A Model-Based, Open Architecture for Mobile, Spatially Aware Applications
SSTD '01 Proceedings of the 7th International Symposium on Advances in Spatial and Temporal Databases
Profile Driven Data Management for Pervasive Environments
DEXA '02 Proceedings of the 13th International Conference on Database and Expert Systems Applications
From Home to World - Supporting Context-aware Applications through World Models
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
Primary-Context Model and Ontology: A Combined Approach for Pervasive Transportation Services
PERCOMW '07 Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications Workshops
Middleware Support for Quality of Context in Pervasive Context-Aware Systems
PERCOMW '07 Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications Workshops
Privacy-Aware Context Discovery for Next Generation Mobile Services
SAINT-W '07 Proceedings of the 2007 International Symposium on Applications and the Internet Workshops
Mobile Service Platform: A Middleware for Nomadic Mobile Service Provisioning
WIMOB '06 Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Privacy-Aware Modelling and Distribution of Context Information in Pervasive Service Provision
PERSER '06 Proceedings of the 2006 ACS/IEEE International Conference on Pervasive Services
Human-Computer Interaction
A spatial programming model for real global smart space applications
DAIS'06 Proceedings of the 6th IFIP WG 6.1 international conference on Distributed Applications and Interoperable Systems
Service discovery protocol interoperability in the mobile environment
SEM'04 Proceedings of the 4th international conference on Software Engineering and Middleware
Context modelling and management in ambient-aware pervasive environments
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Toward wide area interaction with ubiquitous computing environments
EuroSSC'06 Proceedings of the First European conference on Smart Sensing and Context
A context management framework for supporting context-aware distributed applications
IEEE Communications Magazine
Supporting context-aware mobile applications: an infrastructure approach
IEEE Communications Magazine
Middleware for ubiquitous context-awareness
Proceedings of the 6th international workshop on Middleware for pervasive and ad-hoc computing
A flexible and scalable message broker for sensor network integration
Proceedings of the Fourth International ICST Conference on COMmunication System softWAre and middlewaRE
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A context management system is a distributed system that enables applications to obtain context information about (mobile) users and forms a key component of any pervasive computing environment. Context management systems are however very environment-specific (e.g., specific for home environments) and therefore do not interoperate very well. This limits the operation of context-aware applications because they cannot get context information on users that reside in an environment served by a context management system that is of a different type than the one used by the application. This is particularly important for mobile users, whose context information is typically available through different types of context management systems as they move across different environments. In this paper, we address this interoperability problem by placing bridges between different types of context management systems, in particular systems for home, mobile, and ad-hoc environments. The novelty of our bridges is that they focus on resolving functional differences between context management systems, whereas prior work in this area concentrates on resolving differences in data models. We discuss our bridging architecture and zoom in on a few selected bridges, focusing on their context discovery and exchange functions. We also outline how we implemented these bridges.