Linked data and URIs -- #6 Example of a Relator URI

The 100 field for the author in our example bib record also contains a third URI in a subfield $4.

As stated in an earlier post, URIs may now be used in subfield $4 to link to records that provide information about the relationship/relator codes that catalogers have been using for a while in this subfield.

The URI in the second subfield $4 of this example:

$4 http://id.loc.gov/vocabulary/relators/aut

links to the record below from the Library of Congress’ Linked Data Service (https://id.loc.gov/) which describes the relator, “author” (represented by the code “aut” in the first subfield $4):

author

• A person, family, or organization responsible for creating a work that is primarily textual in content, regardless of media type (e.g., printed text, spoken word, electronic text, tactile text) or genre (e.g., poems, novels, screenplays, blogs). Use also for persons, etc., creating a new work by paraphrasing, rewriting, or adapting works by another creator such that the modification has substantially changed the nature and content of the original or changed the medium of expression.
• URI(s)
• http://id.loc.gov/vocabulary/relators/aut
• Codes
• aut
• Variants
• joint author
• Narrower Terms
• author in quotations or text abstracts
• author of afterword, colophon, etc.
• author of dialog
• librettist
• lyricist
• screenwriter
• SubProperty Of
• http://purl.org/dc/elements/1.1/contributor 
• Editorial Notes
• changed MARC def
• History Notes
• MARC bib: 1XX/7XX/8XX $4
• Instance Of
• MADS/RDF Authority
• SKOS Concept 
• OWL ObjectProperty 
• BF Role
• Scheme Membership(s)
• List of Relator Terms
• Collection Membership(s)
• Collection of Past and Present Relators Entries
• Relators - BIBFRAME Collection
• Relators - RDA Collection
• Relators - RDA Work Collection
• Relators - RDA Creator Collection
• Change Notes
• 2021-08-02: new
• 2022-11-29: modified
• Alternate Formats
• RDF/XML (MADS and SKOS)
• N-Triples (MADS and SKOS)
• JSON (MADS/RDF and SKOS/RDF)
• MADS - RDF/XML
• MADS - N-Triples
• MADS/RDF - JSON
• SKOS - RDF/XML
• SKOS - N-Triples
• SKOS - JSON

URIs in subfield $0 might also point to records describing other types of controlled terms used in cataloging. For example, the URI for content type from the Library of Congress’ Linked Data Service (https://id.loc.gov/vocabulary/contentTypes/sti.html) would be entered in the subfield $0 of a 336 field:

336 field from MARC record:

336    $a text $b txt $2 rdacontent $0 http://id.loc.gov/vocabulary/contentTypes/txt

Record linked to by URI in the subfield $0 describing the controlled term “text”:

text

• URI(s)
• http://id.loc.gov/vocabulary/contentTypes/txt
• Codes
• txt
• History Notes
• MARC bib: Leader/06: a or t
• Instance Of
• MADS/RDF Authority
• SKOS Concept 
• OWL Class 
• bibframe Category 
• Scheme Membership(s)
• Content Types
• Collection Membership(s)
• Content Types Collection
• Change Notes
• 2021-08-13: new
• Alternate Formats
• RDF/XML (MADS and SKOS)
• N-Triples (MADS and SKOS)
• JSON (MADS/RDF and SKOS/RDF)
• MADS - RDF/XML
• MADS - N-Triples
• MADS/RDF - JSON
• SKOS - RDF/XML
• SKOS - N-Triples
• SKOS - JSON

In the next and final post of this series, you’ll find a list of resources that you can use to learn more about linked data and URIs in MARC records.

This is the sixth in a series of seven weekly blog posts written by Zahra Gordon, the NHSL Cataloger, which will explain “Linked Data,” an emerging topic in the library field, and how it relates to “Uniform Resource Identifiers (URIs),” which are appearing in subfields of MARC records with increasing frequency.

Linked data and URIs— #5 Example of a Real World Object URI

Our example record from last week also includes a URI entered in a subfield $1

When you searched on the URI in the subfield $0, you were brought to an authority record for the name “Colin Murphy.” When you search on the URI found in the subfield $1, on the other hand, you’re brought to a description of the person behind this name:

 

Murphy, Colin (Journalist)

• URI(s)
• http://id.loc.gov/rwo/agents/no2014111945
• Is Identified By Authority
• http://id.loc.gov/authorities/names/no2014111945

o   Associated Locale: Ireland

Field Of Activity

• Field Of Activity: Journalism
• Occupation
• Occupation: Journalists
• Occupation: Playwrights
• Occupation: Screenwriters
• Occupation: Filmmaker
• Instance Of
• MADS/RDF RWO
• BF Person
• FOAF Person 
• Alternate Formats
• RDF/XML (MADS and SKOS)
• N-Triples (MADS and SKOS)
• JSON (MADS/RDF and SKOS/RDF)
• MADS - RDF/XML
• MADS - N-Triples
• MADS/RDF - JSON
• SKOS - RDF/XML
• SKOS - N-Triples
• SKOS - JSON

Some of the fields found in this record are the same as those found in his authority record (such as “Occupation”). However, notice that the “Sources” listed in the authority record from the last post (which appear in 670 fields in the traditional authority record) don’t appear. The sources consulted by a cataloger to establish the authorized form of Colin Murphy’s name are important information to include in an authority record describing his name, but not in the “Real World Object” (RWO) record describing the person behind the name.

One other thing to note about these two types of records is that they have fields with links that refer to each other. The authority record has an “Identifies RWO” field with a URI pointing to the “real world object” record for the person Colin Murphy, and the “real world object” record has an “Is Identified By Authority” field with a URI pointing to the authority record for his name:

Murphy, Colin (Journalist)

• URI(s)
• http://id.loc.gov/authorities/names/no2014111945
• Identifies LC/NAF RWO
• http://id.loc.gov/rwo/agents/no2014111945

Murphy, Colin (Journalist)

• URI(s)
• http://id.loc.gov/rwo/agents/no2014111945
• Is Identified By Authority
• http://id.loc.gov/authorities/names/no2014111945

In the next post, we’ll look at the third type of URI in the example bib record, a link to a record for a “Relationship” term located in a subfield $4.

 

This is the fifth in a series of seven weekly blog posts written by Zahra Gordon, the NHSL Cataloger, which will explain “Linked Data,” an emerging topic in the library field, and how it relates to “Uniform Resource Identifiers (URIs),” which are appearing in subfields of MARC records with increasing frequency.