Learn DEWEY DECIMAL CLASSIFICATION

Learn Dewey Decimal Classification (Edition 21) first published in the United States of America by Scarecrow Press, Inc. Disclaimer: Judgments as to the suitability of the information herein for the purposes of the purchaser are necessarily the responsibility of the purchaser. The schedules are the printed, listed classes, divisions, etc. of the schedule, arranged in number order.

The index is an alphabetical list of terms used in the schedules, together with the corresponding notation. This is the ability of the scheme to allow the construction of a notation that includes elements not specifically mentioned in the schedules.

Criteria of a Successful Classification Scheme

Pure notation is the use of only one type of symbol, such as numbers, for example Dewey Decimal Classification 342,569. Mixed notation is the use of more than one type of symbol, such as numbers and letters, for example, Library of Congress Classification TK51011.H37 1994. It should contain, as far as possible, all synonyms for the term and a breakdown of parts of the subject.

Your plan should show a logical system for grouping the animals, although how you do this is up to you.

The Needs of the User

Different Sequences

INTRODUCTION TO DEWEY DECIMAL CLASSIFIC ATION

Introduction

General Characteristics of DDC Hierarchy

Tables in schedules allow aspects or aspects of one subject to be applied to another subject. For example, many aspects of certain animals and groups of animals are listed only once in the schedules, but can be added to any animal with classification numbers between 592 and 599. The relative index groups (links together) different aspects of a subject and the different classes in which they are found.

For example, 9 often represents geography or history, either in class 900 History and geography, or in the standard subdivision -09 Historical, geographic, persons treatment. Some copy cataloging sources, including cataloging-in-publication, show the segmentation of DDC numbers to easily identify shorter numbers.

Advantages of DDC

If segmentation does not appear, consult the schedules to find a meaningful reduced number. As you develop familiarity with DDC, reduction will often be possible without having to consult the schedules.

Disadvantages of DDC

Order of DDC Numbers

PRINCIPLES OF CLA SSIFYING WITH DDC

Basic Principles of Classification 1. Place a work where it will be most useful

If the focus is not obvious, group the work into three or more themes, all of which are subsections of a broader theme, with the first higher number encompassing them all. For work on the architecture of German school buildings, the number for the architecture of school buildings is assigned before the number for Germany is added. If the work has been treated from a particular point of view, classify it in the subject, unless it has been significantly modified.

If a subject does not have a fixed place in the classification scheme, use the number of the subject to which it is most closely related. Works for and against voluntary euthanasia should be on the same number - this reinforces the principle of objectivity in the library's collection.

Classifying with DDC

Broad and Close Classification

E XERCISE 3.2

Citation and Preference Order

Call Numbers

This is easy to use, but does not arrange the works in alphabetical order by author and separates different editions of the same title. This is also easy to use and arranges the works in alphabetical order of the main entry, but some of the call numbers are the same. This places the works in approximate alphabetical order of the main entry, but more care must be taken in assigning book numbers to avoid duplication.

This arranges the works in alphabetical order of main entry, but it requires the use of the table and care to assign the book numbers correctly. It is common for the book number for biographies to be taken from the subject of the biography, rather than the author.

Shelf Listing

COMPONENTS OF THE DEWEY DECIMAL CLASSIFIC ATION

Glossary

Overview—The Summaries Ten Main Classes

The Hundred Divisions

E XERCISE 4.2

The Thousand Sections

E XERCISE 4.3

The Schedules Introduction

Hierarchy in the Schedules

Layout of the Hierarchical Structure

The Tables

The Manual

The Relative Index

If a DDC number is very long, it is more likely to be a specific number or a broad number. Where would you look for a comparison of the use of 550 (geosciences) and 910 (geography and travel).

FINDING A NUMBER IN THE SCHEDULES

Specific Aspects of a Subject

Begin with the Class

Looking for DDC Numbers: A Summary 1. Determine

Searching the Relative Index

E XERCISE 5.2

ORGANIZATION OF THE SCHEDULES

Reading the Schedules

Interpreting the Schedules

Options

Centered Entries

Other Notes

E XERCISE 6.2

E XERCISE 6.4

E XERCISE 6.5

E XERCISE 6.6

NUMBER-BUILDING AND

The Auxiliary Tables

This allows a work to be classified in its main subject and added to it using numbers from Table 1. They can be freely added when necessary to any classification number, although only one is added for a work. The standard subdivision -09 is sometimes combined with figures from Table 2 so that the geographical treatment can be linked to a specific country or place, e.g.

Purposes of Standard Subdivisions Standard subdivisions are used

Principles for Applying Standard Subdivisions

When Not to Use the Standard Subdivisions

How to Add from Table 1

E XERCISE 7.1

Nonstandard” Addition of Standard Subdivisions

Use of -04 for Special Topics

Facet Indicators

Cooking in the Middle Ages 6. History of the social sciences 8. Historical research in public administration 10.

