Page 183 - DLIS402_INFORMATION_ANALYSIS_AND_REPACKAGING

Information Analysis and Repackaging

Notes A

ABCD
B
ABCD
C
ABCD
D
ABCD
The above format is exactly like KWOC index, in which the user is required to read the entire chain
every time to get the correct context.
Steps in POPSI
The index entries according to this system are generated in a systematic manner with the help of
following steps of operation.
1. Analysis
2. Formalisation
3. Modulation
4. Standardisation
5. Preparation of EOC
6. Decision about TA
7. Preparation of EAC
8. Alphabetisation
Let us examine these stages with the help of a sample title, ‘Chemical treatment of tuberculosis of
lungs’.
1. Analysis: Subject indicative expression, the starting point of index generation, may be
the title of a paper, a book or any other document. According to the first stage of operation,
the expression is analysed to identify the facets in terms of concepts and modifiers.
Analysis of the above mentioned example will lead to the following:
D – Medicine
E – Lungs
A – Chemical Treatment
P – Tuberculosis
2. Formalisation: In the stage of formalisation the sequence of components derived by
analysis has to be decided. It involves the arrangement of component terms according to
the principles of sequence of components indicating the status of each component term.
Applying this principle, the components are sequenced in the following manner to obtain
the basic chain:
Medicine (D), Lungs (E), Tuberculosis (P of E), Chemical treatment (A on P)
3. Modulation: Each of the component terms in the analysed and formalised subject
headings is added some terms (if necessary) to make their understanding more clear. The
above chain after modulation will be:
Medicine (D), Man. Respiratory System. Lungs (E), Disease. Tuberculosis (P of E),
Chemical treatment (A on P)

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