merits
of ddc with examples:
Dewey
decimal classification.
The Dewey
Decimal Classification (DDC),
or Dewey Decimal System,
is a proprietary library classification system first published in the United States
by Melvil Dewey in 1876. It has been revised and expanded
through 23 major editions, the latest issued in 2011, and has grown from a
four-page pamphlet in 1876 with fewer than 1,000 classes to a four volume set.
It is also available in an abridged version suitable for smaller libraries. It
is currently maintained by the Online Computer Library Center (OCLC), a non-profit cooperative that
serves libraries. The number makes it possible to find any book and to return
it to its proper place on the library shelves. The classification system is used in
200,000 libraries in at least 135 countries.The major competing classification
system to the Dewey Decimal system is the Library of Congress Classification system created by the U.S. Library of Congress.
Dewy decimal classification
·
Notation:
The Dewey decimal
classification scheme used signs and symbols for any phrase Work.
There are three types of notation in
Dewey decimal classification scheme:-
i.
Pure Notation
ii.
Flexibility
iii.
Hierarchy
I.
.Pure Notation:
The pure notation of Arabic numbers
is generally recognizable. People from
many cultures and languages can adapt to the system easily. The
classification's notation makes use of three-digit Arabic numerals for
main classes, with fractional decimals allowing expansion for further detail. A
library assigns a classification number that unambiguously locates a particular
volume in a position relative to other books in the library based on its
subject matter. This makes it possible to find any particular book using the
number, and to return it to its proper place on the library shelves. The
classification system is used in 200,000 libraries in at least 135 countries.
It is a flexible and
effective system fororganizing bibliographic records for all kinds of
information in any medium.UDC is highly flexible to allow for constant revision
in order to keep pacewith development of knowledge. Flexibility of UDC for
responding to
complex interrelationship among subjects is more than DDC and
LC.
iii.Hierarchy
The number of digits that form the UDC number indicates the
sequence of subjects from general to specific.
·
Precision:
Precision is one of the most important merits of use of
UDC on Internet. When any searcher retrieves the information
through the
classified websites from WWW then the precision will be high.
Classified
websites has better precision than search engines such as
Google, Yahoo,
Infoseek, etc
·
Synthetic
Principle:
The synthetic principle is one of the main reasons for the widespread use
of UDC in preference to other systems. It extended the use of common tables,
geographical subdivisions and viewpoints, all of which were established to
different degrees in previous classifications, and added the ‘colon principle’
whereby every part of the
·
Mnemonic Nature:
The mnemonic nature of the notation helps library
users to navigate within the system.
·
Revision and Publication:
The continuous revision and publication of the
schedules at regular intervals ensure the currency of the scheme.
·
General Class:
General Class is known as 000 in Dewey decimal
classification scheme (DDC). Library Science is one of those subjects.
·
Stand red Sub-Division:
The
following notation is never used alone, but may be used as required with any
regular schedule number, e.g., workbooks. When adding to a number from the
schedules, always insert a decimal point between the third and fourth digits of
the complete number. Standard subdivisions should be added only when the work
in hand covers the whole, or approximately the whole, subject of the number in
the schedules When standard subdivision notation from Table 1 is listed in
Tables 2 through 4 and in the schedules, all of the notation’s notes and
subdivisions as given in this table are applicable unless other instructions
are given. Other Table 1 notation that is not listed in the schedules may also
be used. For example, the fact that 610.7 is listed, but not 610.8 or the
subdivisions of 610.7, does not exclude the use of 610.8 or 610.71
SUMMARY STAND RED SUB-DIVISION:
—01 Philosophy and theory
—02 Miscellany
—03 Dictionaries, encyclopedias, concordances
—04 Special topics
—05 Serial publications
—06 Organizations and management
—07 Education, research, related topics
—08 Groups of people
—09 History, geographic treatment, biography
·
Book Classification System:
This is
pure system used in library. This is based on knowledge classification.
Separate classify these subject more in to subjects or sub-subjects. In this
process the natural & artificial qualities of the book have also been taken
in mind. This is not classify the subjects but also related the subjects too
interconnect with other subjects.
e.g. if main subject Chemistry book then
classify it:
Chemistry
·
Physical
Chemistry
·
Inorganic
Chemistry
·
Industrial
Chemistry
e.g.
- Islam & other Sciences
- Islam & other religion
·
Relative Location:
The Decimal Classification
which introduced the concepts of relative location and relative
index which allow new books to be added to a library in their proper
location based on subject. Libraries previously had given books permanent shelf
locations that were related to the order of acquisition rather than topic.
·
Relative Index:
The relative index brings together different
aspects of the same subject spread in different disciplines. The "Relative
Index" is an alphabetical index to the classification, for use both by
classifiers but also by library users when seeking books by topic. The index
was "relative" because the index entries pointed to the class numbers,
not to the page numbers of the printed classification schedule. In this way,
the Dewey Decimal Classification itself had the same relative positioning as
the library shelf and could be used either as an entry point to the
classification, by catalogers, or as an index to the Dewey-classed library
itself.
Synthetic
Principle:
The synthetic principle is one of the main
reasons for the widespread use of UDC in preference to other
systems. It
extended the use of common tables, geographical subdivisions
and
viewpoints, all of which were established to different
degrees in previous
classifications, and added the ‘colon principle’ whereby
every part of the
classification became divisible by every other part. This,
with the growing
complexity of knowledge, was an invaluable invention
Relativ Index
The "Relativ Index" is an alphabetical index to
the classification, for use both by classifiers but also by library users when
seeking books by topic. The index was "relative" because the index
entries pointed to the class numbers, not to the page numbers of the printed
classification schedule. In this way, the Dewey Decimal Classification itself
had the same relative positioning as the library shelf and could be used either
as an entry point to the classification, by catalogers, or as an index to the
Dewey-classed library itself.
Relative
location
The Decimal Classification introduced the concepts of relative location and relative
index which allow new books
to be added to a library in their appropriate location based on subject.
Libraries previously had given books permanent shelf locations that were
related to the order of acquisition rather than topic.
Summary
000 Computer science, information & general works
100 Philosophy & psychology
200 Religion
300 Social sciences
400 Language
500 Science
600 Technology
700 Arts & recreation
800 Literature
900 History & geography
