Practice and Theory of Automated Timetabling IV : 4th International Conference PATAT 2002 Gent Belgium August 21 23 2002. Selected Revised Papers This book constitutes the thoroughly refereed post proceedings of the 4th International Conference on Practice and Theory of Automated Timetabling PATAT 2002 held in Gent Belgium in August 2002. The 22 revised full papers presented were carefully selected during two rounds of reviewing and improvement. The papers are organized in topical sections on general issues sports timetabling employee timetabling examination timetabling and university course and school timetabling