 Metadata’s Next Top Model RDF and Its Impact on Digital Library Technology Juliet L. Hardesty, Metadata Analyst Digital Library Brown Bag February 18,

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Presentation transcript:

 Metadata’s Next Top Model RDF and Its Impact on Digital Library Technology Juliet L. Hardesty, Metadata Analyst Digital Library Brown Bag February 18, 2015

What makes a good model? image

What makes a good model? Resource Description Framework (RDF)

 Linked data/Semantic Web  XML  Vocabularies What isn’t RDF?

 Conceptual Model  Literally a framework for how to explicitly describe things and relate them to other explicitly-described things  RDF Primer from W3C RDF Primer  Rdfabout (readable tutorial) on Github by Josh Tauberer Rdfabout  RDF for Librarians by Jenn Riley – Fall 2010 DLBB (handout) RDF for Librarianshandout What is RDF?

IU’s Digital Collections, ca present XML File (MODS) XML File (Fedora DC) XML File (RELS-EXT) XML File (other) Digital File (.mp3) Digital File (.mp4) Digital File (other) Fedora Object Digital File (.jpg)

 Wylie House Museum photograph   /datastreams /datastreams Sample Digital Object in Fedora 3

Relationships between objects in Fedora 3 IU’s use of RDF avalon:2368 avalon:2360 isPartOf Avalon Example predicate (property) subjectobject

Relationships between objects in Fedora 3 IU’s use of RDF iudl: iudl: isMemberOfCollection Finding Aid Example iudl: (199 page PDF) iudl: (page 1 JPG) isPartOf (folder of items) (finding aid)

Fedora 4

SPARQL image  Allows for immediate changes to current resource  Other namespaces can be added to extend properties of object  Possibilities… flickr

MODS RDF  Added modsrdf namespace  Changed subjects from DC to MODS

 Descriptive  PREFIX modsrdf:  Structural  PREFIX ebucore: ??  PREFIX fobj: ??  PREFIX somethingElse: ?? Structural and Descriptive RDF

Data Store So what is RDF? at least, that’s where we seem to be heading now…

RDF in a lunchbox image

  Tuesdays, 10am-noon, Scholars’ Commons 157S Questions? Comments!