The UML modeler is built on top of the Domain-Specific Language (DSL) Toolkit, so you'll need to download and install the Visual Studio 2010 SDK and the Visual Studio 2010 Visualization and Modeling ...

How to Generate Code from a UML Model in Visual Studio 2010. The UML modeler is a powerful new tool, especially when it's backed with a code-generation system. By Kathleen Dollard; 02/01/2011; Unified ...