P6R8.3 EPPM and SharePoint interaction

I'm trying to develop a concise way to explain how EPPM uses SharePoint when configured to work directly with it.  Does this explain it or am I missing the mark:

There are 2 ways to use SharePoint with EPPM:

1. Link to specific documents - Each project has its own SharePoint site (or other shared storage location).  In the Projects / Workspace / Project Documents you can link to any file or URL.  You can copy the link to the file in the project's SharePoint site and paste it in the pop up window.  This allows individuals to click through (ex. from Progress Reporter) and bring up the actual document, edit it, and save / save as back to where it really exists.