Development and usability of the EasySeating App as a tool for wheelchair and postural support devices prescription (Preprint)
BACKGROUND EasySeating is a mobile health (mHealth) app that supports the prescription of wheelchair and postural support devices (WPSD). It can be used by occupational therapists (OT) and physiotherapists (PT) who prescribe these devices. The app offers a framework for the prescription procedures, showing images, metrics and details that can guide the prescriber to decide the best equipment for wheelchair users. OBJECTIVE to present the development and usability of the EasySeating app. METHODS This study was divided into three stages and was carried out as an iterative process with eighty eight participants (n=88) that provided information for the software development and its usability. In the Stage 1 data was gathered to develop the first prototype, followed by the Stage 2 where four prototypes were improved by the feedback from experts. Finally in the Stage 3 the usability was tested. Data collection was performed through semi-structured interviews, focus groups and heuristics evaluation. Data analysis was descriptive and qualitative. RESULTS In the Stage 1 was identified the lack of a uniform terminology used by practitioners; however this information was used to create the first prototype based on a range of postural devices reported. In the Stage 2, qualitative information was used to improve the app including images, more options of devices. In Stage 3, the usability test improved the app in the following aspects: smartness, increasing the dialog and feedback with the practitioner. CONCLUSIONS The three stages enable to define a uniform terminology; to identify and recommend a framework for prescription comprising rehabilitation practitioners, technicians and wheelchair users; to document a method to develop a mHealth that can have reproducibility by the international community interested in assistive technology assessment using technology, a new trend in an era of the fourth industrial revolution.