부산대학교 도서관

In this paper, the methodology of text entry experiments is discussed and the current practice is compared to the text entry experiment standardized by ISO 9241-4. Text entry experiments focus on measuring and comparing performance of users entering text. Vast majority of research of new text entry methods does not follow the ISO 9241-4 methodology. We express the need for a new standard which should be discussed in the research community. A text entry method is usually examined in a series of text-copy tasks, a setup in which the user is requested to copy the presented phrase using the method that is being examined. The outcome of the text-copy task is influenced by many factors. This paper examines the effect of one of these factors - the relative position of the presented phrase and the transcribed text. We conducted a controlled experiment with 62 participants using 3 different text entry methods. We found that the position has a significant effect on the subjective evaluation of the text entry method.