4. Factor screening

Factor screening consists in distinguishing, from a set of potentially influential factors, those that are actually influential in a given field of study.

Among the experimental designs widely used for factor screening are those of :

• Plackett and Burman;

• Taguchi ;

• asymmetric screening ;

• supersaturated.

Plackett and Burman's designs, and to a lesser extent Taguchi's, were the most widely used.