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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Opportunity Interview |  Delivery Communication Plan |
|---|---|---|---|
Purposedifferent | 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 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 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 | Low | Medium | Low |
Timedifferent | 15-45 min | 30-60 min je Interview | 45-90 min |
Participantsdifferent | 1-3 | 5-12 Interviews | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Interview Notes, Opportunity Themes, Customer Quotes | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DiscoveryInterviewsOpportunityCustomer | CommunicationStakeholdersDeliveryPlanning |
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