Design issues in accessible user interface generation for ubiquitous services through Egoki

This paper presents a number of design issues raised in the development of Egoki, a system to automatically generate accessible user interfaces to interact with services provided through ubiquitous computing. Egoki dynamically creates model-based user interfaces for each service from its specification in a User Interface Description Language (UIDL), taking into account the specific requirements of diverse user stereotypes. These user interfaces are finally adapted to each user by means of a user model. Among other issues, in this paper we discuss the need to select an appropriate UIDL and to obtain suitable multimedia interaction resources from the service designer.