The paper discusses how a CAIT (Computer Assisted Interpreter Training) tool can be used to support the teaching and learning of interpreting, and outlines the main features of one such tool, Black Box. The interpreter training curriculum places strong emphasis on students’ autonomous practice. Individual practice and group work are as important as class practice, and yet students do not always have access to suitable study support and training materials. After a short introduction (1), the article begins with an overview of the interpreter training curriculum (2), with the aim of identifying those areas of the latter which could benefit from the support offered by an appropriate software tool. The concept of CAIT (Computer Assisted Interpreter Training) is briefly introduced in (3), in which the development and testing of a pioneering interpreter training prototype (Interpretations) is described. The encouraging response obtained during testing and demos has led to the development of a new, fully-fledged CAIT tool, Black Box, whose main features are presented and discussed in (4). Section 5 concludes the article by highlighting the main benefits of using such a tool and by outlining future development prospects. [Source: abstract in book]