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Comments on the Web Services Architecture Usage Scenarios document (was Re: New draft of the Web Services Architecture Usage Scenarios document)

From: Hugo Haas <hugo@w3.org>
Date: Thu, 20 Jun 2002 18:51:59 -0400
To: www-ws-arch@w3.org
Message-ID: <20020620225159.GH20006@jibboom.w3.org>

* Hugo Haas <hugo@w3.org> [2002-06-20 17:21-0400]
> Comments are welcome and encouraged.
[..]

... and I am sending comments right away.

I took lots of notes, but I need to decide which remarks are valuable
and which are just knit-picking. I will just write about the few ones
below for now:

S503 Namespaces with data and interfaces[1] is obscure to me. It seems
that it is not really a scenario, but more a requirement that, for
things to work, some information (in this case the namespaces) should
not be dropped unnecessarily. Since it says "It should be part of WSDL
compliance", we may want to send this comment directly to the Web
Services Description Working Group.

S600 Address based Discovery[2] is useful and relates to the "no a
priori knowledge" requirement. However, the description proposed is
complex: it seems to me that if somebody has a URL for something (a
service here), the natural thing to do is to do a GET on it.

Under candidate technologies for S600, I would list HTTP GET and the
output of the Web Services Description Working Group. It seems to me
that WSIL[3] is more a catalog of services and their descriptions,
which is a different kind of usage scenario IMO. BTW, I was looking at
the specification, and was wondering how generic and how Web
service-specific it was. I was wondering if something like RDDL[4]
could be used in such a way.

Regards,

Hugo

  1. http://www.w3.org/2002/ws/arch/2/wd-wsawg-scenarios-05012002.html#S503
  2. http://www.w3.org/2002/ws/arch/2/wd-wsawg-scenarios-05012002.html#S600
  3. http://www-106.ibm.com/developerworks/webservices/library/ws-wsilspec.html
  4. http://www.rddl.org/
-- 
Hugo Haas - W3C
mailto:hugo@w3.org - http://www.w3.org/People/Hugo/ - tel:+1-617-452-2092
Received on Thursday, 20 June 2002 18:52:00 GMT

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