Role-Based Access Control Models
Computer
The context toolkit: aiding the development of context-enabled applications
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
An architecture for a secure service discovery service
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The mobile people architecture
ACM SIGMOBILE Mobile Computing and Communications Review - Special issue dedicated to Mark Weiser
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Adding some smartness to devices and everyday things
WMCSA '00 Proceedings of the Third IEEE Workshop on Mobile Computing Systems and Applications (WMCSA'00)
WMCSA '00 Proceedings of the Third IEEE Workshop on Mobile Computing Systems and Applications (WMCSA'00)
ISWC '97 Proceedings of the 1st IEEE International Symposium on Wearable Computers
Mobile commerce: framework, applications and networking support
Mobile Networks and Applications
User needs for location-aware mobile services
Personal and Ubiquitous Computing
Location management for mobile commerce applications in wireless Internet environment
ACM Transactions on Internet Technology (TOIT)
Towards service and user discovery on wireless networks
Proceedings of the second international workshop on Mobility management & wireless access protocols
Integrating the physical world with the web to enable context-enhanced mobile services
Mobile Networks and Applications
Anonymous Usage of Location-Based Services Through Spatial and Temporal Cloaking
Proceedings of the 1st international conference on Mobile systems, applications and services
Discovering and using web services in m-commerce
TES'04 Proceedings of the 5th international conference on Technologies for E-Services
Prottoy: a middleware for sentient environment
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Location-Based services for tourism industry: an empirical study
UIC'06 Proceedings of the Third international conference on Ubiquitous Intelligence and Computing
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
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We identify a number of factors that may hinder the commercial success of location-based applications: the concern of privacy, the need to consider context beyond location, the presence of voluminous resources, and the constrained interfaces available on mobile devices. We describe an end-to-end system architecture with integrated support to address these issues. In particular, the architecture includes a Secure Context Service that provides broad context information to applications and allows people to flexibly control the release of their private information, an Intelligent Service Discovery Service that allows for personalized selection of physical and virtual services, and a multi-modal interaction mechanism that enables users to exploit multiple synchronized access channels to interact with an application and to switch among channels at any time. Our goals are to improve user experience, to reduce user distraction and to facilitate awareness of the physical world.