Lesley is right in her response to Helen’s
question re the main changes, that in the context of some of the extent of the
changes to earlier editions, the changes aren’t too dramatic for Ed.23.
For example, in ed. 21 Education was
extensively revised, as was the whole of Life Sciences, and Public
Administration, and Computing was revised (the Internet – 004.678) was a
new number!). With ed. 22 Maths was fairly extensively revised, there were
changes to EU law, computing was again, Table 7 was removed, there were some changes
to guidebooks (647 to 910) area and the manual streamlined, etc.
A good starting point for Ed. 23 changes is the “new
features” at:
http://www.oclc.org/dewey/versions/print/new_features.pdf
Another vital source is the Dewey blog, which has excellent
coverage to changes in computing and medicine/health:
The changes seem to divide into major changes to whole areas
(expansions/relocations) to “major but disparate changes”, to major
updates to tables, to more minor changes in terminology/captions/elimination of
dual headings/discontinuations etc.
The major changes to whole areas are are predictably areas
like computing, where there are numerous changes in 004-006, with the largest
set of changes in 005.7. Two general trends have been addressed: the
proliferation of smaller computing devices, and the fact that many computing
devices are multifunctional. Some of these changes were incorporated into
WebDewey in 2008, but others are new to coincide with the print edition of 23.
This is explained in great detail in the blog for Aug. 24, 2011.
Another major area of change, is that to medicine and
health. Again, some of the more routine changes have already been introduced
with WebDewey (e.g. Diabetes type 1 and 2), but with those for 611.018 Cytology
and histology and 612 Human physiology the changes were complex and couldn’t
be fully explained in a preview.
The other main area of change, as someone has already
mentioned, is 777, cinematography and videography.
So, as someone posted earlier individual libraries need to
evaluate the changes in the context of their stock, and decide what they can
live with.
Gill
From:
CIG E-Forum [mailto:[log in to unmask]] On Behalf Of Lesley Creamer
Sent: 27 September 2011 11:29
To: [log in to unmask]
Subject: Re: [CIG-E-FORUM] Welcome
to CIG e-forum Day 2
Hello
I
thought it might be useful to point out to anyone who doesn’t already
know that BDS (and the BL) started using DDC23 several months ago so anyone
using our data will be receiving DDC23 numbers. Fortunately there are no
dramatic changes to this edition, no phoenix schedules which create more chaos
than anything else. Yes, it is available in print – I have a copy sitting
on my desk, but we also use WebDewey extensively. The intention is that this
really will be the last printed edition – but they said that last time!
I’m
not sure what’s happening about updates now but for DDC22 we found that
the monthly updates posted on the OCLC Dewey update site didn’t cover all
updates, especially things like changes of government/regime in history
numbers, but not all the updates for the print edition appeared on WebDewey
either.
Lesley
Lesley
Creamer
Data Manager
Bibliographic Data Services Ltd
The Crichton
DG1 4TA
Tel: 01387 702256
Fax: 01387 702259
email: [log in to unmask]
________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________