Based on HL7 v.2.3.1 Orders & Results Reference Information Model (RIM)s, The project is NOT a CPOE per-se. Instead, the project provides "applications" that allow EHR's to perform Outpatient Orders and Results via HIE, and collect these into their EHRs to feed the EHR "CPOE module / section" (ex. with prescribed drugs, ordered labs and results, ....)
The first module in the project was the "ePrescribing application"; certified by RxHub and SureScripts back in 2007. New implementation...