The post-EHR era: event-driven hospital systems and the end of nightly batch processing

The classic EHR runs on nightly batch jobs. The post-EHR architecture runs on events: every encounter, order, and result is a message that propagates immediately into a realtime read model.

In medOS, microservices publish to a message broker, an orchestrator projects those events into read-model caches, and the frontend subscribes to realtime changes — no polling, no overnight reconciliation.

The payoff is a hospital that sees its own state as it happens, rather than catching up the next morning.