All architecture topics which have reached consesus by the community can be found as a child page under OpenHIE Architecture.
The OpenHIE Architecture & Standards mailing list/calls were created for members of OpenHIE and its Communities to discuss cross-cutting technical issues about how components work with one another and the affect they have on our health information exchange. This mailing list is open to anyone so if you would like to join the group click here, email is ohie-architecture@googlegroups.com.