Most enterprise applications uses an architectural pattern that needs a stateless facade for its business logic. So they can use it in several scenarios like WebServices or WCF, ASP.NET applications, Traditional Desktop Application (Windows Forms, WPF).. etc. If you're using Entinty Framework, your derived ObjectContext is called short lived context and there is some issues about it. My last post (in spannish language) explores best practices for better perfomance with short lived contexts in...