Five years ago, Austria’s largest hospital―the Vienna General Hospital (2100+ beds)―together with the Medical University of Vienna decided to add clinical decision support (CDS) to their hospital information system i.s.h.med. Opting for Medexter’s CDS solution ArdenSuite, they acquired an extended site license for both patient care as well as for research and teaching purposes. Present ArdenSuite applications at the Vienna General Hospital are: “Standard operating procedure (SOP) checking for chemotherapy treatment of melanoma patients” (see image), “Prediction of metastases in melanoma patients”, and "Dosing of immunosuppressive drugs for kidney transplant patients". The necessary Arden Syntax medical logic modules (MLMs) for these applications were developed either by the Medical University of Vienna’s research groups or by Medexter―in either case in close cooperation with the hospital’s clinicians. To access the ArdenSuite applications from i.s.h.med’s user interface, new interface elements have to be programmed. This can be done by skilled hospital IT staff, by the i.s.h.med vendor, or by Medexter’s development team.