Fwd: [ands-general] Fwd: [LODLAM] Archival linked data: a discussion

---------- Forwarded message ----------
From: Ingrid Mason <ingrid.mason@ands.org.au>
Date: 18 May 2014 12:37
Subject: [ands-general] Fwd: [LODLAM] Archival linked data: a discussion
To: Ingrid Mason <ands-general@googlegroups.com>

** apologies for cross-posting ** 

This post from Ethan Gruber calls for those interested in modelling and translating EAC-CPF and EAD to support interoperation.  

From the LODLAM (Linked Open Data: Libraries, Archives, Museums) Google group.  

Ingrid 

---------- Forwarded message ----------
From: Ethan Gruber <ewg4xuva@gmail.com>
Date: 17 May 2014 06:22
Subject: [LODLAM] Archival linked data: a discussion
To: lod-lam@googlegroups.com

Hi all,

I'm doing a lot of work with archival authorities (EAC-CPF) and EAD finding aids, including publishing both as linked open data. There's a lot of need in this area, as I think linked data methodologies have an important role to play in the dissemination of archival resources, and the community has not yet come together to discuss ontologies, models, and best practices.

As a software developer working on modeling EAC and EAD into RDF and pushing data into triplestores (http://eaditor.blogspot.com/2014/05/linking-archival-entities-and-resources.html), I've reach the extent of what I can do by myself, I think. By that I mean I hesitate to take the modeling further within the silo of my own applications. I would rather implement standards that emerge from the community.

At the moment, I am focusing on modeling EAD into RDF. I am applying Aaron Rubinstein's Arch ontology (http://gslis.simmons.edu/archival/arch/index.html), which I think is a great start. There are a few points with it that I'll raise for discussion:

1. How do you relate things together, e.g., a collection comprising sub-collections. Sub-collections that contain individual items? There's no property for hierarchical relationships in the ontology, but I think dcterms:isPartOf would work. That is to say, an Item (such as a manuscript) dcterms:isPartOf a Collection.

2. arch:Manuscript. This class seems a little too specific. Maybe an Item class would work better? What if a collection contains photographs, glass plate negatives, or rock samples from the collection of a geologist? The particular type of item could be defined with a dcterms:format and a URI from the Getty AAT or another thesaurus.

3. Not that big of a deal, but some properties are in the http://purl.org/dc/elements/1.1/ namespace. I have casually observed that Dublin Core terms from http://purl.org/dc/terms/ are the de facto standard.

4. I think a proof of concept CIDOC-CRM model was developed for representing an archival collection, but I don't know how far down that rabbit hole the community is willing to go.

For those who are interested, here (https://github.com/ewg118/eaditor/blob/master/ui/xslt/serializations/ead/rdf.xsl) is a very rudimentary XSLT stylesheet for transforming an EAD file into RDF/XML following the arch ontology.

Ethan Gruber
American Numismatic Society

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