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Clarification sought re "whenToUseGet"

From: Mark Baker <distobj@acm.org>
Date: Wed, 3 Dec 2003 22:55:44 -0500
To: www-tag@w3.org
Message-ID: <20031203225544.I921@www.markbaker.ca>

Hi,

I have a question regarding the "whenToUseGet" finding[1].  The general
position of the finding seems to be summed up in section 1.3, the "Quick
Checklist";

  "Use GET if [...] The interaction is more like a question (i.e., it
   is a safe operation such as a query, read operation, or lookup)."

However, in section 6, regarding Web services and WSDL, the following is
found;

  "Section 3 WSDL 1.2 Bindings [WSDL] provides a binding to HTTP GET,
   which makes it possible to respect the principle of using GET for
   safe operations. However, to represent safety in a more
   straightforward manner, it should be a property of operations
   themselves, not just a feature of bindings."

These statements seem inconsistent to me.  The latter seems to be saying
that it's ok to have a safe operation which isn't GET as long as it's
marked as safe, while the former says that in general (modulo the
described practical considerations), the only safe operation should be
GET.

Could the TAG please clarify this?  Thanks!

 [1] http://www.w3.org/2001/tag/doc/whenToUseGet.html

Mark.
-- 
Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Received on Wednesday, 3 December 2003 22:52:24 GMT

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