Canons of Library Classification By Bhupendra Ratha, Lecturer School of Library and Information Science Devi Ahilya University, Indore

Canons of library classification The first used of “Canons of library 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”. The first used of “Canons of library 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”.

Groups of Canons Canons of Characteristic Canons of Characteristic Canons of array of classes Canons of array of classes Canons of Chain of classes Canons of Chain of classes Canons of Filiatory sequence Canons of Filiatory sequence Canons of Terminology Canons of Terminology Canons of Notation Canons of Notation

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

Differentiation Efficiency should be available for the classification of some thing. For ex: Students UG PG Science Arts Commerce Physics chemistry Science

Concomitance Two characteristics should not use for a facet or subject. Two characteristics should not use for a facet or subject. For ex: DOB and Age Ist Edition and Publication date Ist Edition and Publication date

Relevance Every characteristic should be related to objective of classification. Every characteristic should be related to objective of classification. For ex: English language French language French language

Ascertainability Every characteristics should fully ascertain. Every characteristics should fully ascertain. For ex Literature

Permanence Every characteristics should be permanence whenever do not change in objective of classification. Every characteristics should be permanence whenever do not change in objective of classification. For ex. Changing the name of Periodical time to time.

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

Consistency In the scheme should be use of some permanent characteristics according to their sequence. In the scheme should be use of some permanent characteristics according to their sequence. For ex: O[P],[P2][P3],[P4] O[P],[P2][P3],[P4]

Canons of Array of Classes The array of class called to arranged sequence of class according to their importance. Exhaustiveness Exhaustiveness Exclusiveness Exclusiveness Helpful sequence Helpful sequence Consistent sequence Consistent sequence

Exhaustiveness In this canons the arrangement of other things. In this canons the arrangement of other things. For ex: For ex: Non Christian religious 290 Non Christian religious 290 other languages 490 other languages 490 Literature of other lang. 890 Literature of other lang. 890

Exclusiveness Exclusiveness should be available in the classes or subclasses. Exclusiveness should be available in the classes or subclasses. For ex: For ex: world world Asia EuropeAfricaNorth America South America

Helpful sequence In any array of classes arrangement of class or sub-class should be in helpful sequence. In any array of classes arrangement of class or sub-class should be in helpful sequence. Helpful order within the groups of subjects. Helpful order within the groups of subjects.

Consistent sequence

Canons of Chain of Classes Decreasing extension Decreasing extension Modulation Modulation

Decreasing extension For ex: For ex: Asia4 Asia4 India 44 India 44 M.P.4455 M.P.4455

Modulation World World World World Europe Europe Great Britain Great Britain Great Britain Great Britain England England London London London London

Canons of Filiatory sequence Subordinate class Subordinate class Co-ordinate class Co-ordinate class

Subordinate class Asia 5 India 54 Western India 547 Gujarat 5475

Co-ordinate class World World Asia Africa Europe

Canons of Terminology Currency Currency Reticence Reticence Enumerative Enumerative Context Context

Currency Use of recent or current words in classification scheme. Use of recent or current words in classification scheme.

Reticence Use of words should not criticized in classification scheme. Use of words should not criticized in classification scheme. For ex: In the 14 th ed of DDC use the “minor” word for some authors. For ex: In the 14 th ed of DDC use the “minor” word for some authors.

Enumerative Description of every enumerative words in classification scheme Description of every enumerative words in classification scheme For ex: Philosophy and psychology For ex: Philosophy and psychology in DDC or CC in DDC or CC

Context Context should be given for word that use in different main class. Context should be given for word that use in different main class. For ex: Insurance For ex: Insurance Tax Tax Textile Textile

Canons of Notation It should be decide that which type notation use for classification. It should be decide that which type notation use for classification. Relativity Relativity Expressiveness Expressiveness Mixed notation Mixed notation

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

Expressiveness Expressiveness should be for every facet. Expressiveness should be for every facet. For ex: Treatment of lungs in India For ex: Treatment of lungs in India L45:4:6.44 L45:4:6.44

Mixed notation Mixed notation should be use in classification. Mixed notation should be use in classification.