Friday, October 14, 2011

OWL Ontology for the PREMIS Data Dictionary for Preservation Metadata

On behalf of the PREMIS Editorial Committee we are happy to announce the publication of an OWL ontology for the PREMIS Data Dictionary for Preservation Metadata version 2.1, a digital preservation standard based on the OAIS reference model. This PREMIS OWL ontology tries to stick as closely as possible to the PREMIS Data Dictionary, which was developed by experts in the domain of long-term preservation and already had clearly defined semantics for its metadata elements. Until now the PREMIS Data Dictionary was only implemented as an XML schema, which remains ideal for creating, validating and storing the preservation metadata of a particular digital asset.

This OWL ontology allows one to express the same information in RDF. With this alternative serialization, information can be more easily interconnected, especially between different repository databases. Information in RDF can be also easily and flexibly queried, which can be an interesting option for the data management function of a repository. The PREMIS OWL ontology also reaches out to preservation-specific vocabularies already published by the Library of Congress on

For all these reasons, the OWL design of PREMIS should NOT be considered as a replacement for the XML Schema: the two of them should rather be considered complementary.

The ontology is public and open for review. There are still some designs decisions open, formulated as questions to the ontology reviewers and available on the PREMIS OWL Public Wiki. Interested people can leave their valuable feedback on the PREMIS OWL Wiki under Questions for Reviewers. Feedback is very much welcome and will be taken into account for the next release of the PREMIS OWL ontology.

For now, the ontology is available on the following namespace, but after it is finalized it will move to a Library of Congress namespace:

Please send comments no later than Nov. 10, 2011 to be considered in a revised version.--From the e-mail announcement.

Recommended Practices for the Presentation and Identification of E-Journals

NISO will continue its monthly open teleconference series this coming Monday, October 17th at 3:00 PM. This month, we will be discussing PIE-J, Recommended Practices for the Presentation and Identification of E-Journals. The PIE-J Working Group is developing a Recommended Practice to provide guidance on the presentation and identification of e-journals, particularly in the areas of title presentation and bibliographic history, accurate use of the ISSN, and citation practice. The group's work will assist publishers, platform providers, abstracting and indexing services, knowledgebase providers, aggregators, and other concerned parties in facilitating online discovery, identification, and access for the publications.

Regina Reynolds, ISSN Coordinator at Library of Congress and Cindy Hepfer, Head, Electronic Periodicals Management & Continuing Resources Cataloging, the University at Buffalo (SUNY) will lead the conversation.

The call is free and anyone is welcome to participate in the conversation. To join, simply dial 877-375-2160 and enter the code: 17800743#. All calls are held from 3-4 p.m. Eastern time.

The Open Teleconferences are an quick way to get an update on the status of a NISO initiative. The calls are informal and questions and discussion is welcome. Following the featured discussion, there is also an opportunity for the NISO community to bring up any issue or topic of interest. This is an excellent time for you to raise any concerns, project ideas, or suggestions of focus for NISO in the coming year.

Other upcoming calls will be on E-Book Annotation Sharing and Social Reading, November 14, and an update on the NISO E-Books Special Interest Group on December 12. Please mark your calendars. If you are unable to join us, this call will be recorded and made freely available on the NISO website following the event—as are all of the Open Teleconferences. For more information or to listen to the previous call discussions, please visit: the e-mail announcement.

TEI in Libraries

Text Encoding InitiativeImage via WikipediaThe TEI Consortium's Special Interest Group on Libraries has recently completed a major revision to the “Best Practices for TEI in Libraries” ( The revised Best Practices contain updated versions of the widely adopted encoding levels, which span from fully automated reformatting of print content to deep encoding to support content analysis and scholarly uses. A substantially revised TEI Header section supports greater interoperability between text collections and MARC records. In addition, the Best Practices now include schemas for encoding levels 1-4, providing a mechanism to better ensure conformance and interoperability of digital texts.

The “Best Practices for TEI in Libraries” formerly known as the "TEI Text Encoding in Libraries: Guidelines for Best Encoding Practices" will be officially unveiled at the 2011 TEI Members' Meeting and Conference currently underway at the University of W├╝rzburg in Germany and at the end of this month at the Digital Library Federation Fall 2011 Forum to be held in Baltimore, 10/31-11/2.--From the e-mail announcement.

Tuesday, October 11, 2011

OLAC Newsletter

The September 2011 issue of the OLAC Newsletter is online

  • From the President
  • Treasurer's Report
  • Conference Corner
  • OLAC Meeting Minutes (Executive Board, CAPC, Membership)
  • Reports (MARBI, CC:DA, RDA Testing, Moving Image Grant, MOUG)
  • News and Announcements
  • Reviews
  • OLAC Cataloger's Judgment
  • News from OCLC
  • OCLC QC Tip of the Month