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A fully abstract trace semantics for UML components

We present a fully abstract semantics for UML components. This semantics is formalized in terms of a notion of trace for components, providing a description of the component externally observable behavior inspired by UML sequence diagrams. Such a description abstracts from the actual implementation given by UML state-machines. Our full abstraction result is based on a may testing semantics which involves a composition of components in terms of crossborder dynamic class instantiation through component interfaces.