User Evaluation of the MOBOT rollator type robotic mobility assistive device.

In this paper, we report on the evaluation strategy and results obtained from the final end-user evaluation process of an innovative robotic assistive device supporting mobility. More specifically, we report on the evaluation of the MOBOT robotic rollator as regards the system's overall performance and its individual assistive characteristics and functionalities as implemented in respect to (i) the provided cognitive assistance, and (ii) the adopted audio-gestural human-robot communication model. The evaluation phase exploited the QUEST 2.0, ATDPA-Device Form and PYTHEIA scales to measure the subjective satisfaction of the users. Analysis of the results shows that MOBOT was ranked very high by end users in all issues addressed by the three employed scales.