Colleagues
The MARC2RDA Project has created a public GraphDb triplestore repository containing the output of the project's transform of MARC 21 records to well-formed RDA. The repository contains several million triples that can be queried via the GraphDb SPARQL interface. The project has created some saved SPARQL queries that reflect RDA element structures and project decisions. Feel free to play around; all feedback is welcome.
See the MARC2RDA Project landing page for more information.
------------------------------
Gordon Dunsire
------------------------------
Original Message:
Sent: Feb 12, 2026 01:48 PM
From: Mackenzie Johnson
Subject: External link representation in RDA
Alas, if one exists, I don't know of it. But I am by no means a "top-of-my-field" expert on the subject either so take that as you will.
------------------------------
Mackenzie Johnson
Cataloguing Librarian
University of Saskatchewan
He/Him/His
Original Message:
Sent: Feb 12, 2026 10:08 AM
From: A W
Subject: External link representation in RDA
That's exactly what I was looking for, thank you Mackenzie. Do you know of any publicly queryable catalogs (e.g. via SPARQL) that feature well-formed RDA? I would like to learn by example.
------------------------------
A W
Original Message:
Sent: Feb 12, 2026 08:34 AM
From: Mackenzie Johnson
Subject: External link representation in RDA
Hello!
RDA does indeed have the exact predicate you're looking for: the Manifestation attribute "has uniform resource locator"
IRI: http://rdaregistry.info/Elements/m/P30154
Toolkit entry (if you have access): https://access.rdatoolkit.org/en-US_ala-3a036743-f303-3327-9fac-25be1f6cf028
------------------------------
Mackenzie Johnson
Cataloguing Librarian
University of Saskatchewan
He/Him/His
Original Message:
Sent: Feb 11, 2026 02:11 PM
From: A W
Subject: External link representation in RDA
Hello. I am a complete novice when it comes to library science, and I am interested in building a catalog of my small personal library using modern cataloging techniques such as RDA. I am seeking a predicate that I can use to properly represent the URL at which a particular Item is available. For example, if I have a PDF copy of Crime and Punishment, I want the direct URL to that file saved in my triplestore. Does RDA have a predicate which is most appropriate for this?
------------------------------
A W
------------------------------