Design of an Interoperability Architecture for STAGE Person-Centred Applications for Clinicians and Ageing Citizens

This paper presents the HL7 FHIR-based interoperability architecture developed within the STAGE Project to enable the seamless integration of personalised decision support, health monitoring, and health coaching applications for the prevention and management of ageing with multi-morbidity. The architecture leverages international standards, including CDS Hooks, SMART on FHIR, and the International Patient Summary (IPS), to support vendor-agnostic data exchange and scalable deployment across healthcare settings.