Source applications retain their business records

Context

Shared reporting and lookup need access to application records without taking over their lifecycle.

Decision

Applications retain ownership of their business records, while Queries manages reusable definitions, derived results and execution ledgers through the registered interfaces.

Alternatives Considered

Maintain a separate reporting database: A second store would require independent freshness and access controls.

Implement reporting separately in every application: Applications would duplicate query execution, paging and delivery behavior.

Consequences

Applications supply their dataset, recipe, search, export and snapshot declarations. Files and search documents require retention and freshness policies of their own; snapshot owners generate their own rows.