Dive into a groundbreaking resource that equips healthcare professionals, Enterprise Architects, and IT decision-makers with the essential tools to enhance patient care and streamline operations within hospitals of all sizes and locales. In an era of Digital Transformation, this guide is your compass. Introducing the ZiRA Hospital Reference Architecture in English, a pioneering open-source solution developed by healthcare experts, for healthcare experts. Building upon the foundation of the renowned Dutch ZiRA and our collaboration with Nictiz, the Center of Excellence for Health IT in The Netherlands, this guide offers an accessible translation, clear insights, and essential updates. Discover why the ZiRA in English Guide by The Open Group fills a critical void, providing a trusted, internationally relevant reference architecture tailored to the unique needs of hospitals worldwide. Hospitals are the backbone of healthcare, accounting for a substantial portion of spending in the US and EU, yet they grapple with the challenges of a digital era. This guide empowers hospitals to thrive in today's evolving healthcare landscape.