an introduction to dewey's decimal classification (ddc)
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DEWEY DECIMAL CLASSIFICATION(DDC)
MELVIL DEWEY
IT’S CALLED THE DEWEY DECIMAL
CLASSIFICATION SYSTEM—OR DDC.
THIS SYSTEM GOT ITS NAME FROM
MELVIL DEWEY, THE MAN WHO HAD
THIS GREAT IDEA FOR ORGANIZING
LIBRARY COLLECTIONS. HE LIVED
FROM 1851 TO 1931 AND
INTRODUCED THE DDC IN 1876
THE DDC HELPS LIBRARIES ARRANGE THE ITEMS SO THAT LIBRARY USERS CAN FIND THEM
MELVILLE LOUIS KOSSUTH DEWEY WAS BORN ON 10 DEC 1851 IN NEW YORK.HE WAS SON OF A HUMBLE SMALL STOREKEEPER
IN 1870 HE JOINED AS STUDENT INAMHERST COLLEGE AND GRADUATED IN 1874
IN 1872 HE JOINED COLLEGE LIBRARY AS A PART TIME LIBRARIAN
IN 1873 HE PREPARED A PLAN OF DECIMAL CLASSIFICATION WHICH WAS IMPLEMENTED AND APPROVED BY THE LIBRARY STAFF AND FINALLY PUBLISHED IN 1876
STORY OF MELVIL DEWEY
DEWEY DECIMAL CLASSIFICATION DDC IS MOST WIDELY USED CLASSIFICATION SYSTEM
MORE THAN 138 COUNTRIES USE DDC
PUBLISHED BY OCLC (ONLINE COMPUTER LIBRARY CENTRE,INC) IN FULL AND ABRIDGED EDITIONS
THE DDC HAS BEEN TRANSLATED INTO OVER THIRTY LANGUAGES
PRESENTLY 23RD EDITION IS IN USE
DEWEY DECIMAL CLASSIFICATION DDC IS DIVIDED INTO :-
10 MAIN CLASSES (COVERS ENTIRE WORLD OF KNOWLEDGE)
EACH MAIN CLASS IS SUBDIVIDED IN 10 DIVISIONS
EACH DIVISION IS SUBDIVIDED INTO 10 SECTIONS
EACH SUBDIVISION IS DIVIDED INTO FORM DIVISIONS
DEWEY DECIMAL CLASSIFICATION THE MAIN STRUCTURE OF THE DDC IS PRESENTED IN THE DDC SUMMARIES IN THE BEGINNING OF THE VOL-2 :-
1ST SUMMARY : 10 MAIN CLASSES
2ND SUMMARY : 100 DIVISIONS
3RD SUMMARY : 1000 SECTIONS
NOTATION OF DDC ARABIC NUMERALS ARE USED TO REPRESENT EACH CLASS
THE DDC USES THE CONVENTION THAT NO NUMBER SHOULD BE FEWER THAN THREE DIGITS.
