Original comment (issue 1057 [1]):
http://lists.w3.org/Archives/Public/www-qa/2005Jan/0032.html

Thank you for your comment, which the QA Working Group has accepted. We have reworded the affected sections as you recommended and they now read [2]:

"Conformance is the fulfillment of a product, process, or service of specified requirements. These requirements are detailed in a specification as part of a conformance clause and in the body of the specification. A conformance clause is the section of a specification that identifies all the criteria that must be satisfied in order to claim conformance to the specification.

A clear presentation of conformance is crucial to successful interoperability of implementations. The conformance model and the language used for normative information determine the testability of a specification. They also influence the overall implementation landscape, ranging from a narrow conformance with few allowable variations in implementations to multiple conformance types, resulting in numerous conforming implementations. The model must be chosen carefully, to produce the intended implementation range."

[1] http://www.w3.org/Bugs/Public/show_bug.cgi?id=1057
[2] http://www.w3.org/QA/Group/2005/02/qaframe-spec/#specifying-conformance