Evaluation of Service Designs Based on SoaML

In the context of service-oriented architectures, services are expected to fulfill certain service characteristics, such as high autonomy or loose coupling. In order to easily influence the design of these services, it is desirable to evaluate their characteristics early on in the development process, i.e. during design time. Related work focuses on the description of desired service characteristics that refer to services as a whole and does not address the evaluation of service designs in terms of their characteristics. Thus, in this paper, we analyze common and widespread service characteristics, derive evaluable design attributes that refer to elements of service designs based on SoaML, and demonstrate the formalization of an exemplarily design attribute using OCL. The application of the identified design attributes on a tentative service design of a service-oriented surveillance system helps to create a revised service design with improved service characteristics.