1ST DIGIT REPRESENT THE MAIN CLASS 500 - SCIENCE
2ND DIGIT INDICATES DIVISION 510 - MATHEMATICS 520 - ASTRONOMY 530 - PHYSICS
3RD DIGIT INDICATES SECTION 530 - GENERAL WORKS ON PHYSICS 531 - CLASSICAL MECHANICS 532 - FLUID MECHANICS 533 - GAS MECHANICS
NOTATION OF DDC A DECIMAL POINT, OR DOT (.), FOLLOWS THE THIRD DIGIT IN A CLASS NUMBER, AFTER WHICH DIVISION BY TEN CONTINUES TO THE SPECIFIC DEGREE OF CLASSIFICATION NEEDED
THE DOT (.) IS NOT A DECIMAL IN THE MATHEMATICAL SENSE, BUT A PSYCHOLOGICAL PAUSE TO BREAK THE MONOTONY OF NUMERICAL DIGITS AND TO EASE THE TRANSCRIPTION AND COPYING OF THE CLASS NUMBER
THE NUMBER SHOULD NEVER END IN ‘0’ ANYWHERE TO THE RIGHT OF THE DECIMAL POINT
1ST SUMMARYTHE TEN MAIN CLASSES
1ST SUMMARYTHE TEN MAIN CLASSES
000 COMPUTER SCIENCE, INFORMATION & GENERAL WORKS100 PHILOSOPHY & PSYCHOLOGY200 RELIGION300 SOCIAL SCIENCES400 LANGUAGE500 SCIENCE600 TECHNOLOGY700 ARTS & RECREATION800 LITERATURE900 HISTORY & GEOGRAPHY
2ND SUMMARYTHE HUNDRED DIVISIONS
(000) COMPUTER SCIENCE, INFORMATION
& GENERAL WORKS000 COMPUTER SCIENCE, INFORMATION & GENERAL WORKS010 BIBLIOGRAPHIES020 LIBRARY & INFORMATION SCIENCE030 ENCYCLOPEDIAS & BOOKS OF FACTS040 [UNASSIGNED]050 MAGAZINES, JOURNALS & SERIALS060 ASSOCIATIONS, ORGANISATIONS & MUSEUMS070 NEWS MEDIA, JOURNALISM & PUBLISHING080 QUOTATIONS090 MANUSCRIPT & RARE BOOKS
2ND SUMMARYTHE HUNDRED DIVISIONS
(100) PHILOSOPHY & PSYCHOLOGY
100 PHILOSOPHY
110 METAPHYSICS
120 EPISTEMOLOGY
130 PARAPSYCHOLOGY & OCCULTISM
140 PHILOSOPHICAL SCHOOLS OF THOUGHTS
150 PSYCHOLOGY
160 PHILOSOPHICAL LOGIC
170 ETHICS
180 ANCIENT, MEDIEVAL & EASTERN PHILOSOPHY
190 MODERN WESTERN PHILOSOPHY
2ND SUMMARYTHE HUNDRED DIVISIONS
(200) RELIGION
200 RELIGION
210 PHILOSOPHY & THEORY OF RELIGION
220 THE BIBLE
230 CHRISTIANITY
240 CHRISTIAN PRACTICE & OBSERVANCE
250 CHRISTIAN PASTORAL PRACTICE & RELIGIOUS ORDER
260 CHRISTIAN ORGANISATION, SOCIAL WORK & WORSHIP
270 HISTORY OF CHRISTIANITY
280 CHRISTIAN DENOMINATIONS
290 OTHER RELIGIONS
2ND SUMMARYTHE HUNDRED DIVISIONS
(300) SOCIAL SCIENCES
300 SOCIAL SCIENCE, SOCIOLOGY & ANTHROPOLOGY
310 STATISTICS
320 POLITICAL SCIENCE
330 ECONOMICS
340 LAW
350 PUBLIC ADMINISTRATION & MILITARY SCIENCE
360 SOCIAL PROBLEMS & SOCIAL SERVICES
370 EDUCATION
380 COMMERCE, COMMUNICATION & TRANSPORTATION
390 CUSTOMS, ETIQUETTE & FOLKLORE
2ND SUMMARYTHE HUNDRED DIVISIONS
(400) LANGUAGE
400 LANGUAGE
410 LINGUISTICS
420 ENGLISH & OLD ENGLISH LANGUAGE
430 GERMAN & RELATED LANGUAGE
440 FRENCH & RELATED LANGUAGE
450 ITALIAN, ROMANIAN & RELATED LANGUAGES
460 SPANISH, PORTUGUESE, GALICIAN
470 LATIN & ITALIC LANGUAGE
480 CLASSICAL & MODERN GREEK LANGUAGE
490 OTHER LANGUAGES
2ND SUMMARYTHE HUNDRED DIVISIONS
(500) SCIENCE
500 SCIENCE
