Contemporary healthcare systems generate large amounts of data. In an ideal scenario, these systems would be closely interlinked and the data within them easily shared to optimise care for patients. However, the complexities of both healthcare and data, as well as the scale of these systems and the large number of different individuals involved – healthcare professionals and patients – means this is far from simple. This short course from RCSI will examine some of the key technologies relevant to digital health today. It will guide you towards an understanding of these technologies and how they are used on an operational level.