"I have a mind like a steel... uh... thingy." Patrick Logan's weblog.

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Friday, April 04, 2003

A Perfectly Phrased Question re: Distributed Computing

Jon Udell puts it like this, referring to XML-RPC...

"Does distributed computing have to be any harder than this? I don't think so." In retrospect, that was a useful thing to ask at the time. Of course it conveniently swept under the rug a whole set of issues which we now gather under the rubric "service-oriented architecture." Today I might rather ask: "Does distributed computing have to appear to be any harder than this?"

Well said.

I attended another seminar last night on "Service Oriented Architecture". The result was another audience of essentially web and VB developers sitting in stunned silence as they attempt to relate the presentation to anything remote familiar in their own experience. Yet again the presentation included a parade of the various Web Services extensions:

  • WS-Addressing
  • WS-Coordination
  • WS-Inspection
  • WS-Policy
  • WS-Referral
  • WS-ReliableMessaging
  • WS-Routing
  • WS-Security
  • WS-Transaction

Of course Microsoft and IBM will attempt to "peanut butter" over the inherent complexity in their respective IDEs. But is this really necessary? Most of the cases I think could be solved more simply and so with a simpler presentation for the typical developer.

The two missing aspects of every presentation I've attended so far are:

  • Coherent use cases that demonstrate the advantages of when and how to use each of these features. A "Use Case" specifically would indicate who (which developer roles) would be interacting with which services during the processes of developing and deploying a "Service Oriented Architecture".
  • Evaluations of alternative strategies. These standards-in-progress are not mature. They do not strike me as "the simplest thing that could possible work". And yet they are just assumed to be the new "distributed system language" of the future, that will make everything better. I'd like to have some transparency into the decision making process, and see what alternatives have been discussed. Unfortunately having participated in the development of standards a couple of times, I know that alternative evaluations are rarely given their due.

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Portland, Oregon, United States
I'm usually writing from my favorite location on the planet, the pacific northwest of the u.s. I write for myself only and unless otherwise specified my posts here should not be taken as representing an official position of my employer. Contact me at my gee mail account, username patrickdlogan.