Supporting gestural input for users on the move

A wearable system is described that enables users to perform simple command selection and input operations. The system is suitable for use while moving and in almost any posture. The implementation uses RFID and is low in cost and power requirements. There is provision for changing between application contexts, making the system suitable for use in mobile and ubiquitous computing environments where the mobility of the user requires frequent changes of focus. The paper includes a preliminary evaluation of the system´s usability.