What's New for Modeling Tools in Visual Studio 2013
Visual Studio Ultimate includes these new capabilities to help you visualize complex or unfamiliar code:
Map relationships in the code by creating code maps from the code editor. See Visualize and Understand Code with Code Maps in Visual Studio.
Map the call stack while in debugging mode by creating code maps from the code window or call stack window. See Visualize and Debug Code Execution with Call Stacks in Visual Studio.
Code maps appear next to the code editor so you can easily see your place in the code while you work. You can also use code maps to navigate around your code.