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The “System for Information on Grey Literature in Europe” (SIGLE) was established in 1980, two years after a seminar on grey literature organised by the European Commission in York (UK). Operated by a network of national information or document supply centres active in collecting and promoting grey literature, SIGLE was an on line, pan-European electronic bibliographic database and document delivery system. The objective was to provide access to European grey literature and to improve bibliographic coverage. From 1980 to 1985, SIGLE was funded by the Commission of the European Communities (CEC). When CEC financial support ended in 1985, the national centres formed a network for the acquisition, identification and dissemination of grey literature called “European Association for Grey Literature Exploitation” or EAGLE, who became the producer of the SIGLE database. Input to the database ended in 2005 when the EAGLE General Assembly decided the liquidation of the network. In 2007, together with the last EAGLE operating agent, FIZ Karlsruhe, the French STI centre INIST-CNRS integrated the SIGLE records into a new open access database called OpenSIGLE hosted by INIST-CNRS. == SIGLE characteristics == For each SIGLE member country, one or two national structures assumed the acquisition, referencing and document delivery of grey literature, mostly national libraries (UK, Luxembourg) or documentation centres of national research organizations (Italy, France, Germany). Merging of the national files was done by an independent operating agent under contract and the database was hosted on up to three different servers. A CD-ROM was produced from 1992 on by Silverplatter/Ovid Technologies. Cataloguing rules and classification scheme were adopted from the International Nuclear Information System (INIS) database produced by the IAEA (International Atomic Energy Agency). The SIGLE classification was derived from the American COSATI scheme. One important difference to INIS was that SIGLE never included serials (only collections of monographs) and never provided records on an analytical level (book or report chapters, communications from conference proceedings etc.). Each SIGLE record contained informative titles in English and/or in the original language, the author’s name, academic degree, and the research organization or educational institution, the document’s date of publication and type, number of pages, report numbers, and language, as well as subject classifications. Many records include keywords and abstracts. Each national structure sent records in its own language. A search through the entire database was made possible through providing an English translation of the title or English keywords. One of these fields was mandatory. This constraint may seem irrelevant but for some countries it was a considerable barrier to increased input. One of the goals of SIGLE from the beginning was to facilitate access to grey documents in Europe. Therefore: *Each record contained a clear mention of availability (with or without shelf number). *Each member country committed to supply the referenced document on demand, whether from its own collections or through interlending service by back-up libraries. *Useful information on document supply (addresses, conditions) was given on specific help pages or in user-guides. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「System for Information on Grey Literature in Europe」の詳細全文を読む スポンサード リンク
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