Negotiating capabilities/features is a pretty common thing
in client/server protocols, including IPP. I'm forwarding
this in case anyone is interested.
...jay
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Content Negotiation Working Group of the IETF.
Title : An algebra for describing media feature sets
Author(s) : G. Klyne
Filename : draft-ietf-conneg-feature-algebra-00.txt
Pages : 16
Date : 11-Mar-98
A number of Internet application protocols have a need to provide
content negotiation for the resources with which they interact [1].
A framework for such negotiation is described in [2]. Part of this
framework is a way to describe the range of media features which
can be handled by the sender, recipient or document transmission
format of a message. A format for a vocabulary of individual media
features and procedures for registering media features are
presented in [3].
This document describes an algebra which can be used to define
feature sets which are formed from combinations and relations
involving individual media features. Such feature sets are used to
describe the media feature handling capabilities of message
senders, recipients and file formats. This document does not set
out to specify a syntax for defining feature sets.
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