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| Criterion |  Operations Change Analysis |  UX Research User Interviews |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 45-120 min | 30–60 min per interview | 25-40 min | 45-75 min |
Participantsdifferent | 2-6 | 1 participant per interview | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Interview Notes, Themes, Insight Summary | Learning Card with evidence and next action | Test Matrix, Test Plan |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions |