I recently found the paper "The Three Paradigms of HCI" by Steve Harrison, Phoebe Sengers, and Deborah Tatar from CHI 2007. Strangely enough I have not seen this paper before, which is too bad. I very much like the basic idea of the paper and the way they describe three paradigms of HCI. I like it because they make definitions, categorize things, creates a conceptual map, that is, they theorize about theory in HCI. Something that needs to be done much more! And they do it in a way that makes me want to discuss the paradigms further and to continue to develop the ideas . These are signs of a good paper. There are of course arguments that I don't agree with, but that just makes the paper even more valuable :-) Find it and read it!!
Thanks to Kevin here is a link to the paper!