The ADO.NET Entity Framework Tools Preview CTP contains a preview release of the ADO.NET Entity Designer which enables users to visually design model and mappings using Visual Studio 2008 Beta 2. The designer in this CTP has limited functionality and only supports a subset of the ADO.NET Entity Framework. Please refer to ReadMe.htm in the links below for a list of known issues in this CTP. Generate a model from a database with the wizard and display it on the designer surface. Validate model and mappings using the Entity Framework Runtime.