If I create a DC of say a “Window”, and someone else on the other side of the world creates exactly the same DC even down to the same attributes, formulas, geometry and file name. they would be different. This I believe is made possible by assigning data and a time stamp in some code form to some hidden attribute.(if someone knows exactly how this works then please correct me). So replacing one DC with another does not update the common attributes. Even if both are created on the same computer and placed in different folders, they swap but do not update.
Now, If I create a DC, save as say “timber window” then alter the same component and save it as “Front Door” the common attributes will update, despite the different geometry, so long as the original DC with its creation stamp remains.
It can be copied, made unique, but this group of DCs inherit some of the attributes of the first creation. We have a family
.Quad.skp (80.5 KB)
Scotia.skp (84.2 KB)