ResearcherID: C-6231-2009. José Alferes is Professor of Computer Science, since November 2010, in the Department of Computer Science of the Faculty of Science and Technology of the NOVA University of Lisbon, where he entered in 2000 as Associate Professor. From September 2009 to September 2011 he was Head of the Computer Science Department, and since then he is vice-dean of FCT-NOVA. Since 2012 he is a Fellow of the European Association for Artificial Intelligence. He got a B.Sc. in Informatics Engineering in 1989 and a Ph.D. in Computer Science in 1993 by the NOVA University of Lisbon. From 1994 to 2000 he was Assistant Professor in the Department of Mathematics at the University of Évora, where he was Head of Department from 1995 to 1997. His main research interests are within the area of Artificial Intelligence, more specifically on Logic Programming, Non-Monotonic Reasoning, Knowledge Representation, Model Based Diagnosis. Recently, a great part of his research work is directed towards Knowledge Base Updates and Evolution and Reactivity in the Web, this latter topic being the main focus of a working group of EU project Rewerse coordinated by him. He co-authored over a hundred papers, and participated and coordinated several projects on these subjects. He also organized a number of conferences and served in editorial boards of journals and programme committees of conferences in these areas.