In November 2009, the BC Council on Admissions and Transfer (BCCAT) hosted a "Visioning Session" to revisit the framework and definitions that have been used to measure the mobility of transfer students in British Columbia. Members of BCCAT's standing committees participated along with representatives from the Ministry of Advanced Education and Labour Market Development (ALMD) and the Student Transitions Project (STP). Among the 25 present from across the province were registrars, institutional research directors, senior administrators, a high school principal, two post-secondary advisors, and a private institutions representative. After hearing presentations on the research on student mobility that has been undertaken to date by BCCAT and the STP, the Visioning Session participants were asked to develop a definition of a mobile student and to identify the top subpopulations of mobile students that they felt are worthy of future study. Some of the barriers to research about these subpopulations and policy questions surrounding them were also identified. Finally, support for continuing to focus research on the "traditional" transfer student population (transfers to research universities) was gauged. The outcomes of deliberations are outlined in a discussion paper which was then circulated more broadly across the system for further response. Feedback to this paper is outlined in this document.