User expertise illuminates people's motivations for using technology (Hassenzahl 2011), including the reasons that they do or do not use applications, devices and services. Identifying user's priorities aligns with the current or 'third wave' of HCI, which embraces the experience and meaning-making of the technology user(s) (Bødker 2015). When working with people living with dementia, expertise from families can also deepen one's understanding of potential users' motivations for and challenges experienced when using new technologies, particularly at home (Astell et al. 2009). In healthcare settings, frontline staff are also experts in understanding the technologies they both use and support, as well as the challenges to innovation and implementation within their services (Astell and Fels In Press).At the present time there are no disease-modifying therapies for dementia (Bennett 2018;Mehta et al. 2017), but current and future technologies could provide practical, affordable and scalable solutions (Astell 2019). Globally, the majority of people live with dementia at home, supported by family, friends and the wider community (Prince et al. 2015). Thus, what is needed are accessible and affordable digital solutions that A. Astell (B) • E. Dove

No abstract