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| Criterion |  Operations A3 Problem Solving |  Product Discovery Opportunity Interview |  Operations Gemba Walk |  Operations Kaizen Event |
|---|---|---|---|---|
Purposedifferent | 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. | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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 a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-60 min je Interview | 30-120 min | 0.5-5 Tage |
Participantsdifferent | 2-5 | 5-12 Interviews | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Interview Notes, Opportunity Themes, Customer Quotes | Observation Notes, Improvement Ideas | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tagsno overlap | LeanProblem solvingCoachingOperations | DiscoveryInterviewsOpportunityCustomer | LeanObservationProcessOperations | LeanContinuous improvementOperations |