The paper highlights some aspects of the UDC management policy for 2007 and onwards. Following an overview of the long history of modernization of the classification, which started in the 1960s and has influenced the scheme's revision and development since 1990, major changes and policies from the recent history of the UDC revision are summarized. The perspective of the new editorial team, established in 2007, is presented. The new policy focuses on the improved organization and efficiency of editorial work and the improvement of UDC products.

The authors presents a tool developed by the Dutch company Magna View that enables the visual representation of the content of the UDC Master Reference File (UDC MRF). The tool contains a pre-processed UDC MRF and allows visualization of, for instance, hierarchy levels, number of classes within a hierarchy and provides an overview of UDC number distribution across all fields of knowledge. The tool is aimed at users and developers who work with and utilize the UDC MRF and can benefit from different kinds of classification data representation.

Many commercial full-text databases and digital libraries provide keyword and preferred-term (subject) indexing, but few allow participatory tagging of content by users or provide ontologies in support of natural language information retrieval. Consequently, keyword and subject searching strategies still matter. But keyword searching, because it can yield results high in recall and low in precision, is often seen as a beginner's strategy best replaced by subject searching using authoritative headings and descriptors. In certain circumstance explored in this essay, keyword searching may be quite effective in and of itself for retrieving digitized primary sources for the study of history.

Over 45 years ago it was decided to move the class 4 for Language to the section 8 together with Literature. Since then class 4 has not been used. A recent master thesis at the school of librarianship in Boras , â UDC, A Proposal to Basic Class 4â by Fredrik Hultqvist, (Magisteruppsats; 2006:39) proved the possibility of moving Medicine from the section 61 to the empty class 4. This is not a new idea, but has never been implemented. Reasons are given to support this proposal, based on the need to find a better collocation of the subject while at the same time providing a solution for shorter notations.

Different approaches to the classification of a knowledge field include empiristic, rationalistic, historicist, and pragmatic methods. The article demonstrates how these different methods have been applied to the classification of psychology. It shows how basic epistemological assumptions have formed the different approaches to psychology during the 20th century. The progress in the understanding of basic philosophical questions is decisive both for the development of a knowledge field and as the point of departure of classification. Applies the theoretical principles developed in a brief analysis of some concrete classification systems, including the one used by PsycINFO/Psychological Abstracts. Also briefly discusses the role of classification in modern information retrieval.

This presentation at the Seventh ISKO Conference in Granada, Spain, highlights the important ideas behind the paper, A Classification of Models that is available in the Conference Proceedings. It provides a succinct definition of scientific models and identifies the underlying premises and promises of knowledge structures and classification pinciples for organizing these complex objects and intellectual constructs. Facets of scientific models are listed and described. Smiraglia's definition of works is used along with facet analysis theory and findings about science learning skills.

This paper discusses the development of the Polar UDC. It examines some elements of the UDC specific to the Polar context, in particular the geographical auxiliary schedule. Some future plans for the implementation of UDC in a library and also in a museum context are outlined.

The recent phenomenon of "social tagging" or "distributed indexing" raises a number of questions regarding long-held beliefs and practices of the classification and indexing community. This workshop paper covers several of these issues, such as locus of authority, control, and meaning, and suggests we may be observing the emergence of a new paradigm of knowledge organization.

See also Matienzo, Mark A. (2006) Review of Memory Practices in the Sciences, by Geoffrey C. Bowker. Journal of the Association for History and Computing 9(2) deposited in dLIST. / A review of Memory Practices in the Sciences by Geoffrey Bowker, Cambridge MA: The MIT Press, 2005

Scientific models are critical, analytical tools and objects that can be included in digital libraries. This paper presents a preliminary classification scheme for the cataloging of scientific models. Scientific models are defined as works and the classification is based on facet analysis and corroborated by an user study.