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DCMI Architecture Working Group

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Deliverables

See also:

• DCMI term declarations represented in RDF schema language - Tom Baker; Pete Johnston
• DCMI term declarations represented in XML schema language - Pete Johnston

Issues

The work plan of the working group includes the following tasks:

• Finalize the DCMI Abstract Model document and move to DCMI Recommendation status.
• Develop short document for RDF implementors, clarifying the resource vs. literal string value issue and providing advice on best practice.
• Consider possible RDF encoding changes (in light of above issue), carry out impact analysis and make recommendations. This work to be undertaken by small taskforce.
• Provide a persistent URI for the latest version of our XML schemes.
• Revise the Guidelines for implementing Dublin Core in XML document in order that it includes an explicit mechanism for encoding value URIs and provides two container elements for DC descriptions, probably called <dcxml:description> and <dcxml:descriptionSet>. Revise DCMI XML schemas accordingly.
• Revise the Namespace Policy for the Dublin Core Metadata Initiative (DCMI) to align use of terminology with other DCMI recommendations.

Forums

Mailing list

To join or leave:
http://www.jiscmail.ac.uk/cgi-bin/wa.exe?SUBED1=dc-architecture&A=1

Archive:
http://www.jiscmail.ac.uk/lists/DC-ARCHITECTURE.html

Background

Information on discussions and decisions that were used to support the creation of this working group.

This working group has multiple roles:

• First of all, the group addresses the practical need of implementers by drafting, discussing and agreeing to specifications and guidelines on how to express and encode Dublin Core metadata using mainstream Web technologies. This also includes work on an architectural roadmap describing the various options for Dublin Core deployment.
• Secondly, on the basis of the work on specifications and guidelines, the group acts as a center of expertise that gives guidance to implementers on the basis of questions that arise in practical deployment of Dublin Core metadata. This activity includes cooperation with other working groups within the DCMI that encounter issues of modeling and implementation, e.g. as will be the case in the Agents Working Group.
• Finally, it is also a discussion platform for all technical issues related to the deployment of Dublin Core metadata, including the use of new technologies that emerge from the World Wide Web Consortium and elsewhere.

The WG has strong links with the Registry Working Group, where work is underway to establish a Registry of DCMI Metadata Terms, in the first instance to be used by humans to register, search, navigate and extend vocabularies, but which will develop in the future into a system that can be used by applications to find the machine-readable schemas maintained by DCMI.

The work of the WG may also be influenced by liaison activities of the DCMI. For example, in 2001, an activity was started to look at the interoperability between DCMI and IEEE/LOM metadata (See the Memorandum of Understanding and Ottawa Communiqué). Results of this cross-standard activity may require further work in the Architecture WG to provide guidance on deployment strategies.

As the goal of the WG is to provide enabling technology to support the deployment of DC metadata based on existing specifications from DCMI, W3C and elsewhere, WG members will need some understanding both of various relevant technologies (XML, RDF, HTML, XHTML, XSLT ...) and of the kinds of metadata applications Dublin Core is being applied to.

History

• Date constituted:
• Page last updated:

Related Work

The RDF Interest Group provides an active forum for discussion amongst RDF/XML metadata implementors.

Resources

None.