The is a class diagram I generated in Visual Studio 2010. It’s based on the WorldOfArt.Designer.cs file which was generated by the Entity Data Model Wizard. The wizard actually generated three classes. The one in the middle is the WorldOfArtContext class, it inherits the System.Data.Objects.ObjectContext class. The other two classes are based on the two tables in the World of Art database, and inherits the System.Data.Objects.DataClasses.EntityObject class. Like any typical C# class, they have private members and public properties, along with a wide range of partial methods and event handlers for updating the tables.