The eWALL device is able to monitor health of older adults, provide easy access to doctors, and sensing their daily activities with the goal to inform relatives if emergency occurs. The main technical and user requirements for the eWALL device are unobtrusiveness in monitoring functions and seamless interaction with the primary and secondary end users (i.e., patients, and healthcare professionals, and family, corresponding).

Until now, the eWALL device has been tested by using several evaluation methods, some of which are designed to provide an initial feedback on the user-friendliness of the adopted technology.

One of the evaluation methods, which has been performed on the device with the objective to remove usability issues, is the so-called Participatory Heuristic Evaluation, where experts in usability do an inspection as in traditional heuristic evaluation. The term traditional refers to the use of heuristics, a severity rating scale, and a log-schema. After this, work-domain professionals are added as a group of users performing the same inspection. The purpose of extending the heuristic evaluation with these work-domain professionals is to complement the more abstract knowledge of the traditional inspectors’ more abstract knowledge with the very specific knowledge from the work-domain professionals. By using the Participatory Heuristic Evaluation as a method to remove usability problems, it is possible to improve the system. The Participatory Heuristic Evaluation was performed as a part of the development phase of the eWALL device. The photos show Stine V. Hangaard, Clara Schaarup, and Mihail Mihaylov from AAU performing the heuristic evaluations at the CTIF Lab.

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