Screening designs are among the most popular designs for industrial experimentation. They are typically used in the initial stages of experimentation. They examine many factors to identify those that have the greatest effect on the response or responses. The factors identified are then studied using more sensitive designs.
Screening designs generally require fewer experimental runs than other designs. They are attractive because they are a relatively inexpensive and efficient way to begin improving a process.
In a screening design, each continuous factor is usually set at two levels to economize on the number of ...