he integration of the Internet with telecom-munication networks promises a distributed computing infrastructure that provides glob-ally available services. The Internet’s diffusion permits an almost ubiquitous availability of attachment points, allowing users access to its infor-mation services irrespective of their location. In addi-tion, advances in cellular telecommunications and device miniaturization let increasing numbers of portable devices connect to the Internet.1 Several forms of mobility emerge in this scenario. User mobility requires providing users with a uniform view of their preferred working environments—user preferences and subscribed services—independent of their current positions in the network.2 Termina
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.