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| Criterion |  Product Discovery Problem Interview |  Architecture Architecture Decision Record |  Delivery Communication Plan |
|---|---|---|---|
Purposedifferent | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 15-45 min | 45-90 min |
Participantsdifferent | 5-12 Interviews | 1-3 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | ADR File, Decision Log, Rationale | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | DiscoveryInterviewsValidation | ArchitectureRationaleDocumentationGovernance | CommunicationStakeholdersDeliveryPlanning |
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