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   Re: [xml-dev] Web Services Best Practice (was: Interesting XML-DIST-APP

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On Thursday 10 January 2002 08:51 am, Roger L. Costello wrote:
> I started this discussion on the other list and have been truly
> fascinated by its flow.  Thanks everyone!
> I have been trying to summarize and organize in my mind all of the
> discussion.  It seems to me that the discussion is leading towards a
> "best practice" for using XML messaging (i.e., SOAP):
> 1. Stay away from using XML messaging to do fine-grained RPC.  For
> example, stay away from a service which returns the square root of a
> number.  Stay away from a service that returns a stock quote (this
> is the classic-cited example of a Web service).
> 2. Conversely, use course-grained RPC.  That is, use Web services
> that "do a lot of work, and return a lot of information".
> 3. Consider making the XML messages asynchronous.
> 4. Always take the overall system performance into account.  Don't
> fine-tune your XML messaging when it consumes a small percentage of
> the overall system time.

5. Ask yourself (your business/company) "Do I *really* have to do 
this"? Is there real ROI here?


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