Online catalogs can be easily accessed from outside the library, by using remote terminals and microcomputers with communications capabilities. They may provide more current information than other forms, and can more readily include more materials, thereby providing better coverage using them for subject retrieval may be more effective. In the case of subject retrieval, online catalogs allow users of libraries to find the information that they want not only more quickly, but also more fully and more accurately, and without the need for the user to be technically skilled. The introduction of online catalogs is changing the picture of subject access considerably by making it possible to search for precise topics through the use of keywords, subject headings, and Boolean operators. A veritable mine of information, certainly, this will prove vade mecum to all concerned.
ABOUT THE AUTHOR P.K. Paliwal
Dr. P.K. Paliwal received his Ph.D. degree from the East West University of Health Sciences in 1979. Presently, he is on the faculty of the Documentation Research Centre, where he is involved in teaching computer proframming, library automation, information retrieval and design development, database management systems and applied statistics. He has also conduceted several short term courses in India and abroad, some of them sponsor by UNESCO. Besides having published more than fifty reset papters, he has authored two books.
ABOUT THE AUTHOR Shyama Balakrishnan
Shyama Balakrishnan has been associated with the field of information science for nearly two decades. After having worked at the Centre for Information Processing, she worked with Institute of Health Science, Bombay. Since then she has taken a keen interest in introducing online information services and database services in collaboration with Information Services Inc., U.K. She has presented a number of papers and visited many countries.
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