Ergonomics for Interaction Designers

I just completed writing a three-part series of postings on the topic of
ergonomics as it relates to interaction design - a topic of growing
relevance, I believe. It's primarily an introduction, focusing on
anthropometrics (fitting the design to the user). Recognizing that
ergonomics is something akin to the "organic chemistry" of design (i.e.
mathematical), I discussed some of the more qualitative methods for
observation and testing.

I'd appreciate any feedback on this topic (on or off list), particularly
whether it's of use/value of interaction designers, and what related
topics you'd like to hear more about.

Here's the link to Part 1 - http://tinyurl.com/72s5n7

Thanks,

Rob Tannen