Assemblies/Drawings, especially in military and DoD, can have two different revisions. One for the master drawing / family drawing, and one for the part/component drawing. It would be helpful to have a Family/Master drawing revision field that can be tied to a master drawing and be globally changed in the system, as well as individual Part / Assembly revision field. Right now, there is only one revision field.
If the master / family drawing rev changes, there could be hundreds of parts that are impacted.