Seminar - Canon of Consistent Sequence
CANON OF CONSISTENT SEQUENCE The Canon directs that ‘whenever similar classes or ranked isolates occur in different arrays, their sequence should parallel in all such arrays, whenever insistence on such a parallelism does not run counter to other more important requirements’. The demand of this Canon is quite simple, that is : (i) in; a scheme for classification proper attention should be given while arranging similar classes and isolates when occurring in different arrays; (ii) the sequence of all such similar classes and isolates should be parallel in all such arrays. The advantage of this being: (i) economy of time and mental energy; (ii) would minimize the load on the memory of both for classifier and the user. HOW TO SECURE CONSISTENT SEQUENCE There are two ways which may be used to secure consistent sequence: (i) Automatic conformity; and (ii) Maintenance of parallel sequence. (i) Automatic conformity: A scheme for classification may prepare one single schedule for classes or ranked isolated, which may be used to form an array in whatever subject it occurs. Examples: DDC is using both the methods to secure automatic conformity to the canon of consistent sequence. 300.3 Encyclopedia of social science 20.3 Encyclopedia of Library science (ii) Maintenance of parallel sequence: The parallel sequence in different arrays may be obtained with the help of principles for Helpful Sequence. However, it is only CC which has specifically provided Principles for Helpful Sequence to obtain parallel sequences of subjects and isolates. Example: DDC and UDC In Medicine in Psychology Eye Vision Ear Hearing Organs of smell Smell Organs of taste Taste Organs of touch Touch References: Dhyani, Pushpa. Library classification: theory and principles. New Delhi: H S Poplai, 1998. Ranganathan, S.R., Prolegomena to library classification. 3rd ed., Bombay: Asia Publishing House, 1967. |

