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| Criterion |  Architecture C4 Model |  Product Discovery Problem Interview |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 30-60 min je Interview | 20-35 min |
Participantsdifferent | 1-5 | 5-12 Interviews | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Problem Evidence, Risk Notes, Customer Segments | Test Card with a pre-set threshold |
Tagsno overlap | ArchitectureCommunicationVisualization | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryHypothesis |
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