The Vitria Interface Engine (VIE) Migration is an active PMAS integration project which migrates from legacy messaging system to the new SOA ESB (enterprise Messaging Infrastructure) eMI. These projects support OneVA goals by facilitating the efficient delivery and use of reusable services in support of VA as an enterprise, the VistA Evolution Program, interoperability with agencies, and associated information management systems as dictated by the National Defense Authorization Act (NDAA).