Box-Behnken Designs

Box-Behnken designs allow you to consider from three to nine quantitative factors at three levels each (one level being the center point between the high and low levels, which are the only levels you define when you are creating the design). The designs are spherical and rotatable or nearly rotatable. If setting all factors at the high level at the same time carries a risk of equipment damage or otherwise violates constraints, these designs provide a matrix that avoids setting all factors at extreme values simultaneously.

Available Box-Behnken Designs

The available Box-Behnken designs are shown next. This information is applicable to designs with standard response data, as well as robust parameter designs and reliability DOE.

This table provides information about how many non-center point runs will be used in the design, based on the number of factors, as well as how many center points will be used by default. For example, if you are using 5 factors, the design will use 40 non-center point runs and will use 6 center points by default.