Application data used by enterprise applications running on one or more servers can be synchronized with application data deployed from other locations. Application data can be transmitted as XML files over HTTP to facilitate synchronization with web-enabled servers. Multiple service data repositories can be synchronized with application data residing in a master data repository that runs within an enterprise application. Server-to-server data synchronization functionality is also provided through the use of proxy data repositories. Application data files can be deployed from an author system to remote servers. Newly-authored application data files can be versioned in the author system using a source control system and selectively deployed to various servers by the author in conjunction with a multi-stage testing process in preparation for deployment of the application data to a production server.