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referral centresa referral centre is some sort of information desk for the scientific and technical community which does not provide enquirers
information analysiscentres an information analysis centre iac has been defined as an organization which indexes abstracts translates reviews
online database serviceswe shall be referring to online databases most of the well-known indexing and abstracting services are now available both
indexing and abstracting serviceswhile the compilation and publication of an indexing and abstracting service in itself is an information service
information centresit is now customary to establish documentation cells within many special libraries to provide different types of information
facilitating centresservices traditionally only libraries functioned as facilitators but over a period of time several other specialized
links in informationtransmission chaini sources of generation as discussed in unit 1 the researchers and their employing oreganisations are
information demand information services are needed to provide information not only on demand but also in anticipation of its use often it will
libraries as facilitatorsthe libraries are no longer passive observers of users trying to find their ways in libraries to locate what they want
value of information servicesat the outset it must be emphasised that there is no consensus of opinion among information scientists and
information servicessome of the significant information services which have been evolved as a result of developments in communications are
telecommunication technologiestelecommunication today involves microprocessors digitization of information audio video and text and its
impact of new technologies on information servicesthe influence of information technology on the provision of information services and on
context setting context setting implies that the significance and inter-relatedness of individual dataitems be made explicit and piece of
information for innovation innovation is based on new ideas and new combination of old ideas the utility of which is tested with applications
the user interface user interfaces are mechanisms built into information systems and services to enable the users to utilise these services in
information analysisinformation analysis is done for improving the authenticity and usability of information this is done by specialists in the
subject analysissubject analysis is one of the longest established forms of added value in information services it extends to the intellectual
selection and packagingadded value is often claimed for information services on the grounds that they bring together in a convenient form items of
advantages of information servicesthere are a number of advantages in the value addition of information services taylor suggests three of
value-added information services value-added is a term now widely and increasingly used in the context of information systems and services it
document delivery servicesinformation searches conducted by library or information specialists from databases usually are from bibliographic much
literature search servicesliterature search service is considered as an extension of reference service an important aspect of literature search
selective dissemination of information sdiselective dissemination of information is a method of supplying each user or a group of users with the
current awareness servicescurrent awareness services are designed to keep the user abreast of information in thier area of work or interest that