An accessible, adaptive and multimodal digital TV framework and corresponding development tool

This paper presents a tool and a framework to develop accessible and adaptable digital TV interfaces for disabled and elderly users. The development methodology involves disabled and elderly users early in the design process and optimizes interfaces using a simulation system. The simulator complements existing user centred design processes and helps designers to understand, visualize and measure effect of impairments on interaction. The adaptive framework supports a wide variety of applications through its easy-to-use APIs. The system is validated through a series of user trials confirming its usefulness for users with different range of abilities.