A workset is a collection of elements in a workshared project.
You can create worksets based on functional areas, such as the following:
The important distinction when working with ownership of objects in a workset is between making a workset editable and borrowing from a workset.
When you make a workset editable in Revit, you are taking exclusive ownership of all objects in it. Only one user can exclusively edit each workset at a given time. All team members can view worksets owned by other team members, but they cannot always make changes to them. This restriction prevents potential conflicts within the project.
It is possible to borrow an element from a workset that you do not own.