She is a specialist in the application of technology for strategy, learning and change in educational organisations and corporate training. She was a member of the Faculty of Educational Science and Technology (now, Behavioural Sciences) at the University of Twente from 1988 until she took early retirement at the end of 2005. Now she works full time as a consultant with her husband Professor Jef Moonen in Moonen and Collis Learning Technology Consultants.
At the University of Twente she was, among other things, head of the research team "Technology for Strategy, Learning and Change" and the leader of the TeleTOP project which developed a research-based course management system.
A full CV can be found at http://users.edte.utwente.nl/collis/.