SDE for Visual Studio is an easy-to-use UML tool seamlessly integrated with Visual Studio. SDE supports full software development life-cycle -analysis, design, implementation, testing and deployment. You can draw UML diagrams (class, use case...) in Visual Studio, generate C# code, reverse engineer C# code to class diagrams, import Rational Rose...
+Visio integration
+Reverse XML, C++, CORBA IDL
+Plug-in and template
+more