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Service-oriented applications have been modeled with different modeling languages and diagrams, which suggests a lack of standardization. Although UML concepts for modeling SOA can be regarded as a good starting point, it is not an entirely feasible approach, as UML has not been proposed with the purpose of modeling services and SOA applications. Besides, the proper concept of service is absent in UML. SoaML is a UML profile for the specification and design of services within a service-oriented architecture. One of the advantages of using SoaML to model interoperability between systems in health care is that it is possible to model the consumers and service providers. This would be quite difficult to achieve using UML only. Therefore, the main contribution of this work is to manipulate a relatively new modeling language to real operational problems related to the integration of health systems.

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