Systems

Metadata crosswalk web service

Lorcan 1 min read

Metadata crosswalks are becoming more important as more data flows from application to application. We have been working on this issue and the approach was described a while ago in the Code4Lib Journal.

This paper discusses an approach and set of tools for translating bibliographic metadata from one format to another. A computational model is proposed to formalize the notion of a ‘crosswalk’. The translation process separates semantics from syntax, and specifies a crosswalk as machine executable translation files which are focused on assertions of element equivalence and are closely associated with the underlying intellectual analysis of metadata translation. A data model developed by the authors called Morfrom serves as an internal generic metadata format. Translation logic is written in an XML scripting language designed by the authors called the Semantic Equivalence Expression Language (Seel). These techniques have been built into an OCLC software toolkit to manage large and diverse collections of metadata records, called the Crosswalk Web Service. [The Code4Lib Journal – Toward element-level interoperability in bibliographic metadata]

This work is used internally by OCLC as we manage more streams of metadata. A demonstration web service has also now been made publicly available. There is not much to look at unless you are a machine 😉

Share
More from LorcanDempsey.net
Two metadata directions
Systems

Two metadata directions

Metadata practice continues to evolve as research and cultural practices diversify. After a brief environmental view, I discuss two important metadata trends here: entification and pluralization.
Lorcan 16 min read
icon

Follow along

Deep dives and quick takes. Libraries, society, culture, technology, ...

Great! You’ve successfully signed up.

Welcome back! You've successfully signed in.

You've successfully subscribed to LorcanDempsey.net.

Success! Check your email for magic link to sign-in.

Success! Your billing info has been updated.

Your billing was not updated.