Abstract :
I face the assignment of writing an “expert opinion” on design and qualitative reasoning with considerable trepidation. I have been engaged in research on qualitative reasoning for some time now, but am not an expert on design. Having been schooled in mathematics and computer science, about the only things I have ever designed are mathematical proofs and computer programs. As far as I can recall, the only physical artifact I have ever built that required serious premedication worth being called design was the little digital circuit I constructed for the hardware portion of my PhD qualifying exam
