Very often in my discussions with interaction designers, there is strong agreement that their work should include in its assignment a broader range of interactions, including things like supply-chain systems, recycling techniques, intangible workflow processes, traffic interfaces, and even furniture. There is a hope that their discipline would have something important to say (and do) for the design of interaction wherever it may meaningfully occur. There is, however, less insight than enthusiasm into how other design disciplines have thought about these issues, and therefore where closer bonds are most needed…