510 MATHEMATICS
520 ASTRONOMY
530 PHYSICS
540 CHEMISTRY
550 EARTH SCIENCE
560 FOSSILS & PREHISTORIC LIFE
570 BIOLOGY
580 PLANTS (BOTANY)
590 ANIMALS (ZOOLOGY)
2ND SUMMARYTHE HUNDRED DIVISIONS
(600) TECHNOLOGY
600 TECHNOLOGY
610 MEDICINE & HEALTH
620 ENGINEERING
630 AGRICULTURE
640 HOME & FAMILY MANAGEMENT
650 MANAGEMENT & PUBLIC RELATIONS
660 CHEMICAL ENGINEERING
670 MANUFACTURING
680 MANUFACTURE FOR SPECIFIC USE
690 CONSTRUCTION OF BUILDINGS
2ND SUMMARYTHE HUNDRED DIVISIONS
(700) ARTS & RECREATION
700 ARTS
710 AREA PLANNING & LANDSCAPE ARCHITECTURE
720 ARCHITECTURE
730 SCULPTURE, CERAMICS & METALWORK
740 GRAPHIC ARTS & DECORATIVE ARTS
750 PAINTING
760 PRINTMAKING & PRINTS
770 PHOTOGRAPHY, COMPUTER ARE, FILM, VIDEO
780 MUSIC
790 SPORTS, GAMES & ENTERTAINMENT
2ND SUMMARYTHE HUNDRED DIVISIONS
(800) LITERATURE
800 LITERATURE, RHETORIC & CRITICISM
810 AMERICAN LITERATURE IN ENGLISH
820 ENGLISH & OLD ENGLISH LITERATURES
830 GERMAN & RELATED LITERATURES
840 FRENCH & RELATED LITERATURES
850 ITALIAN, ROMANIAN & RELATED LITERATURES
860 SPANISH, PORTUGUESE, GALICIAN LITERATURE
870 LATIN & ITALIC LITERATURES
880 CLASSICAL & MODERN GREEK LITERATURES
890 OTHER LITERATURES
2ND SUMMARYTHE HUNDRED DIVISIONS
(900) HISTORY & GEOGRAPHY
900 HISTORY
910 GEOGRAPHY & TRAVEL
920 BIOGRAPHY & GENEALOGY
930 HISTORY OF THE ANCIENT WORLD (TO CA. 499)
940 HISTORY OF EUROPE
950 HISTORY OF ASIA
960 HISTORY OF AFRICA
970 HISTORY OF NORTH AMERICA
980 HISTORY OF SOUTH AMERICA
990 HISTORY OF OTHER AREAS
3RD SUMMARYTHE THOUSAND SECTIONS
(510) MATHEMATICS
510 MATHEMATICS
511 GENERAL APPLICATION OF MATHEMATICS
512 ALGEBRA
513 ARITHMETIC
514 TOPOLOGY
515 ANALYSIS
516 GEOMETRY
517 [UNASSIGNED]
518 NUMERICAL ANALYSIS
519 PROBABILITIES & APPLIED MATHEMATICS
3RD SUMMARYTHE THOUSAND SECTIONS
(530) PHYSICS
530 PHYSICS
531 CLASSICAL MECHANICS
532 FLUID MECHANICS
533 GAS MECHANICS
534 SOUND & RELATED VIBRATIONS
535 LIGHT & RELATED VIBRATIONS
536 HEAT
537 ELECTRICITY
538 MAGNETISM
539 MODERN PHYSICS
OVERVIEW OF DDC DDC IS BUILT ON SOUND PRINCIPLES
NOTATIONS ARE UNIVERSALLY RECOGNIZED
CATEGORIES ARE WELL DEFINED
HIERARCHIES ARE WELL DEVELOPED
BASIC CLASSES ARE ORGANISED BY DISCIPLINES OF FIELD OF STUDY
PRINCIPAL OF HIERARCHYSTRUCTURAL HIERARCHY
ALL TOPICS ARE PART OF THE BROADER TOPICS ABOVE THEM
NOTATIONAL HIERARCHYNUMBER AT ANY GIVEN LEVEL IS USUALLY SUBORDINATE
TO A CLASS WHOSE NOTATION IS ONE DIGIT SHORTER
600 TECHNOLOGY (APPLIED SCIENCE)630 AGRICULTURE & RELATED TECHNOLOGIES636 ANIMAL HUSBANDRY636.7 DOGS636.8 CATS
NOTATIONAL HIERARCHY
700 THE ARTS720 ARCHITECTURE
725 PUBLIC STRUCTURE725.8 RECREATIONAL STRUCTURE
725.82 BUILDING FOR SHOWS & SPECTACLES725.822 THEATER AND OPERA BUILDING
CLASSIFICATION WITH THE DDC
