| Article ID: | iaor20141842 | 
| Volume: | 238 | 
| Issue: | 1 | 
| Start Page Number: | 290 | 
| End Page Number: | 299 | 
| Publication Date: | Oct 2014 | 
| Journal: | European Journal of Operational Research | 
| Authors: | Ackermann Fran, Walls Lesley, Quigley John, Howick Susan, Houghton Tom | 
| Keywords: | causal mapping | 
As evidenced through both a historical and contemporary number of reported over‐runs, managing projects can be a risky business. Managers are faced with the need to effectively work with a multitude of parties and deal with a wealth of interlocking uncertainties. This paper describes a modelling process developed to assist managers facing such situations. The process helps managers to develop a comprehensive appreciation of risks and gain an understanding of the impact of the interactions between these risks through explicitly engaging a wide stakeholder base using a group support system and causal mapping process. Using a real case the paper describes the modelling process and outcomes along with its implications, before reflecting on the insights, limitations and future research.