RESUMEN
To illustrate to health professionals how interoperability may improve patient care we (1) built a prototype to automate the sequential organ failure assessment (SOFA) risk score and (2) designed its display on a medical dashboard. In Accordance with prioritized system requirements from stakeholder interviews, the prototype microservice uses FHIR as the first focus of this work. As the second focus, PretoFaces were used to facilitate user interface design feedback. Our interoperable prototype met all requirements of the highest priority. As a microservice in a SOA, it collects and extracts needed data from a FHIR server and computes the SOFA score and its subscores. Additionally, most requirements of second and third highest priority were met. In parallel, PretoFaces of interfaces were inspired by the requirements. We showed that an automatically computed SOFA score can be speedily developed using FHIR.