| When the cost of experiments is expensive and the number of factors is large, the first step in experimental study would be an identification of the active factors in order to perform experiments on a few factors. Supersaturated design would be helpful in such a situation, because it is a kind of fractional factorial design in which the number of columns is greater than or equal to the number of rows. Supersaturated design is one of the most recent topics in the techniques of experimental design. This paper reviews recent developments in supersaturated design in terms of mathematical properties, construction methods and efficiencies of the constructed designs. Furthermore, the new research areas in which we needed to develop is discussed. |