| Abstract |
All current efforts, taking place in health informatics, have as an objective the delivery of complete and qualitaty health services to the patient. The utilization of standardized methods for the exchange, administration and disposal of clinical information increases performance and facilitates the cooperation of distributed information systems of the health domain (e.g. systems for accounting, health records, pharmacy etc). Consequently, the use of proper standards is necessary in such a way that the interoperability of systems managing health information, can be a fact. In the current work, a number of communication scenarios among subsystem of an intergraded hospital information system have been developed and implemented, describing the most important events which take place within the environment of an organization providing health care. Since the objective is the achievement of interoperability among heterogeneous systems, Health Level 7 (HL7), which is a widely used standard, has been adopted. HL7 enables distributed information systems to exchange pieces of information through messages without imposing internal limitations, concerning the way they processor store this piece of information. The objective of this work has been the study and assessment of two architectural approaches of communication, client-server and message broker. The need of this evaluation has come up due to the individuality of the health area to comprise heterogeneous information systems being distributed in different environments as well as due to the need for the discovery of new ways for the provision qualitative health services. The existence of the message broker seems to provide additional facilities and capabilities to health care organizations, security in communication and minimization of faults during the exchange of data. The study and assessment of these approaches carried out was based on real scenarios, providing useful results concerning an architecture liable for adoption in an integrated healthcare network.
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Σχεδιασμός, ανάπτυξη και σύγκριση εναλλακτικών αρχιτεκτονικών προσεγγίσεων επικοινωνίας με βάση το πρότυπο HL**7
