This is the fourth in a set of posts on changes in 004-006 Computer science in DDC 23. As a previous post noted, some of these changes were incorporated into the DDC in November 2008, but others were new with the publication of DDC 23 in print and in WebDewey 2.0. Here we specifically address changes involving the World Wide Web (WWW), in the context not only of 006.7 Multimedia systems, but also of the expansion for 025.042 World Wide Web under 025.04 Information storage and retrieval systems. An expansion in 006 Special computer methods will also be introduced.
Continuing technological advances lead classifiers to question where best to class specific new and/or evolving computer and information science topics. Sometimes the number for a topic is provided in the schedules through an expansion for the topic, so that the topic has its own number. Sometimes information on where to class a topic is provided in Manual notes; sometimes it is given in other types of notes, especially including- and class-here notes; sometimes it is reflected only in indexing, which may appear in the print Relative Index or may appear only in WebDewey. (Hint: the classifier may need to check all these sources to find if the schedule gives guidance on how to handle a specific topic. Absent such guidance, classifiers have been known sometimes to make surprising choices!)
The table below indicates where selected WWW-related topics are to be classed under 006.7 Multimedia systems, as designated in DDC 23 through various of the means listed above:
|
Topic |
Class number |
How designated |
|
Information architecture |
006.7 Multimedia systems
|
In class-here note |
|
Web page design |
||
|
Web site development |
||
|
Style sheet languages |
006.74 Markup languages |
In class-here note |
|
Wikis |
006.75 Specific types of multimedia systems |
In including note at expansion (expansion from 006.7 introduced in 2008) |
|
Blogs |
006.752 Blogs |
Expansion |
|
Online social networks |
006.754 Online social networks |
Expansion |
|
Web application frameworks |
006.76 Programming |
In class-here note |
|
Rich Internet applications |
006.78 Programs |
In including note |
|
Web services |
The following are examples of works on these topics:
|
Title |
Class number |
|
006.7 |
|
|
006.7 |
|
|
006.74 |
|
|
006.75 |
|
|
006.752 |
|
|
006.754 |
|
|
Enabling context-aware web services: methods, architectures, and technologies |
006.78 |
While all of the topics above are WWW-related, the interdisciplinary number for the World Wide Web is not in 006.7, but in 025.04. The Manual note at 004.678 vs. 006.7, 025.042, 384.33 gives guidance on which aspects of the web are classed in these several places. With regard to the numbers we have just looked at, it says: “Use 006.7 for general works about the use of HTML and XML to create hypertext documents on the World Wide Web, and works that discuss web page design or effective web pages.” The types of works which ought to be classed under 006.7 typically are works on the conceptual design of web sites and pages or works on the use of software that enable web operations.
Interdisciplinary works on the World Wide Web have been relocated from 004.678 Internet (where interdisciplinary works on the Internet remain) to the recently expanded 025.042 World Wide Web. The Manual note referenced above goes on to say that 025.042 is to be used for works “that emphasize search and retrieval” on the web, plus “works that describe information resources available on the Internet or WWW, or on how to find information there.”
The basic development under 025.042 is as follows:
025.042 World Wide Web (“Class here digital libraries, Internet literacy;” Web2.0 has been added as an index term displaying only in WebDewey, i.e., not in print)
025.0422 Web sites (“Class here directories of web sites, portals”)
025.0425 Search and retrieval (“Class here Internet searching“)
025.04252 Search engines
025.0427 Semantic web (the Relative Index term Resource Description Framework has been moved here; previously it had been assigned to 006.74)
The following are examples of works on these topics:
The final development to introduce is an expansion under 006.2 Special-purpose systems, where we now have:
006.2 Special-purpose systems
006.22 Embedded computer systems [formerly 004.1]
006.24 Automatic identification and data capture (AIDC) (“Including magnetic stripe encoding”)
(See references lead to numbers for optical character recognition, speaker recognition, and biometric identification.)
006.242 Bar coding [formerly 006.42]
006.245 Radio frequency identification
006.246 Smart cards
By establishing classes for special-purpose systems and, under it, for automatic identification and data capture, we have provided a better organization for topics—embedded computer systems, bar coding—that had previously been classed less felicitously elsewhere.
The following are examples of works on these topics:
|
Title |
Class number |
|
Real-time embedded systems: optimization, synthesis, and networking |
006.22 |
|
006.242 |
|
|
006.245 |
|
|
006.246 |
New developments in 004-006 will continue indefinitely as new technologies, both new products and services, are created and more established technologies evolve. But for the time being, this and the previous posts on developments in 004-006 in DDC 23 are a snapshot of significant changes in the past several years. You can find the other posts by following these links:
Computer programming, programs, and data
Very hard to teach to greenhorn students. Print editions are necessary as a starting point. It is too easy for the beginner to lose context.
Posted by: Christina neigel | February 03, 2012 at 02:58 AM