The Framy user interface for visually-impaired users

We have developed a multimodal interface; Framy to effectively display large 2-dimenetional data sets such as geographical data on a mobile interface. We have now extended this to be used by visually-impaired users. A pilot study that we conducted, and the interviews with a group of potential stakeholders, helped us to detect some critical problems with the current interface, derive further requirements specific for visually impaired mobile users and re-design Framy accordingly.