“…5,6 Finally, the milestones are formulated to serve as a framework or guide for longitudinal assessment and a group decision process for determining competence, not a focal point in time assessment. 7 Using specific milestones abstracted from that developmental continuum to inform yes/no decisions in the very brief assessment window of a single emergency medicine shift risks loss of these benefits, and may potentially explain the disappointing performance of the ESE reported by Dehon et al 2 The use of milestones as a simple checklist also risks the deconstruction of the highly complex work of patient care. This realization, and the recognition that the resources required to assess all possible milestones are prohibitive, has led to increased interest in entrustmentbased assessment, or entrustable professional activities (EPAs).…”