Abstract
This paper describes qualities of a library classification system that are commonly discussed in the LIS tradition and literature, and explains such a system’s three main functions, namely knowledge mapping, information retrieval, and shelf arrangement. In this vein, the paper states the functional requirements of bibliographic classifications, which broadly are subject collocation and facilitation of browsing the collection. It explains with details the components of a library classification system and their functions. The major components are schedules, notations, and index. It also states their distinguished features, such as generalia class, form divisions, book numbers, and devices for number synthesis which are not required in a knowledge classification. It illustrates with examples from the WebDewey good examples of added features of an online library classification system. It emphasizes that institutional backup and a revision machinery are essential for a classification to survive and remain relevant in the print and e-environment.
Highlights
Though peripheral, the ‘introduction’ to the system is an integral part of it
A modern library classification is a classification of knowledge as it is contained in documents of all sorts
The library classification enables items in a library catalogue to be located from the shelves. 2. It is a tool for information retrieval; hierarchy allows the broadening and narrowing of search by truncating a class number from the right; all the alphabetical subject access tools such as subject headings lists, thesauri, and ontologies inherently involve classification of one kind or the other
Summary
A classification is a tool for the organization of the phenomena of the universe or any of its parts or constituents It groups objects into categories/classes based on shared properties with the purpose of bringing like items together. A modern library classification is a classification of knowledge as it is contained in documents of all sorts It came into being for the purpose of arranging and retrieving information resources. A modern library classification is more than knowledge classification, and beyond grouping it has many intellectual and mechanical functions to perform. National general schemes are universal in subject coverage, but intended for use in a single country. It has its anatomy (hardware) showing its visible and invisible components, each of which has its supporting functions (physiology)
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