Search (10 results, page 1 of 1)

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Abstract

An awareness exists among Italian librarians of the need for an established code of ethics for library reference services. Considers the principles that such a code should incorporate; the US Commitment to Information services, for example, affirms users' rights of access to library books and resources, regardless of content and opinions expressed. Censoship is opposed and people are not barred from library use for ethnis, social or religious reasons. An ethical code would require library staff to be impartial, give attention and respect to users, allocate time properly, and avoid prejudice. Discusses the problems of library ethics which arise when user requests relate to sensitive topics e.g. euthansia, cocaine refining

Date

6. 4.1996 13:22:31

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Abstract

Describes the work of mediaeval librarians such as Paulaus Melissus and looks at current problems in cataloguing bibliographies. One of these is that the material used does not have the precise algorithmic format required by information technology; today's electronic cataloguing methods are merely a translation of the former manual ones e.g. book title keywords, and have similar defects. Analyses the 3 basi features of books i.e. text, text edition and materials used, and criticises traditional indexing methods

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Abstract

Considers the development in subject heading systems in Europe and America in recent years. Presents these developments in terms of the indexing languages used, the methods of subject analysis used, and the instruments comprised by the different systems (e.g. the rules governing the control of vocabulary and the construction of strings). Discusses the principles underlying the systems

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Abstract

Describes the origins and development to date of OLUC, the worldwide bibliographic database of OCLC launched by Ohio College in 1971. OLUC now has over 34m records, with publications in 400 languages. Aftere arly criticism of database accuracy, OCLC began quality improvement programmes in the 1990s, introducing the TechPro 'turnkey cataloguing' and Prompt-Cat acquisitions services. Explains how OLUC solved the 3 problems of duplicated records, sparse bibliographic data, and too many author and subject headings. OCLC has invested heavily in improving data quality, launching an authority control service in early 1996. Provides details of several cooperation programmes started by OCLC, e.g. Conser, USNP, NACO, Enhance and others

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Footnote

The guide Nuovo soggettario was presented on February 8' 2007 at a one-day seminar in the Palazzo Vecchio, Florence, in front of some 500 spellbound people. The Nuovo soggettario comes in two parts: the guide in book-form and an accompanying CD-ROM, by way of which a prototype of the thesaurus may be accessed on the Internet. In the former, rules are stated; the latter contains a pdf version of the guide and the first installment of the controlled vocabulary, which is to be further enriched and refined. Syntactic instructions (general application guidelines, as well as special annotations of particular terms) and the compiled subject strings file have yet to be added. The essentials of the new system are: 1) an analytic-synthetic approach, 2) use of terms (units of controlled vocabulary) and subject strings (which represent subjects by combining terms in linear order to form syntactic relationships), instead of main headings and subdivisions, 3) specificity of terms and strings, with a view to the co-extension of subject string and subject matter and 4) a clear distinction between semantic and syntactic relationships, with full control of them both. Basic features of the vocabulary include the uniformity and univocality of terms and thesaural management of a priori (semantic) relationships. Starting from its definition, each term can be categorially analyzed: four macro-categories are represented (agents, action, things, time), for which there are subcategories called facets (e.g., for actions: activities, disciplines, processes), which in turn have sub-facets. Morphological instructions conform to national and international standards, including BS 8723, ANSI/ NISO Z39.19 and the IFLA draft of Guidelines for multilingual thesauri, even for syntactic factorization. Different kinds of semantic relationships are represented thoroughly, and particular attention is paid to poly-hierarchies, which are used only in moderation: both top terms must actually be relevant. Node labels are used to specify the principle of division applied. Instance relationships are also used.
An entry is structured so as to present all the essential elements of the indexing system. For each term are given: category, facet, related terms, Dewey interdisciplinary class number and, if necessary; definition or scope notes. Sources used are referenced (an appendix in the book lists those used in the current work). Historical notes indicate whenever a change of term has occurred, thus smoothing the transition from the old lists. In chapter 5, the longest one, detailed instructions with practical examples show how to create entries and how to relate terms; upper relationships must always be complete, right up to the top term, whereas hierarchies of related terms not yet fully developed may remain unfinished. Subject string construction consists in a double operation: analysis and synthesis. The former is the analysis of logical functions performed by single concepts in the definition of the subject (e.g., transitive actions, object, agent, etc.) or in syntactic relationships (transitive relationships and belonging relationship), so that each term for those concepts is assigned its role (e.g., key concept, transitive element, agent, instrument, etc.) in the subject string, where the core is distinct from the complementary roles (e.g., place, time, form, etc.). Synthesis is based on a scheme of nuclear and complementary roles, and citation order follows agreed-upon principles of one-to-one relationships and logical dependence. There is no standard citation order based on facets, in a categorial logic, but a flexible one, although thorough. For example, it is possible for a time term (subdivision) to precede an action term, when the former is related to the latter as the object of action: "Arazzi - Sec. 16.-17. - Restauro" [Tapestry - 16th-17th century - Restoration] (p. 126). So, even with more complex subjects, it is possible to produce perfectly readable strings covering the whole of the subject matter without splitting it into two incomplete and complementary headings. To this end, some unusual connectives are adopted, giving the strings a more discursive style.

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Date

22. 2.1999 20:40:57

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Date

6. 4.1996 13:22:31

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Date

6. 4.1996 13:22:31

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Date

22. 2.1999 20:41:06