Before the detailed introduction of GARSC, there are certain constraints on data discretization to be defined. One is the maximum number of separation boundaries allowed in each dimension. This constraint straightforwardly determines the maximum number of fuzzy membership functions allowed in each dimension. However, the actual number of fuzzy membership functions formulated in each dimension is also determined by the knowledge reduction process. The smallest number of separation boundaries actually in use is zero, which means that particular feature is not considered in the simplified knowledge base. This constraint should not be set to a large value because employing a huge number of fuzzy membership functions degrades interpretability.