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Re: Target namespace in WSDL

From: Sanjiva Weerawarana <sanjiva@watson.ibm.com>
Date: Tue, 25 Jun 2002 21:28:24 +0600
Message-ID: <045101c21c5c$f5b03510$02aa7cca@lankabook2>
To: "Martin Gudgin" <mgudgin@microsoft.com>, <www-ws-desc@w3.org>

I had already inserted an issue to address this in the version of
the doc published last week:

<issue id="issue-require-targetnamespace">
  <head>Require targetNamespace attribute?</head>
  WSDL 1.1 indicates that the targetNamespace attribute is
  optional. I would like to make it required as otherwise
  the NCNames used in other places don't make much sense.
  <source>Sanjiva Weerwarana</source>
</issue>

Can we get a quick consensus on requiring this? It seems the
only sensible thing to do ...

Sanjiva.

----- Original Message ----- 
From: "Martin Gudgin" <mgudgin@microsoft.com>
To: <www-ws-desc@w3.org>
Sent: Tuesday, June 25, 2002 4:08 PM
Subject: Target namespace in WSDL


> 
> Both WSDL and XML Schema have the notion of a target namespace. In XML
> Schema this property can be absent, denoting constructs that are not
> affiliated with a particular namespace. This was necessary because XML
> Schema describes XML instances, and elements in an XML instance may be
> unqualified ( not affiliated with a namespace ). 
> 
> The question I would like to pose is 'Does it makes sense to allow the
> target namespace property of WSDL components to be absent?'. And I will
> argue that it does not. WSDL does not describe XML instances, it
> describes messages, portTypes, bindings and services. I think it makes
> sense to mandate that these contructs always be affiliated with a
> namespace.
> 
> To this end, I propose that we mandate the 'targetNamespace' AII on the
> definitions EII. And that we modify the spec to say that the value of
> the AII must be a non-zero length URI.
> 
> Changes to spec
> 
> Section 3.1
> 
> Add a bullet between current bullets 2 and 3;
> 
> * A target namespace attribute information item amongst its [attributes]
> as described below
> 
> 
> Section 3.1.1
> 
> Add a third bullet
> 
> * A type of anyURI in the http://www.w3.org/2001/XMLSchema namespace
> 
> Add prose
> 
> The value of the targetNamespace attribute information item MUST NOT be
> the empty string.
> 
> 
> 
> Gudge
Received on Tuesday, 25 June 2002 11:29:20 GMT

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