The working group will specify a structure in RDF and a schema for the context information. It will also present a base vocabulary, and a model describing how trust can be shared in this framework. This Briefing Package extends the original Briefing Package for the Mobile Access Activity in scope by adding a new working group, and in duration until November 2000. The methods for transporting information relating to context, capabilities, and preferences information in HTTP 1.1 has been presented as a W3C Note . This work is being aligned with the metadata transport questions which arise in P3P, and will be addressed and standardized by the P3P Working Group.
Several implementations are also underway.
This is not a solid base for implementation work. The IETF Content Negotiation working group has developed a schema, protocol transport, and framework for content negotiation. The IETF Content Negotiation framework has addressed several aspects which are not adressed in the W3C work. The Cameleon framework demonstrates the use of several namespaces in one document, which is used to manage several different schema. We propose the creation of a working group within the mobile activity of the W3C, to develop specifications and guidelines for the components needed to create a structure for context negotiation.