Layering of protocols o ers several well-known advantages, but typically leads to performance ine ciencies. We present a model for layering, and point out where the performance pr...
Communicating the subtleties of a craft technique, like putting a zipper into a garment or throwing a clay pot, can be challenging even when working side by side. Yet HowTo conten...
Cristen Torrey, Elizabeth F. Churchill, David W. M...
During conversations, speakers establish their and others’ participant roles (who participates in the conversation and in what capacity)—or “footing” as termed by Goffman...
This paper describes user modelling in I-Help, a system to facilitate communication amongst learners. There are two I-Help components: Private and Public Discussions. In the Privat...
Susan Bull, Jim E. Greer, Gordon I. McCalla, Lori ...
A prototype of computing technology--as a means to evaluate and communicate a good idea--is often an essential step towards useful, shipping products and towards a deeper understa...
William Jones, Jared M. Spool, Jonathan Grudin, Vi...