Information System Concepts: An Integrated Discipline Emerging: IFIP TC8/WG8.1 International Conference on Information System Concepts: An Integrated Discipline Emerging (ISCO-4)September 20–22, 1999, University of Leiden, The Netherlands

Designing Ubiquitous Information Environments: Socio-Technical Issues and Challenges: IFIP TC8 WG 8.2 International Working Conference, August 1-3, 2005, Cleveland, Ohio, U.S.A.

Design Requirements Engineering: A Ten-Year Perspective: Design Requirements Workshop, Cleveland, OH, USA, June 3-6, 2007, Revised and Invited Papers