What do you mean by selective dissemination of information?
Selective dissemination of information (“SDI”) was originally a phrase related to library and information science. SDI refers to tools and resources used to keep a user informed of new resources on specified topics, including the current-awareness services used to inform about new library acquisitions.
What are SDI services?
INTRODUCTION. Selective dissemination of information (SDI) is defined as “a service provided by a library or other information agency whereby its users are periodically notified of new publications, report literature, or other sources of information in subjects in which they have specified an interest” [1].
What are the characteristics of SDI?
The following are the characteristics of SDI service:
- It is a computerised assisted service.
- SDI is concerned with current published information.
- The source of current information may be available both within the organization and outside it.
Who gave the concept of selective dissemination of information?
Hans Peter Luhn
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. SDI involves the use of the computer to select from a flow of new documents, those of interest to each of a number of users.
What is SDI and CAS?
Both the services are based on availability of current literature. SDI is a personalized service and is directed towards the individuals or homogeneous group, whereas CAS is awareness service which is directed towards all the users who need it.
What is the full from of SDI?
The Full form of SDI is State Directorate of Industries, or SDI stands for State Directorate of Industries, or the full name of given abbreviation is State Directorate of Industries.
What is SDI describe its components?
Product Description. Spatial data are widely used in public and private organisations. It explains the different technical and non-technical components of an SDI: data, services, metadata, standards, technology, organisational and institutional aspects (people), etc.
What does CAS stand for in computers?
Computer algebra system, a software program that facilitates symbolic mathematics.
What is CAS library?
In library: Current-awareness service. The purpose of a current-awareness service is to inform the users about new acquisitions in their libraries.
What is SDI in GIS?
The term “Spatial Data Infrastructure” (SDI) is used to describe the collection of technologies, policies and institutional arrangements that provide a basis for spatial data discovery. SDI widely uses Geographic Information System (GIS), GPS, Remote Sensing and other geospatial technologies.
What is the full name of HD?
High Definition
HD stands for High Definition. It refers to the new standard for image resolution, i.e., high definition images. It is a display resolution of higher resolution than standard definition (SD). A high definition (HD) image is known for its clarity and high resolution, etc.
What is CAS How does CAS differ from SDI?
SDI is a selective service based on the exact information need of the user, whereas in CAS all the information is circulated to the user on the given topic. CAS can be provided without computer, whereas SDI is a computerized service.