Challenges of usability evaluations in the emerging multimedia environment

The rapid development of mobile devices, PDAs, and other wireless technologies,over the past decade ,has engendered ,a plethora ,of portable devices for data transmission and processing applications. Moreover, the development,of digital television and the opportunities opened,by interactive digital TV applications has motivated TV producers,and consumer,electronic manufacturers,to invest ,their research ,efforts in usability areas ,in order ,to help,drive the design ,of future ,interactive services ,and ,devices. The integration of devices,allows to improve,the mobile experience,by integrating cell phones with PCs, the Web, TVs., and,so on.