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<DIV><FONT color=#000000><FONT size=3>Rick,</FONT></FONT></DIV>
<DIV><FONT color=#000000><FONT size=3></FONT></FONT><FONT color=#000000 face=""
size=3> <FONT
color=#000000>Thanx for the info.</FONT></FONT></DIV>
<DIV> </DIV>
<DIV>> Instead have put in chapter 3 "Software Engineering" a
summary of various </DIV>
<DIV>> methodologies used in practise for developing DTDs. </DIV>
<DIV> </DIV>
<DIV>
<DIV><FONT color=#000000><FONT size=3>If you could kindly guide me to any URLs
regarding Software Engineering Methodologies used for DTDs.</FONT></FONT></DIV>
<DIV><FONT color=#000000><FONT size=3></FONT></FONT><FONT
size=3></FONT> </DIV>
<DIV><FONT color=#000000><FONT size=3>Thanx in advance,</FONT></FONT><FONT
size=3></FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000
size=2>
AMIT </FONT></DIV></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
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<BLOCKQUOTE
style="BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<DIV><FONT face=Arial size=2><B>-----Original Message-----</B><BR><B>From:
</B>Rick Jelliffe <<A
href="mailto:ricko@allette.com.au">ricko@allette.com.au</A>><BR><B>To:
</B>XML Mail List <<A
href="mailto:xml-dev@ic.ac.uk">xml-dev@ic.ac.uk</A>><BR><B>Date:
</B>Sunday, July 12, 1998 5:28 PM<BR><B>Subject: </B>RE: Merging Object
Oriented Design and SGML Architectures<BR><BR></DIV></FONT>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2>The big fat Cue book (I think it is called "Using SGML")
has a chapter relating Smalltalk to SGML.</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2>Steve Newcomb has pointed out (reference lost-sorry) that SGML/XML
and OO to a large extent have dissimilar goals, in that SGML/XML (i.e.
generic markup) are attempts to (allow you to) have your data INDEPENDENT of
particular methods while OO is an attempt to bundle methods with data.
However, since the introduction of the PI target in XML, it is better to say
that SGML/XML are attempts to (allow you to) have your data in a form which
allows multiple methods to be attached. </FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2>The big fat Holzer book (I think it is called "XML
Complete") is full of code and analysis relating Java to XML. (But the
reviews on amazon.com suggest that it may relate to a superceded version of
MSXML too much.)</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial size=2>In
a sense, a lot of the questions about OO and XML may already be answered, in
that XML/SGML embody a particular document system design methodology (i.e.
generalized markup) and because common parsers will be using three
APIs:</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN><SPAN class=628024319-10071998><FONT color=#0000ff
face=Arial size=2> * SAX, which XML-DEV contributed
to</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN><SPAN class=628024319-10071998><FONT color=#0000ff
face=Arial size=2> * DOM, see <A
href="http://www.w3.org/TR">www.w3.org/TR</A></FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN><SPAN class=628024319-10071998><FONT color=#0000ff
face=Arial size=2> * GROVES: this is the big daddy of them
all, and is not so much an API as an analysis of the properties needed for a
complete and general SGML/XML/HyTime "parse tree". (In fact any
data format whcih can be parsed into a tree with inter-node directed-graph
arcs can be represented by GROVE, e.g. CGM the graphics format. Using the
same GROVE concept allows navigation languages like Xptr to be defined that
can locate particular nodes in the tree, regardless of what notation the
tree was parsed from.) The GROVES information is at <A
href="http://www.ornl.gov/sgml/wg8/docs/n1920/html/clause-7.1.html#clause-7.1.4">http://www.ornl.gov/sgml/wg8/docs/n1920/html/clause-7.1.html#clause-7.1.4</A>
might be useful place to start.</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial size=2>My
big fat book, The XML and SGML Cookbook, does not have much OO in it
(intentionally: there is no progamming code in it). Instead have put in
chapter 3 "Software Engineering" a summary of various
methodologies used in practise for developing DTDs. This is because once you
have the generalized model OK, you can add methods (explicitly by using
#FIXED attributes in the DTD, or by invoking a CSS-like stylesheet where
there is an element type to contain mthod code or location, or by using
PIs.) So the emphasis is that the more richly and appropriately
your data is marked up, the less programming work (including OO analysis and
design) there is to do.</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2>There is a widespread feeling in the SGML world that you should mark
up data independent of any particular use of it. However, I certainly
believe that a good DTD design will be informed by the known and potential
uses of the data. In a way it comes down to whether you view XML as a
"serialization format" format, where it is just dumping data from
a known schema and known application, or whether it is "markup
language" where you want to expose interesting and useful information
to make life simpler for future software development.</FONT></SPAN></DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=628024319-10071998><FONT color=#0000ff face=Arial
size=2>Rick Jelliffe</FONT></SPAN></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #0000ff solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<DIV class=OutlookMessageHeader><FONT face="Times New Roman"
size=2>-----Original Message-----<BR><B>From:</B> <A
href="mailto:owner-xml-dev@ic.ac.uk">owner-xml-dev@ic.ac.uk</A>
[mailto:owner-xml-dev@ic.ac.uk]<B>On Behalf Of</B> Amit
Rekhi<BR><B>Sent:</B> Friday, 10 July 1998 23:12<BR><B>To:</B> XML Mail
List<BR><B>Subject:</B> Merging Object Oriented Design and SGML
Architectures<BR><BR></FONT></DIV>
<DIV><FONT color=#000000 size=2>Hello,</FONT></DIV>
<DIV><FONT color=#000000
size=2>
Could anyone please guide to articles/technical notes regarding OOD and
SGML Architectures.</FONT></DIV>
<DIV><FONT color=#000000
size=2>
Any help will be greatly appreciated</FONT></DIV>
<DIV><FONT color=#000000
size=2>
Thanx,</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT color=#000000
size=2>
AMIT</FONT></DIV>
<DIV><FONT color=#000000
size=2></FONT> </DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>