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)

Standard number and terms of availability area, Standard Number and Terms o...

Standard Number and Terms of Availability Area   International Standard Book Number (ISBN) and International Standard Serial Number (ISSN) are numbers given to each individual

Exchange format - structure, Structure   Records in automated systems m...

Structure   Records in automated systems may be of fixed length or variable length. Fixed length records in a file must each contain the same fields and -any given field must a

Advantages and disadvantages of coal energy, Normal 0 false f...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Discuss the adv

Kutta, why dont dogs speak

why dont dogs speak

Art, What are some contemporary examples that utilize idealism? Are the pur...

What are some contemporary examples that utilize idealism? Are the purposes the same as those of the Classical Greeks?tion #Minimum 100 words accepted#

Format - evaluation of dictionary, Format The physical format of the d...

Format The physical format of the dictionary should be compatible with efficient use. Size, binding, paper, print and appearance should be examined carefully while evaluating

Assimilation of buddhism, Assimilation of Buddhism Qingtan or ch...

Assimilation of Buddhism Qingtan or ching-t'an (pure conversation) Often entailed monks: many of them quickly learned Chinese. Gathered in parlors and talked about phi

.development studies, what is the definition of the concept foreign aid?

what is the definition of the concept foreign aid?

Gender in health and body, Gender in Health and Body: Inequalities among th...

Gender in Health and Body: Inequalities among the genders can be observed at several levels. Several of these inequalities are biological within origin, conversely, the majority of

Author catalogue, AUTHOR CATALOGUE   As a student of library science, y...

AUTHOR CATALOGUE   As a student of library science, you can now appreciate that librarianship is basically concerned with creating systematic records of bibliographical items.

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