Basics of Classification

Using the DDC for Your Library Anggi Hafiz Al Hakam Singapore School – Kelapa Gading Mitchell, Joan S.(ed)(et.al). 1996. Dewey Decimal Classification and Relative Index, Edition 21 . New York: OCLC Online Computer Library Center, Inc.

What It Is and What It Does
Provides a system for organizing knowledge represented in any form e.g., books, documents, electronic records.
Notation is the system of symbols used to represent the classes in a classification system.
Provides a unique identifying code that is used as an “address” on the shelf
A tag for library recordkeeping in circulation and inventory control.

Conceptual Framework
Basic classes are organized by disciplines or fields of study – The parts of the classification are arranged by discipline , not by subject .
As consequence, no single place for a given subject. A subject may appear in any discipline.

Notation
DDC is divided into ten main classes which together cover the entire world of knowledge.
These classes into ten divisions and each divisions into ten sections

Notation (continued)
000 Generalities ( Class )
010 Bibliography ( Division )
100 Philosophy, paranormal phenomena, psychology
150 Psychology
158 Applied Psychology ( Section )
200 Religion
300 Social Sciences
400 Language
500 Natural Sciences and mathematics
600 Technology (Applied Sciences)
700 The Arts Fine and decorative arts
800 Literature and rhetoric
900 Geography, history, and auxiliary disciplines

Principle of Hierarchy
Hierarchy in the DDC is expressed through structure and notation
Structural hierarchy means that all topics (aside from the ten main classes) are subordinate to and part of all the broader topics above it
Notational hierarchy is expressed by length of notation

Classifying with the DDC
Requires determination of the subject, the disciplinary focus, and if applicable, the approach or form

Determining the Subject of a Work
The title is often a clue t the subject, but never be the sole source of analysis
The table of contents may list the main topics discussed
The preface or introduction usually states the author’s purpose
If a foreword is provided, it often indicates the subject of the work and suggests the place of the work in the development of thought on the subject

Determining the Subject…(2)
A Scan of the text itself may provide further guidance or confirm preliminary subject analysis
Bibliographical references and index entries are sources of subject information
Cataloging copy from centralized cataloging services is often helpful by providing subject headings, classification numbers, and notes
Occasionally, consultation of outside sources such as reviews, reference works and subject experts may be required to determine the subject of the work

Basics of Classification

by Anggi Hafiz on Jun 11, 2010

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