ETH Zurich :
Computer Science :
Pervasive Computing :
Distributed Systems :
Dagstuhl Ubicomp - Abstract
The Role of a Context Service in a System
that aims at integrating the Digital with the Real World
Fritz Hohl, Sony Research, Germany
One aspect of Ubiquitous Computing is the one of integrating the Digital
and the Real World. A corresponding system that aims at supporting this
integration has to consider three aspects. First, it has to be possible to
represent Real World objects and their attributes in the Digital World.
Second, changes in the Real World have to be reflected in the Digital World.
Third, it should be possible that some aspects of the Real World can be
changed by the Digital World.
The second aspect and some parts of the first aspect can be covered by a
Context Service. A Context Service is able to gather, process, store, and
support context data to other components. Context data is
"any information that can be used to characterize the situation of an
entity," where an entity is e.g. a mobile user. Context data therefore
always relate to such a focus entity, is of a certain type, and occurs in a
certain format. In this talk, such a Context Service is roughly sketched and
its relation to the overall system discussed.