Today, ID Information and Documentation in Health Care, Berlin, and Medexter Healthcare, Vienna, look back on 15 years of successful cooperation. The joint journey started in 2007. Since then, ID Berlin applies Medexter’s Arden-Syntax-based rule engine software in several of their products. Arden Syntax is an internationally established Health Level 7 (HL7) standard for representing, processing, and providing computerized clinical knowledge. Our sincere thanks go to ID Berlin; we hope for many more wonderful years together!