The Enterprise Messaging Infrastructure (eMI) Service Orientated Architecture (SOA) system functions as the communications backbone of the Veterans Affairs (VA) data sharing environment, as well as the VA’s dedicated single-point transport mechanism for all connectivity services related to all interoperability integrations of medical health systems between the VA, and other authorized federal agencies and private health care facilities.

The purpose of the Veterans Interoperability and Integration (VII) effort is to integrate the eMI with the Defense Medical Information Exchange (DMIX) Data Exchange Service (DES). DMIX/DES allows access to crucial Department of Defense (DoD) patient records for use by doctors and other clinicians. These health records can be searched via patient identifier, Logical Observation Identifiers Names and Codes (LOINC), and desired information source(s). The DMIX/DES supports the exchange of patient clinical data with the DoD, the VA, and other federal and commercial entities using eHealth Exchange.