Sue Holwell joined Cranfield University in 1998 and taught on the MSc in the Design of Information Systems and MBA at the Royal Military College of Science. In April 2002 she joined the Systems Department at the Open University. She is currently Senior Lecturer in Information Systems, Centre for Complexity and Change, Technology Faculty, Open University.

Dr Martin Reynolds joined OU in 2000. He previously worked with Gerald Midgley at Hull University co-authoring Operational Research and Environmental Management with support from the Operational Research Society. His interest in critical systems came through PhD work on participatory natural resource-use appraisal in Botswana, based at the Institute for Development Policy and Management (IDPM).