pointer to an earlier workshop on Conversational Applications

The W3C held a workshop in 2010 on Conversational Applications
http://www.w3.org/2010/02/convapps/summary.html that might have some useful
ideas for this group. Even though this was basically before virtual
assistants became common, I think there were some ideas for new standards
that might be relevant to this group's work. The attendees came up with 12
use cases (not really use cases, but problems with the current standards). I
though UC-1 (new ways of defining language models), UC-4 (semantic
representation of dialog state) and UC-15 (support for problem solving
applications) were especially relevant.