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Abstract

The ways in which notation can be used to express the content of documents to which it relates are various. At the most superficial level notation can correspond to the hierarchical structure of the schedules or link to literal components. The notation of compound concepts can express the structure and composition of the compound, and systems exist in which symbols denote the functional roles of the constituent elements and the relationships between them. At the highest level notation can be used to mirror the actual structure of those entities which it represents, as in the case of mathematical systems or chemical compounds. Methods of displaying these structures are examined, and the practicality in a documentary context is questioned, with particular reference to recent revision work on the chemistry class of the Bliss Bibliographic Classification 2nd edition (BC2)

Date

10. 8.2001 13:22:14

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Source

Extensions and corrections to the UDC. 22(2000), S.43-44

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Abstract

Notations are systems of symbols that can be combined according to syntactical rules to represent meanings in a specialized domain. In knowledge organization, they are systems of numerals, letters and punctuation marks associated to a concept that mechanically produce helpful sequences of them for arranging books on shelves, browsing subjects in directories and displaying items in catalogues. Most bibliographic classification systems, like Dewey Decimal Classification, use a positional notation allowing for expression of increasingly specific subjects by additional digits. However, some notations like that of Bliss Bibliographic Classification are purely ordinal and do not reflect the hierarchical degree of a subject. Notations can also be expressive of the syntactical structure of compound subjects (common auxiliaries, facets etc.) in various ways. In the digital media, notation can be recorded and managed in databases and exploited to provide appropriate search and display functionalities.

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Source

Cataloging and classification quarterly. 22(1996) no.2, S.71-87

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Date

3. 5.1997 8:44:22