DETERMINE SUBJECT
DETERMINE DISCIPLINE
DETERMINE FORM OR APPROACH
Classify according to subject & discipline and then the form in which the subject is presented
Always consider the authors intention
classify the Book on two or more subject under the predominates subject
If there is no subject in classification scheme classify under allied subject
Avoid classification, which is in nature of criticism
Classify according to usefulness a particular place
BASIC RULES OF CLASSIFICATION
DETERMINING SUBJECT THE KEY ELEMENT IN DETERMINING THE SUBJECT IS THE AUTHOR’S INTENT AND TO UNDERSTAND THE SAME REFER THE FOLLOWING :-
TITLE TABLE OF CONTENTS CHAPTER HEADINGS CHAPTER SUBHEADINGS PREFACE & INTRODUCTION SCAN THE TEXT BIBLIOGRAPHICAL REFERENCE REVIEW & REFERENCE WORK
DETERMINING DISCIPLINE AFTER DETERMINING THE SUBJECT - SELECT THE PROPER DISCIPLINE, OR FIELD OF STUDY, OF THE WORK
SELECT DISCIPLINE FOR WHICH IT IS INTENDED, RATHER THAN THE DISCIPLINE FROM WHICH THE WORK DERIVES
DISCIPLINE CLASS NUMBER
MILITARY SCIENCE 355
MILITARY ETHICS 172.42
MILITARY ENGINEERING 623
MILITARY MEDICINE 616.980 23
MILITARY MUSIC 781.599
DETERMINING FORM
AFTER DETERMINING SUBJECT & DISCIPLINE, TURN TO SUMMARIES AND SCHEDULES
GO THROUGH NOTES IN THE SCHEDULES
REFER RELATIVE INDEX FOR DETERMINING EXACT CLASS NUMBER
MODIFICATION OF CLASSIFICATION SCHEME
FICTION ALL WORKS OF FICTION AT BE MARKED ‘F’ AND TAKEN OUT OF THE SEQUENCE IN 800 AND ARRANGED IN A SEPARATE SEQUENCE ALPHABETICALLY BY NAMES OF AUTHORS
POETRY & DRAMA POETRY & DRAMAS IN SOME LANGUAGES ARE AMALGAMATED AND ALPHABETISED
BIOGRAPHY ALL BIOGRAPHICAL WORKS ARE MARKED ‘B’ AND ARRANGED ALPHABETICALLY
HISTORICAL FICTION MAY BE CLASSIFIED WITH FICTION
CHILDREN BOOKS MAY BE MARKED ‘J’ FOLLOWED BY THE NUMBER ACCORDING TO DDC
MERITS OF DDC SUBJECT IS DOMINANT FACTOR AND EACH SUBJECT HAVE A PERMANENT PLACE
CONSISTENT AND EXHAUSTIVE
PROCEED TO GREAT EXTENSION TO SMALL EXTENSION SMALL INTENTION TO GREAT INTENSION
SIMPLE NOTATION
USE MNEMONIC AIDS WHICH HAVE GENERALLY SAME MEANING IN ENTIRE SCHEME
HAVE AN ELABORATIVE, SYSTEMATIC AND COMPREHENSIVE RELATIVE INDEX
PRACTICAL AND IS OF UNIVERSAL APPLICATION
DEMERITS OF DDC THERE IS NO EVOLUTION IN THE NINE MAIN CLASSES. AS A RESULT LANGUAGE IS SEPARATED FROM ITS FINISHED FORM OF LITERATURE AND HISTORY FROM ITS COLLECTORATE FORM OF SOCIAL SCIENCES. THE SCHEME REPRESENT THE STATE OF KNOWLEDGE OF 1893.
IT FAILS TO MAKE OBVIOUS PROVISIONS FOR SOME TOPICS
LITTLE SCOPE FOR CLASSIFICATION OF SUBJECTS PERTAINING TO ASIA & AFRICA
DUE TO NUMERICAL LIMITATIONS, IN THE CLASSIFICATION OF MINUTE SUBJECTS, LONG STRING OF DECIMAL NUMBERS ARE EMPLOYED
THANKS !
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