The above link is to a google doc (odd publishing platform if ya ask me).
The document outlines 3 levels of practice within the role of Interaction Designer as defined by the Human Interaction Community inside the Industrial Design Society of America, IDSA.
As someone who's been actively working with this community I was a bit surprised this was published like this. But heck, its as good an attempt as any out there today. I do think its going to upset some people b/c of what it assumes about the role of designer.
Let the games continue/commence.
BTW, I would say that a professional community does often try to define oneself, and I wonder how much longer we as a community can focus on the discipline and not on the people? It is the people who we serve the most after all, right?