Service-oriented Context-aware Framework
ABSTRACT Location- and context-aware services are emerging technologies in mobile
and desktop environments, however, most of them are difficult to use and
do not seem to be beneficial enough. Our research focuses on designing
and creating a service-oriented framework that helps location- and
context-aware, client-service type application development and use.
Location information is combined with other contexts such as the users'
history, preferences and disabilities. The framework also handles the
spatial model of the environment (e.g. map of a room or a building) as a
context. The framework is built on a semantic backend where the
ontologies are represented using the OWL description language. The use
of ontologies enables the framework to run inference tasks and to easily
adapt to new context types. The framework contains a compatibility layer
for positioning devices, which hides the technical differences of
positioning technologies and enables the combination of location data of