Specification and implementation of tests for complex, multi– user systems, like those based on SOA, is a demanding and time–consuming task. To reduce time and effort the specification of tests can be done at the model level. We propose platform independent test specification with our extension of the UML Testing Profile. The three phases of our approach: test design, generation and execution, are explained on an exemplary simple application. We show the differences and similarities of a desktop and a web services variant of the application in context of all phases. At the model level the approach abstracts from platform specific information, nevertheless this information is provided at the test infrastructure level of a proposed architecture. Based on the example application we point out extension possibilities of general character (templates, data pools) and specific for web services (integration with WSDL, BPEL).
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