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| Criterion |  Operations Visual Management |  Operations A3 Problem Solving |  Product Discovery Test Card |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | Ongoing | 45-90 min | 20-35 min | 25-40 min |
Participantsdifferent | 1-20 | 2-5 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | A3 Report, Action Plan, Root Cause Analysis | Test Card with a pre-set threshold | Learning Card with evidence and next action |
Tagsno overlap | SignalsOperationsVisual management | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |