Preserved context index system (precis), Humanities

Preserved Context Index System (PRECIS) 

PRECIS (Preserved Context Index System) was designed and developed by Derek Austin by about 1970 as an alternative procedure for deriving the subject headings and subject index entries for British National Bibliography  (BNB). Since 1952, for nearly 20 years, BNB followed chain procedure for deriving subject index entries. Two most  important factors worked for the development of PRECIS: I) Idea of replacing chain indexing technique of BNB; and ii) the decision of  the British Library to generate computer produced BNB  with all the indexes in  view of launching the UKMARC project. Accordingly, a research project for a suitable alternative for generating subject indexes directly from the machine readable records were undertaken by the British Library with the following objectives, which, ultimately resulted in the development of PRECIS: 

  1. The computer, not the indexer, should produce all index entries. The indexer's responsibility would be only to prepare the input strings and to give necessary instructions to the computer to generate indexes according to a definite format; 
  2. Each of the sought terms should find index entries and each entry should express the complete thought content/full context of the document  unlike the chain indexing where only one entry is fully co-extensive with the subject and others are cross references describing only  one  aspect of the complete  content of the document; 
  3. Each of the entries should be expressive; 
  4. The system should be based on a single set of logical rules to make it consistent; and 
  5. The system must have sufficient references for semantically related terms. PRECIS is now a recognised indexing model and has been adopted by a number of indexing agencies to produce subject indexes to a wide range of indexing tools like national bibliographies, library catalogues, indexes to audio-visual materials,  musical scores, micro documents, etc.  
Posted Date: 10/26/2012 3:39:16 AM | Location : United States







Related Discussions:- Preserved context index system (precis), Assignment Help, Ask Question on Preserved context index system (precis), Get Answer, Expert's Help, Preserved context index system (precis) Discussions

Write discussion on Preserved context index system (precis)
Your posts are moderated
Related Questions
Astronomical Almanacs Every country issues astronomical almanacs annually. They give astronomical and astrological projections of coming year.  Indian Ephemerics and

Factors Governing Subject Indexing Systems   There are many factors that govern the design of subject heading systems. Some of the more important ones are:  content analy

why dont dogs speak

Treatment Readability, objectivity and style are the three important criteria of topics in encyclopaedias. Readability: The topics covered by the encyclopaedia should be

Different types of integration, planning for integration in large and small groups, as well as possible activities for integration. Now we will focus on creating an environment for

Hey! I really need some help... I need to write an essay explaining one element of Buddhism (I chose to explain how it serves as a REFUGE) and I need to write out a given outline

Library Records   A number of records are created in a library for its collections to serve different purposes. Some of these records are accession register, shelf list, period

Call Number   Call number is the notational symbol given to a document to individualise and identify it. It consists of the classification number and the author number. Some ti

Special Subject Encyclopaedia It is rather common for the reference librarian to receive queries regarding specific subjects. The answer of such queries can be searched from t

Britain's 1688 revolution : The 1688 Revolution, frequently termed as the 'Glorious Revolution of 1688', finished the reign of James II and ushered in the reign of William III and