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The PERSEU aims to join the Information Technology and Physical Therapy at the fight against the RSI. At the first stage of the project, a survey and an evaluation of the clinical state related to RSI was done using the professors and students from UFCG. At the next stage, the RSI prevention tool was planned according to the results of the previous stage, the mains functionalities identified were implemented, and, currently, the software is in conclusion stage. The main contribution of the project consists in the development of a computational tool which aims to provide a prophylaxis to RSI, characterizing itself for been a strongly interdisciplinary research.

In this paper, we propose the UsiWSC framework for designing, deploying and executing Web service compositions with user interactions. The UsiWSC design relies on an extension of the BPEL standard: UI-BPEL. The extension supports the derivation of user interfaces as well as executable compositions for different user contexts. The UsiWSC execution requires the coordination of the control and data flows between web services and user interfaces.