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| Criterion |  Operations Change Analysis |  Knowledge Modeling Event Modeling |  Product Discovery Opportunity Interview |  Product Discovery Problem Interview |
|---|---|---|---|---|
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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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 the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 45-120 min | 2-6 h | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 2-6 | 2-8 | 5-12 Interviews | 5-12 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Event Model, UI Flow, Commands, Read Models | Interview Notes, Opportunity Themes, Customer Quotes | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | EventsBlueprintDomain-Driven DesignBehavior | DiscoveryInterviewsOpportunityCustomer | DiscoveryInterviewsValidation |