In his paper ‘Subject heading and facet analysis’ (Journal of Documentation. 20(1); 1964, Sep,; P. 109-119) Dr. S.R. Ranganathan demonstrated that the Postulational Approach is a systematic method of arriving at the precise representation of subjects embodied in a document or any other medium. The subject is expressed as a combination of different categories of ideas (Basic subject, Facets, Isolates and Speciators or Qualifiers). Once the verbal expression of ...
