Special Purposes DOEs
Special purposes DOEs are suited for particular tasks to be achieved in design planning.
Constraint Satisfaction Problem is a necessary tool for strongly constrained problems, when the constraint are defined on input variables. This algorithm can find a feasible point in a fast and reliable way.
D-Optimal chooses a sub-set of the initial designs in order to minimize the correlation. It is particularly useful when classical factorial and orthogonal designs cannot be used, for example because the design space is constrained.