More Than One Standard Subdivision

Using the preference table, which standard subsection would you use for the topic Equipment and teaching in hydraulic engineering. The more specific numbers tend to reflect the large English-speaking users of the classification scheme. The historical periods listed in Table 1 are included in Table 2 so that they can be added in accordance with the instruction for “Add.

Geographic Treatment

Geography The centered entry

History

Periods of History

Other Subjects

E XERCISE 8.3

Adding from Table 2 without Instructions

E XERCISE 8.4

E XERCISE 8.6

E XERCISE 8.7

The 800s are used for works of the imagination; information works must be classified by subject.

Language

A similar set of options is available for Canadian literature in French, Americas literature in Spanish or Portuguese, and for other literature that requires local emphasis. Since practices vary, you should familiarize yourself with the policy and usage of a library you know well. There is a preference table to look up when works have more than one form - e.g. a play on verse.

Period

Other Aspects

Literary Criticism

Adaptations

How to Add from Table 3

A Dutch drama by one author 3. Short stories in English translation by a French author 5. Letters written by a high-ranking Italian lady. Speeches in Catalan by a famous politician 7. Classical Greek poetry by a medieval poet 9. Twentieth-century drama by an Urdu author 10. If the literary form cannot be specified, and if there is a specific period, go to step 4 4 .

E XERCISE 9.3

Complex Numbers for Literature

E XERCISE 9.4

Numbers from these tables are never used alone, and they are only used at all when there is an instruction to add from the corresponding table.

The Language Class

Bilingual Dictionaries

This enables the classifier to construct a number for each subject studied by or in relation to any ethnic or national group. Although the same European accent occurs in this table, it helps the classifier to remember and locate particular numbers that appear in the schedules and some of the tables (eg, Spanish contains -6 in 400, 800 and tables 2, 5, and 6).

Preference Order

Numbers can be added either directly via an instruction, or indirectly by first adding -089 from Table 1 (which does not require a specific instruction).

How to Add from Table 5 With Specific Instructions

ADDING FROM THE SCHEDULES

Adding from the Schedules Look at the following examples from the 900s

Add a Direct Number from Another Part of the Schedules Example: Agricultural libraries

Add Part of a Number

Add from a Table in the Schedules

WEBDEWEY

WebDewey is an online version of the Dewey Decimal Classification developed to increase the usability of the scheme with electronic search capability.

Learning to Use WebDewey

In addition to the classification scheme in the four printed volumes, it provides many additional features. Click on one of the numbers to see an expansion of the hierarchy, notes and LC subject headings. Click on the manual link to see a discussion of the use of the two numbers shown.

MORE PRACTICE

The Rand McNally Guide to the Coast of Massachusetts, New Hampshire and Maine (a work designed to show points of interest in the 1980s) 8.

ANSWERS

The relative index links topics to all their aspects by showing all the numbers for the topic in the different disciplines to which they belong. A relative index brings together different aspects of the same topic that are scattered across different disciplines. His Anglo-American bias is evident in his emphasis on American, English, and European language, literature, and history in the 400s, 800s, and 900s, and Protestantism/Christianity in the 200s.

Changing numbers due to a new edition creates practical problems in libraries, for example the need for reclassification, relabeling and rearrangement. Narrow classification means that each work is classified as specifically as possible, using all available subdivisions in the classification scheme. The glossary (in Part 1) gives the definition: "The rule instructing that works giving equal treatment to three or more subjects which are all subdivisions of a broader subject shall be classified in the first higher number which includes them all." For example, a work on the cultivation of coconuts, avocados and papayas is assigned to the number for the cultivation of tropical and subtropical fruit.

History of glassblowing in Venice in the Middle Ages Main topic: Glassblowing Secondary aspect: history Secondary aspect: in Venice. 364.44 Welfare services in the prevention of crime and delinquency 362.88 Problems and services for victims of crime. Standard subdivisions enable the classifier to make the number more specific by representing a regularly recurring form or treatment as well as the main subject.

When they would be redundant because the figure already covers the concept of the standard subdivision. To ensure that these "standard" treatments of the subject can be shelved in their groups before further subdividing the subject. The table at the beginning of Table 1 indicates which standard subdivision to use if there is more than one possible standard subdivision representing different aspects of the subject.

GLOSSARY

Ranganathan for Indian Libraries, using numbers and letters and a colon to separate different parts of the classification number. Cutter-Sanborn Number An extension of the Cutter author number system, depicted in the Cutter-Sanborn three-figure author chart. An international committee of experts advising on the development of the Dewey Decimal Classification Scheme.

Library of Congress Classification A classification scheme developed by the Library of Congress, using numbers and letters. Moys Classification A specialized classification system for law, devised by Elizabeth (Betty) Moys, based on the Library of Congress Classification law scheme. The topic is narrower than the number it is included in, and number building is not allowed.

Universal Decimal Classification (UDC) A classification scheme developed by the International Federation for Information and Documentation (FID) extending the Dewey Decimal Classification.

INDEX

BIBLIOGRAPHY