Data were collected from two sources. Structured interviews were conducted with the client sponsor in each case study. A structured interview was selected as the most appropriate instrument to collect qualitative data ([17] Kumar, 1996). The interview instrument was piloted and minor amendments made. All interviews were recorded and transcribed and varied in duration from 50 to 90 minutes. The other method of data collection was a review of secondary documentary evidence that might contain information related to benefits management processes. This included business cases, briefing documents, minutes of meetings, and post-occupancy evaluations. A systematic review of these documents was undertaken and data gathered for subsequent analysis.