Encoding Application Profiles in a Computational Model of the Crosswalk

Carol Jean Godby, Devon Smith, Eric Childress


This paper describes the role of the Dublin Core Terms
application profile in the management of crosswalks involving MARC in OCLC’s
Crosswalk Web Service. This service, described in Godby, Smith and Childress (2008),
formalizes the notion of crosswalk (Getty, n.d.) by hiding technical details and
permitting the semantic equivalences to emerge as the centerpiece. As a result,
metadata experts, who are typically not programmers, can enter the translation logic
into a spreadsheet that can be automatically converted into executable code. The
Crosswalk Web Service supports many mappings involving standards for describing
bibliographic metadata, but the complex relationships among MARC and Dublin Core are
especially compelling because they would be far less elegantly managed without the
conceptual model of the application profile and the computational model of the
crosswalk. With its focus on elements that can be mixed, matched, added, and
redefined, the application profile (Heery and Patel, 2000) is a natural fit with the
translation model of the Crosswalk Web Service, which attempts to achieve
interoperability by mapping one pair of elements at a time. Users can test the
service with their own records by accessing the public demo on the OCLC
ResearchWorks page, or by invoking the Dublin Core export functions in OCLC’s
Connexion® Client.

Full Text: