**3.3 OHC FHIR server**

The OHC platform has been provided by Dedalus. Basically, this is a streaming and integration platform that can be used for large--scale distributed environments. This digital health platform can also unlock isolated data. Further, OHC enables all the interfaces to be connected to and make decisions across disparate data sources in real time. It comprises a set of components, as depicted in the conceptual/logical architectures, is flexible, and can be deployed on private data center, or via cloud in environments like Azure or AWS. It provides the latest version of HAPI FHIR R4 [54].
