Today, the Medical University of Vienna and Medexter Healthcare, Vienna, can look back to 15 years of successful cooperation in clinical decision support with Medexter's Arden-Syntax-based clinical knowledge representation and processing software ArdenSuite. The journey started in 2008. Since then, this software has been applied to a number of research and clinical projects at the Medical University of Vienna and its associated University Hospital of Vienna. The Arden Syntax is an internationally established Health Level 7 (HL7) standard for providing computerized clinical knowledge. Its platform software ArdenSuite can access various data sources such as databases, FHIR resources, and electronic medical record systems.