | Continuous improvementLeanExperiments | AssumptionsRiskExperimentsValidation |