I-TRIER brings as a legacy one of the very first fully digitized Triage Solutions, widely adopted Crisis Management Systemand Computer Aided Dispatch systems and a unique toolkit of Hospital Management Systems providinginteroperability solutions for unifying Emergency and Victim Tracking data domains with the health-data related ones. i-TRIER brings also at the forefront the citizens through the management of their PHR and by securely providing access to it by EMS. A modular, open, interoperable yet strongly integrated solution will be provided, through advancements in existing functionalities both in hardware and software components. i-TRIER will establish a flexible interoperability framework through an efficient streaming mechanism and local exchange of information. Towards the design and testing of the i-TRIER solution, the technology providers will be supported by experts throughout its development stages, ensuring that KPIs related to the MCI response will be improved.