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Towards an Interoperability Framework for Metadata Standards
KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA. (Knowledge Management Research Group)
Eduserv Foundation, United Kingdom.
KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA. (Knowledge Management Research Group)
Eduserv Foundation, United Kingdom.
2006 (English)In: Proceedings of the International Conference on Dublin Core and Metadata Applications, Manzanillo, Colima, Mexico 3 - 6 October 2006, 2006Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a conceptual metadata framework for Dublin Core metadata, intended to support the development of interoperable metadata standards and applications. The model rests on the fundamental concept of an “abstract model” for metadata, as exemplified by the DCMI Abstract Model, and is based on concepts and ideas that have developed over the years within the Dublin Core Metadata Initiative. The model thus incorporates the concepts of metadata vocabularies, schemas, formats and application profiles into a single framework that can be used to analyse and compare metadata standards, and aid in the process of harmonization of metadata standards. The model is used to briefly compare the structures of the Dublin Core metadata specifications and the IEEE LOM standard. Some fundamental differences between the two standards are discussed briefly, and important gaps in the current set of Dublin Core metadata specifications are noted.

Place, publisher, year, edition, pages
2006.
Series
Proceedings of the International Conference on Dublin Core and Metadata Applications, ISSN 1939-1358
Keyword [en]
Dublin Core, Metadata
National Category
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-25687Scopus ID: 2-s2.0-84871295234OAI: oai:DiVA.org:kth-25687DiVA: diva2:359447
Conference
International Conference on Dublin Core and Metadata Applications, Manzanillo, Colima, Mexico, 3 - 6 October 2006
Note

QC 20141104

Available from: 2010-10-28 Created: 2010-10-27 Last updated: 2017-03-29Bibliographically approved
In thesis
1. From Interoperability to Harmonization in Metadata Standardization: Designing an Evolvable Framework for Metadata Harmonization
Open this publication in new window or tab >>From Interoperability to Harmonization in Metadata Standardization: Designing an Evolvable Framework for Metadata Harmonization
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Metadata is an increasingly central tool in the current web environment, enabling large-scale, distributed management of resources. Recent years has seen a growth in interaction between previously relatively isolated metadata communities, driven by a need for cross-domain collaboration and exchange. However, metadata standards have not been able to meet the needs of interoperability between independent standardization communities. For this reason the notion of metadata harmonization, defined as interoperability of combinations of metadata specifications, has risen as a core issue for the future of web-based metadata.

This thesis presents a solution-oriented analysis of current issues in metadata harmonization. A set of widely used metadata specifications in the domains of learning technology, libraries and the general web environment have been chosen as targets for the analysis, with a special focus on Dublin Core, IEEE LOM and RDF. Through active participation in several metadata standardization communities, a body of knowledge of harmonization issues has been developed.

The thesis presents an analytical framework of concepts and principles for understanding the issues arising when interfacing multiple standardization communities. The analytical framework focuses on a set of important patterns in metadata specifications and their respective contribution to harmonization issues:

  • Metadata syntaxes as a tool for metadata exchange. Syntaxes are shown to be of secondary importance in harmonization.

  • Metadata semantics as a cornerstone for interoperability. This thesis argues that the incongruences in the interpretation of metadata descriptions play a significant role in harmonization.

  • Abstract models for metadata as a tool for designing metadata standards. It is shown how such models are pivotal in the understanding of harmonization problems.

  • Vocabularies as carriers of meaning in metadata. The thesis shows how portable vocabularies can carry semantics from one standard to another, enabling harmonization.

  • Application profiles as a method for combining metadata standards. While application profiles have been put forward as a powerful tool for interoperability, the thesis concludes that they have only a marginal role to play in harmonization.

The analytical framework is used to analyze and compare seven metadata specifications, and a concrete set of harmonization issues is presented. These issues are used as a basis for a metadata harmonization framework where a multitude of metadata specifications with different characteristics can coexist. The thesis concludes that the Resource Description Framework (RDF) is the only existing specification that has the right characteristics to serve as a practical basis for such a harmonization framework, and therefore must be taken into account when designing metadata specifications. Based on the harmonization framework, a best practice for metadata standardization development is developed, and a roadmap for harmonization improvements of the analyzed standards is presented.

Place, publisher, year, edition, pages
Stockholm: KTH, 2010. x, 125 p.
Series
Trita-CSC-A, ISSN 1653-5723 ; 2010:15
Keyword
metadata, dublin core, IEEE LOM, RDF, semantic web, interoperability, standardization
National Category
Computer Science
Identifiers
urn:nbn:se:kth:diva-26057 (URN)978-91-7415-800-7 (ISBN)
Public defence
2010-12-15, Sal F3, Lindstedsvägen 26, KTH, Stockholm, 13:00 (English)
Opponent
Supervisors
Note
QC 20101117Available from: 2010-11-17 Created: 2010-11-10 Last updated: 2010-11-23Bibliographically approved

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