What local extensions have been implemented at Los Rios?


Extensions in current use

The following extensions have been officially adopted for current use:

Field no. Name Purpose Analytics Local Parameter
591 Los Rios local note Information pertinent only at Los Rios. Can be placed in various areas of the record and shown to / hidden from particular Primo VE views. 04
952 CDL designator Indicates that the bib has an active digital representations used for controlled digital lending. Facilitates "ribbon" in library Canvas app and may be useful in certain Analytics reports. 02
956 Custom thumbnail image Images not suitable for adding to WorldCat master record. Normally hosted on library web server and named to fit our thumbnail template. 01
962 Sierra accession number Number of bib record in legacy Sierra system; only present on migrated records. Was useful during and shortly after migration.  
977 Local resource type keyword    
988 Los Rios creator Displays info about Los Rios-affiliated author, illustrator etc. 03

Obsolete and unofficial extensions

In our first year of implementation, we were using local extensions in fields 591-595 to note items on reserve. We have since moved to using Alma's Course Reserves / Reading lists. These obsolete course reserve notes may still be found in MARC display, but they are not displayed or searchable in Primo VE and may be removed at any time.

In a few cases field 975 has been used for vendor bibs uploaded to electronic collections.

As explained in the document on our 591 note, catalogers may use a local 590 extension if they like.


  • Last Updated Dec 03, 2023
  • Views 25
  • Answered By Jeff Karlsen

FAQ Actions

Was this helpful? 0 0