Interoperability Between Information Systems Concerning Electronic Records of Patients

The problematic over the interoperation between institutions in underdeveloped countries always presents good opportunities for science to contribute to substantial improvements in the real-world issues. The basic support systems such as the health institutions are among the ones that can most benefit from scientific advances. This paper reports an analysis done over the interoperability between health institutions, specifically regarding the interaction between medical centres and clinical laboratories where the main interoperability instrument is the patient record. This research was validated with a real practical use case that is presented in this paper. In order to make the information stored in different software applications of the national health system (SIS), more specifically in the Dr. Ayres de Menezes hospital, in the country of São Tomé and Príncipe, interoperable with the information systems of the clinical laboratories that support the hospital, two different applications were developed (Patient Management System and Clinical Analysis Laboratory Management System) to implement the interoperability between them. The Patient Management application requests medical exams from your Medical Appointment dashboard. The second application receives the exam request and after exams are processed and validated, the second system sends the result to the requesting application.To make the interoperability service effective, the SOAP protocol was used, which allowed the exchange of information synchronously between these two applications, allowing for faster transactions of patients' pathological data, and greater confidentiality of this same information.