This case study details how a large APAC public health system integrated over 90 clinical systems without centralizing sensitive patient data. Facing fragmented EMR configurations, strict privacy mandates, and limited real-time visibility, the agency adopted Denodo as a federated semantic layer above Snowflake and operational systems. The architecture enforced unified governance, minimized replication, and enabled real-time dashboards for ambulance dispatch, bed availability, and emergency response. Onboarding time dropped from months to days, and cross-network collaboration improved through governed, reusable semantic views.

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