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Difference between CAS & SDI
Replies to This Forum
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Permalink Reply by yatendra Gangwar on
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CAS means is that Current awareness service & SDI means is Selective Desimination of Information.
in CAS - the provide information is based on current knowledge based on journals, newspapers, etc.
in SDI- firstly library makes the profile of user, that what types of information the user wants, than provide the information of the user based on computer.
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Permalink Reply by Jayshree Dave on
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Current awareness services are the services that provide information about the latest books, articles, events and news in a field. Nowadays, there are many sources of information and the volume of new research is so huge that keeping oneself up to date is a big task. Current awareness services help us to match current awareness news and information to our needs. They can save the effort of scanning and browsing journals, bulletins, newsletters and web sites
SDI is the ability of a service to notify a user of material that matches the interests of the user. This involves:
- scanning of material;
- recognizing relevant information in the material;
- summarizing the information; and
- Presenting the summaries information to the user.
In that way, the user can decide whether or not to go ahead with acquiring the material or to wait for other information. It should be remembered that SDI is usually more than just presenting the title, author's name and source reference to a client. It also involves some scanning and abstracting of all the main ideas or concepts in the material. SDI is essentially a form of advertising/publishing for the information service provider (eg. the librarian), to let interested people know of what is available in their field of interest
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Permalink Reply by INDRAKUMARA on
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thank you madam
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madam if you dont mind i need dr p.s.g kumar sir books related in lis field .so pls give me portal link or url plss
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