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Globalization and new technologies with their breakneck competitiveness and speed of doing business have driven the development of e-commerce, changing the way products are sold and bought today. The new digital era in w...

As aplicações distribuídas estão potencialmente sujeitas a falhas. A orientação a grupos é uma boa ferramenta para garantir a continuidade da aplicação, mesmo na presença de falhas. Este artigo apresenta a impl...

This paper sets out to provide a highly automated mechanism for an undo process that can be easily built into a new or existing system. Our proposal is based on the observation that it is not necessary to store the state...

This article shows the experiences carried out in the context of human/robot communication, on the basis of brain bio-electrical signals, with the application of the Brain-Machine Interface from NIA. There are available ...

This is the first attempt of the team to the threads implementation in an operative system with didactic features. In this work we specify the limitations we experienced without going into the analysis of the different t...

This article shows the experiences carried out in the context of human/robot communication, on the basis of brain bio-electrical signals, with the application of the available technologies and interfaces which have facil...

"This work addresses the design and validation of a time-gap synchronized leader-follower formation scheme for wheeled mobile multi-robot systems. This scheme generates reference trajectories for each robot through the e...

Nas atividades de avaliação de usabilidade de software aplicativo confronta-se com problemas gerados muitas vezes por decisões inconsistentes durante o projeto de interfaces com o usuário. Boa parte destes problemas ...

Interaction between user and computer is gradually going beyond the traditional mouse and keyboard. New ways of interaction are emerging, which use new and different means for data acquisition. Virtual or augmented reali...