Map dependencies with code maps

https://docs.microsoft.com/en-us/visualstudio/modeling/map-dependencies-across-your-solutions

Install Code Map and Live Dependency Validation

To create a code map in Visual Studio 2017, first install the Code Map and Live Dependency Validation components:

1. Open Visual Studio Installer. You can open it from the Windows Start menu, or within Visual Studio by selecting Tools > Get Tools and Features.

2. Select the Individual components tab.

3. Scroll down to the Code tools section and select Code Map and Live Dependency Validation.

4. Select Modify.

   The Code Map and Live Dependency Validation components begin installing. You may be asked to close Visual Studio.