A Uniform Framework for Rough Approximations Based on Generalized Quantifiers.- PRE and Variable Precision Models in Rough Set Data Analysis.- Three Approaches to Deal with Tests for Inconsistent Decision Tables - Comparative Study.- Searching for Reductive Attributes in Decision Tables.- Sequential Optimization of c-Decision Rules Relative to Length, Coverage and Number of Misclassifications.- Toward Qualitative Assessment of Rough Sets in Terms...