Steve, they seem to be spread across the RDA entities. Agent has "is 
respondent of" (of a thesis, that is). Work has "has respondent". I 
honestly haven't looked at it all closely enough to have an idea of how 
it works. So, yeah, all of the above/below.

kc

On 12/1/22 7:48 AM, McDonald, Stephen wrote:
> Karen,
> 
> Perhaps I am confused.  You are speaking of relators like editor and degree supervisor but you then talk about RDA Agent Properties.  Wouldn't the RDA equivalent of these relators be in Work Properties or Expression Properties?
> 
> 					Steve McDonald
> 					[log in to unmask]
> 
> 
> 
> -----Original Message-----
> From: Code for Libraries <[log in to unmask]> On Behalf Of Karen Coyle
> Sent: Wednesday, November 30, 2022 3:27 PM
> To: [log in to unmask]
> Subject: [External] [CODE4LIB] LoC Relators as Properties
> 
> C4L'rs - I send the email below to the BIBFRAME list and apologize if you have already seen it. I am trying to understand if there is interest in having an RDF vocabulary of agent relationship *properties* (editor, illustrator, funder, artist). The current entries in the LoC relators list are defined as Things (SKOS concepts) but not predicates (see exceptions explained below). The RDA agent vocabulary [3 below] takes a markedly different approach and I would be interested to know if anyone is using that and if you have found that sufficient.
> 
> Thanks,
> kc
> -------- Forwarded Message --------
> Subject:        [BIBFRAME] LoC Relators as Properties
> Date:   Mon, 28 Nov 2022 14:09:06 -0800
> From:   Karen Coyle <[log in to unmask]>
> Reply-To:       [log in to unmask]
> To:     [log in to unmask]
> 
> 
> 
> All,
> 
> I'm writing to solicit your thoughts on using LoC relators [1] as properties. It's a bit more complex of a question than it sounds, but I'll try my best.
> 
> This comes about because of a project at Dublin Core for a Scholarly Resources Application Profile [2] (SRAP). The developers of SRAP (from the Finnish National Library) would like to use the following relators as properties in their profile:
> 
> Degree supervisor | http://id.loc.gov/vocabulary/relators/dgs
> Editor            | http://id.loc.gov/vocabulary/relators/edt
> Funder            | http://id.loc.gov/vocabulary/relators/fnd
> Opponent          | http://id.loc.gov/vocabulary/relators/opn
> Praeses           | http://id.loc.gov/vocabulary/relators/pra
> 
> (More may be added later).
> 
> As you may know, LoC relators are defined in MADS and in SKOS as concepts. In the downloaded MADS file you can find the declaration:
> 
> rdfs:subPropertyOf <http://purl.org/dc/elements/1.1/contributor>
> 
> in about 105 of the nearly 400 relators defined there. This was added in the early 2000's to relators that were deemed to be in the spirit of dc:contributor.
> 
> For example
> 
> <http://id.loc.gov/vocabulary/relators/act> a madsrdf:Authority ; madsrdf:authoritativeLabel "Actor" ; madsrdf:code "act" ; madsrdf:definitionNote "A performer contributing to an expression of a work by acting as a cast member or player in a musical or dramatic presentation, etc."@en ; madsrdf:editorialNote "changed MARC def"@en ; madsrdf:hasBroaderAuthority <http://id.loc.gov/vocabulary/relators/prf> ; madsrdf:hasNarrowerAuthority <http://id.loc.gov/vocabulary/relators/vac> ; madsrdf:isMemberOfMADSCollection <http://id.loc.gov/vocabulary/relators/collection_BIBFRAMEWork>,
> <http://id.loc.gov/vocabulary/relators/collection_PastPresentRelatorsEntries>,
> <http://id.loc.gov/vocabulary/relators/collection_RDA>,
> <http://id.loc.gov/vocabulary/relators/collection_RDAContributor>,
> <http://id.loc.gov/vocabulary/relators/collection_RDAWork> ; madsrdf:isMemberOfMADSScheme <http://id.loc.gov/vocabulary/relators> ; rdfs:subPropertyOf <http://purl.org/dc/elements/1.1/contributor> .
> 
> Because of this subproperty declaration, it follows that these relators can be used as properties in RDF. Unfortunately, most of the relators that SRAP wishes to use are not so defined.
> 
> Note that RDA defines relators as "agent" properties [3] and the National Library of Sweden has created its own list based LoC's relators, but in which they are defined as properties.[4] However, it is generally thought that the LoC list is the best known, the sine qua non of relator lists, and that is what the developers of SRAP prefer to use.
> 
> All of that is background for this question:
> 
> IS THERE A DESIRE IN THE COMMUNITY TO USE LoC RELATORS AS PROPERTIES?
> 
> If so, the when and how could be discussed next.
> 
> kc
> 
> [1] https://id.loc.gov/vocabulary/relators
> 
> [2] https://github.com/dcmi/dc-srap
> 
> [3] http://www.rdaregistry.info/Elements/a/
> 
> [4] https://id.kb.se/vocab/
> 
> 
> --
> Karen Coyle
> [log in to unmask]
> http://kcoyle.net
> 
> Caution: This message originated from outside of the Tufts University organization. Please exercise caution when clicking links or opening attachments. When in doubt, email the TTS Service Desk at [log in to unmask]<mailto:[log in to unmask]> or call them directly at 617-627-3376.
> 

-- 
Karen Coyle
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http://kcoyle.net