December 22nd, 2008 by Peter Wolfe
I still remember the Brady Bunch episode in which Greg talked his parents into remodeling their attic into his bedroom (after a fight with Marcia over whose room it should be). From the moment I first saw that show, I dreamt of overhauling my parents’ attic. Today, many engineers are doing just that–-repurposing their attics and making better use of them. However, the attics which I am referring to are not in their homes, but rather in their Quality Function Deployment matrices (i.e. “Houses of Quality”). Although many customizations have been made to the QFD “roof”, my favorite modifications is the addition of the “dependency” concept.