A behavioral notion of subtyping
ACM Transactions on Programming Languages and Systems (TOPLAS)
Cyberguide: a mobile context-aware tour guide
Wireless Networks - Special issue: mobile computing and networking: selected papers from MobiCom '96
SIGMOD '85 Proceedings of the 1985 ACM SIGMOD international conference on Management of data
Developing a context-aware electronic tourist guide: some issues and experiences
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Information modeling and relational databases: from conceptual analysis to logical design
Information modeling and relational databases: from conceptual analysis to logical design
The Aware Home: A Living Laboratory for Ubiquitous Computing Research
CoBuild '99 Proceedings of the Second International Workshop on Cooperative Buildings, Integrating Information, Organization, and Architecture
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
Making Everyday Life Easier Using Dense Sensor Networks
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
ISWC '99 Proceedings of the 3rd IEEE International Symposium on Wearable Computers
A Software Engineering Framework for Context-Aware Pervasive Computing
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
Efficiently Managing Context Information for Large-Scale Scenarios
PERCOM '05 Proceedings of the Third IEEE International Conference on Pervasive Computing and Communications
Benefits of Integrating Meta Data into a Context Model
PERCOMW '05 Proceedings of the Third IEEE International Conference on Pervasive Computing and Communications Workshops
NexusScout: an advanced location-based application on a distributed, open mediation platform
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
NexusEditor: A Schema-Aware Graphical User Interface for Managing Spatial Context Models
MDM '08 Proceedings of the The Ninth International Conference on Mobile Data Management
Context-Aware Computing Applications
WMCSA '94 Proceedings of the 1994 First Workshop on Mobile Computing Systems and Applications
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A central task in the development of context-aware applications is the modeling and management of complex context information. In this paper, we present the NexusEditor, which eases this task by providing a graphical user interface to design schemas for spatial context models, interactively create queries, send them to a server and visualize the results. One main contribution is to show how schema awareness can improve such a tool: the NexusEditor dynamically parses the underlying data model and provides additional syntactic checks, semantic checks, and short-cuts based on the schema information. Furthermore, the tool helps to design new schema definitions based on the existing ones, which is crucial for an iterative and user-centric development of context-aware applications. Finally, it provides interfaces to existing information spaces and visualization tools for spatial data like GoogleEarth.