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Có hai bước khi sử dụng ràng buộc: 1. Chọn hoặc xác định một ràng buộc. Phương pháp đơn giản nhất là chọn một trong các ràng buộc được xác định trước với WCF và sử dụng nó với các thiết lập mặc định của nó. 2. Tạo ra một thiết bị đầu cuối sử dụng các ràng buộc được lựa chọn hoặc được xác định | Session 2 Introduction to Microsoft .NET Framework Technologies 5 Comparing .NET Framework and Earlier Versions of the .NET Framework The .NET Framework adds new technologies to .NET Framework which makes the .NET Framework a superset of the .NET Framework . You can think of the .NET Framework as an additive release to the .NET Framework as contrasted with a generational release in which software is revised across the board. For example the .NET Framework was a generational release over the .NET Framework . The .NET Framework is composed of the existing .NET Framework components including Microsoft WinForms Microsoft Base Class Libraries and the Common Language Runtime CLR in addition to new developer-focused innovative technologies in WPF WCF WF and WCS. Because .NET Framework is an additive release and uses the core runtime components from .NET Framework it is completely backward compatible with the earlier version. Your existing .NET Framework applications will continue to run without any modifications and you can safely continue your investments by using the technologies that were included with .NET Framework . Microsoft I Learning 6 Session 2 Introduction to Microsoft .NET Framework Technologies If you are moving to .NET Framework from .NET Framework or you should perform impact analysis and run compatibility testing prior to deployment. Most applications developed using the older versions of .NET Framework will be compatible with .NET Framework there are a small number of known incompatibilities because of security and significant functionality additions. For additional information see the document Breaking Changes in .NET Framework on the Microsoft .NET Developer Center Web site. Session 2 Introduction to Microsoft .NET Framework Technologies 7 .NET Framework Installation Requirements Operating System Requirements For Microsoft .