One-factor-at-a-time Screening Designs for Computer Experiments

This short note presents some initial results on the study of one-factor-at-a-time (OFAT) screening designs for computer experiments. Both main effects and two-factor interactions are under our consideration. After the development of swapping and union techniques in general, we study the standard OFAT plan by Daniel (1973) and Qu and Wu (2005). A fast OFAT plan is proposed with a stopping rule via capping technique, which is similar to the variable search procedure by Shainin (1988) under sign restriction.