Implementation of outcome (competency) based medical education: a scoping review of 30 years of evidence

Outcome (Competency) Based Education (OBE) defines the paradigm of the 21st century, offering clearer, more coherent, and more transparent milestones of achievement. This scoping review aims to investigate the extent of the literature on OBE implementation in medical education, identify common and varied approaches, the barriers and facilitating factors, and highlight strategies to maximise its benefits while remaining mindful of OBE’s known shortcomings and pitfalls. The robust, structured search strategy includes relevant keywords to represent OBE, implementation, and medical education across the PubMed and Scopus Databases. Using a PICOT-guided approach, we included studies involving medical education (P), OBE implementation strategies (I), with or without comparison groups (C), reporting educational or implementation outcomes (O), published between 1995 and 2025 (T). Study selection followed the PRISMA-ScR guidelines. Of the 856 studies identified, 19 were finally included. Entrustable Professional Activities, portfolio or programmatic assessment, faculty development initiatives, and digital learning tools. Reported outcomes showed improved learner preparedness, clearer competency expectations, and stronger feedback practices. Major barriers included faculty workload, documentation burden, faculty time constraints, immature infrastructure, and inconsistent assessment practices. Facilitators included strong institutional leadership, an active education unit, and ongoing faculty development. Successful OBE implementation includes clear outcome/competency frameworks, sustained institutional support, structured training, and an emphasis on alignment between outcomes, teaching, assessment, and evaluation. Institutions that have a supportive culture and are responsive to feedback appear to reflect strong buy-ins, which are essential ingredients for successful OBE implementation.