# Artefact Kinds Ontology and the Human-Made World **Opening (not a real abstract):** DIRK VAN DALEN, University of Utrecht, The Netherlands THEO A.F. KUIPERS, University of Groningen, The Netherlands TEDDY SEIDENFELD, Carnegie Mellon University, U.S.A. PATRICK SUPPES, Stanford University, California, U.S.A. JAN WOLEŃSKI, Jagiellonian University, Kraków, Poland **Authors:** [[Franssen]]