Controlled availability of pervasive Web services

The increasing use of computers to manage everyday business poses problems for workers when they are away from their home environment. There are two key problems: . How can a mobile worker share a limited part of their home environment with colleagues in a foreign environment while maintaining its security? . How can a mobile worker identify and interact with local services available in a foreign environment? This paper describes a scheme for controlling access to pervasive Web services together with a tangible user interface for their presentation.