Adaptive user interface based on accessibility context

The substantial involvement of Adaptive User Interfaces (AUI) in providing adaptive and accessible interactive systems has created the need to establish a multimodal framework based on scalable adaptation rules. This paper presents an Adaptive User Interface to Accessibility Context (AUIAC) framework that provides a generic adaptation approach according to the model-driven engineering. It is based on a sequential and layered transformation from platform independent model (PIM) to platform specific model (PSM). It supports different reifications and transitions using adaptive transformation rules specified for each disability and modality. We illustrate the application of some rules on a sample user interface for the case of blind people. Then, we present some usability evaluation results from an empirical study.