Preserved context index system (precis), Humanities

Assignment Help:

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.  

Related Discussions:- Preserved context index system (precis)

Problems with dictionaries, Dictionaries : Some Problems According to ...

Dictionaries : Some Problems According to one estimate "every minute of every day including Sunday, six people buy an Oxford dictionary'''. This only shows the usefulness of

Ecologically sustainability, Ecologically sustainable is defined as the mai...

Ecologically sustainable is defined as the maintenance of life support systems to achieve a healthy geophysiological continent, and the achievement of a natural extinction rate (Su

Theory of rational choice, Theory of Rational Choice- Economics plays a vas...

Theory of Rational Choice- Economics plays a vast role in human behavior. i.e., people are frequently motivated through money and the probability of making a profit, estimating the

Human relations, which of the following methods of dealing with cultural un...

which of the following methods of dealing with cultural uncertainty is the least successful

Pre-coordinate indexing systems, Pre-Coordinate Indexing Systems   Pre-...

Pre-Coordinate Indexing Systems   Pre-coordinate indexing systems are conventional systems mostly found in printed indexes. In this type of system, a document is represented in

Types of bibliography, TYPES OF BIBLIOGRAPHY Bibliographies are regard...

TYPES OF BIBLIOGRAPHY Bibliographies are regarded as most important tools in libraries and documentation centers. This is due to the fact that they allow free flow of bibliogr

Human Resource 420, What questions should a health and safety professional ...

What questions should a health and safety professional ask when making decisions that have an ethical component?

History of the american, 1. Trace the development of the Industrial Revolut...

1. Trace the development of the Industrial Revolution in early 19 th century America. How did life for the American workers change during the Industrial Revolution? Were workers b

Darwnism theory, what is the conclusion Darwinism theory

what is the conclusion Darwinism theory

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd