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| Criterion |  Operations Change Analysis |  Product Discovery Dual-Track Agile |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | When uncertainty and delivery run in parallel, it separates learning work from implementation while keeping both connected. It prevents unvalidated ideas from falling directly into the delivery stream. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 45-120 min | Laufend, Wochen bis Monate | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-6 | 4-10 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Discovery Backlog, Delivery Backlog, Experiment-Ergebnisse, Validierte Stories | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | AgileDiscoveryDelivery | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |