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Abstract

The WWW provides unprecedented access to globally distributed content. The extent and uniform accessibility of the Web has proven beneficial for research, education, commerce, entertainment, and numerous other uses. Ironically, the fact that the Web is an information space without boundaries has also proven its biggest flaw. Key aspects of libraries, such as selectivity of content, customization of tools and services relative to collection and patron characteristics, and management of content and services are noticeably absent. In this paper, we review our experiences with NCSTRL and Dienst, describe some of the lessons we have learned from the deployment experience, and define some directions for the future

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Source

Research and advanced technology for digital libraries : 7th European Conference, proceedings / ECDL 2003, Trondheim, Norway, August 17-22, 2003

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Abstract

At the time of writing, the Dublin Core Metadata Initiative (DCMI) has clarified its commitment to the simple approach. The qualification principles announced in early 2000 support the use of DC elements as the basis for simple statements about resources, rather than as the foundation for more descriptive clauses. This paper takes a critical look at some of the issues that led up to this renewed commitment to simplicity. We argue that: * There remains a compelling need for simple, "pidgin" metadata. From a technical and economic perspective, document-centric metadata, where simple string values are associated with a finite set of properties, is most appropriate for generic, cross-domain discovery queries in the Internet Commons. Such metadata is not necessarily fixed in physical records, but may be projected algorithmically from more complex metadata or from content itself. * The Dublin Core, while far from perfect from an engineering perspective, is an acceptable standard for such simple metadata. Agreements in the global information space are as much social as technical, and the process by which the Dublin Core has been developed, involving a broad cross-section of international participants, is a model for such "socially developed" standards. * Efforts to introduce complexity into Dublin Core are misguided. Complex descriptions may be necessary for some Web resources and for some purposes, such as administration, preservation, and reference linking. However, complex descriptions require more expressive data models that differentiate between agents, documents, contexts, events, and the like. An attempt to intermix simplicity and complexity, and the data models most appropriate for them, defeats the equally noble goals of cross-domain description and extensive resource description. * The principle of modularity suggests that metadata formats tailored for simplicity be used alongside others tailored for complexity.