Five Ways Function Models Enable Accessible Mixed Reality Interfaces

Mixed reality interfaces are used in a variety of contexts, and only some of these can be fully anticipated or controlled by the designer. Accessible mixed reality interfaces further exacerbate this design problem since users will have a variety of individual capabilities, limitations, needs, wants, and values, and frequently accessible inter-faces are used in more complex interaction contexts that may involve close family or assistants. In addition, it is often difficult to carry out extensive user research or involve end-users throughout the design process. This paper explains how function models, which model the organization of high-level functions a system has to carry out, can be helpful as a complementary design method when designing accessible mixed reality interfaces.