These are the various categories and codes used by Koha to describe patrons and items in the catalog.
DBText originally didn’t differentiate borrowers; as long as their expiration date hadn’t passed, they could take out books. I added a select-code field into which we could put various tags such as: IND, FAM, BoD, Vol, PUB PR and a whole bunch of others whose meanings have been lost.
Koha has patron categories, which control dues and borrowing profiles (how many and for how long.) We can add attributes to be used by search filters. Many of the select codes above will go here with descriptions.