ADO.NET Data Services
The ADO.NET Data Services framework lets you create and access data services on the Web. The services use well-known formats to represent the data, such as JSON and XML. Data is made available across the Web in the style of a representational state transfer (REST) resource collection that is addressable by using URIs. Clients can interact with the resources by using HTTP verbs such as GET, PUT, POST, and DELETE. The ADO.NET Data Services framework can expose any data source (database data, XML documents, Web services, and so on) as a REST service.