Participation is Blind: Involving Low Vision Lead Users in Product Development

Involving end-users during the development of assistive devices may reduce low satisfaction rates. Yet, involving just any users does not guarantee product success. We propose the lead user method for user involvement during development of systems aimed at improving accessibility. We introduce a case study where we used the lead user method during the development of an accessibility device aimed at improving mobility among low vision persons. Additionally, we review the theoretical background of this approach, introduce our case study and reflect on the lessons learned. The lead user method used in this context offers benefits such as the ability to quickly iteratively design solutions, while offering designers the chance to better understand the context of use. Potential pitfalls of this approach are the selection of the correct lead user, possible increased costs and, design proposals that are not useable to the rest of the target group. Finally, we introduce new research themes related to the involvement of lead users in the development of accessibility products.