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Re: Categories of Web Service messages: data-oriented vs acti

• To: xml-dev@l...
• Subject: Re: Categories of Web Service messages: data-oriented vs action-oriented
• From: "Roger L. Costello" <costello@m...>
• Date: Thu, 07 Feb 2002 11:01:07 -0500
• Organization: The MITRE Corporation
• References: <2C61CCE8A870D211A523080009B94E4306FEE7FF@HQ5>

Len Bullard wrote:

> Still mystified by this thread.

Len, I always greatly appreciate your informative, philosophical, and
humorous comments.  Let me see if I can elaborate on (my) purpose of the
thread.

Yes, this is an attempt to influence how web services will be designed
and the nature of XML messages.  I am very concerned that people will
use web services simply as another way to do tightly coupled RPC, i.e.,
procedure name plus parameters.  I think that XML-based web services
should provide a new paradigm, where the focus is on the data and
business processes.  I think that this involves a rather large mental
shift, from this mentality: 

- call this routine with these parameters, get these results back, 

to this mentality:

- here's business data, let me find one or more services that can
operate on the data.

I am looking/searching for a paradigm which will FORCE developers to
make that mental shift.  I have a gut feeling that requiring the
separation of the data from the action will be such a driving force. 
Developers are quite comfortable with colocating data and actions. 
Forcing them to separate the two, and thus focus on the data and
business processes will result in a quantum design/mental shift (IMHO). 
That's my ultimate objective.

Now back to the issue at hand ..  I take it from your comments that you
question the role of multiple actions?  /Roger

• Follow-Ups:
  • WSIO (was Re: Categories of Web Service messages)
    • From: "Simon St.Laurent" <simonstl@s...>

• References:
  • RE: Categories of Web Service messages: data-oriented vs action-oriented
    • From: "Bullard, Claude L (Len)" <clbullar@i...>

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