Every user can have a membership to one or several Organization units.
Organization units are used for organizing the users and content sharing. Instead of having to share a piece of content with each and every user within e.g a faculty, a user can decide to share the content with all members of that organization unit (faculty).
If a user has a membership to a parent node he automatically has memberships to all sub-organization units, including units added in the future. This is shown in the example below. Child memberships are checked and read-only.
If a user has membership to all sub-organization units below a parent organization, he will not automatically get membership to units added in the future.
This is shown in the example below with the parent node partly filled: