EF4, the new version of Entity Framework in .NET 4.0, now supports agile development with the ability to use POCO (Plain Old CLR Objects) classes with EF. Now you can use your own classes without having to bind them to the Entity Framework APIs, yet still benefit from the querying, change tracking and updates that EF provides. One flavor of POCO is "in the box" and uses a model that you define. An extension to EF will also provide Code Only development where you will not even be required to build a model. This session will show you how to integrate your classes into the Entity Framework. See Part 2 to learn how to get the full benefit of this with unit testing and more.