TOPIC:-CAS and SDI
Presented by-
Monalisha Saikia Phukan
Librarian. PM Shri K.V.NO.2 AFS Tezpur
CAS (Current Awareness Service)
In the CAS service, the reader is contacted with the latest information. This service is important for the reader who wants to know the latest development only in his specific subject.
The various types of new documentation and information services are being provided by the library and information center. which is helping in research and development, industrial productivity management, marketing business, etc.
According to Ranganathan - "CAS tries to provide the reader with the latest information about his specific subject and related topics in an expeditious manner."
According to Strauss - "The process of selecting information related to the journal, magazine, report, booklet, etc. is a mixture of topical information service."
According to Satyanarayana and Rayadaja - "It is a service that provides all the information affecting the progress of the researcher's work at the right time and convenience.
Characteristics & Features of CAS (Current awareness service)
CAS has the following features:
attention of the user towards timely or new information.
2. This service does not provide any specific answer but gives complete
information about new developments.
3. This service is not related to anyone subject but is related to the broad topic.
With which the researcher can get information about his subjects of interest as.
well as other subjects.
4. This service strives to provide as soon as possible.
Type of CAS (Current Awareness Service)
�1. Contents of journal service - This type of service is published by the library
publishing center of the library, publishing the tables of the contents of the
journals and providing timely recognition service to the users.
�2. Current awareness list - This type of service is classified subject-wise by
classifying articles published in journals by Mump Documentation Center and publishing
bibliographic lists. With the help of these lists, a timely identification service is provided.
�The example of the Chemical Titles of the Abstract Service and Current Chemical Papers
of the Chemical Society of the British Chemical Society of Britain is an example of this.
�3. Research in progress bulletins - In this type of service, a bulletin is issued from
time to time about the progress of research in the same field. This service is provided
in collaboration with research institutes. The US Department of Agriculture is providing
this service.
SDI ( selective dissemination of information)
Selective Dissemination of Information (SDI) is a new and rapidly developing field. The concept was originally set forth by Hans Peter Luhn in 1958. As described by Luhn, one part of a larger idea, the business intelligence system, was Selective Dissemination of Information.
Components of SDI
The main components of an SDI are Policies, Connectivity, Technology, Product, Metadata and Processing Tools. ...
Advantages of SDI services.
SDI services save users valuable time and resources by eliminating the need to search and source information manually. Instead of spending hours searching through numerous resources, users can rely on the expertise of librarians who curate and deliver the right information directly.
What is the role of library in Dissemination of information?
It transmits and disseminates the accumulated knowledge through books and other materials. In ancient times, libraries acted only as the custodian of books and other written documents. Writings on clay tablets, papyrus, parchment, velum, paper, etc. were preserved in those libraries.
Why Do We Need SDI Services?
In today’s information age, where an overwhelming amount of data is readily available, efficient information management and retrieval have become paramount. This is where Selective Dissemination of Information (SDI) services come into play. SDI services, provided by libraries and information professionals, are designed to address the challenges of information overload and deliver personalized, relevant, and timely information to users. Let’s explore some key reasons why we need SDI services:
THANKS