- This document describes how Internet clients may negotiate for content provided by servers based on the -+ profile to which the content conforms. This is distinct from negotiating by Media Type or Language: a profile may + This document describes how Internet clients may negotiate for content provided by servers based on + data profiles to which the content conforms. This is distinct from negotiating by Media Type or Language: a profile may specify the content of information returned, which may be a subset of the information the responding server has about the requested resource, and may be structured in a specific way to meet interoperability requirements of a community of practice.