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Roszkowski, M.; Lukas, C.: ¬A distributed architecture for resource discovery using metadata (1998)
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- Abstract
- This article describes an approach for linking geographically distributed collections of metadata so that they are searchable as a single collection. We describe the infrastructure, which uses standard Internet protocols such as the Lightweight Directory Access Protocol (LDAP) and the Common Indexing Protocol (CIP), to distribute queries, return results, and exchange index information. We discuss the advantages of using linked collections of authoritative metadata as an alternative to using a keyword indexing search-engine for resource discovery. We examine other architectures that use metadata for resource discovery, such as Dienst/NCSTRL, the AHDS HTTP/Z39.50 Gateway, and the ROADS initiative. Finally, we discuss research issues and future directions of the project. The Internet Scout Project, which is funded by the National Science Foundation and is located in the Computer Sciences Department at the University of Wisconsin-Madison, is charged with assisting the higher education community in resource discovery on the Internet. To that end, the Scout Report and subsequent subject-specific Scout Reports were developed to guide the U.S. higher education community to research-quality resources. The Scout Report Signpost utilizes the content from the Scout Reports as the basis of a metadata collection. Signpost consists of more than 2000 cataloged Internet sites using established standards such as Library of Congress subject headings and abbreviated call letters, and emerging standards such as the Dublin Core (DC). This searchable and browseable collection is free and freely accessible, as are all of the Internet Scout Project's services.
As well developed as both the Scout Reports and Signpost are, they cannot capture the wealth of high-quality content that is available on the Internet. An obvious next step toward increasing the usefulness of our own collection and its value to our customer base is to partner with other high-quality content providers who have developed similar collections and to develop a single, virtual collection. Project Isaac (working title) is the Internet Scout Project's latest resource discovery effort. Project Isaac involves the development of a research testbed that allows experimentation with protocols and algorithms for creating, maintaining, indexing and searching distributed collections of metadata. Project Isaac's infrastructure uses standard Internet protocols, such as the Lightweight Directory Access Protocol (LDAP) and the Common Indexing Protocol (CIP) to distribute queries, return results, and exchange index or centroid information. The overall goal is to support a single-search interface to geographically distributed and independently maintained metadata collections.
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Barker, P.: ¬A study of the use of the X.500 directory for bibliographic querying (1995)
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- Abstract
- Reports on the work of the ABDUX project to investigate the use of the standardized protocol for the X.500 directory service for searching distributed bibliographic databases. It is a joint project between the Computer Science Department of the University College London, and the Library and Computer Service of Brunel University, UK. Gives a design overview and discusses the implementation phase of the project which involved: enhancements to an X.500 system; implementing user interfaces; and gathering test data for the system. Examines experiences with the system, and assesses why interest in the system has been less than hoped for. Puts forward a model for bibliographic querying which recognises the role of other protocols. Summarizes the main lessons to be drawn from the project
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Dupuis, P.; Lapointe, J.: Developpement d'un outil documentaire à Hydro-Quebec : le Thesaurus HQ (1997)
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- Source
- Argus. 26(1997) no.3, S.16-22
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Dempsey, L.; Russell, R.; Kirriemur, J.W.: Towards distributed library systems : Z39.50 in a European context (1996)
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- Source
- Program. 30(1996) no.1, S.1-22
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Ashton, J.: ONE: the final OPAC frontier (1998)
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- Source
- Select newsletter. 1998, no.22, Spring, S.5-6
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Lunau, C.D.: Z39.50: a critical component of the Canadian resource sharing infrastructure : implementation activities and results achieved (1997)
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- Date
- 3. 3.1999 17:22:57
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Burrows, T.: ¬The virtual catalogue : bibliographic access for the virtual library (1993)
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- Date
- 8.10.2000 14:47:22
-
Nicholson, D.; Steele, M.: CATRIONA : a distributed, locally-oriented, Z39.50 OPAC-based approach to cataloguing the Internet (1996)
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- Source
- Cataloging and classification quarterly. 22(1996) nos.3/4, S.127-141
