Data growth continues to be a challenge for IT and storage administrators. Data is often subject to long-term retention and special storage requirements driven by regulatory compliance, litigation, corporate governance, and operational business needs. In library managing information, books, and documents in a logical sequence, group and order without a knowledge classified system?
The term ‘library’ has itself acquired a secondary meaning: “a collection of useful material for common use,” There is a huge contribution of young students assisting in the Library of Amherst College that revolutionized the library science and the profession of Librarianship by evolving a classification system for organizing information related to various fields and their retrieval in the conventional library.
Dewey Decimal Classification (DDC) system or number building theory was developed by Melvil Dewey, and first edition was published in 1876, which changed from vocation to the present knowledge management profession. Since then greatly modified and expanded in the course of the 22nd edition, the most recent in 2004, having four volumes. Web Dewey and its online services are under OCLC, an organization serving for spread of knowledge without commercial temptations. It is mainly used in libraries for organizing library materials (books, serials, audiovisual materials, computer files, maps, manuscripts, realia) according to their subject.
DDC is a hierarchical classification system that divides all knowledge into 10 main classes and numbers them 0 to 9 and a decimal at the end of 3rd digit. Hence the system can be neatly summarized in 10 main classes, 100 divisions and 1000 sections. Books are classified principally by subject, with extensions for subject relationships, place, time or type of material, producing classification numbers of not less than three digits but otherwise of indeterminate length with a decimal point before the fourth digit. Books are placed on the shelf in increasing numerical order. The following are main class numbers:
000: Computers, information, and general reference
100: Philosophy and Psychology
200: Religion
300: Social Science
400: Language
500: Science
600: Technology
700: Arts and Recreation
800: Literature
900: History and Geography
When two books have the same subject, they have the same classification number, i.e., 3rd digit remain same, while 2nd and 3rd digit go on changing. It is a common misconception that all books in the DDC are non-fiction.
