Here is an article that I meant to share with all of you sooner. It is a framework for critiquing interfaces, from Bertelsen & Pold. You may find it helpful as you work on your papers. From a philosophical standpoint, I have some issues with it. But from a practical standpoint, I’m really glad it’s available. If I had designers working for me, I would certainly encourage them to use this. 

http://portal.acm.org/citation.cfm?id=1028018

Abstract: In this paper we discuss the re-orientation of human-computer interaction as an aesthetic field. We argue that mainstream approaches lack of general openness and ability to assess experience aspects of interaction, but that this can indeed be remedied. We introduce the concept of interface criticism as a way to turn the conceptual re-orientation into handles for practical design, and we present and discuss an interface criticism guide.