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Re: Announce: A brief history of SOAP

From: Serdar Kilic <serdar@skilic.com>
Date: Wed, 4 Apr 2001 09:17:16 +1000
Message-ID: <010b01c0bc94$3ba67400$7201a8c0@balancedit.com.au>
To: <xml-dist-app@w3.org>
Excuse my ignorance on this, but isn't our XML document metadata itself ? So
our WSDL document will be metadata for metadata, true ?

Maybe it's just me and I don't have a full grasp on the issue, and/or, the
relevance of WSDL.

Just my 2c (well 4c US)

Cheers,
Serdar

----- Original Message -----
From: "Larry Cable" <larry.cable@sfbay.sun.com>
To: "Andrew Layman" <andrewl@microsoft.com>
Cc: <xml-dist-app@w3.org>
Sent: Wednesday, April 04, 2001 8:58 AM
Subject: Re: Announce: A brief history of SOAP


: Andrew Layman wrote:
:
: > If I send you a message such as
: >
: >         <Translate>
: >                 <gamma>123.45</gamma>
: >                 <epsilon>.67</epsilon>
: >                 <pi>3.14159</pi>
: >         </Translate>
: >
: > then you presumably either have somehow got some idea what this message
: > means and what its structure is etc., or you don't and cannot process it
: > (except as generic XML).  However you got the knowledge, that was the
: > metadata.
: >
: > In the case of the messages sent to the "SOAP Validator" at UserLand's
: > site, the documentation describing the messages is the metadata.
: >
: > I don't think you can do much without some metadata.  The only issue is
: > the form that the metadata takes, largely whether it is in a standard
: > form or not.
:
: I concur, furthermore I would reinforce your assertion that a std
mechanism
: for describing such meta-data
: is a "requirement" in order to enable both static and dynamic service
: discovery and subsequent conversations.
:
: Rgds
:
: - Larry Cable.
:
: >
: >
: > -----Original Message-----
: > From: Dave Winer [mailto:dave@userland.com]
: > Sent: Tuesday, April 03, 2001 3:31 PM
: > To: xml-dist-app@w3.org
: > Subject: Re: Announce: A brief history of SOAP
: >
: > Andrew I don't know enough about the kinds of environments you use, but
: > I'm
: > with Fredrik on this. We do just fine without any meta data. No
: > "requires"
: > here. Dave
: >
: > ----- Original Message -----
: > From: "Andrew Layman" <andrewl@microsoft.com>
: > To: <xml-dist-app@w3.org>
: > Sent: Tuesday, April 03, 2001 12:07 PM
: > Subject: RE: Announce: A brief history of SOAP
: >
: > > I think that the point is that any exchange of messages via SOAP (or
: > > otherwise) requires that the parties have mutual access to some sort
: > of
: > > metadata describing the types of the data being exchanged.  WSDL
: > > provides such metadata in an implementation-neutral way that supports
: > > and leverages the W3C specifications such as Schema.
: > >
: > > -----Original Message-----
: > > From: Fredrik Lundh [mailto:fredrik@pythonware.com]
: > > Sent: Saturday, March 31, 2001 2:35 AM
: > > To: Box, Don
: > > Cc: xml-dist-app@w3.org
: > > Subject: Re: Announce: A brief history of SOAP
: > >
: > >
: > > > You can read it at http://www.develop.com/dbox/postsoap.html
: > >
: > >     "Does SOAP/XML Messaging make sense without something like
: > >     WSDL? No way"
: > >
: > > huh?  I've got lots of users for my python soap implementation,
: > > and now you're saying that what they do doesn't make sense?
: > >
: > > what have we missed?
: > >
: > > Cheers /F
: > >
:
:
Received on Tuesday, 3 April 2001 19:17:42 GMT

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