This document discusses the canons of library classification, which are principles for developing effective classification systems. It describes several groups of canons, including canons of array of classes, chain of classes, filiatory sequence, terminology, and notation. Some key canons mentioned are differentiation, concomitance, relevance, exhaustiveness, exclusiveness, and relativity. The document provides examples to illustrate how each canon applies to organizing a classification system.

1. Canons of Library
Classification
By
Mr. Umrav Singh,
Librarian
Sri Aurobindo Institute of Technology,
Indore
Email: umravsingh2@gmail.com

2. Canons of library classification

classification” by W C B Sayers then many
library science professionals tried to
development of Canons of library classification
such as E C Richardson, H E Bliss etc. In the
1937 criticized the canons of library
classification by Dr. Ranganathan in his book
“Prolegomena to library classification”.

3. Groups of Canons

 Canons of array of classes
 Canons of Chain of classes
 Canons of Filiatory sequence
 Canons of Terminology
 Canons of Notation

4. Canons of characteristics
 Classification should be according to characteristics
of things, concepts and Substance.
 Differentiation
 Concomitance
 Relevance
 Ascertainability
 Permanence
 Relevant sequence
 Consistency

5. Physics Science
Differentiation
classification of some thing.
For ex: Students
UG PG
Science chemistry
Arts
Commerce

6. Concomitance
 a facet
or subject.
For ex: DOB and Age
Ist Edition and Publication date

7. Relevance
 to
objective of classification.
For ex: English language
French language

8. Ascertainability
 tain.
For ex Literature

9. Permanence
 ence
whenever do not change in objective of
classification.
For ex. Changing the name of Periodical time to
time.

10. Relevant sequence
 e should
be use to objective of classification in relevant
sequence.
For ex: In Literature
MC+Lang+form+time+work
MC+Lang+form+author+work

11. Consistency

permanent characteristics according to their
sequence.
For ex:
O[P],[P2][P3],[P4]

12. Canons of Array of Classes
uence of
class according to their importance.
 Exhaustiveness
 Exclusiveness
 Helpful sequence
 Consistent sequence

13. Exhaustiveness
 things.
 For ex:
Non Christian religious 290
other languages 490
Literature of other lang. 890

14. Exclusiveness
 e
classes or subclasses.
 For ex:
world
Asia Europe Africa NorthAmerica SouthAmerica

15. Helpful sequence
 class or
sub-class should be in helpful sequence.
 Helpful order within the groups of subjects.

16. Consistent sequence

17. Canons of Chain of Classes

 Modulation

18. Decreasing extension

 Asia 4
 India 44
 M.P. 4455

19. Modulation

 Europe
 Great Britain Great Britain
 England
 London London

20. Canons of Filiatory sequence

 Co-ordinate class

21. Subordinate class
India 54
Western India 547
Gujarat 5475

22. Co-ordinate class
Asia Africa Europe

23. Canons of Terminology

 Reticence
 Enumerative
 Context

24. Currency
 ification
scheme.

25. Reticence

classification scheme.
 For ex: In the 14th ed of DDC use the “minor”
word for some authors.

26. Enumerative
 s in
classification scheme
 For ex: Philosophy and psychology
in DDC or CC

27. Context
 use in
different main class.
 For ex: Insurance
Tax
Textile

28. Canons of Notation
 tation
use for classification.
 Relativity
 Expressiveness
 Mixed notation

29. Relativity

For ex: The particular symbols for five
fundamental categories in Colon Classification
such as
[P] , [E] :
[M] ; [S] .
[T] ‘

30. Expressiveness
 acet.
 For ex: Treatment of lungs in India
L45:4:6.44

31. Mixed notation
 ication.