Special feature : Metadata. Metadata ―Dublin Core and related issues― |
| Shigeo SUGIMOTO (Faculty of Library and Information Science, University of Library and Information Science) |
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Abstract : Metadata, which is known as “data about data", is a very important aspect for the Internet and digital libraries because it plays essential roles for resource discovery and information access, i.e., information retrieval in heterogeneous environment, terms and conditions to access resources, etc. This article describes the Dublin Core Metadata Element Set (Dublin Core) which is defined as a metadata for resource discovery and Resource Description Framework (RDF) which is a framework of metadata description being developed by the World Wide Web Consortium (W3C). It also describes the topics discussed at the 6th Dublin Core Workshop held in November 1998 at the Library of Congress. |
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Keywords : Metadata / Dublin Core Metadata Element Set / Resource Description Framework (RDF) / Digital Library / Internet / World Wide Web (WWW) |
Special feature : Metadata. Library Catalog and Metadata |
| Shigeki SUGITA (Library Information System Section, Hokkaido University Library) |
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Abstract : Methods of describing networked objects are to be standardized for resource discovery. Dublin Core Metadata Element Set (RFC2413) is expected to be useful for describing not only networked objects but any kind of metadata. With the element set, information systems would have interoperability each other. Then, what can libraries do for the Internet community with library catalog and how should we prepare for it? This report disucusses the closswalk between metadata and library catalog ; Dublin Core Metadata Element Set and NACSIS-CAT. |
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Keywords : library catalog / metadata / dublin core metadata element set / closswalk / NACSIS-CAT |
Special feature : Metadata. XML and Metadata |
| Atsuhito MOMMA (IT Business Development Center, Fuji Xerox Co., Ltd.) |
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Abstract : In this paper, the usage of XML as a representation format for metadata is introduced. XML is an international standard of description language for Internet documents. W3C, an organization for international standards on WWW such as XML, is also preparing RDF, an international standard for a general-purpose metadata description framework. Existing metadata standards such as PICS and Dublin Core are being integrated as applications of RDF. XML is used as the interchange format for RDF metadata. In this paper, fundamental specifications of XML that are used in RDF are introduced. Then, basic data model on RDF and the XML representations for RDF metadata are described. |
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Keywords : XML / RDF / metadata / WWW / W3C / document types / schema |
Special feature : Metadata. A directory of academic WWW resources based on metadata |
| Keisuke KAMIMURA (Center for Global Communications, International University of Japan) |
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Abstract : The Center for Global Communications, International University of Japan, has constructed and operated the Online Resource Locator (OReL), which is an Internet directory of WWW resources. The directory, in order to provide easy access to quality information, stores in database the metadata of various scientific literature which are scattered on the WWW. The database is based on the Dublin Core metadata set. In OReL, reference between metadata and the original data is made according to the external reference model, which is given independently of the authors and administrators of the original data. In constructing OReL, excellent operation that full-text search services cannot achieve is done by way of finding implicit metadata which is inherent but not represented in contexts. |
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Keywords : WWW / Metadata / Academic resources / Document-like object / Directory / Search |
Special feature : Metadata. Outline of the DOI (Digital Object Identifiers) system |
| Toyohiro HASEGAWA (Tsurumi University Library) |
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Abstract : The Digital Object Identifier (DOI) system has been designed to overcome the impermanence of URLs and to identify and track digital media at any desired level of granularity. The DOI System has been designed to link customers with publishers, facilitate electronic commerce, and enable copyright management systems. Widespread implementation of this system promises to have a profound effect on library functions and services, from ILL to online catalogs. |
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Keywords : Digital Object Identifier / DOI / Serials identifire code |
Examining PubMed : Its evaluation and appropriate usage from online searchers' viewpoint |
| Japan Online Information Retrieval Users Group Life Science Section |
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Abstract : Life Science section members in OUG, Japan Online Information Retrieval Users Group, evaluated the function and contents of PubMed, a free Medline by NLM available on the Internet, comparing with one of commercial Medline Web products, DataStar Web, from online searchers' viewpoint. We investigated it using same search topics, same search items, search strategy save function and other functions. As a result, we ensure that PubMed is a user-friendly database as same as DataStar Web. However, PubMed should be used on the understanding its function and contents. We recommend it depending on search purpose for appropriate use, since PubMed is the in-process database of Medline, which differs data display orders, data contents and so on. |
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Keywords : NLM / Medical Information / Database / MEDLINE / Free Site / Internet / Searching / Searcher / End-user |