My ContentTertiary SourceTypes of Tertiary sources Bibliography of Bibliographies Directories Guides to literture List of Research in Progress Year Books written Almanacs written
Non- documentary Types Non- documentary Formal Sources Informal sources
Some important Non-Documentary sources Technological Gate Keepers Invisible college Organization Research and Development (R&D) Information Analysis centre Non-Conventional sources
Tertiary Source
The tertiary sources of information are last to appear and mostly do not contain subject knowledge. It is designed to provide information about information and so acts as a guide to the primary and secondary sources of information. The main function of tertiary sources is to aid the user in using primary and secondary sources of information. The tertiary source of information are bibliography of bibliographies, guides to libraries, other organizations, indexing and abstracting periodicals, List of accession, list of research in progress, directories, etc.
Types of Tertiary sources
a. Bibliography of Bibliographies.
b. Directories and yearbooks
c. Guide to literature
d. List of research
a. Bibliography of Bibliographies
A bibliography of Bibliographies is that which direct readers to useful bibliographies through subject, name of an individual/ Place / institution etc. As the number of bibliographies published every year is large therefore Bibliographies are highly selective in nature for example : Bibliographic Index, Cumulative bibliography of bibliographies.
ii. Directories
A directory is a list of names and addresses of persons, Organizations manufacturers or periodicals. The word 'directory' may or not appear in the title for example. World directory of Mathematicians, 4th ed. Stockholm, Alinguist and wiksell, 1970.
iii. Guides to literture
A guides to literture assists a user to use literature, of a specific subject. It helps to evaluate and introduce literature. It lays emplasis on literature rather than the content of a specific subject. For example, readers guide to the social science, edited by Bert F. Herllitz. revised edition, New york, Free Press, 1970.
iv. List of Research in Progress
List of research in progress covers the research activities of a single institutes or laboratory, a group of institution. universities or research - in - progress, within a specified subject. It consists of a short description of projects, name(s) of investigator(s), period of investigation, name of finding agency, and in some cases, reference to sources of publication of results or result likely to be published.
v. Year Books written
vi. Almanacs written
2. Non- documentary
Non-documentary sources of information form a substantial part of communication especially in science and technology. User's studies have underlined importance of such sources. These sources provide information which other sources do not.
Types of non-documentary sources
- There is two kinds of sources
1. Formal Sources -
Research Organization
Societies
Industries
Govt deptt
Universities
Consultants
2. Informal sources -
conversation with Colleges
Visitors
Attendance at professional meetings
Some important Non-Documentary sources
i. Technological Gate Keepers
A technological gatekeeper is a well-informed person in a particular field. Usually, some scientists, technologists, and professionals in business etc. have got a tendency (possibly an inborn) to acquire information from various sources, to keep himself / herself abreast of the development in the field, and disseminate the information to the person or group who may be interest in the information. There is no formal course to train a person as a technological gatekeeper. Almost automatically, they grow into a technological gatekeeper.
ii. Invisible college
In reality, an invisible college is not a college. Around 1645 a group of persons interested in natural philosophy and other parts of human learning started meeting secretly at greshan college or elsewhere in London under the name of the invisible college. In the meeting, they used to discuss about their research activities results obtained, new areas that can be researched and so on.
iii. Organization
Organization are also important sources of information. There are different categories of organizations and they provide different types of information. Information provided by an organization is generally considered to be authentic. Here we are going to discuss about the following categories of organization biblighing the various types of information that these agencies can provide.
iv Research and Development (R&D)
Organizations Research laboratories institutions etc. generates information through research. This information is published in the form of research papers, shorts communication, etc. Wherever a scientist receives national or international award media people flock to the organization where the scientists are working to gather more information. The biographical data, service profile, correspondences, photographs, laboratory notebooks and much other information about scientist can be obtained from an R&D organization.
v. Information Analysis centre
When we talk of an information centre we mean an organization that provides information on demand. suppose somebody wants information on the prons and cons about the construction of a dam at a particular place. The information centre will supply news items and other information available on the dam as it is. It will not analyze, evaluate and synthesis the information.
vi. Non-Conventional sources
Besides the documentary and non-documentary sources, there is prevalent feeling that new mechanism is needed to make information more readily accessible and that better techniques are needed to channel it to the ultimate consumer. Thus there are a number of non-conventional sources, which are in machine-readable form.
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