…or lack thereof.
I suppose I’m an exception, because I come from a programming background, but I agree with his assertion about lack of tools.
For example, we Interaction Designers don’t have anything like what this Industrial Designer has. (That’s a car she’s prototyping, by the way.)
I don’t know if any of you mentor students, but one thing I always discuss with those interested in software is how much leverage I get from my programming background. The interesting thing is, I find the prototyping skills that come from my programming knowledge are far less valuable than the related language skills. Being able to talk about and empathize with the development team concerning programming issues gives me so much more credibility in their eyes.
I don’t think Interaction Designers should need programming skills, but until our tools get better, I guess were stuck with it as a work-around.