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Footnote

Vgl. zur Einführung in die Norm auch die Beiträge von W. Gödert: Bibliothekarische Klassifikationssysteme ... in: Bibliothek: Forschung und Praxis 11(1987) und I. Dahlberg: DIN 32705: ... in: International classification 19(1992)

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Source

Wissensstrukturen und Ordnungsmuster. Proc. der 4. Fachtagung der Gesellschaft für Klassifikation, Salzburg, 16.-19.4.1980. Red.: W. Dahlberg

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Abstract

This book provides a coherent account of the theory of classification. It discusses the contributions made by theoreticians like E.C. Richardson, J.B. Brown, W. Hulme, W.C. Berwick Sayers, H.E. Bliss and S.R. Ranganathan. However, the theory put forward by S.R. Ranganathan predominates the whole book because his contribution is far more than anybody else's. Five major schemes - DDC, UDC, LCC, CC, and BC - have also been discussed. Library classification is a specialized area of study. In recent years, library classification has become a vast and complicated field of study using highly technical terminology. A special attempt has been made to provide descriptions as simple and direct as could be possible. To illustrate the theory of classification, large number of examples have been given from all major schemes so that an average student ould also grasp the concepts easily. This book has been especially written to meet the requirements of students, preparing for their library science, documentation, information science diplomas and degrees.

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Abstract

This paper, presented at the Ottawa Conference an the Conceptual Basis of the Classification of Knowledge, in 1971, is one of Fairthorne's more perceptive works and deserves a wide audience, especially as it breaks new ground in classification theory. In discussing the notion of discourse, he makes a "distinction between what discourse mentions and what discourse is about" [emphasis added], considered as a "fundamental factor to the relativistic nature of bibliographic classification" (p. 360). A table of mathematical functions, for example, describes exactly something represented by a collection of digits, but, without a preface, this table does not fit into a broader context. Some indication of the author's intent ls needed to fit the table into a broader context. This intent may appear in a title, chapter heading, class number or some other aid. Discourse an and discourse about something "cannot be determined solely from what it mentions" (p. 361). Some kind of background is needed. Fairthorne further develops the theme that knowledge about a subject comes from previous knowledge, thus adding a temporal factor to classification. "Some extra textual criteria are needed" in order to classify (p. 362). For example, "documents that mention the same things, but are an different topics, will have different ancestors, in the sense of preceding documents to which they are linked by various bibliographic characteristics ... [and] ... they will have different descendants" (p. 363). The classifier has to distinguish between documents that "mention exactly the same thing" but are not about the same thing. The classifier does this by classifying "sets of documents that form their histories, their bibliographic world lines" (p. 363). The practice of citation is one method of performing the linking and presents a "fan" of documents connected by a chain of citations to past work. The fan is seen as the effect of generations of documents - each generation connected to the previous one, and all ancestral to the present document. Thus, there are levels in temporal structure-that is, antecedent and successor documents-and these require that documents be identified in relation to other documents. This gives a set of documents an "irrevocable order," a loose order which Fairthorne calls "bibliographic time," and which is "generated by the fact of continual growth" (p. 364). He does not consider "bibliographic time" to be an equivalent to physical time because bibliographic events, as part of communication, require delay. Sets of documents, as indicated above, rather than single works, are used in classification. While an event, a person, a unique feature of the environment, may create a class of one-such as the French Revolution, Napoleon, Niagara Falls-revolutions, emperors, and waterfalls are sets which, as sets, will subsume individuals and make normal classes.