1.  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 #dlbb @jlhardes

2. What makes a good model? image

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

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

5.  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?

6. IU’s Digital Collections, ca. 2005-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)

7.  Wylie House Museum photograph  http://purl.dlib.indiana.edu/iudl/images/VAC4785/VAC478 5-000793 http://purl.dlib.indiana.edu/iudl/images/VAC4785/VAC478 5-000793  http://fedora.dlib.indiana.edu/fedora/objects/iudl%3A113 0465/datastreams http://fedora.dlib.indiana.edu/fedora/objects/iudl%3A113 0465/datastreams Sample Digital Object in Fedora 3

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

9. Relationships between objects in Fedora 3 IU’s use of RDF iudl:1354092iudl:956830 isMemberOfCollection Finding Aid Example iudl:1354093 (199 page PDF) iudl:1354094 (page 1 JPG) isPartOf (folder of items) (finding aid)

11. Fedora 4

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

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

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

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

16. RDF in a lunchbox image

17.  jlhardes@iu.edu  @jlhardes  Tuesdays, 10am-noon, Scholars’ Commons 157S Questions? Comments!