Brian Henderson-Sellers is Director of the Centre for Object Technology Applications and Research and Professor of Information Systems at the University of Technology, Sydney (UTS). He is author or editor of over 30 books and is well known for his work in OO and AO methodologies, OO metrics and metamodelling. He is Co-Editor of the ISO/IEC 24744 International Standard and was Chief Editor of the International Journal of Agent-Oriented Software since its inception until 2015. In July 2001, Professor Henderson-Sellers was awarded a Doctor of Science (DSc) from the University of London for his research contributions in object-oriented methodologies and, in 2010, the Consensus IT Professionals Award. His most recent work focusses on integrating ontology, language use and philosophy into conceptual and design modelling languages.Brian Henderson-Sellers is Director of the Centre for Object Technology Applications and Research and Professor of Information Systems at the University of Technology, Sydney (UTS). He is author or editor of over 30 books and is well known for his work in OO and AO methodologies, OO metrics and metamodelling. He is Co-Editor of the ISO/IEC 24744 International Standard and was Chief Editor of the International Journal of Agent-Oriented Software since its inception until 2015. In July 2001, Professor Henderson-Sellers was awarded a Doctor of Science (DSc) from the University of London for his research contributions in object-oriented methodologies and, in 2010, the Consensus IT Professionals Award. His most recent work focusses on integrating ontology, language use and philosophy into conceptual and design modelling languages.