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Architecture Blueprints

Detailed engineering specifications for the User Management System (UMS), with a primary focus on the database design and entity relationships.

Key Documents

• Database Design ER: The definitive entity-relationship diagram and documentation.
• ER Export Formats: Different representations (SQL, Mermaid, PNG) of the data model.
• Interactive ER Viewer: Interactive tool for database exploration.
• Service Entity Map: Mapping between services and their database entities.
• Shell Library Architecture: Dependency and inheritance model for the UMS-owned DDD and Factory shell libraries.

Technical Enablers

• TE-04: Transactional Outbox Pattern: At-least-once event delivery via outbox table + relay worker.
• TE-05: Distributed Saga with Dapr: Choreography-based saga for long-running cross-context workflows.
• TE-06: CQRS Projection Rebuild: Shadow store + atomic swap for zero-downtime projection rebuilds.

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