Yes. An architect could give the basic floor plan of a building to a contractor, who in turn could give it to subcontractors for electrical, roofing, plumbing and kitchen work. Each subcontractor could use the floor plan as a template to draw over (using layers). When all layers were complete, they could be pasted into individual layers in one document to centralize all information.
You can cut and paste the layers into the new drawing (one at a time) or you can use the Place File... command to insert an entire drawing.