Interaction Transformation Patterns Based on Semantic Roles

This paper presents a strategy to deduce interactions from the text of use cases. This strategy is used by Metamorphosis: an automatic software production framework, conceived to facilitate the modelling of interactions of a system. Metamorphosis follows a linguistic engineering approach that is centred on the construction of models through the successive transformation of these models, in the definition of semantic roles and the application of design patterns. To obtain the Interaction Model of a system, three transformation levels are defined: the system, the use case, and the sentence. This paper focuses on how a transformation of a sentence is performed. Each transformation pattern specifies how to obtain information from the semantic context of a sentence, to deduce its corresponding interaction fragment. Some of the results obtained from the validation of these patterns are also presented.