By :m.p. satija
2. Brief History
- 1. French Period, 1895-1933: Foundation and grammar
- 4. International Period, 1990 Technical and strong organizational
3. Various Editions
3.1 Current Edition:
and also provides number building facility. Cut paste facility saves time and effort. Now UDC MRF files have been moved to a new database with extended functionality. It will provide more diversified and improved products. Standard online edition cannot be purchased. Multi-user license to use it usually on a LAN can be obtained from the UDCC office in the Hague, the Netherlands. A guide to the application of the MRF called the MRF Manual, is available free of charge to all Consortium members and license holders.
4. Main Features
- UDC is a practical bibliographic classification: truly international in efforts and exposition of contents. Considered as the first faceted classification, it is a synthetic classification which is able to specify minute subjects, aspects, formats and their varied viewpoints.
- It is the first officially multilingual classification being published in French, German and English.
- 2.1 Its 1000 sections summary is available in about 50 languages
- Its notation is independent of any particular language or script, and its translations have appeared in about 50 languages.
- It lays more emphasis on subject analysis and document specification.
- Auxiliary apparatus of relations and synthesis is quite powerful. It makes the UDC a truly multidimensional scheme.
- It is thus more suitable for micro documents, electronic information and information retrieval in online and networked databases, and websites.
- Its structure is flexible to accommodate new subjects, and change citation order for flexibility of shelf arrangement and searching.
- It has A-class machinery for governance, maintenance and marketing. It is called UDC Consortium which has a full time director, a full time editor, and an international advisory board.
5. Organization of Knowledge and Layout of the Schedules (Main Tables)
6. Auxiliary Tables
6.1 Common Auxiliaries
6.2 Special Auxiliaries
6.3 Citation Order
7. Notation and Layout:
9. Management, Maintenance and Revision
- Its DDC base has always been criticized. It has mortgaged its future to the DDC, it is often said, ruefully.
- Some notational devices, although apparently logical and satisfactory, cause problems in retrieval systems.
- Symbols like — and 0 overlap in function and may lead to confusion.
- Its auxiliaries are still developing with changes in some notational symbols.
- There are certain citation order problems, as no definite standard has been prescribed.
- Main class 4 has still not been filled up.
- Frequent notational changes are worrisome.
- Lacking support/sponsorship of any institution it is financially not sound.
12.Reference & Notes
- UDC Online (complete web edition) - published in August 2013 - available under annual subscription from http://www.udc-hub.com/en/login.php
- Abridged UDC Edition (printed) - in preparation - planned for September 2014
- Complete UDC Edition (printed) - planned for 2015.