For the second time, Medexter―in cooperation with Health Level Seven (HL7) Austria and the FH Technikum Wien―hosted a free one-day Arden Syntax training course. With the number of attendees more than doubled in comparison to last year’s course, CEO Klaus-Peter Adlassnig and Medexter’s Arden Syntax project leader Karsten Fehre presented a variety of topics such as clinical decision support, knowledge-based systems, medical logic module (MLM) programming, ArdenML, linguistic and propositional uncertainty, technical integration, clinical applications, barriers and acceptance in clinical routine, and others. The course's morning session was designed for Arden Syntax beginners and laypeople, whereas in the afternoon session, advanced topics were discussed. Attendees were students, doctors, journalists, health-IT personnel, and researchers. Medexter received great feedback, and we will be hosting another training course soon.