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AN EXTENSIBLE AND INTERACTIVE RESEARCH PLATFORM FOR EXPLORING FITTS ’ LAW

We demonstrate the utility of a new software platform for the interactive exploration of movement time models such as Fitts’ law. The software is written in Java and provides a flexible environment for HCI research, input device evaluation, throughput comparison and education. It is specifically designed using a patterns-based object model to provide maximum extensibility for new models, task types, and selection modes. The platform can be used to share experimental configurations for more meaningfully comparable experiments. We demonstrate the platform’s utility for HCI research by measuring the effects of posture on movement time. The experimental results show a significant increase in mean movement time when standing compared to sitting while using a trackball.