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> ----- Original Message -----
> From: "Paul Prescod" <email@example.com>
> > In the standard modern architecture, you would use something like VFP to
> > talk to the relational database on the server side and generate an XML
> > view of the data. (XML+HTTP or XML+SOAP, depending on your tastes) Then
> > the client neither knows nor cares that the data is stored relationally.
> > And you can hook up dozens of different kinds of clients. A simple HTML
> > form one for the lynx users, a DHTML one for the IE 6 users, a VB one
> > for those willing to install a server app, a Java one for the Linux
> > clients, etc. It isn't browser OR VFP. It's using each at what it excels at.
> This works only when the information exchanged and the behaviour
> of the client is rather simple. As a corporate developer I have
> not come across a client yet that I could have implemented
> with a browser, not from a GUI capability point of view,
> nor from a user interaction standpoint.
> And often - this is a heretic opinion here - I would prefer
> DCOM or CORBA over XML for client/middle tier interaction,
> simply because XML/SOAP imposes a rather simple communication
> model, unless one is willing to re-invent CORBA based on XML.
I think you'll find this is only heresy among the punditeratti. I've been
working tentatively with SOAP for a long time, and yet for real world tasks I
am more likely to
1) Use CORBA (If XML messages are required, simple XML text exchange over
CORBA rules, and it's blazingly fast)
2) Use XML-RPC (mostly for quick hacks)
3) Roll my own (which I always *hate* doing, but sometimes you just can't get
around highly specialized needs)
I haven't yet come across a class of situations for which I would generally
tend to prefer SOAP. I expect this will change as the infrastructure
technologies and the WS stack mature.
Uche Ogbuji Fourthought, Inc.
http://uche.ogbuji.net http://4Suite.org http://fourthought.com
Python&XML column: 2. Introducing PyXML - http://www.xml.com/pub/a/2002/09/25/p
The Past, Present and Future of Web Services 1 - http://www.webservices.org/ind
The Past, Present and Future of Web Services 2 - 'http://www.webservices.org/in
Serenity through markup - http://adtmag.com/article.asp?id=6807
Tip: Using generators for XML processing - http://www-106.ibm.com/developerwork