OCLC electronic bibliographic record example; fields we add and modify are highlighted below:

Alma Institution Zone, and Alma electronic portfolio/holdings example: 

• The Institution Zone (IZ) is where all library-owned resources and associated inventory exists. This is your library's collection. Bibliographic records in the IZ can be IZ only records or they can be linked to the NZ.

Alma Network Zone, and institution holdings example:

• Alma's Network Zone (NZ) is a shared bibliographic environment. All bibliographic records should reside in the NZ, with noted exceptions, in order to enable collaboration and sharing of information.