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Translation is a process that allows people to learn and comprehend others' ideas or cultures in their own language. Such knowledge sharing will bring major advancement on society and the economy. A translation groupware, that allows two or more human translators to edit the output of machine translation at different times and different places, is developed in order to overcome the limitation of human translators and machine translation. However, translation groupware still not widely adopted by current human translators and the effectiveness is not known. An understanding of how multiple translators work and interact within a group is vital to develop a usable groupware.It is hypothesised that collaborative awareness can improve the translation groupware usability. Collaborative awareness components, such as interpersonal space and shared workspace, are identified as important characteristics to enhance the usability of translation groupware.

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Handheld technology had been used in fast food industry in order to improve their customer services. The usability of these handheld systems is important so that waiter can take customer order effectively, efficiently and satisfactorily. This paper describes how a group of undergraduate students took part in designing and developing a PDA food ordering system. All steps taken are documented in this paper. Finally, the advantages of interaction design approach in this case study are presented. Keywords -interaction design, usability, pda food ordering system, handheld technology, fast-food restaurantI.

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