The mission of the MedBiquitous Educational Trajectory Working Group is to develop an XML standard and accompanying guidelines to support the tracking, planning, and audit of learners' educational trajectory across medical schools and national organizations. Educational trajectory is the path of an individual learner through one or more programs of study and includes a sequence of formal curricular activities and events, informal professional development activities and events, and breaks in matriculation. Educational trajectory is likely to be different for every learner.