Patel-Schneider, Nuance Communications Alan Ruttenberg, Science Commons (Creative Commons) Uli Sattler, University of Manchester Michael Schneider, FZI Research Center for Information Technology Profiles (Second Edition) W3C Recommendation 11 December 2012 This version: Latest version (series 2): Latest Recommendation: Previous version: Editors: Boris Motik, University of Oxford Bernardo Cuenca Grau, University of Oxford Ian Horrocks, University of Oxford Zhe Wu, Oracle Achille Fokoue, IBM Corporation Carsten Lutz, University of Bremen Contributors: (in alphabetical order) Diego Calvanese, Free University of Bozen-Bolzano Jeremy Carroll, HP (now at TopQuadrant) Giuseppe De Giacomo, Sapienza Università di Roma Jim Hendler, Rensselaer Polytechnic Institute Ivan Herman, W3C/ERCIM Bijan Parsia, University of Manchester Peter F.