This presentation will focus upon cost-effectiveness analysis (CEA) as systems engineers are looking for cost-effective solutions; CEA is a proven method for choosing the best answer from a set of alternatives; a brief look at examples from the military as well as from everyday consumer decisions; three solution domains are recognized explicitly: low cost, low effectiveness, knee-of-the-curve, and high effectiveness, high cost; the role of cost-effectiveness in systems architecting is explored; this approach leans on Rechtin's KISS heuristic.  (Howard Eisner, Speaker)