Each reference format is explained in the following sections.
Topics in this section
Autodesk Vault Overview
Autodesk Vault is the recommended project management option for large design teams working with AutoCAD Civil 3D.
Data Shortcuts Overview
Data shortcuts provide complete reference copies of objects that you can insert into one or more other drawings.
External References Overview
An external reference (xref) inserts the entire contents of another drawing into the current drawing as a display-only object.