Holbaek-Hanssen and Petter Haandlykken. Nygaard was a professor at Aarhus University, Denmark (1975–1976) and then became professor emeritus at the University of Oslo (part-time from 1977, full-time 1984–1996). His work in Aarhus and Oslo included research and education in system development and the social impact of computer technology, and became the foundation of the Scandinavian School in System Development, which is closely linked to the field of participatory design. Starting in 1976, he was engaged in developing and (since 1986) implementing the general object-oriented programming language BETA, together with Bent Bruun Kristensen, Ole Lehrmann Madsen, and Birger Møller-Pedersen. The language is now available on a wide range of computers. Later career In the first half of the 1980s, Nygaard was chairman of the steering committee of the Scandinavian research program System Development and Profession Oriented Languages (SYDPOL), coordinating research and supporting working groups in system development, language research, and artificial intelligence. Also in the 1980s, he was chairman of the steering committee for the Cost-13 (European Common Market Commission)-financed research project on the extensions of profession-oriented languages necessary when artificial intelligence and information technology are becoming part of professional work. Nygaard's research from 1995 to 1999 was related to distributed systems. He was the leader of General Object-Oriented Distributed Systems (GOODS), a three-year Norwegian Research Council-supported project starting in 1997, aiming at enriching object-oriented languages and system development methods by new basic concepts that make it possible to describe the relation between layered and/or distributed programs and the computer hardware and people carrying out these computer programs. The GOODS team also included Haakon Bryhni, Dag Sjøberg, and Ole Smørdal. Nygaard's final research interests were studies of the introductory teaching of programming, and creating a process-oriented conceptual platform for informatics. These subjects are to be developed in a new research project named Comprehensive Object-Oriented Learning (COOL), together with several international test sites. He was giving lectures and courses on these subjects in Norway and elsewhere. In November 1999, he became chair of an advisory committee on Broadband Communication for the Norwegian Department for Municipal and Regional Affairs. He held a part-time position at Simula Research Laboratory from 2001, when the research institute was opened. Recognition In June 1990, he received an honorary doctorate from Lund University, Sweden. In June 1991, he became the first individual to be given an honorary doctorate by Aalborg University, Denmark. He became a member of the