The W3C Device Independence Working Group (DIG) has published a note on Delivery Context Overview for Device Independence. "This document provides an overview of the role of delivery context in achieving a device independent Web. It describes the kind of information that may be included in the delivery context, and how it may be used. It surveys current techniques for conveying delivery context information, and identifies further developments that would enhance the ability to adapt content for different access mechanisms."
The DIG group has also published the second working draft of Glossary of Terms for Device Independence. This defines a number of terms such as authored unit, browser, client, HTTP server, harmonized user experience, perceived unit, and so forth. New terms defined in this draft include aggregation, aggregated authored, physical transducer, single authoring, multiple authoring, and flexible authoring. The definitions of delivery context and decomposition have been modified.