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Re: Review of Authoritative Metadata

From: Roy T. Fielding <fielding@gbiv.com>
Date: Wed, 29 Mar 2006 12:06:03 -0800
Message-Id: <2AB22DC1-B087-4E99-9458-9844FBDCF673@gbiv.com>
Cc: "Rice, Ed (ProCurve)" <ed.rice@hp.com>, www-tag@w3.org
To: noah_mendelsohn@us.ibm.com

Just to be clear, since it seems to have been lost in the noise,
I do believe that the finding applies equally to SOAP and WSDL.
Under no circumstances is a directory service more authoritative
than the service itself.  A discrepancy may indicate an error in
either the directory or the service, but the agent must treat the
service as authoritative because it is far more likely to be aware
of its own evolution over time than a disconnected directory.

This is no different from looking up a pharmacy in a phone book
and, upon calling the number supplied, discovering that a car
salesman answers the phone.  One should not attempt to buy drugs
from the car salesman just because the phonebook said they are
a pharmacy.

....Roy
Received on Wednesday, 29 March 2006 20:06:09 GMT

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