Prof. Cees van der Vleuten, one of our visiting professors, offers a workshop on workplace based assessment.  With rise of competency-based education around the world, complex skills are being trained and assessed. These complex skills are behavioural and are best assessed in the real setting of clinical practice. Assessment therefore needs to move beyond standardized assessment into unstandardized assessment. This workshop explored the consequences and provided hands-on experience of what this means for clinical supervisors.