ABSTRACT
Contents 13.1 Introduction .............................................................................................281 13.2 User Models .............................................................................................283 13.3 The Simulator .......................................................................................... 286
13.3.1 Icon Searching Task ......................................................................292 13.3.2 Menu Selection Task .....................................................................293
13.4 Design Optimisation and Adaptation ......................................................295 13.4.1 User Interface Parameter Prediction..............................................297 13.4.2 Adaptation Code Prediction .........................................................298 13.4.3 Modality Prediction ......................................................................298
13.5 Implications and Limitations of User Modelling ......................................299 13.6 Conclusion ...............................................................................................301 References .........................................................................................................302
significant accessibility problems, as found by Rory Cooper at https://rjcooper. com/ipad-vs-netbook (accessed August 21, 2012). On the other hand, the Talking TV by Ocean Blue software and RNIB in the U.K. is a great accessibility product, but it fails to make any market impact, which is also true for several other accessibility products, increasing their cost for end users as well, due to limited demand.
