This book constitutes the thoroughly refereed joint post-proceedings of four international workshops held in conjunction with the 20th International Conference on Conceptual Modeling ER 2002, held in Yokohama, Japan in November 2002 The 37 revised fullpapers presented were carefully selected and improved during two rounds of reviewing оеьщэ and revision In accordance with the respective workshops, the papers are organized in topical sections on conceptual modeling and human, organizational, and social aspects; data semantics in web information systems; conceptual modeling approaches for e-business; and global data modeling.  KLoveskISBN 3540441220.