Existing Wording: The request resource created during the CRD workflow should be persisted in the EHR FHIR server for retrieval by the DTR application. This might, for example, be the ServiceRequest resource that is sent in the CDS hook to the CRD server.

Proposed Wording: The request resource created during the CRD workflow should be persisted in the EHR FHIR server for retrieval by the DTR application, if possible. This might, for example, be the ServiceRequest resource that is sent in the CDS hook to the CRD server. Additionally, a tight integration between the CRD service and the DTR application should enable the DTR app to access FHIR resources received by the CRD service that are not available from the EHR's FHIR server. 

Comment:

I don't understand what this sentence means. I'm unsure that it's reasonable for the EHR to "persist the request resource" – whatever that means. Could you elaborate?

Summary:

I don't understand what this sentence means.